KR20170079581A

KR20170079581A - high voltage connector

Info

Publication number: KR20170079581A
Application number: KR1020150190319A
Authority: KR
Inventors: 이진국
Original assignee: 한국단자공업 주식회사
Priority date: 2015-12-30
Filing date: 2015-12-30
Publication date: 2017-07-10
Also published as: KR101759529B1

Abstract

The present invention relates to a high voltage connector. The present invention relates to an electronic device having a casing 10 made of a metal and formed with a terminal insertion port 12, an inner housing 15 inserted into the casing 10 and having a terminal T1 storage part, A terminal T1 inserted and fixed to the inner housing 15 and electrically connected to the counterpart T2 and a wire W connected to the outer surface of the wire W connected to the terminal T1, And a support ring 30 electrically connected to the shield line of the power supply unit 30 to perform a grounding function. A shield plate 40 is provided to be coupled to the support ring 30 and a plurality of elastic pieces 45 protrude from the support ring 30 to be in close contact with the support ring 30, (12) and is energized with the casing (10). The shield plate (40) is closely attached to the inside of the terminal insertion port (12) by a waterproof seal (50). In the present invention, since the waterproof seal 50 located at the rear of the shield member pushes the shield member strongly against the outer surface of the connector casing 10, the electrical connection between the shield member and the casing 10 can be stably performed.

Description

A high voltage connector

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high voltage connector, and more particularly, to a high voltage connector having a shield plate for performing a grounding function in electrical contact with a casing of a connector and a support ring of a wire.

Connectors are used at voltages of various intensities. In recent years, high-voltage connectors are widely used for electric motors and hybrid vehicles because high voltage is used for driving the motors. The wire used in such a high voltage connector has an inner insulating layer surrounding the core wire and a shield wire for grounding between the outer insulating layer forming the appearance of the wire.

When the terminal and the wire are connected, such a shield wire should be electrically connected to the shield member inside the connector without being in electrical contact with the wire. To this end, the shield wire is pressed against the distal end portion of the wire at a position adjacent to the terminal between the support ring and the clamp ring.

At this time, the shield member is brought into contact with the metal case of the connector casing and is brought into contact with the support ring provided on the wire to be grounded. In this case, the shield member may not be brought into contact with the metallic casing of the connector In order to prevent this, there has been a problem that the shield member must be attached to the casing by using a separate fastener or the like.

In addition, since the shield member has to be connected to the wire simultaneously with the casing, there is a problem that the volume or area occupied by the shield member becomes very large and the shield member is exposed to the outside of the casing, .

Korean Patent Publication No. 10-2008-0015342

SUMMARY OF THE INVENTION It is an object of the present invention to provide a shield plate for grounding which is tightly adhered in a casing direction of a housing by watertight sealing, So that they can be stably contacted.

It is another object of the present invention to enable the shield plate to perform a shielding function inside the waterproof area of the connector casing.

According to an aspect of the present invention for achieving the above-mentioned object, the present invention provides an electronic device including a casing made of a metal material, a casing made of a metal, an inner housing formed inside the casing and having a terminal housing part, A support ring inserted into and fixed to the inner housing and electrically connected to the mating member, a support ring coupled to an outer surface of the wire connected to the terminal and electrically connected to a shield wire of the wire to perform a grounding function, A plurality of elastic pieces protruding from the support ring and electrically connected to the support ring, the shield plate being installed at a position adjacent to the terminal insertion port of the casing and electrically connected to the casing; And a shield plate It comprises a water resistant seal for pressing so that close contact with the periphery of the terminal insertion port.

Wherein the shield plate includes a shield body having a shape corresponding to the terminal insertion hole formed with a plate hole through which the wire passes, an elastic piece protruded from the inside of the plate hole and elastically contacted to the support ring, And a grounding protrusion protruding toward the outer surface of the casing corresponding to a peripheral portion of the terminal insertion port.

A plurality of the elastic pieces are provided in a cantilever shape around the inner edge of the plate hole.

The shield plate may include a plurality of plate holes and elastic pieces to be coupled to the plurality of wires.

A partition wall having a width smaller than that of the shield plate is provided inside the terminal insertion port of the casing, and both sides of the shield plate are in close contact with each other between the partition wall and the waterproof seal.

And the pressing protrusion is protruded in the direction of the shield plate.

The grounding protrusion of the shield plate protrudes in an embossed shape and is brought into close contact with the partition wall of the casing. The pressing protrusion provided on the waterproof seal protrudes to a position corresponding to the grounding protrusion, and presses the rear of the grounding protrusion.

The high-voltage connector according to the present invention as described above has the following effects.

According to the present invention, since the waterproof seal located at the rear of the shield plate strongly presses the shield plate toward the inside of the connector casing, the electrical connection between the shield plate and the casing can be stably performed.

