KR20200034128A - Wire crimping device for high voltage connector - Google Patents

Abstract

The present invention relates to a wire crimping device for a high voltage connector, which is composed of a support ring and a crimp ring to be fastened to the front end of a cable of which the outer insulation layer is removed, and more specifically, comprises: the support ring fastened to the end of the cable of which an outer insulating layer is removed in a predetermined section, and surrounding the outer surface the front end of the outer insulating layer; and the crimp ring fastened to surround the outer surface of the support ring while a shield wire is seated on the outer surface of the support ring, wherein the support ring and the clamp ring are fastened by male and female coupling so that the clamp ring presses the support ring toward the center of the cable.

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 crimp ring and is fastened to a front end of a cable from which an outer insulating layer is removed.

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

Connectors are used at voltages of various intensities. In recent years, high voltages are used to drive motors in electric vehicles or hybrid vehicles, so high voltage connectors are frequently used.

The cable used in such a high voltage connector has a shield line for grounding between the inner insulating layer surrounding the center line and the outer insulating layer forming the appearance of the cable. When the terminal and the cable are connected, the shield wire should not be in electrical contact with the terminal, but must be electrically connected to the shield shell inside the connector.

To this end, the shield wire is positioned by pressing the tip portion between the support ring and the crimp spring at the tip of the cable located adjacent to the terminal. Referring to FIG. 1, the structure and working process thereof will be described in more detail as follows. same.

First, as shown in (a) of FIG. 1, the outer insulating layer 14 is removed from the front end of the cable 10 for a fixed length of the support ring 20 and the clamp spring 30 as described above. The shield wire 13 is exposed to the cable from which the outer insulating layer is removed, and in this state, the rubber ring 40 or the like is coupled to the front end portion of the cable 10 as shown in FIG. As shown in c), the support ring 20 is fastened to the outer insulating layer 14. Thereafter, although conceptually illustrated in FIG. 1 (d), the exposed shield wires 13 are radially unfolded one by one, and the shield wire 13 is radially unfolded to the support ring 20 as shown in FIG. 1 (d). The clamp spring 30 is fastened in a forced fit manner. In the course of the clamping spring 30 being fastened, the shield line 13 spread radially is bent between the outer peripheral surface of the support ring 20 and the inner peripheral surface of the clamping spring 30 while being bent in the direction in which the clamping spring 30 is fastened. Will be located at Although not shown, the crimping spring 30 is crimped using a separate crimping facility.

Since such a fastening operation is manually performed manually, in the conventional fastening method, the overall working efficiency decreases due to a decrease in the working speed due to the interference fit of the crimping spring 30, and it is difficult to visually check whether or not assembly is completed. In addition, it has to be provided with a crimping facility for the crimping process, and a problem has been raised that the shielding force is reduced due to damage to the shield wire 13 in the crimping process and the crimping process.

Republic of Korea Patent 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 increases the workability by screwing when fastening the support ring and the clamp ring.

Another technical problem to be solved by the present invention is to provide a cable coupling device for a high-voltage connector, which is configured such that the crimp spring compresses the cable relatively stronger when the support ring and the crimp spring are fastened.

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 the shield wire from being damaged during the crimping process.

According to a feature of the present invention for achieving the above technical problem, the cable coupling device for a high voltage connector according to the present invention comprises a high voltage composed of an inner insulating layer surrounding a center line, a shield wire surrounding the inner insulating layer, and an outer 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 surround an outer surface of the front end of the outer insulating layer at a front end portion of the cable from which the outer insulating layer is removed for a predetermined period; And a crimping spring which is fastened while surrounding the shield line on the outer surface of the support ring so that the shield line is positioned between the outer surface of the support ring and its inner surface, wherein the support ring and the crimping spring are fastened by male and female coupling. The crimp ring is characterized in that it presses the support ring toward the center of the cable.

In addition, the support ring, a cylindrical support body; A male screw portion formed on an outer peripheral portion of the support body; And a support portion formed at a rear end of the support body and restricting a fastening insertion length of the clamp spring coupled from a front end to a rear end of the support body.

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

In addition, the support part is characterized in that a certain length of the rear end of the support body is bent in the outer vertical direction of the support body, and a plurality of support grooves are formed at regular intervals in the bent part.

In addition, the crimp spring, the pressure body coupled to the outer peripheral surface of the support ring; A female thread formed on an inner circumferential surface of the pressurized body; And a shielding portion that is bent in an inward direction from the distal end of the pressurized body, extends a predetermined length, and has an inner diameter smaller than the inner diameter of the pressurized body.

