KR102601988B1 - Wire crimping device for high voltage connector - Google Patents

Abstract

The present invention relates to a cable coupling device for a high-voltage connector, which consists of a support ring and a clamping ring and is fastened to the distal end of a cable from which the external insulating layer has been removed. More specifically, to the distal end of the cable from which the external insulating layer has been removed in a predetermined section. a support ring fastened to surround the outer surface of the tip of the external insulating layer; And a clamp ring that is fastened to surround the outer surface of the support ring in a state in which the shield wire is seated on the outer surface of the support ring. The support ring and the clamp ring are fastened by a male and female screw combination, and the clamp ring moves the support ring toward the center of the cable. It relates to a cable coupling device for a high voltage connector, characterized in that it is pressurized.

Description

Cable coupling device for high voltage connector {WIRE CRIMPING DEVICE FOR HIGH VOLTAGE CONNECTOR}

The present invention relates to a cable coupling device for a high-voltage connector, and more particularly, to a cable coupling device for a high-voltage connector that is composed of a support ring and a clamping ring and is fastened to the distal end of a cable from which the external insulating layer has been removed.

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

For this purpose, the shield wire is located at the tip of the cable adjacent to the terminal by pressing the tip between the support ring and the clamping ring. The structure and work process are described in more detail with reference to FIG. 1 as follows. same.

First, as shown in (a) of FIG. 1, in order to fasten the support ring 20 and the clamping ring 30 as described above, a certain length of the external insulating layer 14 from the distal end of the cable 10 is removed. The shield wire 13 is exposed on the cable from which the external insulation layer has been removed, and in this state, the rubber ring 40, etc. is coupled to the distal end of the cable 10 as shown in (b) of Figure 1. As shown in c), the support ring 20 is fastened to the external insulating layer 14. Afterwards, as conceptually shown in (d) of FIG. 1, the exposed shield wires (13) are spread radially one by one, and with the shield wires (13) spread radially, they are attached to the support ring (20) as shown in (d) of Figure 1. Fasten the clamp ring (30) using an interference fit method. In the process of fastening the clamp ring 30, the radially unfolded shield line 13 is bent in the direction in which the clamp ring 30 is fastened, and is formed between the outer circumferential surface of the support ring 20 and the inner circumferential surface of the crimp ring 30. It is located in Although not shown, the clamp ring 30 is compressed using a separate compression equipment.

Since such fastening work is performed manually one by one, in the conventional fastening method, the overall work efficiency is reduced due to a decrease in work speed due to the interference of the clamp ring 30, and it is difficult to visually check whether the assembly has been completed. In addition, a pressing facility must be provided for the pressing process, and a problem has been raised that the shield wire 13 is damaged during the pressing process and the pressing process by interference fitting, thereby reducing the shielding power.

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

The technical problem to be solved by the present invention is to provide a cable coupling device for a high voltage connector that improves workability by screwing when fastening and fixing a support ring and a clamp ring.

Another technical problem to be solved by the present invention is to provide a cable coupling device for a high-voltage connector in which the crimp ring compresses the cable relatively more strongly when fastening the support ring and the crimp ring.

Another technical problem to be solved by the present invention is to provide a cable coupling device for a high voltage connector that can prevent shield wires from being damaged during the compression process.

According to the features of the present invention for achieving the above technical problem, the cable coupling device for a high voltage connector of the present invention is a high voltage cable coupling device consisting of an internal insulating layer surrounding a center line, a shield wire surrounding the internal insulating layer, and an external insulating layer surrounding the shield wire. A cable coupling device for a high-voltage connector coupled to a cable, comprising: a support ring fastened to a front end of the cable from which a predetermined section of the external insulating layer has been removed so as to surround an outer surface of the front end of the external insulating layer; and a clamp ring that is fastened to the outer surface of the support ring while surrounding the shield wire so that the shield wire is positioned between the outer surface of the support ring and the inner surface of the support ring. The clamp ring presses the support ring toward the center of the cable, and the support ring includes a support body coupled to an outer circumferential surface of the distal end of the cable; A male thread formed on the outer circumference of the support body; And a support part formed at the rear end of the support body to limit the fastening insertion length of the clamp ring coupled from the front end to the rear end of the support body, wherein the support part has a predetermined length of the rear end of the support body. It is formed by bending in a vertical direction on the outer side of the body, and a plurality of support grooves are exposed to the outside at regular intervals at the bent portion, and the clamp ring includes: a pressing body coupled to the outer peripheral surface of the support ring; A female thread formed on the inner circumferential surface of the pressing body; and a shielding portion that is bent inward from the tip of the pressing body and extends a predetermined length and has an inner diameter smaller than the inner diameter of the pressing body. A plurality of support protrusions are provided at the rear end of the pressing body and are coupled to the support groove. It can be formed by being exposed to the outside.

