KR102648083B1 - Wire crimping device for high voltage connector - Google Patents

Abstract

The present invention is a high-voltage connector wire for crimping a wire on which a shield wire 13 is installed between the internal insulating layer 12 surrounding the center line 11 and the external insulating layer 14 forming the outside of the wire 10. In the pressing device, a support ring (20) installed to surround the outer surface of the tip of the outer insulating layer (14) from which a predetermined section is removed so that the inner insulating layer (12) is exposed at the tip of the wire (10), It includes a crimp ring 30 installed to surround the outer surface of the support ring 20 with the shield wire 13 seated on the outer surface of the support ring 20, and one side of the crimp ring 30 has a cantilever shape. A plurality of compression elastic pieces 33 are formed along the edge of the clamp ring 30 to compress the internal insulating layer 12. According to the present invention, a plurality of elastic pieces are formed with a diameter narrowing at an angle toward the tip, thereby increasing the compression force, and compression is possible regardless of the thickness of the wire, which has the effect of making parts common.

Description

Wire crimp device for high voltage connector {WIRE CRIMPING DEVICE FOR HIGH VOLTAGE CONNECTOR}

The present invention relates to a wire crimping device for a high-voltage connector, and more specifically, to a wire crimping device for a high-voltage connector provided with a clamping ring that relatively strongly compresses the wire.

The connector has a terminal installed inside the housing, and a wire is connected to the terminal to extend to the outside of the housing. Such a connector is combined with a mating connector to perform electrical connection by electrically connecting each terminal.

Connectors are used at voltages of various strengths. Recently, high voltages are used to drive motors in electric vehicles and hybrid vehicles, so high-voltage connectors are widely used.

The wire used in such a high-voltage connector has a shield wire for grounding between an internal insulating layer surrounding the core wire and an external insulating layer forming the exterior of the wire. When a terminal and a wire are connected, such a shield wire must not be in electrical contact with the wire, but must be electrically connected to the shield shell inside the connector.

For this purpose, the shield wire is compressed at its tip between the support ring and the clamp ring at the tip of the wire adjacent to the terminal.

However, in the high-voltage connector according to the prior art, the tip of the shield wire must be located between the support ring and the clamp ring so that it does not extend toward the terminal. The clamp wire is clamped with the tip of the shield wire placed on the outer surface of the support ring. There is a problem in that the tip of the shield wire comes out between the support ring and the clamp ring during the process of inserting the ring into the outer surface of the support ring.

In addition, even if the clamp ring is tightly fixed to the outer surface of the wire, the compression force is insufficient to properly adhere the wire, and if the wire is pulled in a certain direction, the clamp ring is pushed away from the outer surface of the wire, exposing the shield wire, or is pushed together with the clamp ring and comes into contact. There is a problem with this becoming unstable.

In addition, even if the diameter of the wire is the same, the thickness of the center line may be different, so the thickness of the internal insulating layer may be different. In this case, there is a problem of having to prepare a crimping ring with a different diameter depending on the thickness of the center line.

Republic of Korea Patent Publication No. 10-2013-0043018

The purpose of the present invention is to solve the problems of the prior art as described above, and to provide a wire connecting device used in a high voltage connector in which a crimp ring compresses the wire relatively more strongly.

Another object of the present invention is to prevent the tip of the shield wire from being exposed between the support ring and the clamping ring.

Another purpose of the present invention is to enable crimping with a single crimp ring regardless of the thickness of the center line used in the wire.

The present invention relates to a wire crimping device for a high-voltage connector for crimping a wire on which a shield wire is installed between an internal insulating layer surrounding a center line and an external insulating layer forming the outside of the wire, wherein the internal insulating layer is formed at the tip of the wire. It includes a support ring installed to surround the outer surface of the tip of the external insulating layer from which a predetermined section has been removed so as to be exposed, and a clamp ring installed to surround the outer surface of the support ring with a shield wire seated on the outer surface of the support ring, On one side of the clamp ring, a plurality of cantilever-shaped elastic pieces are formed along the edge of the clamp ring and are pressed against the outer surface of the internal insulating layer.

The clamp ring is formed in the longitudinal direction of the wire and includes a cylindrical body that is inserted into the outer surface of the support ring and compresses the shield wire, and one end of the body is bent in the inner direction of the body, and extends in the longitudinal direction of the wire. Accordingly, it includes a shielding portion formed by bending once more, and a plurality of cantilever-shaped compressed elastic pieces formed around the tip of the shielding portion and inclined to be adjacent to each other toward the tip.

