KR200370917Y1 - Modular plug - Google Patents

Abstract

The present invention relates to a modular plug installed at the end of an UTP (Unshielded Twisted Pair) cable. More specifically, when connecting a plurality of twisted pairs to the plug body, crosstalk between the conductors can be minimized. The modular plug is configured to be inserted into the plug body by pressing a predetermined cover so as to separate and guide the pair to the insert upper and lower surfaces of a predetermined thickness and to prevent the conductors arranged in parallel on the same plane from being lifted or separated. It is about.

The modular plug according to the present invention is an insert for guiding a twisted pair of UTP cable and releasing the wire of the pair to align it in parallel on the same plane, and a plurality of connection blades are pressed in parallel with the insert inserted thereinto. A modular plug comprising a plug body electrically connected to electrically aligned wires, the insert comprising: an insert body made of a transparent dielectric having a predetermined thickness; An upper guide groove formed on the upper surface of the insert body to guide one twisted pair of UTP cables; A plurality of lower guide grooves formed to guide each of the remaining twisted pairs of the UTP cable on the bottom of the insert body; An alignment portion having a plurality of alignment grooves formed in front of the insert main body so that the conductors of the twisted pair of UTP cables can be released and arranged in parallel on the same plane; It comprises a through portion of a predetermined size through which a plurality of pairs guided by the lower guide groove between the insert body and the alignment portion. And the upper surface of the insert body is characterized in that a predetermined cover is installed so as to press down a plurality of parallel conducting lines arranged side by side in the alignment portion of the insert.

Description

Modular plug {MODULAR PLUG}

The present invention relates to a modular plug connected to an end of an UTP (Unshielded Twisted Pair) cable, and more particularly, to crosstalk between twisted pairs when the multiple twisted pairs are released and connected to the modular plug. To minimize this, multiple twisted pairs are arranged by separating the top and bottom surfaces of an insert made of dielectric and having a predetermined thickness, and the parallel conductors can be easily inserted into the plug body by pressing the released parallel conductors. The present invention relates to a modular plug for installing a cover of a predetermined shape made of a dielectric on an upper surface of the insert so as to minimize the crosstalk between conductors by making the length of the wire as short as possible.

In general, the modular plug is installed at both ends of the UTP cable of a predetermined length to enable a communication period or a connection between the communication device and the communication line. The UTP (Unshielded Twisted Pair) cable is the most widely used cable for digital information communication, and a plurality of conductors (signal lines) in one cable are configured in a twisted state by pairs. In this way, the pair of UTP cables are kept twisted to minimize crosstalk due to the occurrence of capacitive and inductive coupling by magnetic and electric fields in adjacent conductors.

However, in order to connect the modular plug to the end of the UTP cable, crosstalk is generated between the conductors because inevitably a plurality of twisted pairs must be released and aligned in parallel. However, in the conventional Category 5 category, which should be transmitted up to 100 MHz per pair, such crosstalk occurring in the modular plug has not been a big problem in securing transmission performance. However, in category 6, which must transmit up to 250MHz per pair, crosstalk from modular plugs should be minimized.

1 and 2 are perspective views showing two examples of the modular plug 1 according to the prior art. As shown in the figure, the conventional modular plug 1 has an insert 13 for releasing and aligning or fixing a twisted pair of UTP cable C largely, and a plug body 15 into which the insert 13 is inserted. And a plurality of connection blades 41 electrically connected to parallel conductors 17 arranged in parallel by being strongly pressed by a plurality of slits formed in the plug main body 15 with the insert 13 inserted therein. It is. In the drawing, the connection blade 14 is shown inserted into a slit formed on the front surface of the plug body 15.

At this time, the insert 13 is made of a predetermined dielectric, it is guided so that the twisted pair 12 of the UTP cable (C) can be inserted into the plug body 15. For example, the insert 13a shown in FIG. 1 has a plurality of guide grooves 16 formed on the top and bottom surfaces of a dielectric having a predetermined thickness, and 3-6 pairs and 7 out of 4 pairs of UTP cable C on the top surface. -8 pairs are installed on the bottom, and 1-2 pairs and 4-5 pairs are installed on the bottom to minimize crosstalk so that the distance between each pair is separated. Therefore, the insert 13a structure has an advantage of minimizing crosstalk between the pairs 12. However, it was difficult to align the parallel conducting lines 17 arranged in the same plane side by side at the tip of the pair 2. Accordingly, the modular plug 1 shown in FIG. 1 uses a separate heating device (not shown) to fuse the shells of the parallel conducting wires 17 to each other and to fix them in a ribbon to be inserted into the plug body 15. The process was complicated and there was a problem that a separate heating device should be provided.