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In addition, the male thread portion is characterized in that it is formed at regular intervals in the circumferential direction on the outer circumference of the support body.

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In addition, the female thread portion is characterized in that it is formed at regular intervals in the circumferential direction on the inner circumferential surface of the pressing body.

In addition, when the clamp ring is completely fastened to the support ring, the front end surface of the support ring located inside the clamp ring and the inner curved surface of the clamp ring are spaced apart at a predetermined distance.

The cable coupling device for a high-voltage connector according to the present invention described above has the following effects.

First, since the support ring and the clamp ring are fastened by a male and female screw combination, and the clamp ring presses the support ring, the fastening work is easier than the conventional interference fitting method and work efficiency can be improved.

Additionally, since the compression process is omitted, damage to the shield wire due to compression can be prevented, thereby increasing shielding power.

In addition, in the past, the support ring and the clamp ring were compressed and fixed to the cable through a compression process using a separate compression facility. However, the present invention has a structure that is fixed by a male and female screw coupling method, so a separate compression facility is not required, so Work space utilization can be increased, which leads to cost savings.

In addition, in the present invention, when a clamp ring is fastened to a support ring, the fastening work is completed while the clamp ring is supported on the support part of the support ring, so it is easy to check whether the work is completed with the naked eye.

In addition, the work of forming the support can be easily performed by forming a support groove on the support part that is folded in the outward direction and forms a step, and when a support protrusion is formed on the clamp ring and fastened to the support groove, it is easier to check whether the work has been completed. Not only does it become easier, but it also prevents loosening due to vibration or impact, thereby improving the fastening strength.

In addition, when male threads (or female threads in the pressurizing body) are formed on the support body at regular intervals, the shield wire that rotates together in the fastening direction due to rotation (friction) force when fastening the support ring and the clamp ring is connected to the thread (or screw bone). ), it is possible to effectively prevent damage as the shield wires are placed in an overlapping state on the male and female threads.

In addition, the clamping force can be further improved by forming a shielding part on the clamp ring to support the clamp ring from moving in the opposite direction of fastening with a predetermined force.

In addition, when the connection between the support ring and the clamping ring is completed, the rear end surface of the support ring and the inner curved surface of the clamping ring are spaced at a certain distance, thereby preventing damage to the portion folded behind the shield line.

1 is a diagram conceptually showing the work process of a conventional cable coupling device for a high-voltage connector;
Figure 2 is an exploded perspective view showing an example of a cable coupling device for a high voltage connector according to the present invention;
Figure 3 is a perspective view of an example of the cable coupling device for a high-voltage connector in use according to the present invention;
Figure 4 is a cross-sectional view of the cable coupling device for a high-voltage connector in use according to an example of the present invention;
Figure 5 is an exploded perspective view showing another embodiment of a cable coupling device for a high voltage connector according to 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.”

The present invention is a high-voltage cable (10) consisting of an internal insulating layer (12) surrounding the center line (11), a shield wire (13) surrounding the internal insulating layer (12), and an external insulating layer (14) surrounding the shield wire (13). It relates to a cable coupling device for high voltage connectors.

As shown in the drawings, the cable coupling device for a high voltage connector according to the present invention consists of a support ring 100 and a clamping ring 200, and are fastened to each other by male and female screw coupling.

As explained in the prior art, the support ring 100 is fastened to the front end of the cable 10 from which the external insulating layer 14 has been removed at a predetermined section so as to surround the outer surface of the front end of the external insulating layer 14. To improve the fixation power of (100), a rubber ring (40), etc. can be combined first.

The support ring 100 includes a support body 110, a male thread portion 120, and a support portion 130.

The support body 110 has a cylindrical shape with a predetermined length. The inner diameter of the support body 110 corresponds to the outer diameter of the cable 10 to which the support body 110 is fastened, and the outer diameter of the support body 110 corresponds to the inner diameter of the crimp ring 200, which will be described later. Meanwhile, although the support body 110 is shown in the drawing as a cylindrical shape, the inner shape of the support body 110 may vary depending on the shape of the cable 10 to which the support body 110 is fastened.

The male thread portion 120 is formed on the outer circumference of the support body 110 in the longitudinal direction where the support body 110 is fastened.

