KR20230091848A - Shielding structure of high voltage connector - Google Patents

Abstract

An object of the present invention is to provide a high-voltage connector shielding structure that can improve the efficiency of batch shielding work, reduce cost and weight, and solve quality problems caused by using shielded wires.
A connector into which wiring is inserted and fixed; and a shielding plate connected to the connector and arranged to surround an outer circumference of the wiring, wherein the shielding plate includes a first shielding plate surrounding one side of the wiring and a second shielding plate surrounding the other side of the wiring, A cover formed by combining the first shielding plate and the second shielding plate as a half body and assembled to an outer surface of the shielding plate; wherein the cover is formed by combining the first cover and the second cover as a half body, Covering the shielding plate, the first extension surface and the second extension surface extending outwardly at both side ends of the first shielding plate and the second shielding plate, respectively, and extending from the first extension surface and the second extension surface. And characterized in that the first cover assembly surface and the second cover assembly surface are formed respectively inserted into the first cover and the second cover.

Description

Shielding structure of high voltage connector {Shielding structure of high voltage connector}

The present invention relates to a shielding structure for preventing electromagnetic waves from leaking from a high-voltage connector and causing noise to peripheral components, and more particularly, to a high-voltage connector shielding structure that shields the entire wiring at once.

Recently, as interest and demand for eco-friendly vehicles increase, the importance of high-voltage wiring-related technology is also increasing domestically and abroad. Connectors dedicated to high voltage are used in electric vehicles, and depending on the structure, either collective shielding that shields the entire wiring at once or individual shielding that shields each wire is applied.

1 is a schematic diagram for explaining a general batch shielding method. Referring to this, batch shielding arranges a shielding line 3 surrounding a wiring 2 in which an insulator is wound around a conductor wire, and a corrugated gate is placed on the outside of the shielding wire 3. It is made in a way to cover the exterior material 5 of the back.

Figure 2 is a batch shielding operation flow chart of a conventional shielding structure. Referring to this batch shielding method in more detail, first, the wiring 2 is inserted into the connector 1 and mounted, and the shielding wire insertion facility 3a After securing the internal space by inserting the shielding line (3) into the shielding line (3), the wiring (2) is passed through the shielding line (3). Thereafter, the ear clamp 4 is fastened so as to surround the shield wire 3 outside the housing of the connector 1, and the shield wire 3 is bent in the reverse direction to arrange it. Thereafter, the exterior material 5 is inserted, the grommet 6 is installed outside the exposed shielding line 3, and then wrapped with a strap and taped 7.

The collective shielding structure, which is operated in this order, requires shielding wire insertion equipment and has a large workability variance, and the work process is complicated and the cost and weight are excessive. is being treated as a chronic issue of

In addition, in the case of this method, there are quality problems that are vulnerable to external impact, scratches occur on the shield case and die-casting housing when the connector is coupled, and there is a risk of arc generation due to metal powder generated inside the connector.

The present invention is to solve the problems of the prior art as described above, and specifically, an object of the present invention is to provide a high-voltage connector shielding structure that can improve the efficiency of batch shielding work and reduce cost and weight.

Another object of the present invention is to provide a high-voltage connector shielding structure capable of solving quality problems caused by using shielded wires.

Embodiments of the present invention provide the following high voltage connector shielding structure in order to solve the above problems.

The present invention is a connector in which the wiring is inserted and fixed; and a shielding plate connected to the connector and arranged to surround an outer circumference of the wiring, wherein the shielding plate includes a first shielding plate surrounding one side of the wiring and a second shielding plate surrounding the other side of the wiring, A cover formed by combining the first shielding plate and the second shielding plate as a half body and assembled to an outer surface of the shielding plate; wherein the cover is formed by combining the first cover and the second cover as a half body, Covering the shielding plate, the first extension surface and the second extension surface extending outwardly at both side ends of the first shielding plate and the second shielding plate, respectively, and extending from the first extension surface and the second extension surface. And characterized in that the first cover assembly surface and the second cover assembly surface are formed respectively inserted into the first cover and the second cover.

In addition, fastening lances are formed on outer surfaces of both ends of the first cover, and lance fastening portions into which the fastening lances are inserted are correspondingly formed on outer surfaces of both ends of the second cover.