The diameter of the ends of the plurality of compressed elastic pieces is smaller than the diameter of the internal insulating layer of the wire.

The plurality of compressed elastic pieces further include a hook portion bent inward so that its tip faces the body.

The shield portion is bent toward the inside of the body to have a smaller diameter and pulls the shield wire toward the support ring.

Inclined surfaces are formed toward the inner surface at both end edges of the support ring.

The following effects can be obtained from the wire crimping device for high voltage connectors according to the present invention.

In the present invention, the shield wire seated on the outer surface of the support ring is inserted so that it is completely surrounded by the shielding portion of the clamp ring, so that the tip of the shield wire is firmly fixed so that it cannot escape between the support ring and the clamp ring.

In the present invention, a plurality of compressed elastic pieces with a diameter narrowing toward the tip are formed to increase the compressing force, and compression can be performed in various ways according to the thickness of the center line, which has the effect of enabling common use of crimp ring parts.

In the present invention, a hook is formed at the tip of the compressed elastic piece, so that the clamp ring does not come out even if the wire is pushed in one direction, so the contact is maintained stably.

1 is a perspective view showing the configuration of a preferred embodiment of a wire crimping device for a high-voltage connector according to the present invention.
Figure 2 is a cross-sectional perspective view showing the main configuration of an embodiment of the present invention.
Figure 3 is an enlarged cross-sectional perspective view showing the main configuration of an embodiment of the present invention.
Figure 4 is a perspective view showing the configuration of a support ring constituting an embodiment of the present invention.
Figure 5 is a cross-sectional view showing the configuration of a support ring constituting an embodiment of the present invention.
Figure 6 is a perspective view showing the configuration of a clamping ring constituting an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail through illustrative drawings. When adding reference numerals to components in each drawing, it should be noted that identical components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, when describing embodiments of the present invention, if detailed descriptions of related known configurations or functions are judged to impede understanding of the embodiments of the present invention, the detailed descriptions will be omitted.

Additionally, in describing the components of embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, or order of the component is not limited by the term. When a component is described as being "connected," "coupled," or "connected" to another component, that component may be directly connected or connected to that other component, but there is no need for another component between each component. It should be understood that may be “connected,” “combined,” or “connected.”

Referring to the drawings, a preferred embodiment of the wire crimping device for a high voltage connector of the present invention will be described.

Referring to FIG. 2, the wire 10 includes a center line 11 made of a conductor, an internal insulating layer 12 surrounding the center line 11, and a shield line 13 surrounding the outside of the internal insulating layer 12. and an external insulating layer 14 formed outside the shield line 13. Here, the shield wire 13 made of a conductive material blocks electromagnetic waves generated internally and prevents electromagnetic waves from affecting surrounding electronic devices.

The center line 11 becomes a passage through which current flows directly, the inner insulating layer 12 is located between the center line 11 and the shield line 13 to form an insulating layer, and the outer insulating layer 14 is An insulating layer is formed between the wire 10 and the outside. Therefore, the center line 11 is made of a material with good electrical conductivity, and the inner insulating layer 12 and the outer insulating layer 14 are made of a material with good insulating properties. In particular, the shield wire 13 is provided to surround the outer surface of the internal insulating layer 12. The shield wire 13 is made of a conductive material wire in the form of a mesh and serves as a grounding function.

At the end of the wire 10, a center line 11, an internal insulating layer 12, a shield line 13, and an external insulating layer 14 are formed to be sequentially exposed, and a support ring 20, which will be described later, is formed on the outside. It is inserted into the wire 10 to surround the insulating layer 14. The shield wire 13 of the wire 10 is bent to cover the outer surface of the support ring 20, and the clamp ring 30, which will be described later, is seated on it, so that the shield wire 13 is the support ring 20. and the clamp ring (30).

The support ring 20 is formed in a cylindrical shape and extends in the longitudinal direction of the wire 10. The support ring 20 is inserted into the external insulating layer 14 of the wire 10 and is located near the cross section where the internal insulating layer 12 begins to be exposed. The shield wire 13 exposed from the wire 10 has its tip turned over and is seated on the outer surface of the support ring 20.

Referring to FIG. 4, inclined surfaces 21 are formed on the inner surfaces of the entrances on both sides of the support ring 20. The inclined surface 21 allows the inner diameters of the entrances on both sides of the support ring 20 to become wider toward the outside so that the wire 10 can smoothly enter the inside of the support ring 20. The inclined surfaces 21 are formed on both edges of the support ring 20 and can be inserted into the wire 10 without direction.