The support portion 130 is formed at the rear end (left end with respect to FIG. 4) of the support body 110 and is a clamping ring 200 that is coupled from the front end (right end with respect to FIG. 4) to the rear end of the support body 110. Limit the fastening insertion length. The support portion 130 is formed by bending a certain length of the rear end of the support body 110 in a vertical direction to the outside of the support body 110, and a plurality of support grooves 131 are formed at regular intervals in the bent portion. Bending work is easy due to the structure of the support groove 131, and a support protrusion 211, which will be described later, is fastened to the support groove 131.

The clamp ring 200 is fastened with a shield wire 13 surrounding the outer surface of the support ring 100 so that the shield wire 13 is positioned between the outer surface of the support ring 100 and its inner surface.

The clamping ring 200 includes a pressurizing body 210, a female thread portion 220, and a shielding portion 230.

The pressing body 210 is fastened to the outer peripheral surface of the support body 110 of the support ring 100, and the female thread 220 of the clamp ring 200 corresponding to the male thread 120 of the support ring 100 is It is formed on the inner circumferential surface of the pressing body 210 in the longitudinal direction in which the pressing body 210 is fastened.

As the support body 110 and the pressure body 210 are fastened by a male and female screw combination, the clamp ring 200 presses the support ring 100 toward the center of the cable 10. That is, since the shield wire 13 is located between the support ring 100 and the clamp ring 200, the support ring 100 and the clamp ring 200 are fastened, thereby creating a gap between the support ring 100 and the clamp ring 200. is filled with the shield line (13). At this time, the gap is widened by a predetermined distance by the shield wire 13, and as a result, the support ring 100 presses the peripheral surface of the cable 10 toward the center of the cable 10 to the extent that the gap is widened.

Meanwhile, for the above pressing structure, the outer diameter of the support body 110 and the inner diameter of the pressing body 210 may be adjusted. For example, pressing force can be added by configuring the outer diameter and inner diameter to gradually increase or decrease.

Support protrusions 211 are formed at the rear end (left end with respect to FIG. 4) of the pressing body 210 in correspondence with the number and location of the support grooves 131. The support protrusion 211 must be inserted into and coupled to the support groove 131 of the support ring 100 or separated from the support groove 131 depending on the direction of rotation of the pressing body 210, so the portion that contacts the support groove 131 It is desirable to form it to be rounded.

The shielding portion 230 of the clamping ring 200 is bent inward from the front end (right end with reference to FIG. 4) of the pressing body 210 and extends a predetermined length to the rear end, and has an inner diameter smaller than the inner diameter of the pressing body 210. It is formed to have an inner diameter. The bent portion that separates the pressurizing body 210 and the shielding portion 230 forms a bent surface 231 on the inside and outside, and the inner diameters of the pressurizing body 210 and the shielding portion 230 are based on the bending surface 231. It changes.

Meanwhile, referring to FIG. 4, when the support ring 100 and the clamp ring 200 are fastened as described above, the shield wire 13 is folded to the rear end and the outer surface of the support ring 100 and the clamp ring 200 are folded. It is located between the inner surface. At this time, the above-mentioned gap exists between the female thread part 220 and the male thread part 120, so the shield line 13 is located there, thereby reducing the pressure between the support ring 100 and the clamp compared to the conventional pressing operation. Damage to the shield wire 13 is prevented during the fastening process of the ring 200. In addition, the fastening operation is completed when the rear end surface (left end surface) of the clamp ring 200 contacts the support part 130 of the support ring 100. At this time, the support body 110 located inside the pressing body 210 The front end surface (right end surface) of and the bent surface 231 formed on the inside of the clamp ring 200 are spaced at a certain interval. The reason for configuring them to be spaced at a certain interval like this is to prevent the shield wire 13 from being damaged during the fastening process when configured to make contact.

Meanwhile, another embodiment of the present invention may refer to FIG. 5.

That is, the male threaded portion 120 of the support ring 100 may be formed at regular intervals rather than the entire circumference along the outer circumference of the support body 110. When the male thread portion 120 is formed at regular intervals, the outer circumferential surface of the support body 110 is exposed and an 'A' portion is formed, and a plurality of non-threaded portions, such as the 'A' portion, may be formed. .

In addition, although not shown, the female thread portion 220 of the clamping ring 200 may also be formed on the inner circumferential surface of the pressing body 210 at regular intervals rather than the entire circumferential direction. This may refer to the configuration of the male threaded portion 120 described above. However, when the male threaded portion 120 is formed at regular intervals, the corresponding female threaded portion 220 is formed as a whole, and conversely, the female threaded portion 220 is formed as a whole. When forming at regular intervals, it is preferable to form corresponding external thread parts 120 as a whole and couple them to each other.