In addition, the fastening lance is characterized in that one end is formed as a fixed end and the other end is formed as a free end and is elastically deformed and inserted into the lance fastening part.

In addition, the fastening lance has a fastening protrusion protruding from the surface in contact with the inner surface of the lance fastening part, and as the fastening lance elastically recovers on the inner surface of the lance fastening part, a fastening groove for engaging the fastening protrusion is concave. characterized by

According to the problem solving means of the present invention as described above, various effects including the following can be expected. However, the present invention is not established when all of the following effects are exhibited.

According to the structure including the first and second shielding plates of the present invention, the first and second shielding plates can be combined from the outside of the wiring, unlike the conventional wiring insertion facility required when using a braided wire or a shielded wire. There is an effect that workability is very simple and weight and cost can be reduced.

In addition, by having a structure in which a shielding tube having shielding performance and a shielding plate can be coupled thereto, a shielding line between the shielding tube and the shielding plate can be stably connected.

In addition, by the concave elevation structure formed on the shielding plate, coupling with the cover and the connector can be made firmly, and in addition, the shield case of the connector and the shielding line of the shielding line can be accurately and stably connected.

In addition, the lengths of the first extension surface and the second extension surface of the shielding plate are formed to be different, and the inflow of foreign substances or moisture from the outside of the cover can be prevented by the first and second watertight parts structures formed on the cover.

1 is a schematic diagram for explaining a general collective shielding method;
Figure 2 is a batch shielding operation flow chart of a conventional shielding structure,
3 is a perspective view of a high voltage connector shielding structure according to the present invention;
Figure 4 is an exploded perspective view of Figure 3;
5 is a diagram showing lines and connection points to which shields are connected;
6 is a longitudinal cross-sectional view showing a state cut along A-A' of FIG. 5;
7 is an enlarged cross-sectional and perspective view of the shield connection point of FIG. 5;
8 is a cross-sectional and perspective view showing detailed shapes of a first shielding plate and a second shielding plate;
Figure 9 is an exploded perspective view showing the coupling relationship between the first shielding plate and the first cover and the second shielding plate and the second cover in an enlarged manner;
Figure 10 is a combined perspective view of Figure 9;
11 is an enlarged cross-sectional view of a shielding connection structure of a first shielding plate and a shield case of a connector;
12 is a perspective view showing in detail a tube coupling portion connecting a second cover and a shielding tube;
13 is a shielding operation flow chart using the present invention.

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

1 is a schematic diagram for explaining a general batch shielding method, Figure 2 is a batch shielding operation flow chart of a conventional shielding structure, Figure 3 is a perspective view of the high voltage connector shielding structure of the present invention, Figure 4 is an exploded perspective view of Figure 3, Figure 5 is a shielding Figure 6 is a longitudinal cross-sectional view showing a state cut along A-A' of FIG. 5, Figure 7 is a cross-sectional and perspective view showing an enlarged shield connection point of FIG. 8 is a cross-sectional and perspective view showing detailed shapes of the first shielding plate and the second shielding plate; Figure 10 is a combined perspective view of Figure 9, Figure 11 is an enlarged cross-sectional view showing the shield connection structure of the first shield plate and the shield case of the connector, Figure 12 is a perspective view showing in detail the tube coupling portion connecting the second cover and the shield tube 13 is a shielding operation flow chart using the present invention.

As shown in these figures, one embodiment of the present invention is a connector 1, a wiring 2 inserted into the connector 1, a shielding tube 50 winding the wiring 2, It includes a shielding plate disposed to surround the wiring 2 and a cover assembled to surround the shielding plate. Here, the connector 1 and the wiring 2 have the same configuration as the general high voltage connector 1 and the wiring 2.

The shielding tube 50 has a shape in which peaks 51 and valleys 52 are repeatedly formed along the longitudinal direction, like a corrugated gate, and the peaks 51 and valleys 52 may form a thread-like shape. In addition, the shielding tube 50 is preferably formed of soft plastic having shielding performance. For example, there are EMI materials such as nylon that shield electric and magnetic waves.