In addition, a plurality of support protrusions are formed at the rear end of the pressure body.

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

In addition, when the clamp ring is fastened to the support ring, it is characterized in that a predetermined interval is spaced between a front end surface of the support ring located inside the crim spring and an inner bending surface of the crim spring.

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 crimping spring are fastened by a male and female screw coupling, the crimping spring presses the support ring, so it is easy to tighten the work compared to the conventional interference fitting method, thereby improving work efficiency.

In addition, since the crimping process is omitted, damage to the shield wire due to crimping can be prevented, thereby increasing shielding power.

In addition, in the prior art, the support ring and the crimping ring were crimped and fixed to the cable through a crimping process using separate crimping facilities. However, since the present invention is a structure fixed by a male and female coupling method, a separate crimping facility is not required. The work space utilization can be improved, which leads to cost savings.

In addition, in the present invention, when the crimping spring is fastened to the support ring, the clamping work is completed while the crimping spring is supported on the support ring, so it is easy to check whether the work is completed even with the naked eye.

In addition, the support groove forming operation can be easily performed by forming the support groove in the support portion constituting the stepped side, which is folded in the outer direction. In addition to being easy, it is possible to improve the fastening fixing force by preventing loosening due to vibration or shock.

In addition, when forming a male screw portion (or a female screw portion on the pressure body) at regular intervals on the support body, the shield wire rotating together in the fastening direction by the rotational (friction) force during the fastening operation of the support ring and the clamp spring is threaded (or screw bone). ), The shield wire is placed in a state where the male and female screws are overlapped, thereby effectively preventing damage.

In addition, it is possible to further improve the fastening fixing force by configuring the shielding portion of the crimp spring to support the crimp spring moving in a direction opposite to the fastening with a predetermined force.

In addition, when the fastening operation of the support ring and the crimping spring is completed, the space between the rear end surface of the support ring and the inner bending surface of the crimping spring is configured to be spaced apart at a predetermined distance, thereby preventing damage to the rear folded portion of the shield line.

1 is a view conceptually showing the working process of a conventional cable coupling device for a high voltage connector,
Figure 2 is an exploded perspective view showing an embodiment of a cable coupling device for a high voltage connector according to the present invention,
3 is a perspective view of a use state according to an embodiment of a cable coupling device for a high voltage connector according to the present invention;
4 is a cross-sectional view of a use state according to an embodiment of a cable coupling device for a high voltage connector according to 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 exemplary drawings. It should be noted that in adding reference numerals to the components of each drawing, the same components have the same reference numerals as possible even though they are displayed on different drawings. In addition, in describing the embodiments of the present invention, when it is determined that detailed descriptions of related well-known structures or functions interfere with the understanding of the embodiments of the present invention, detailed descriptions thereof will be omitted.

In addition, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), and the like can be used. These terms are only for distinguishing the component from other components, and the nature, order, 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, the component may be directly connected to or connected to the other component, but another component between each component It should be understood that may be "connected", "coupled" or "connected".

The present invention is to a high voltage cable (10) consisting of an inner insulating layer (12) surrounding the center line (11) and a shield wire (13) surrounding the inner insulating layer (12) and an outer insulating layer (14) surrounding the shield wire (13). It relates to a cable coupling device for a high voltage connector to be coupled.

According to the drawings, the cable coupling device for a high voltage connector according to the present invention is composed of a support ring 100 and a crimp spring 200, and mutually fastened by male and female coupling.

As described in the prior art, the support ring 100 is that the outer insulating layer 14 is fastened to surround the outer surface of the distal end of the outer insulating layer 14 at the distal end of the cable 10 with a predetermined section removed. In order to improve the fixing force of (100), the rubber ring 40 and the like may be first coupled.

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

The support body 110 is composed of a cylindrical shape having 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 clamp spring 200 to be described later. Meanwhile, although the support body 110 is illustrated in a cylindrical shape on the drawing, the inner shape of the support body 110 may vary according to the shape of the cable 10 to which the support body 110 is fastened.

The male screw portion 120 is formed in the outer circumferential portion of the support body 110 in the longitudinal direction in which the support body 110 is fastened.

The support part 130 is formed at the rear end of the support body 110 (the left end based on FIG. 4) and the crimping spring 200 coupled to the rear end of the support body 110 (the right end based on FIG. 4). Limits the length of the insertion. The support part 130 is formed by bending a certain length of the rear end of the support body 110 in the outer vertical direction of the support body 110, and a plurality of support grooves 131 are formed at regular intervals in the bent part. With the configuration of the support groove 131, bending work is easy, and the support protrusion 211 to be described later is fastened to the support groove 131.