Further, electrical connection between the shield plate and the support ring can be stably performed according to the elastic contact between the support ring and the support ring connected to the elastic piece wire provided on the shield plate, and as a result, the grounding performance by the shield plate can be improved .

Since the shield plate is located within the waterproof region of the connector casing, there is no fear of corrosion, and the shield plate occupies only a small area in the waterproof region. Thus, the overall structure is simplified and the manufacturing cost of the shield member is reduced.

1 is a perspective view showing a configuration of an embodiment of a high voltage connector according to the present invention;
2 is an exploded perspective view showing a configuration of an embodiment of a high voltage connector according to the present invention;
3 is a perspective view showing a lower structure in a state in which a lower cover is separated in an embodiment of the present invention;
4 is a perspective view showing a configuration of a support ring and a shield member constituting an embodiment of the present invention.
5 is a perspective view showing the configuration of a shield member constituting one embodiment of the present invention.
6 is a sectional view taken along a line I-I 'in Fig. 1;
7 is a cross-sectional view taken along line II-II 'of FIG. 1;

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the understanding why the present invention is not intended to be interpreted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

According to the present invention, the appearance and the skeleton of the connector are formed by the casing (10). The casing 10 is made of a metal material. In this embodiment, an aluminum material is manufactured by a die casting method. That is, the casing 10 is made of a metal material that can be energized, and therefore, the casing 10 can be grounded through a shield plate 40, which will be described later.

Referring to FIG. 3, a housing space 11 is formed in the casing 10, and an inner housing 15 is installed in the housing space 11. The inner housing 15 is made of an insulating material, and a terminal T1 to be described later is inserted and fixed. An inner hole 15 'is formed in the inner housing 15 for this purpose. The inner housing 15 is formed with a relative coupling hole 17 into which the mating material T2 is inserted. The relative coupling hole 17 is formed in a direction orthogonal to the inner hole 15 '. Accordingly, the direction of coupling with the terminal T1 and the direction of coupling with the partner T2 are different from each other. Here, the counterpart T2 includes the counterpart terminal T1, and part of the counterpart terminal T1 is shown in Fig.

A terminal insertion port 12 is formed at one side of the casing 10. The terminal insertion port 12 is formed by opening one side of the casing 10 and not only the terminal T1 to be described below but also the shield plate 40, the waterproof seal 50 and a part of the seal holder 60 Is inserted. The terminal inserting port 12 has a generally rectangular shape, but it is not necessarily limited thereto.

Referring to FIGS. 6 and 7, a partition wall 13 is provided inside the terminal insertion port 12. The partition wall 13 protrudes in the direction of obstructing the inside of the terminal insertion port 12, and the wire W and the terminal T 1 can pass through the partition wall 13. That is, the partition wall 13 is formed to be narrower than the shield plate 40 to be described below so that the shield plate 40 and the waterproof seal 50 can not pass therethrough.

Meanwhile, a lower plate 19 is assembled to a lower portion of the casing 10, and the lower plate 19 engages with the accommodating space 11. The lower plate 19 is provided with a resiliently deformable fastening protrusion 19 and the fastening protrusion 19 'is fitted and fixed in a bracket hole 18' formed in the bracket 18 of the casing 10.

A terminal T1 and a wire W are inserted into the terminal insertion port 12. [ A support ring 30 is provided on an outer surface of a wire W connected to the terminal T1 and the support ring 30 is coupled to an outer surface of a wire W connected to the terminal T1, ), And performs a grounding function. The support ring 30 is provided at one side of the support ring 30 with a compression ring 38 so that the support ring 30 can be coupled to the outer surface of the wire W. [

More specifically, the support ring 30 is installed to surround the outer surface of the outer end of the outer insulating layer from which a predetermined section is removed so that the inner insulating layer is exposed at the tip of the wire W, and is electrically connected to the shield wire. The support ring 30 is provided with a protruding rib 32 protruding from the central portion of the support ring 30 so that the protruding rib 32 is engaged with the edge of the plate hole 41 'of the shield plate 40, .

The support ring 30 is pressed against the outer surface of the support ring 30 while the tip of the shield wire of the wire W is seated on the support ring 30, As shown in Fig.

A shield plate (40) is inserted into the terminal insertion port (12). The shield plate 40 is in contact with the casing 10 at the inside of the terminal insertion port 12 and at the same time in contact with the support ring 30 and electrically connected with the support ring 30, respectively. Therefore, the casing 10 and the shield wire of the wire W can be electrically connected to each other through the shield plate 40.

The shield body of the shield plate 40 is made of a metal material having a high electrical conductivity. In this embodiment, two plate holes 41 'are formed, and the wire holes 41' W) can be passed. A side surface portion 47 is formed on the edge of the shield plate 40 to have a predetermined width. The side surface portion 47 is supported on the inner surface of the terminal insertion port 12.