The shielding plate includes a first shielding plate 60 and a second shielding plate 70, and is formed in a tubular shape as a whole. The first shielding plate 60 and the second shielding plate 70 are formed as half bodies to surround one side and the other side of the wiring 2 from the outside, respectively. One end of the shielding plate is in contact with the shield case 11 installed inside the connector 1, and the other end is installed in contact with the shielding tube 50. Here, the shield case 11 is formed in a rectangular tube body, etc., is disposed inside the connector 1 in the circumferential direction of the connector 1, and is configured to shield electromagnetic waves inside the connector 1. Therefore, the shielding line is connected to the shield case 11, the shielding plate, and the shielding tube 50, so that electromagnetic waves can be prevented from leaking to the outside from the connector 1 and the wiring 2.

Referring to FIG. 5 , the shielding tube and the shielding plate are connected at the first connection point (A), and the shielding plate and the shield case 11 of the connector 1 are connected at the second connection point (B). The shield connection structure is shown in more detail in FIGS. The first connection point (A) has a spring structure in which the wrinkles 62 formed inside the shield plate are engaged with the valleys 52 formed in the shield tube 50, and the bent surface 63 formed on the shield plate has a spring structure. It may be in close contact with the shielding tube 50. In addition, a shield case 11 is disposed outside the inner housing 12 of the connector 1, and the shield case 11 further protrudes outward from the outer housing 13 of the connector 1. Therefore, it has an area that can be interviewed with the shielding plate. The concave surface 65 of the shielding plate is in close contact with this part through a spring structure and can become the second connection contact point (B).

Referring to the configuration of the shielding plate in more detail with reference to FIG. 8, the first shielding plate 60 and the second shielding plate 70 are each formed as a shielding body 61, and the other end inside the shielding tube 50 described above. A bent surface 63 on which wrinkles 62 are formed so as to be in contact with the outer circumferential surface is formed. As shown in I of FIG. 8, the bending surface 63 is formed by extending the bending surface 63 that is bent inwardly from the shield 61, and wrinkles 62 are formed on the bending surface 63 to form a shield tube. Engaged with the bone 52 of (50), the end of the bent surface 63 is formed with a stopper 64 extending in a direction perpendicular to the bent surface 63. The stopper 64 is a configuration for limiting the insertion depth of the shield tube 50 . The shielding tube 50 is the first shielding plate 60 along the longitudinal direction of the wiring 2 in a state where the first shielding plate 60 and the second shielding plate 70 are disposed to surround the wiring 2 And it is inserted between the second shielding plate (70). As the shielding tube 50 is formed of soft plastic, it is elastically deformed and goes beyond the wrinkles 62, and insertion is restricted by the stopper 64. In addition, the shield tube 50 and the shield plate can be closely interviewed by the material of the shield tube 50 and the structure of the bent surface 63 and the wrinkles 62 of the shield plate.

In addition, a plurality of slots 66 may be formed at one end of the first shielding plate 60 and the second shielding plate 70 and a concave surface 65 may be formed between the slots 66 . This is shown in II of FIG. 8 and referring to this, the concave elevation 65 is formed by the slot 66 as a free end that can flow in and out of the shield plate. The concave elevation surface 65 is formed concave inward, and is located at one end of the concave surface contacting the shield case 11 when assembled to the connector 1 and the concave elevation surface 65, and is located in the outward direction of the connector 1 from the concave surface. It includes a support surface 67 extending into. In addition, a bent portion 65a bent in a direction toward the shield case 11 may be formed on the concave surface. The assembly relationship with the cover using the concave surface will be described again after the cover is described below.

Also, referring to Ⅲ in FIG. 8 , a first extension surface 68 and a second extension surface 78 are formed on both side ends of the first shielding plate 60 and the second shielding plate 70 in an outward direction, respectively. It can be. Furthermore, a first cover assembly surface 69 and a second cover assembly surface 79 may be formed from both ends of the first extension surface 68 and the second extension surface 78 in a direction perpendicular thereto. When assembling the present invention, the first extension surface 68 and the second extension surface 78 come into contact, and the first cover assembly surface 69 and the second cover assembly surface 79 face opposite directions. do. The first extension surface 68 and the second extension surface 78 may have different lengths.

