KR102264994B1 - Earthing apparatus for connector block and earthing instrument - Google Patents

Abstract

The present invention relates to a grounding device for a connector block and a grounding tool used therefor. In the present invention, the block body 10 is made of a synthetic resin material. A connector through hole 12 is formed on one side of the block body 10 , and a ground wall 14 is formed on one surface of the block body 10 corresponding to the edge of the connector through hole 12 . A grounding hole 30 made of a conductive material is installed on the inner surface of the grounding wall 14 . A ring terminal 40 for grounding is fastened to the coupling piece 36 of the grounding port 30 by a fastening bolt 40'.

Description

Grounding apparatus for connector block and grounding instrument used therefor

The present invention relates to a grounding device for a connector block and a grounding tool used therein, and more particularly, to a grounding device for a connector block that performs grounding in a cover made of a non-conductive material, and a grounding tool used therein.

Grounding is very important to maintain the safety of general electrical facilities. In addition, in order to facilitate the operation of the electronic device, the grounding is performed for the purpose of preventing electric shock due to various causes.

Recently, as electric vehicles are commercialized, high voltages are also used in automobiles, and accordingly, the importance of grounding is increasing. Since reducing the weight of an electric vehicle is directly related to reducing the force required to drive the electric vehicle, many studies are being conducted.

As such, for the purpose of reducing the weight of the electric vehicle, it is necessary to use a relatively light material such as a synthetic resin from a metal. However, in the case of metal, it is easier to perform grounding because it can conduct electricity. However, if it is replaced with a synthetic resin material, the task of solving the grounding remains.

Japanese registered patent JP3269794

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems described above, and to make the block body of a connector block used in a vehicle made of a synthetic resin material while allowing smooth grounding.

Another object of the present invention is to provide a grounding tool used for grounding through a block body made of a synthetic resin material.

Another object of the present invention is to accurately couple the grounding tool used for grounding through the block body made of a synthetic resin material to the connector part of the block body.

According to a feature of the present invention for achieving the above object, the present invention is a block body made of a synthetic resin material and having a ground wall formed to protrude from one surface around the connector through hole, and installed on the inner surface of the ground wall It may include a grounding hole made of a conductive material, a connector positioned in the connector through hole and having a shield shell electrically connected to the grounding hole therein, and a terminal fastened to a coupling piece of the grounding hole and performing grounding. and the grounding sphere has a grounding sphere body made of a conductive material, a plurality of hooks formed around the edge of one end of the grounding sphere body to be hung on the outer surface of the grounding wall, and one side of the grounding sphere body to face It may include a coupling piece made integrally with the grounding body body.

A dividing slit is formed in the ground wall to extend from the front end of the ground wall to the surface of the cover.

A fastening hole for simultaneous fastening of the grounding port and the terminal is formed in the grounding wall.

The fastening bolt is fastened through the first fastening hole of the coupling piece corresponding to the fastening through hole and the second fastening hole formed in the grounding sphere body of the grounding hole at the same time.

A coupling piece having the first fastening hole is positioned on the outer surface of the ground wall in which the fastening through hole is formed, and the grounding sphere body in which the second fastening hole is formed is positioned on the inner surface of the ground wall.

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The grounding sphere body is made of a metal plate in a cylindrical shape, and a slit-corresponding part is formed at a position corresponding to the divided slit formed in the grounding wall, and at both ends of the grounding sphere body facing the slit-corresponding part, the second slit is located A first slit insertion portion and a second slit insertion portion are formed.

According to another feature of the present invention, the present invention provides a grounding sphere body made of a conductive material and having a cylindrical shape so that both ends of a thin metal plate face each other to form a slit-corresponding portion, and a predetermined edge of the grounding sphere body surrounding one side. A hook piece formed by bending a plurality of pieces at an interval, one side facing the outer surface of the grounding tool body, and first and second slit insertion parts provided at both ends of the grounding tool body in the slit-corresponding part; and a coupling piece extending from the grounding body to face the outer surface of one side of the grounding body.