Referring to FIG. 6, the clamp ring 30 is formed by a cylindrical body 31 extending in the longitudinal direction of the wire 10. The body 31 is inserted into the outer surface of the support ring 20 and compresses the shield wire 13 seated on the outer surface of the support ring 20. A shielding portion 32 is formed on the clamping ring 30 so that one end is bent toward the inside of the body 31 to reduce the diameter of the hole formed in the body 31. Specifically, the shielding portion 32 extends from one end of the body 31, is bent toward the inside of the body 31, and is further bent and extended in the longitudinal direction of the wire 10.

The shielding portion 32 shields the shield wire 13 from being exposed when the shield wire is turned over and bent. In addition, in the process of inserting the clamp ring 30 into the support ring 20, the shield wire 13, which is seated on the outer surface of the support ring 20, is securely maintained in an inverted state. Compress the bent part of the. The shielding portion 32 compresses the bent portion of the shield wire 13 and at the same time spans the ends of the support ring 20 and the external insulating layer 14 so that the crimp ring 30 moves toward the support ring 20. It also acts as a stopper to prevent further entry.

A plurality of compressed elastic pieces 33 are formed at regular intervals at the tip of the shielding portion 32. More specifically, there are a plurality of compressed elastic pieces 33 surrounding the tip of the shielding portion 32. The compressed elastic pieces 33 each have a cantilever shape and are inclined toward an imaginary extension of the longitudinal center line of the body 31 toward the tip. Therefore, the inner diameter formed by the compressed elastic pieces 33 becomes smaller as it moves toward the tip of the compressed elastic pieces 33. The diameter of the ends of the compressed elastic pieces 33 is preferably smaller than the diameter of the internal insulating layer 12 of the wire 10. The compressed elastic piece 33 is compressed on the outer surface of the internal insulating layer 12 of the wire 10. The compressed elastic piece 33 does not entirely contact the outer surface of the internal insulating layer 12 of the wire 10, and the tip of the compressed elastic piece 33 is located along the circumference of the wire 10 and is in contact with the inner insulating layer 12. It is in close contact with the outer surface of the layer 12. Since the compressed elastic piece 33 has a certain degree of elasticity, it can be used for different types of wires 10 with different thicknesses of the internal insulating layer 12.

A hook-shaped hook (not shown) may be further formed at the tip of the compressed elastic piece 33. The hook part hangs on the internal insulating layer 12 to prevent the clamping ring 30 from moving in a certain direction along the longitudinal direction of the wire 10. Depending on the direction in which the hook portion is formed, the direction in which the clamp ring 30 cannot move may be determined.

Next, the use of the wire crimping device for a high-voltage connector according to the present invention having the same configuration as described above will be described in detail with reference to the drawings.

In order to perform crimping using the wire crimping device of the present invention, a center line 11 is exposed at one end of the wire 10 to extend further than the internal insulating layer 12, and the outer surface of the internal insulating layer 12 The external insulating layer 14 is removed to expose the shield line 13.

Meanwhile, in a high-voltage connector, a shield shell (not shown) for grounding is installed inside the connector, and the shield shell and the shield wire 13 of the wire 10 are electrically connected. Specifically, electrical contact is made between the shield shell and the shield wire 13 by contacting the shield shell with the body 31 or the compressed elastic piece 33 of the clamp ring 30.

Before connecting the terminal (not shown) with the wire 10, part of the external insulating layer 14 at the tip of the wire 10 is removed to expose the shield wire 13, and the external insulating layer 14 ) Install the support ring (20) at the tip of the. The exposed shield wire 13 is turned over and seated on the outer surface of the support ring 20. The seated shield wire 13 is cut off leaving a length equivalent to the support ring 20, and the shield wire 13 is turned over and clamped towards the exposed internal insulating layer 12 of the wire 10. Install (30).

The body 31 of the clamp ring 30 is seated on the outer surface of the support ring 20 so as to cover the shield wire 13, and the compressed elastic piece 33 is an internal insulating layer of the wire 10 ( 12) is compressed. At this time, the shielding portion 32 of the clamping ring 30 shields the bent portion of the shield wire 13, and the clamping ring 30 is attached to the tip of the external insulating layer 14 and the support ring 20. It acts as a stopper to prevent further entry.