The cover surrounds and fixes the outside of the shielding plate, and is a configuration for connecting the shielding tube 50, the shielding plate, and the shielding line of the shield case 11, and detailed configurations are shown below in FIG. In the cover, the first cover 80 and the second cover 90 are assembled as a half body to form a tubular shape, and the inner surface abuts against the shielding plate to fix the shielding plate. The first cover 80 and the second cover 90 may be formed to surround the first shielding plate 60 and the second shielding plate 70, respectively, and may be assembled such that both side ends come into contact with each other.

Also, referring to FIGS. 9 and 10 , first assembly grooves 89 may be recessed at both side ends of the first cover 80 so that the above-described first cover assembly surfaces 69 may be inserted. Accordingly, the first shielding plate 60 and the first cover 80 may be assembled by inserting the first cover assembly surface 69 into the first assembly groove 89 . In addition, a jaw-shaped first watertight portion 85 formed as a part of the first assembly groove 89 and formed to come into contact with the second extension surface 78 when assembled may be formed, and the first watertight portion 85 ) and a second watertight portion 86 protruding to form a chin may be formed. Further, fastening lances for assembly with the second cover 90 may be formed on outer surfaces of both ends. A fastening protrusion 84 is formed on the fastening lance 83 to prevent separation after fastening.

Second assembly grooves 99 may be recessed at both side ends of the second cover 90 so that the above-described second cover assembly surfaces 79 may be inserted. Further, the second assembly groove 99 may have a concave width set so that the second watertight portion 86 can be inserted therewith. In addition, on the outer surface of both ends, a lance fastening portion 93 into which the fastening lance 83 can be contracted and inserted is formed, and on the inner surface of the lance fastening portion 93, while the fastening lance 83 is restored, the fastening protrusion ( 84) may be formed with a fastening groove 94 that can be caught.

Therefore, based on the direction of FIG. 10, when the first shielding plate 60, the second shielding plate 70, the first cover 80 and the second cover 90 are assembled, the second watertight part 86 It is possible to prevent moisture from entering from the outside in the lateral direction, and the first watertight portion 85 can prevent moisture from entering upward from the second watertight portion 86 .

In addition, the first cover 80 and the second cover 90 may be formed with a pressing protrusion 82 corresponding to the above-described concave surface 65 and inserted into the concave surface 65 to press it. Furthermore, a support groove 82a into which the support surface 67 of the shield plate can be inserted may be formed on one side of the pressing protrusion 82 . As shown in (a) and (b) of Figure 11, the width of the support groove (82a) is formed larger than the support surface 67, the innermost end of the support surface (67a) of the support groove (82a) A groove is formed in a shape corresponding to

Therefore, as shown in FIG. 11, when the concave surface 65 of the shield plate is placed in contact with the outer surface of the shield case 11 of the connector 1 in a state where the cover and the shield plate are assembled and pressurized, the pressing protrusion 82 A structure in which the support surface 67 can be inserted and fixed to the support surface 67 while the bending portion 65a formed on the elevation surface 65 is pressed and unfolded while being supported by the shield case 11. am. Then, when the first cover 80 and the second cover 90 are fastened by the fastening lance 83, the concave elevation 65 of the shielding plate and the shield case 11 maintain an interview state and the shielding line is connected. It will be.

In addition, a tube coupling portion 100 that can be coupled to an end of the shield tube 50 may be formed on the first cover 80 or the second cover 90 . In the drawing, it is shown as an example that the tube coupling part 100 is formed integrally with the second cover 90. Referring to FIG. 12, a tube coupling portion 100 is formed on the second cover 90 located at the bottom, and the tube coupling portion 100 forms an extended surface with the second cover 90, and the shield tube 50 ) It may include a first coupling portion 102 formed to surround one surface, and a second coupling portion 101 coupled to the first coupling portion 102 and the hinge 103. Furthermore, a coupling lance 105 may be formed in the second coupling portion 101 , and a lance coupling portion 106 may be formed in the first coupling portion 102 . The coupling lance 105 and the lance coupling portion 106 may be provided in the same principle as the aforementioned coupling lance 83 and the lance coupling portion 93. In addition, coupling protrusions 104 corresponding to the peaks 51 and valleys 52 of the shield tube may be formed in a screw thread shape on the inner surfaces of the first coupling portion 102 and the second coupling portion 101 . Therefore, when the first coupling part 102 and the second coupling part 101 are assembled in a state where the shield tube 50 is inserted into the shield plate, the coupling protrusion 104 is fixed to the shield tube 50 and the shield tube is a structure that does not escape.