A first coupling hole having a screw portion formed on the inner surface of the coupling piece is formed, and a second coupling hole having a screw portion formed on the inner surface of the grounding sphere body is formed to coincide with the center of the first coupling hole.

The coupling piece extends from the second slit insertion part and is bent.

The coupling piece is formed by extending and bending the grounding sphere body.

The grounding device for a connector block and the grounding tool used therein according to the present invention have at least one or more of the following effects.

In the present invention, the block body of the connector block is made of a synthetic resin material in an automobile, etc., and while the weight is greatly reduced, the grounding through the connector for electrical connection with the outside from both sides of the block body interposed therebetween is effective.

The earthing sphere of the present invention is located on the inner surface of the earthing wall formed in the block body, and the earthing sphere body is in contact with the contact piece of the connector and at the same time is fastened with the ring terminal so that when the mating connector is coupled, the earthing connection is made from the mating connector to the ring terminal. . Here, since the grounding sphere body is located on the inner surface of the grounding wall made of synthetic resin to perform grounding connection with the shield shell of the connector, there is an effect of making the grounding connection in the synthetic resin block body with a minimum configuration.

In the grounding tool used in the present invention, a plurality of hook pieces are provided around the grounding body body located on the inner surface of the grounding wall and are in close contact with the outer surface of the grounding wall. have.

In addition, when the first and second slit insertion portions of the grounding tool are located in the divided slits of the grounding wall, the grounding tool can be inserted into the grounding wall, so that the assembly of the grounding tool can be facilitated.

In addition, in the present invention, since there are coupling pieces of the grounding port and the grounding ball on both surfaces of the grounding wall with the fastening hole of the grounding wall interposed therebetween, the effect of firmly coupling the grounding ball to the grounding wall while the ring terminal is coupled to the coupling piece have.

1 is a perspective view showing the configuration of a preferred embodiment of a grounding device for a connector block according to the present invention.
Figure 2 is an exploded perspective view showing the configuration of the embodiment of the present invention.
Figure 3 is a perspective view showing the configuration of an important part of the block body constituting the embodiment of the present invention.
4 is a perspective view showing the configuration of a connector used in an embodiment of the present invention;
Figure 5 is a front view showing the configuration of the embodiment of the present invention in the direction of arrow A in Figure 1;
6 is a perspective view showing a grounding tool according to an embodiment of the present invention;
7 is a cross-sectional view showing a path in which the ground is made in the embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the components from other components, and the essence, order, or order of the components are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but another component is between each component. It will be understood that may also be "connected", "coupled" or "connected".

In the drawings, a preferred embodiment of a grounding device for a connector block and a preferred embodiment of a grounding tool used therein are shown. In the connector block, a connector is installed on one side to perform electrical connection through the connector. The connector block is, for example, installed in a through hole passing through a housing constituting the exterior of a battery used in a vehicle to shield the through hole while making electrical connection through the connector.

1 to 3, the connector 20 is positioned in the block body 10 forming the skeleton of the connector block. Although the overall shape of the block body 10 is a rectangular plate shape, it is not necessarily the case, and it has a shape corresponding to the shape of the area to be shielded. The block body 10 is made of a synthetic resin material. The reason that the block body 10 is made of a synthetic resin material is because it is relatively light compared to a metal material.

One side of the block body 10 has a connector through-hole 12 so that a connector 20 to be described below is installed. A ground wall 14 is formed around the edge of the connector through hole 12 . The ground wall 14 protrudes from one surface of the block body 10 among the edges of the connector through hole 12 . In the illustrated embodiment, the configuration of the ground wall 14 can be seen well in FIG. 3 . The connector through hole 12 is made to be approximately oval in cross section. The shape of the connector through hole 12 should be such that a corresponding portion of the connector 20 can be located.

A dividing slit 16 is provided at one side of the ground wall 14 . The division slit 16 is formed from the upper end of the ground wall 14 to the surface of the block body 10 . The division slit 16 allows the first and second slit insertion portions 35 and 35' of the grounding hole 30 to be described below to be positioned. The division slit 16 serves to guide the insertion direction of the grounding tool 30 .