An elastic piece 45 is provided inside the plate hole 41 'of the shield plate 40. 4 and 5, the elastic piece 45 is formed in a substantially cantilever shape and is elastically deformable. As shown in FIGS. 4 and 5, the elastic piece 45 is in contact with the outer surface of the support ring 30. The elastic pieces 45 are provided along the inner edge of the plate hole 41 '. And the elastic piece 45 is in contact with the support ring 30 and is substantially electrically connected.

As shown in FIG. 5, the shield plate 40 is provided with a grounding protrusion 46. The grounding protrusion 46 protrudes from the shield plate 40 and more precisely covers the outer surface 13 'of the partition wall 13 of the casing 10 corresponding to the peripheral portion of the terminal insertion port 12. [ As shown in Fig. In this embodiment, the ground projecting portion 46 is formed in an embossed shape. The grounding protrusion (46) allows the shield plate (40) to be more tightly adhered to the inside of the casing (10). 7, the grounding protrusion 46 of the shield plate 40 is in close contact with the outer surface 13 'of the partition wall 13 formed in the casing 10. As shown in FIG.

A waterproof seal (50) is inserted into the terminal insertion port (12). The waterproof seal (50) is inserted into the terminal insertion port (12) to prevent external moisture from entering the casing (10). To this end, the waterproof seal 50 is made of an elastic material such as rubber, and a waterproofing rib 52 protrudes from the side surface of the waterproof seal 50 and can be strongly adhered to the inner surface of the terminal insertion port 12.

A seal hole 51 is formed in the waterproof seal 50 so that the terminal T1 and the wire W can pass through. On the surface of the waterproof seal 50 facing the terminal insertion port 12, a pressing protrusion 55 is provided. The pressing protrusion 55 protrudes toward the shield plate 40 and can push the shield plate 40 toward the partition wall 13 more strongly. At this time, the pressing protrusion 55 provided on the waterproof seal 50 may protrude to a position corresponding to the ground protrusion 46 of the shield plate 40 and press the rear of the ground protrusion 46.

A seal holder (60) is provided behind the waterproof seal (50). The seal holder 60 is located at the inlet side of the terminal insertion port 12 corresponding to the rear of the waterproof seal 50 to prevent the waterproof seal 50 from being separated. A holder hole 61 is formed in the seal holder 60 so as to allow the wire W to pass therethrough and an extension portion 62 is provided in a direction in which the width of the body portion is widened. And is a portion for pushing the seal 50, and at the same time, caught by the fixing plate 70, which will be described below.

A fixing plate (70) is coupled to the terminal insertion port (12). The fixing plate 70 is fixed to a coupling part 16 provided at one side of the casing 10 using a coupling hole 78. The coupling hole 78 is formed in the coupling hole 16 of the coupling part 16 '). The fixing plate 70 is fixed by fixing the seal holder 60 to prevent the waterproof seal 50 and the shield plate 40 located inside the seal holder 60 from being detached as well. One through hole 71 is formed in the fixing plate 70 to allow the wire W to pass therethrough.

Hereinafter, a process of assembling the high voltage connector according to the present invention will be described.

For reference, the inner housing 15 is assembled in the housing space 11 of the casing 10, and the lower plate is assembled in the casing 10. [ First, a terminal T1 is coupled to a wire W, and a support ring 30 is assembled to a wire W. A support ring 30 is connected to the support ring 30 so that a predetermined section is removed so that the inner insulation layer of the wire W is exposed And is electrically connected to the shield line so as to surround the outer surface of the tip of the outer insulating layer. The support ring 30 can be firmly fixed to the wire W when the compression ring 38 surrounding a part of the support ring 30 is pressed.

Next, the wire W is inserted into the receiving space 11 through the terminal insertion port 12. At this time, the shield plate 40, the waterproof seal 50, and the seal holder 60 ) Are sequentially inserted. A fixing plate 70 is coupled to the rear of the seal holder 60 to support the seal holder 60. The fixing plate 70 is fixed to the periphery of the terminal insertion port 12 through the fixing member.

At this time, the shield plate 40 is positioned in front of the waterproof seal 50, and the partition wall 13 of the casing 10 is blocked on the front surface of the shield plate 40. The shield plate 40 is sandwiched between the partition wall 13 and the waterproof seal 50. The waterproof seal 50 pushes the seal holder 60 so that the waterproof seal 50 Serves as a kind of support spring and pushes the waterproof seal 50 strongly toward the partition wall 13. That is, the waterproof seal 50 pushes the shield plate 40 in the direction of the arrow in Fig.