The clamp spring 200 is fastened while surrounding the shield line 13 on the outer surface of the support ring 100 so that the shield line 13 is positioned between the outer surface of the support ring 100 and its inner surface.

Clim spring 200 is configured to include a pressing body 210, a female screw 220 and the shield 230.

The pressure body 210 is fastened to the outer circumferential surface of the support body 110 of the support ring 100, and the female screw portion 220 of the crimping spring 200 corresponding to the male screw portion 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 male and female coupling, the clamp spring 200 presses the support ring 100 toward the center of the cable 10. That is, since the shield line 13 is located between the support ring 100 and the crimping spring 200, the gap between the support ring 100 and the crimping spring 200 while the support ring 100 and the crimping spring 200 are fastened Is filled with the shield wire 13. At this time, the gap is opened by a predetermined distance by the shield wire 13, and as a result, the support ring 100 presses the circumferential surface of the cable 10 toward the center of the cable 10 as much as the gap is opened.

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

A support protrusion 211 is formed at the rear end of the pressing body 210 (the left end based on FIG. 4) in correspondence with the number and position of the support grooves 131. The support protrusion 211 is inserted into the support groove 131 of the support ring 100 according to the rotational direction of the pressurized body 210 or needs to be coupled to or separated from the support groove 131, so that the contact portion of the support groove 131 It is preferable to form a rounding.

The shield 230 of the crimping spring 200 is bent inward from the front end (the right end based on FIG. 4) of the pressurized body 210 and extends a predetermined length toward the rear end, which is smaller than the inner diameter of the pressurized body 210. It is formed to have an inner diameter. The bending portion separating the pressing body 210 and the shielding portion 230 forms a bending surface 231 inward and outward, and the inner diameter of the pressing body 210 and the shielding portion 230 is based on the bending surface 231. Is different.

On the other hand, referring to Figure 4, when the support ring 100 and the clamp ring 200 is fastened as described above, the shield wire 13 is folded to the rear end portion, and the outer surface of the support ring 100 and the clamp ring 200 It is located between the inner surfaces, and at this time, since the above-described gap exists between the female thread portion 220 and the male thread portion 120, the shield line 13 is positioned thereon, thereby supporting the support ring 100 and the crimp compared to the conventional pressing operation. During the fastening process of the ring 200, damage to the shield wire 13 is prevented. In addition, the fastening operation is completed as the rear end surface (left end surface) of the crimp spring 200 contacts the support portion 130 of the support ring 100, and at this time, the support body 110 located inside the pressurized body 210 A predetermined interval is spaced between the front end surface (right end surface) of the and the bending surface 231 formed inside the crimping spring 200. The reason for the configuration to be spaced apart at a predetermined interval is to prevent the shield wire 13 from being damaged during the fastening process when configured to contact.

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

That is, the male thread portion 120 of the support ring 100 may be configured to be formed at regular intervals instead of the whole along the circumferential direction on the outer circumference of the support body 110. When the male screw portion 120 is formed at regular intervals, the outer circumferential surface of the support body 110 is exposed as it is, and an 'A' portion is formed, and a portion without a thread, such as the 'A' portion, may be composed of a plurality. .

In addition, although not shown, the female screw portion 220 of the crimping spring 200 may also be configured to be formed at regular intervals rather than all along the circumferential direction on the inner circumferential surface of the pressure body 210. This may refer to the configuration of the male screw portion 120 described above, provided that the female screw portion 220 corresponding thereto is formed as a whole when the male screw portion 120 is formed at regular intervals, and conversely, the female screw portion 220 is formed. When forming at regular intervals, it is preferable to form the male screw portions 120 corresponding thereto as a whole to be coupled 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 pressurized body 210, thereby supporting the support ring 100 when the support ring 100 and the clamp spring 200 are fastened. ) And the shield wire 13 positioned between the clamp spring 200 is located in the 'A' portion while rotating together in the fastening direction, thereby damaging the shield wire 13 during the process of fastening the support ring 100 and the clamp spring 200. Can be effectively prevented.

When explaining the assembled state of the cable coupling device for a high voltage connector of the present invention described above is as follows.