One side of the ground wall 14 has a fastening through-hole 18 . A fastening bolt 40 ′, which will be described below, is fastened to the fastening through hole 18 so that the ring terminal 40 is fastened to the grounding hole 30 and at the same time the grounding hole 30 is fixed to the grounding wall 14 . .

A connector 20 is installed in the connector through hole 12 . The connector 20 is separately made in this embodiment and installed on the block body 10 . However, the connector 20 may be made integrally with the block body 10 . There is a mounting flange 22 surrounding the rear end of the connector 20 . The mounting flange 22 serves to fasten the connector 20 to the block body 10 . If the connector 20 is made integrally with the block body 10, the mounting flange 22 is not required.

At the rear end of the connector 20 is a through-hole insertion portion 24 . The through-hole insertion portion 24 is a portion positioned in the connector through-hole 12 . Accordingly, the shape of the through-hole insertion portion 24 corresponds to the shape of the connector through-hole 12 . When waterproofing is required, a seal (not shown) is positioned around the outer surface of the through-hole insertion part 24 .

There is a shield shell 25 inside the connector 20 . The shield shell 25 is used for grounding when combined with a mating connector. The shield shell 25 is also electrically connected to a grounding port 30 to be described below to perform grounding. To this end, the shield shell 25 has a contact piece 26 . A plurality of the contact pieces 26 are exposed to the outside around the outer surface of the through-hole inserting part 24 . The configuration of the contact piece 26 may be elastically deformed and closely adhered to the grounding port 30 as shown in FIG. 7 . That is, the contact piece 26 is bent so that the extension direction is changed to the opposite direction through two times. It is in close contact with the inner surface of the grounding port 30 in an elastically deformed state by such a structure.

A plurality of wires 28 extend to the rear of the connector 20 to perform electrical connection between the mating connector and the inside of the vehicle block. The wire 28 is not only for high voltage connection but also for signal connection.

The grounding port 30 is installed on the grounding wall 14 and is in electrical contact with the contact piece 26 of the shield shell 25 of the connector 20 to serve as a grounding path. The grounding port 30 is made of a metal material having good conductivity. The grounding body 32 forms the skeleton of the grounding sphere 30 . The grounding sphere body 32 is made by rolling a thin metal plate. The grounding sphere body 32 has a shape corresponding to the shape of the inner surface of the grounding wall 14 . Hanging pieces 33 surrounding one edge of the grounding body 32 are spaced apart from each other. The hook piece 33 is made to extend orthogonally to one edge of the grounding sphere body 32 and to be bent by 90 degrees once again. The ground wall 14 is positioned between the hook piece 33 and the outer surface of the grounding sphere body 32 . Five such hook pieces 33 are made in this embodiment.

The grounding body (32) has a slit corresponding portion (34). The slit-corresponding portion 34 is a portion in which both ends of the metal plate constituting the grounding sphere body 32 are adjacent to each other. The slit-corresponding portion 34 is positioned at a position corresponding to the dividing slit 16 of the ground wall 14 . The slit corresponding portion 34 is also a kind of slit.

A first slit inserting part 35 and a second slit inserting part 35' are provided at both ends of the grounding sphere body 32, which becomes the slit-corresponding part 34, to correspond to each other. The first slit insert 35 and the second slit insert 35 ′ are inserted into the dividing slit 16 of the ground wall 14 . Accordingly, the first and second slit insertion portions 35 and 35 ′ may serve to guide the direction in which the grounding hole 30 is installed on the grounding wall 14 .

The grounding body (32) also has a coupling piece (36). The coupling piece 36 is bent so that one side of the grounding sphere body 32 is extended to face one side of the grounding sphere body 32 at a predetermined interval. The distance between the grounding body 32 and the coupling piece 36 is equal to the thickness of the grounding wall 14 . In this embodiment, the coupling piece 36 is bent and extended in the second slit insertion part 35'. However, the coupling piece 36 may be formed by bending at one edge of the grounding sphere body 32 like the hook piece 33 .