The shield plate 40 is strongly adhered to the outer surface 13 'of the partition wall 13 so that the electrical connection between the casing 10 and the shield plate 40 can be stably performed. As shown in FIG. 7, the pressing protrusions 55 provided on the waterproof seal 50 strongly push the shield plate 40.

6, the grounding protrusion 46 provided on the shield plate 40 protrudes in the direction of the partition wall 13 so that the contact portion with the partition wall 13 is concentrated on the grounding protrusion 46, Therefore, a stronger and more stable connection can be made between the shield plate 40 and the partition wall 13.

Further, since the shield plate 40 is located in the waterproof region of the connector casing 10, there is no fear of corrosion.

In this state, the terminal (T1) and the wire (W) are inserted into the terminal insertion port (12). The support ring 30 provided on the wire W passes through the shield plate 40 while the terminal T1 and the wire W pass through the waterproof seal 50 and then through the shield plate 40 . More precisely, when the wire W passes through the plate hole 41 'of the shield plate 40, the shield plate 40 is moved to the periphery of the support ring 30, .

At this time, the elastic piece 45 of the shield plate 40 is brought into close contact with the outer surface of the support ring 30. The elastic piece 45 can be brought into close contact with the outer surface of the support ring 30 with an elastic force, so that electrical connection between the elastic piece 45 and the support ring 30 can be achieved. That is, the shield plate 40 and the support ring 30 can be strongly adhered to each other by the elastic force of the elastic piece 45 itself without a separate fastener 78 or a coupling structure.

The terminal T1 passes through the inner hole 15 'of the inner housing 15 and is accommodated in the inner housing 15 and then fixed. In this state, after the casing 10 is fixed to the inside of the vehicle, the counterpart T2 is coupled, and the counterpart T2 is connected to the terminal T1. Of course, when the casing 10 is fastened to the portion where the counterpart T2 is already installed, the counterpart T2 and the terminal T1 may be connected naturally.

Meanwhile, the high voltage connector of the present invention may be assembled differently from the above-described procedure. The seal holder 60, the waterproof seal 50, and the shield (not shown) are attached to the wire W in a state where the support ring 30 and the compression ring 38 are assembled to the outer surface of the wire W, After the plate 40 is fitted and assembled, the entire plate 40 is inserted together into the terminal insertion port 12. Of course, at the end, the fixing plate 70 is fixed through the fastening holes 78.

This assembly method has an advantage that an operator can assemble the shield plate 40 and the support ring 30 more accurately from the outside of the terminal insertion port 12, but the assembly number can be added.

When the assembly of the high voltage connector is completed, the shield plate 40 is connected to the support ring 30 and connected to the casing 10 as described above. Therefore, current flows in the order of wire (W) -> shield plate (40) -> casing (10) and finally grounded to reduce noise.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: casing 30: support ring
40: shield plate 50: waterproof seal
60: seal holder 70: stationary plate

Claims

A metal casing formed with a terminal insertion port,
An inner housing inserted into the casing and having a terminal accommodating portion;
A terminal inserted through the terminal insertion port and inserted into the inner housing and electrically connected to the counterpart;
A support ring coupled to an outer surface of a wire connected to the terminal and electrically connected to a shield wire of the wire to perform a grounding function,
A shield plate coupled to the support ring and having a plurality of resilient pieces protruding from the support ring and being in close contact with the support ring and electrically connected to the support ring,
And a waterproof seal which is in close contact with the terminal insertion port to perform a waterproof function and is located behind the shield plate and presses the shield plate so as to closely contact the inside of the terminal insertion port.

The shield plate according to claim 1, wherein the shield plate
A shield body having a plate hole through which the wire passes and having a plate shape corresponding to the terminal insertion port,
An elastic piece projecting from the inside of the plate hole and elastically contacting the support ring,
And a grounding protrusion protruding toward an outer surface of the casing corresponding to a peripheral portion of the terminal insertion port on the outer surface of the shield body.

The high voltage connector according to claim 2, wherein a plurality of the elastic pieces are provided in a cantilever shape around the inner edge of the plate hole.

The high-voltage connector according to claim 1, wherein the shield plate has a plurality of plate holes and elastic pieces, and is connectable to a plurality of wires.

The high voltage connector according to claim 1, wherein a partition wall having a narrower width than the shield plate is provided inside the terminal insertion opening of the casing, and both sides of the shield plate are in close contact with each other between the partition wall and the waterproof seal.

The high-voltage connector according to claim 5, wherein the waterproof seal is provided with a pressing projection protruding in the direction of the shield plate.

The waterproof seal of claim 6, wherein the grounding protrusion of the shield plate protrudes in an embossed shape and is in close contact with the partition wall of the casing, and the pressing protrusion provided on the waterproof seal protrudes to a position corresponding to the grounding protrusion, Lt; / RTI >