First, the outer insulating layer 14 of the distal end of the cable 10 is removed at a predetermined interval, so that the shield wire 13 is exposed. The support ring 100 is fastened to the distal end of the cable 10 from which the outer insulating layer 14 has been removed in such a structure. At this time, before fastening the support ring 100, the rubber ring 40 may be first coupled, and the configuration of the rubber ring 40 may improve the fixing force of the support ring 10.

Since the exposed shield wire 13 is woven, the shield wire 13 is disassembled one by one and then unfolded radially. As described above, in a state in which the shield wire 13 is radially expanded, the clamp spring 200 is screwed to the support ring 100 to be fastened. This increases the working efficiency because the fastening operation is easier than the conventional interference fitting method.

As the crimping spring 200 is fastened, the radially unfolded shield line 13 is positioned at a gap between the support ring 100 and the crimping spring 200 while being folded to the rear of the support ring 100, and the gap is a shield line 13 In the process of being filled, the support ring 100 presses the cable 10 toward the center of the cable 10, so that a separate pressing process can be omitted.

The support protrusion 211 is inserted into the support groove 131 while the rear end of the crimping spring 200 is close to the support 130 of the support ring 100, and through this, it can be easily confirmed that the fastening operation is completed.

On the other hand, during the separation operation of the crimp spring 200 and the support ring 100, it proceeds in the reverse order of the above-described 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 predetermined size or more to the crimping spring 200 so that the support 130 is supported ( 211) to be elastically deformed so that the support protrusion 211 comes out of the support groove 131.

In the above, even if all the components constituting the embodiments of the present invention are described as being combined or operated as one, the present invention is not necessarily limited to these embodiments. That is, if it is within the scope of the present invention, all of the components may be selectively combined and operated. In addition, the terms "include", "consist" or "have" as described above mean that the corresponding component can be intrinsic, unless specifically stated to the contrary, excluding other components. It should not be interpreted as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as generally understood by a person skilled in the art to which the present invention pertains, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted as being consistent with the contextual meaning of the related art, and are not to be interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

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

10: cable 11: center line
12: inner insulating layer 13: shield wire
14: outer insulating layer
20: Support ring 30: Clim spring
40: rubber ring
100: support ring 110: support body
120: male thread 130: support
131: support groove
200: Clim spring 210: Pressurized body
211: support protrusion 220: female thread
230: shielding portion 231: bent surface

Claims (8)

In the cable coupling device for a high voltage connector that is coupled to a high voltage cable consisting of an inner insulating layer surrounding the center line, a shield line surrounding the inner insulating layer and an outer insulating layer surrounding the shield line,
A support ring fastened to surround the outer surface of the distal end of the outer insulating layer at the distal end of the cable where the outer insulating layer is removed for a predetermined period; And
It includes; a crimp ring which is fastened while surrounding the shield line on the outer surface of the support ring so that the shield line is positioned between the outer surface of the support ring and its inner surface; includes,
The support ring and the crimping spring is coupled by a male and female screw coupling, the cable coupling device for a high voltage connector, characterized in that the crimping spring presses the support ring toward the center of the cable.
According to claim 1, The support ring,
A support body coupled to the outer circumferential surface of the front end of the cable;
A male screw portion formed on an outer circumferential portion of the support body; And
It is formed on the rear end of the support body support portion for limiting the fastening insertion length of the clamp spring is coupled from the front end of the support body; cable coupling device for a high voltage connector comprising a.
According to claim 2,
The male screw portion is a cable coupling device for a high voltage connector formed at regular intervals in the circumferential direction on the outer circumferential portion of the support body.
According to claim 2, The support portion,
A cable coupling device for a high voltage connector having a certain length of a rear end of the support body bent in an outer vertical direction of the support body, and a plurality of support grooves are formed at regular intervals in the bent portion.
The method according to any one of claims 1 to 4, wherein the crimp spring,
A pressure body coupled to the outer circumferential surface of the support ring;
A female thread formed on an inner circumferential surface of the pressurized body; And
Cable coupling device for a high voltage connector, including; bent in the inward direction from the front end of the pressing body and extending a predetermined length, a shield having an inner diameter smaller than the inner diameter of the pressing body.
The method of claim 5,
A cable coupling device for a high voltage connector having a plurality of support protrusions formed at a rear end of the pressure body.
The method of claim 5,
The female screw 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 pressure body.
The method of claim 5,
When the clamp ring is fastened to the support ring, a cable coupling device for a high voltage connector spaced apart at a predetermined distance between a front end surface of the support ring and an inner bending surface of the crimp ring located inside the crimp ring.

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