A first coupling hole 37 is formed in the coupling piece 36 . A threaded portion is formed in the first coupling hole 37 over a predetermined section by burring and tapping. A fastening bolt 40 ′ to be described below is fastened to the first coupling hole 37 .

A second coupling hole 37 ′ is formed at a position of the grounding sphere body 32 corresponding to the first coupling hole 37 of the coupling piece 36 . A threaded portion is also formed in the second coupling hole 37'. A fastening bolt 40' is fastened to the second coupling hole 37' and the first coupling hole 37 at the same time. At this time, the ground wall 14 is positioned between the first coupling hole 37 and the second coupling hole 37 ′, and the ground wall 14 at this position has a fastening through hole 18 . Therefore, the center of the first coupling hole 37, the fastening through-hole 18, and the second coupling hole 37' coincides with each other, and the fastening bolt 40' is positioned therein and coupled to the screw part.

As can be seen in FIGS. 2 and 5 , the ring terminal 40 is coupled to the coupling piece 36 . A connection wire (not shown) for grounding is connected to the ring terminal 40. The ring terminal 40 is fastened to the coupling piece 36 by a fastening bolt 40'.

Hereinafter, a grounding device for a connector according to the present invention having the above-described configuration and a grounding tool used therefor are described in detail.

First, the grounding port 30 is made of a metal material with good conductivity, and the block body 10 itself is made of a synthetic resin material, replacing the conventional block body 10 itself made of a conductive metal material. perform the role of conduction. The grounding hole 30 is installed in close contact with the outer surface of the grounding hole body 32 to the inner surface of the grounding wall 14 .

To this end, the grounding sphere body 32 is inserted into the connector through hole 12 along the inner surface of the grounding wall 14 . At this time, the first and second slit insertion portions 35 and 35 ′ are inserted into the dividing slit 16 of the ground wall 14 . At the same time, the hook piece 33 is hung on the front end of the ground wall 14 and is in close contact with the outer surface of the ground wall 14 to prevent the grounding tool 30 from arbitrarily flowing within the ground wall 14 .

On the other hand, the coupling piece 36 is at a position where the fastening through hole 18 of the ground wall 14 and the first coupling hole 37 coincide. That is, the centers of the first coupling hole 37 of the coupling piece 36 , the coupling through hole 18 of the ground wall 14 , and the second coupling hole 37 ′ of the grounding body 32 are aligned with each other. . In particular, a portion of the grounding wall 14 of the fastening through-hole 18 is positioned between the coupling piece 36 and the corresponding grounding sphere body 32 .

In this state, the ring terminal 40 is fastened to the coupling piece 36 by the fastening bolt 40'. The fastening bolt 40 ′ is simultaneously fastened to the ring terminal 40 , the coupling piece 36 , the grounding wall 14 , and the grounding sphere body 32 . In particular, since the fastening bolt 40 ′ is fastened to the screw portion of the first coupling hole 37 and the second coupling hole 37 ′ with the ground wall 14 interposed therebetween, the fastening force is very strong and the ring terminal 40 . It can be made very firmly in the fixing of the ground and the fixing of the grounding port 30 . In the case of the grounding port 30, although it is made of a thin metal plate, the fastening with the fastening bolt 40' is very strong.

On the other hand, in the connector 20, the through-hole inserting part 24 is inserted into the connector through-hole 12, and the mounting flange 22 is fastened to the block body 10 and installed in the block body 10. At this time, the contact piece 26 of the shield shell 25 in the connector 20 is in contact with the inner surface of the grounding hole 30 in an elastically deformed state so that the shield shell 25 and the grounding hole 30 are electrically connected to each other. to be connected to

In this state, when a mating connector is inserted and coupled to the connector 20 , an electrical connection and a signal connection are made through the wire 28 . In addition, it is well illustrated in FIG. 7 that the grounding is made through the mating connector and the connector 20 and the block body 10 .

That is, when the mating connector is coupled to the connector 20 , grounding is made through the shield shell 25 . The shield shell 25 also has the contact piece 26 in contact with the inner surface of the grounding hole 30 in an elastically deformed state, so that the shield shell 25 and the grounding hole 30 are grounded with each other. .