On the other hand, the insert 13b shown in FIG. 2 is provided with an alignment portion 18 in which a plurality of alignment grooves are formed to align the parallel conducting lines 17 side by side on the same plane. Therefore, the insert 13b structure is advantageous for the alignment of parallel wires, but the twisted pair 12 of the UTP cable C is fixed adjacently on the same plane by using the first and second grippers 19a and 19b. There was a problem that crosstalk occurred between the pairs 12. In addition, as shown in FIG. 3, a means for pressing and fixing the plurality of parallel conductors 17 arranged in the alignment unit 18 is not provided so that the parallel conductors 17 of the plug body 15 may not be provided. There was a problem that some of the conductors 17 were lifted or separated from the alignment grooves during insertion into the internal space, so that the connection with the connection blades 14 was not smooth. Accordingly, the plug body 15 of the related art forms the inclined surface 11 at a predetermined angle therein so as to guide the parallel conducting line 17 lifting upward. However, since the inclined surface 11 is not formed, the insert 13 cannot be inserted deeply into the plug body 15, so that the length of the parallel conductor 7 between the connection blade 14 and the insert 13b is unnecessary. There was a problem in that crosstalk occurred between the lines.

The present invention is to solve this problem, and the main purpose of the present invention is to minimize crosstalk to ensure a 1 GHz transmission band by transmitting up to 250 MHz (category6) per pair in a UTP cable consisting of 4 pairs and 8 strands. To provide a modular plug.

Another object of the present invention is to at least one of the pair of UTP cable is arranged on the top surface of the insert made of dielectric so as to minimize crosstalk between the twisted pair when the multiple twisted pair is connected to the plug body The pair is not only arranged at the bottom, but also provides an insert for a modular plug in which a barrier wall made of a dielectric is integrally formed between the pair.

Another object of the present invention is to form an alignment portion for aligning parallel lines aligned in the same plane in front of the insert, while pressing the parallel lines aligned on the alignment portion to prevent the parallel lines from being scattered. In addition, to provide a cover for a modular plug that is installed on the upper surface of the insert to fix the pair arranged on the upper surface of the insert.

In addition, the present invention is to provide a plug body that is not formed with an inclined surface for guiding parallel conduction lines inside the plug body.

In order to achieve the above object, the modular plug according to the present invention, an insert for guiding the twisted pair of UTP cable, a plug body having an internal space formed so that the insert can be inserted, and the insert is pressed in the state In the modular plug comprising a plurality of connection blades electrically connected to parallel conductors arranged in parallel on the same plane,

The insert is made of a dielectric having a predetermined thickness, and an upper guide groove is formed on the upper surface of which one twisted pair of the pair of UTP cables is guided, and a plurality of guides of the remaining twisted pairs of the UTP cable are guided on the bottom surface thereof. An insert body having a lower guide groove formed therebetween and a predetermined blocking wall integrally formed between the lower guide grooves;

An alignment part integrally formed at the front of the insert main body, and having a plurality of alignment grooves formed so as to be parallel to the same plane by releasing the conducting wires of each pair;

And a through portion formed to penetrate between the insert body and the alignment portion to guide the upper portion of the plurality of pairs arranged on the bottom surface of the insert body.

In the present invention, the upper guide groove formed in the upper surface of the insert body and the alignment groove formed in the alignment portion are stepped to a predetermined height, the lower guide groove formed in the bottom surface of the insert body and the alignment groove formed in the alignment portion It is characterized by being stepped to a predetermined height.

The rear of the insert body has a guide portion formed to taper shape by extending the barrier wall a predetermined length so as to smoothly guide the plurality of pairs drawn out from the UTP cable and to block the pairs.

Next, the present invention is a pair arranged in the upper guide groove formed on the upper surface of the insert to prevent the parallel conduction line from being scattered by pressing the parallel conduction line aligned in line in the alignment portion formed in front of the insert body to the bottom It is configured to include a cover installed on the upper surface of the insert to fix the.

The cover is a plate-shaped body made to be inserted into the seating groove formed on the upper surface of the insert body, the front of the plurality of pressing grooves are formed so as to press the plurality of conductors arranged side by side in the alignment portion below The bent portion is integrally formed.

In addition, the cover, a predetermined coupling protrusion is integrally formed to be coupled to the coupling groove formed on one side of the seating groove.

In addition, the present invention is characterized in that a predetermined vertical surface is formed to be in close contact with the bent portion of the cover in front of the inner space formed in the plug body.

1 is a perspective view showing an example of a modular plug according to the prior art;

2 is a perspective view showing another example of a modular plug according to the prior art;

3 is a cross-sectional view of the modular plug shown in FIG.