As described above, an 'A' portion is formed on the outer circumferential surface of the support body 110 and the inner circumferential surface of the pressing body 210, so that when the support ring 100 and the clamp ring 200 are fastened, the support ring 100 ) and the clamp ring (200), the shield wire (13) rotates together in the fastening direction and is located in the 'A' portion, so the shield wire (13) is damaged during the fastening process of the support ring (100) and the clamp ring (200). can be prevented effectively.

The assembly state of the cable coupling device for a high voltage connector of the present invention described above will be described as follows.

First, the external insulating layer 14 at the tip of the cable 10 is removed at a predetermined interval to expose the shield wire 13. In this configured state, the support ring 100 is fastened to the distal end of the cable 10 from which the external insulating layer 14 has been removed. At this time, the rubber ring 40 can be coupled first before fastening the support ring 100, and the fixing force of the support ring 10 can be improved by the configuration of the rubber ring 40.

Since the exposed shield wire (13) is in a woven state, the shield wire (13) is disassembled one by one and then spread radially. In this way, with the shield wire 13 spread radially, the clamp ring 200 is screwed to the support ring 100 and fastened. This increases work efficiency because the fastening work is easier than the conventional interference fitting method.

As the clamp ring 200 is fastened, the radially unfolded shield line 13 is folded toward the rear of the support ring 100 and is located in the gap between the support ring 100 and the clamp ring 200, and the gap is the shield line 13. Since the support ring 100 presses the cable 10 toward the center of the cable 10 during the filling process, a separate compression process can be omitted.

As the rear end of the clamp ring 200 approaches the support portion 130 of the support ring 100, the support protrusion 211 is inserted into the support groove 131, and through this, it can be easily confirmed that the fastening operation has been completed.

Meanwhile, when separating the crimp ring 200 and the support ring 100, the work is performed in the reverse order of the above-mentioned order. During the separation operation, the support protrusion 211 seated in the support groove 131 must be pulled out of the support groove 131, which provides a rotational force of a certain amount or more to the clamp ring 200 so that the support portion 130 has a support protrusion ( The support protrusion 211 may come out of the support groove 131 by being pushed by 211 and elastically deformed.

In the above, even though all the components constituting the embodiment of 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 posted in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, 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: cable 11: center line
12: internal insulating layer 13: shield wire
14: external insulation layer
20: Support ring 30: Clamping ring
40: rubber ring
100: Support ring 110: Support body
120: male thread 130: support part
131: support groove
200: Clamping ring 210: Pressure body
211: support protrusion 220: female screw portion
230: shielding part 231: bent surface

Claims (8)

In the cable coupling device for a high-voltage connector coupled to a high-voltage cable consisting of an internal insulating layer surrounding a center line, a shield wire surrounding the internal insulating layer, and an external insulating layer surrounding the shield wire,
a support ring fastened to the distal end of the cable from which the external insulating layer has been removed at a predetermined section to surround an outer surface of the distal end of the external insulating layer; and
It includes a clamp ring that surrounds and fastens the shield wire to the outer surface of the support ring so that the shield wire is positioned between the outer surface of the support ring and its inner surface,
The support ring and the clamp ring are fastened with male and female screws, and the clamp ring presses the support ring toward the center of the cable,
The support ring is,
A support body coupled to the outer circumferential surface of the distal end of the cable;
A male thread formed on the outer circumference of the support body; and
It includes a support portion formed at the rear end of the support body and limiting the fastening insertion length of the clamp ring coupled from the front end to the rear end of the support body,
The support part,
A predetermined length of the rear end of the support body is formed by bending in a vertical direction to the outside of the support body, and a plurality of support grooves are formed at regular intervals in the bent portion to be exposed to the outside,
The clamping ring is
A pressing body coupled to the outer peripheral surface of the support ring;
A female thread formed on the inner circumferential surface of the pressing body; and
A shielding portion that is bent inward from the tip of the pressing body and extends a predetermined length and has an inner diameter smaller than that of the pressing body,
A cable coupling device for a high-voltage connector in which a plurality of support protrusions coupled to the support groove are exposed to the outside at the rear end of the pressing body.
delete According to paragraph 1,
The male thread portion is a cable coupling device for a high-voltage connector formed at regular intervals in the circumferential direction on the outer circumference of the support body.
delete delete delete According to claim 1 or 3,
The female thread portion is a cable coupling device for a high voltage connector formed at regular intervals in the circumferential direction on the inner circumferential surface of the pressing body.
According to claim 1 or 3,
A cable coupling device for a high-voltage connector in which a front end surface of the support ring located inside the crimp ring and an inner curved surface of the crimp ring are spaced apart at a predetermined distance when the clamp ring is completely fastened to the support ring.

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