Specifically, the body 31 of the clamping ring 30 is seated on the outer surface of the support ring 20 with the shield wire 13 placed thereon, and the shielding portion 32 is attached to the shield wire 13. The bent portion and the tip of the external insulating layer 14 are shielded. In addition, the crimp ring 30 is installed so that the compressed elastic piece 33 is compressed to the internal insulating layer 12 of the wire 10. At this time, in the process of installing the clamp ring 30 to the support ring 20, the shielding portion 32 is formed to have a smaller diameter, so it serves to pull the shield wire 13 toward the support ring 20. do.

The compressed elastic piece 33 of the clamp ring 30 is formed so that its diameter becomes narrower as it goes along the length of the wire 10. Therefore, the clamp ring 30 can be easily moved in the direction in which it is installed on the support ring 20, but when the clamp ring 30 is moved in the direction away from the support ring 20, the compression elasticity The tip of the piece 33 is caught in the inner insulating layer 12 and cannot be moved. When installation of the clamp ring 30 is completed, it has a smaller diameter than the diameter of the internal insulating layer 12, so it is fixed by pressing the outer surface of the internal insulating layer 12.

Additionally, an insulating ring (not shown) is additionally installed at a position corresponding to the tip of the clamp ring 30 to secure an insulating distance between the shield wire 13 and the terminal installed at the tip of the wire 10. You can.

When the support ring 20 and the clamping ring 30 are completely installed on the wire 10, a portion of the tip of the internal insulating layer 12 is removed to expose the center line 11. The terminal is coupled to the center line 11 and electrically connected.

In the above, even though all the components constituting the embodiment according to the present invention have been described as being combined or operated in combination, the present invention is not necessarily limited to this embodiment. That is, as long as it is within the scope of the purpose of the present invention, all of the components may be operated by selectively combining one or more of them. In addition, terms such as “include,” “comprise,” or “have” described above mean that the corresponding component may be present, unless specifically stated to the contrary, and thus do not exclude other components. Rather, it should be interpreted as being able to include other components. All terms, including technical or scientific terms, unless otherwise defined, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains. Commonly used terms, such as terms defined in a dictionary, should be interpreted as consistent with the contextual meaning of the related technology, and should not be interpreted in an idealized or overly formal sense unless explicitly defined in the present invention.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications and variations will be possible to those skilled in the art without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but rather to explain it, and the scope of the technical idea of the present invention is not limited by these examples. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

10: wire 11: center line
12: internal insulating layer 13: shield wire
14: external insulating layer 20: support ring
21: slope 30: clamping ring
31: body 32: shielding part
33: Compression elastic piece

Claims (6)

In the wire crimping device for a high-voltage connector for crimping a wire on which a shield wire is installed between an internal insulating layer surrounding the center line and an external insulating layer forming the outside of the wire,
a support ring installed to surround the outer surface of the tip of the outer insulating layer from which a predetermined section is removed to expose the inner insulating layer at the tip of the wire;
It includes a clamp ring installed to surround the outer surface of the support ring in a state where the shield wire is seated on the outer surface of the support ring,
On one side of the clamp ring, a plurality of cantilever-shaped compression elastic pieces are formed along the edge of the clamp ring and are pressed to the outer surface of the internal insulating layer,
The clamping ring is
a cylindrical body formed in the longitudinal direction of the wire and inserted into the outer surface of the support ring to compress the shield wire;
a shield formed by bending one end of the body toward the inside of the body and bending it again along the longitudinal direction of the wire;
A plurality of cantilever-shaped compressed elastic pieces are formed surrounding the tip of the shielding portion and are inclined to be adjacent to each other toward the tip,
The shielding part is disposed in front of a portion where the shield wire is turned over and bent to shield the shield wire,
A wire crimping device for a high voltage connector, characterized in that the shielding part is hung on the tip of the support ring to support the clamp ring.
The wire crimping device for a high voltage connector according to claim 1, wherein the diameter of the ends of the plurality of elastic crimping pieces is smaller than the diameter of the internal insulating layer of the wire.
The wire crimping device for a high-voltage connector according to claim 2, wherein the plurality of elastic crimping pieces further include a hook portion bent inward so that its tip faces the body.
The wire crimping device for a high-voltage connector according to claim 3, wherein the shielding portion is bent toward the inside of the body to have a smaller diameter and pulls the shield wire toward the support ring.
The wire crimping device for a high-voltage connector according to any one of claims 1 to 4, wherein inclined surfaces are formed on both end edges of the support ring toward the inner surface. delete

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