And, since the ring terminal 40 is coupled to the coupling piece 36 of the grounding hole 30, the grounding hole 30 and the ring terminal 40 are connected to each other to ground, and finally a mating connector; The connector 20 is grounded through the shield shell 25 , the grounding hole 30 of the block body 10 , and the ring terminal 40 .

In the above, even though it has been described that all components constituting the embodiment of the present invention operate as one combined or combined, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the components may operate by selectively combining one or more. In addition, terms such as "comprises", "comprises" or "have" described above mean that the corresponding component may be inherent, unless otherwise stated, excluding other components. Rather, it should be construed as being able to further include other components. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Commonly used terms such as terms defined in the dictionary should be interpreted as being consistent with the contextual meaning of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10: block body 12: connector through hole
14: ground wall 16: split slit
18: fastening through hole 20: connector
22: mounting flange 24: through hole insert
25: shield shell 26: contact piece
28: wire 30: ground port
32: ground sphere body 33: hook piece
34: slit corresponding portion 35: first slit insertion portion
35': second slit insertion part 36: coupling piece
37: first coupling hole 37 ': second coupling hole
40: ring terminal 40': fastening bolt

Claims (11)

A block body made of a synthetic resin material, a connector through hole is formed on one side, and a ground wall is formed to protrude to one surface around the connector through hole;
a grounding sphere made of a conductive material in which a grounding sphere body is located on the inner surface of the grounding wall and a coupling piece on one side is installed on the outer surface of the grounding wall;
a connector positioned in the connector through hole and provided with a shield shell electrically connected to the grounding hole therein;
It is fastened to the coupling piece of the grounding port and includes a terminal for performing grounding,
The grounding sphere includes a grounding sphere body made of a conductive material, a plurality of hanging pieces formed around the edge of one end of the grounding sphere body to be hung on the outer surface of the grounding wall, and a grounding sphere facing the outer surface of one side of the grounding sphere body A grounding device for a connector block including a coupling piece made integrally with the body.
The grounding device for a connector block according to claim 1, wherein a dividing slit is formed in the grounding wall to extend from the front end of the grounding wall to the surface of the block body.
The grounding device for a connector block according to claim 2, wherein a fastening hole for simultaneous fastening of the grounding port and the terminal is formed in the grounding wall.
The grounding device for a connector block according to claim 3, wherein the fastening bolt is fastened through the first fastening hole of the coupling piece corresponding to the fastening through hole and the second fastening hole formed in the grounding sphere body of the grounding hole at the same time.
The grounding device for a connector block according to claim 4, wherein a coupling piece having the first fastening hole is positioned on an outer surface of the ground wall in which the fastening through hole is formed, and a grounding sphere body having the second fastening hole is positioned on an inner surface of the ground wall.
delete According to any one of claims 1 to 5, wherein the grounding sphere body is made of a metal plate in a cylindrical shape, a slit-corresponding portion is formed at a position corresponding to the divided slit formed in the grounding wall, and facing the slit-corresponding portion A grounding device for a connector block in which a first slit insertion portion and a second slit insertion portion positioned in the divided slit are formed at both ends of the grounding sphere body.
A grounding sphere body made of a conductive material and made in a cylindrical shape to form a slit corresponding portion with both ends of the thin metal plate facing each other;
A hook piece formed by bending a plurality of pieces at a predetermined interval around the edge of one side of the grounding sphere body and facing the outer surface and one side of the folding sphere body;
a first slit insertion portion and a second slit insertion portion provided at both ends of the grounding sphere body in the slit-corresponding portion;
A grounding device including a coupling piece extending from the grounding body body to face the outer surface of one side of the grounding device body.
The grounding tool according to claim 8, wherein a first coupling hole having a threaded portion is formed on the inner surface of the coupling piece, and a second coupling hole having a screw portion formed on the inner surface of the grounding sphere body is formed to coincide with the center of the first coupling hole.
The grounding tool according to claim 9, wherein the coupling piece extends from the second slit insertion part and is bent.
The grounding tool according to claim 10, wherein the coupling piece is formed by extending and bending the grounding piece body.

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