Figure 4 is an exploded perspective view of a modular plug according to the present invention,

5 is a perspective view showing an insert and a cover according to the present invention;

6 to 9 is a front view, a side view, a rear view and a bottom view showing an insert according to the present invention,

10 to 12 is a plan view, a front view and a side view showing a cover according to the present invention,

Figure 13 is a plan view showing a state where the insert UTP cable is installed according to the present invention,

14 is a cross-sectional view showing a modular plug according to the present invention.

**** Description of the symbols for the main parts of the drawings ****

10: modular plug 12, 12a, 12b: pair

17: parallel line 30: insert

31: mounting groove 32: fixing groove

33: insert body 34: upper guide groove

35: lower guide groove 36: barrier wall

37: guide part 40: alignment part

41: alignment groove 50: plug body

51: interior space 52: vertical wall

70: cover 73: bend

74: pressure groove

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a modular plug that minimizes the occurrence of crosstalk according to the present invention will be described in detail.

First, Figure 4 is a perspective view showing a modular plug according to the present invention, Figure 5 is a perspective view showing an insert and a cover according to the present invention. As shown, the modular plug 10 according to the present invention. The twisted pairs 12 of the UTP cable C are guided by being spaced apart from the top and front sides, and the ends 30 of the inserts are arranged to parallelly arrange a plurality of parallel conductors 17 on the same plane. The cover 70 is coupled to the seating groove 31 formed on the upper surface of the 30 and presses the pair 12a installed on the upper surface of the parallel conductor 17 and the insert 30, and the insert 30 is inserted therein. It is composed of a plug main body 50 for electrically connecting the plurality of connection blades 14 in the state of being connected to the conductive wires 17 arranged in parallel.

Hereinafter, the insert 30 and the cover 70 according to the present invention will be described in more detail with reference to FIGS. 6 to 12. First, Figures 6 to 9 is a front view, a side view, a rear view and a bottom view showing the insert 30 according to the present invention. As shown, the insert 30 of the present invention is formed with an upper guide groove 34 for guiding one twisted pair on the upper surface 33a of the insert body 33 made of a dielectric having a predetermined thickness. In addition, the upper surface 33a of the insert main body 33 is formed with a triangular mounting groove 31 on which the cover 70 is seated to a predetermined depth. In addition, one side of the seating groove 31 is formed with a fixing groove for fixing the coupling protrusion integrally formed in the cover 70 to a predetermined depth. In addition, the front portion of the upper guide groove 34 is formed with an enlarged portion so that the two conductive wires 3-6 constituting the pair 12a can be opened by predetermined intervals.

In addition, as shown in Figure 9, the lower guide groove 35 for guiding the three twisted pair (12b) is provided in parallel on the bottom surface (33b) of the insert body (33). A predetermined blocking wall 36 is integrally formed between the lower guide grooves 35. A guide portion 37 for guiding the four twisted pairs 12 is formed at the rear of the insert body 33. The guide portion 37 has a tapered shape in which the blocking wall 36 extends a predetermined length backward to block the pairs. Accordingly, the upper guide groove 34 formed in the upper surface 33a of the insert body 33 and the lower guide groove 35 formed in the center of the bottom surface 33b are completely blocked to the rear end of the guide portion 37. On the other hand, the lower guide groove 35 formed on both sides of the bottom of the guide portion 37 is opened to both sides.

Subsequently, in front of the insert body 33, an alignment part 40 having a plurality of alignment grooves 41 formed therein is integrally formed in order to parallelly arrange the plurality of parallel conducting lines 17. At this time, the upper guide groove 34 formed in the upper surface 33a of the insert body 33 and the alignment groove 41 formed in the alignment portion 40 are stepped to a predetermined height, and the bottom surface of the insert body 33 is The lower guide groove 35 formed in the 33b and the alignment groove 41 formed in the alignment portion 40 are also stepped to a predetermined height. A through groove 45 having a predetermined size is formed between the insert body 33 and the alignment unit 40. The through grooves 45 are divided into three by the blocking wall 36 formed on the bottom surface 33b of the insert body 33. Therefore, the three pairs 12b guided along the lower guide groove 35 are guided upward through the through grooves 45, respectively. On the other hand, the pair 12a guided through the upper guide groove 34 of the insert body 33 is guided to the upper part of the two blocking walls 45 formed in the center of the through groove 45 and the adjacent pair 12b. Is blocked. In addition, guide walls 43 having a predetermined height are vertically formed on both side surfaces of the alignment part 40 to prevent deviation of the parallel conducting line 17. Therefore, the pair 12a guided through the upper guide groove 34 formed on the upper surface 33a of the insert body 30 having a predetermined thickness is bent downwardly to the alignment groove 41 of the alignment part 40. The pair 12b which is arranged and guided through the lower guide groove 35 formed in the bottom surface 33b is bent obliquely upward and arranged in the same plane in the alignment groove 41 of the alignment portion 40.