The assembling method of the present invention will be described using FIG. 13 . First, as shown in (a), the first shielding plate 60 and the first cover 80 are assembled, and the second shielding plate 70 and the second cover 90 are assembled. At this time, the extension surface and the cover assembly surface formed at both side ends of the shield plate are assembled at both ends of the cover. And, as shown in (b), the connector 1 to which the wiring 2 is fastened is disposed inside the shielding plate. At this time, the concave elevation 65 of the shielding plate is arranged to face the shield case 11, and the shielding line between the shield case 11 and the shielding plate is connected. Then, as shown in (c), a shielding tube is inserted into the outer circumference of the wiring 2, and one end of the shielding tube is inserted into the shielding plate. The shielding tube may be inserted until it reaches the stopper 64 formed on the shielding plate, and at this time, the shielding line between the shielding plate and the shielding tube is connected. And when the tube coupling part 100 is fastened as in (d), the assembly is completed as in (e). The assembly work according to such a structure has the advantage of significantly simplifying the process by using a conventional shield wire insertion facility and taping, and thus improving workability. In addition, since no shielding wire is used, scratches or metal powder are not generated on the die-casting part, so there is an advantageous effect that durability is also improved.

In this specification, each configuration of one embodiment of the present invention has been separately described, but embodiments that can be derived by arbitrarily combining some configurations also fall within the scope of the present invention.

The above description is only illustrative of the technical idea of the present invention, and those skilled in the art can make various modifications and variations without departing from the essential characteristics of the present invention. The protection scope of should be interpreted by the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

1 connector 2 wiring
11 Shield case 12 Inner housing
13 Outer housing 50 Shield tube
51 mountains 52 goals
60 first shielding plate 61 shielding body
62 corrugation 63 bending surface
64 stopper 65 concave elevation
65a bend 66 slot
67 support surface 67a end of support surface
68 1st extension surface 69 1st cover assembly surface
70 Second shielding plate 78 Second extension surface
79 2nd cover assembly surface 80 1st cover
81 first cover body 82 pressing protrusion
82a support groove 83 fastening lance
84 fastening protrusion 85 first watertight part
86 2nd watertight part 89 1st assembly groove
90 Second cover 93 Lance fastening part
94 fastening groove 99 second assembly groove
100 tube coupling part 101 second coupling part
102 first coupling part 103 hinge
104 coupling protrusion 105 coupling lance
106 lance joint

Claims (4)

A connector into which wiring is inserted and fixed; and
a shielding plate connected to the connector and disposed to surround an outer circumference of the wiring;
Including,
The shielding plate includes a first shielding plate surrounding one side of the wiring and a second shielding plate surrounding the other side, and is formed by combining the first shielding plate and the second shielding plate as a half body,
a cover assembled to an outer surface of the shielding plate;
Including more,
In the cover, the first cover and the second cover are combined as a half body to cover the shielding plate,
At both ends of the first shielding plate and the second shielding plate, a first extension surface and a second extension surface extending outwardly, respectively, extending from the first extension surface and the second extension surface, and the first cover and A high voltage connector shielding structure, characterized in that a first cover assembly surface and a second cover assembly surface respectively inserted into the second cover are formed.
According to claim 1,
Fastening lances are formed on the outer surfaces of both ends of the first cover,
The high voltage connector shielding structure of claim 1 , wherein lance fastening portions into which the fastening lances are inserted are formed to correspond to outer surfaces of both ends of the second cover.
According to claim 2,
The high-voltage connector shielding structure, characterized in that one end of the fastening lance is formed as a fixed end and the other end is formed as a free end and is elastically deformed and inserted into the lance fastening part.
According to claim 3,
The fastening lance has a fastening protrusion protruding from the surface in contact with the inner surface of the lance fastening part,
The high-voltage connector shielding structure, characterized in that a fastening groove for engaging the fastening protrusion is concave on an inner surface of the lance fastening part as the fastening lance elastically recovers.

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