10 to 12 are a plan view, a front view and a side view showing the cover 70 according to the present invention. As shown, the cover 70 of the present invention is a plate-like body made of a dielectric having a predetermined thickness, and has a triangular shape that becomes narrower toward the rear. In addition, a bent portion 73 bent at a predetermined angle is integrally formed at the front end thereof, and a plurality of pressing grooves 74 are formed on the bottom surface of the bent portion 73 to press the parallel conducting line 17. It is. In addition, on both sides of the cover 70 is formed a coupling protrusion 73 is coupled to the fixing groove 32 formed in the seating groove 31 of the insert body 33 is protruded vertically after extending a predetermined length in the horizontal direction It is. In addition, the cover 70 according to the present invention may be manufactured to have different colors such as red, blue, green, and the like. Therefore, by fixing the cover 70 having a predetermined color to the transparent plug body 50 to perform the function of the identification plate to identify the type.

On the other hand, Figure 13 is a plan view showing a pair of UTP cable (C) arranged in the insert 30 according to the present invention. As shown, 3-6 pairs (12a) of the four pairs of UTP cable (C) is installed in the upper guide groove 34 formed on the upper surface (33a) of the insert body 33 in a twisted state, UTP cable 1-2, 4-5 and 7-8 pairs 12b of the four pairs of (C) are installed through the lower guide groove 35 formed in the bottom surface 33b of the insert body 33 in a twisted state. . And each twisted pair 12a, 12b is unrolled in front of the insert body 33 and then guided through the lower guide groove 35 of the insert body 33. The eight pair 12b is bent obliquely upward through the through part 45 divided by the blocking wall 35 and arranged side by side in the alignment groove 41 of the alignment part 40, and the insert body 33 The 3-6 pairs 12a guided through the upper guide grooves 34 are installed in the alignment grooves 41 formed on both sides of the 4-5 pairs arranged side by side with two wires at a predetermined angle from side to side. In addition, the cover 70 is covered with the upper portion of the 3-6 pairs 12a to prevent the 3-6 pairs 12a from lifting and at the same time, the pressing groove 74 formed in the bent portion 73 of the cover 70. ) Is coupled to the alignment unit 40 in a state in which the parallel conductors 17 arranged in a line are pressed downward.

14 is a cross-sectional view showing a state in which the insert 30 to which the cover 70 is coupled is inserted into the plug body 50. As shown in the drawing, an inner space 51 having a predetermined size is formed inside the plug body 50, and a front end of the bent portion 73 of the cover 70 is formed on the front surface of the inner space 51. The vertical surface 52 which contacts this is formed. Therefore, when the cover 70 is inserted into the inner space 51 formed in the plug body 50 while the cover 70 is coupled to the upper surface of the insert 30, the insert 30 is aligned with the alignment unit 40 while the insert 30 is inserted. Not only does the parallel conduction line 17 prevent lifting, but also there is no inclined surface for guiding the parallel conduction line 17 on the front surface of the internal space 51, so that the parallel conduction line between the connection blade 14 and the twisted waste fish ( The length of 17) can be prevented from being unnecessarily long. Here, reference numeral 53 is a crimping portion for pressing and fixing the sheath of the UTP cable (C), 55 is a fixing lever to allow the modular plug to be inserted / fixed to the modular jack (not shown).

Hereinafter will be described the assembly process of the modular plug 10 according to the present invention. First, one of the twisted pairs 12a of the UTP cable C is installed along the upper guide groove 34 formed on the upper surface of the insert body 33, and the other twisted pairs 12b are inserted into the insert body ( 33 is installed along the lower guide groove (35) formed on the bottom surface. And the ends of the pair guided along the upper guide groove 34 and the lower guide groove 35 of the insert body 33 is released in parallel alignment and the alignment portion 40 formed in front of the insert body 33 It is arranged side by side in the alignment groove (41). In this case, the pairs 12b guided along the lower guide grooves 35 are bent and installed inclined upwardly through the through parts 45 formed between the insert body 33 and the alignment part 40, and the upper parts The pair 12a guided along the guide groove 34 is bent downwardly and is installed on the alignment part 40 in the same plane. In addition, the pair 12a guided along the upper guide groove 34, that is, 3-6 pairs are installed at both sides of 4-5 pairs of the pair 12b guided along the lower guide groove 35. Minimize aging between parallel lines.

Subsequently, the cover 70 according to the present invention is coupled to the seating groove 31 formed in the upper surface 33a of the insert 30 to prevent the pair 12a guided along the upper guide groove 34 from being separated. In addition, the pressing groove 74 formed at the tip of the cover 70 presses the parallel conductive line 17 aligned with the alignment groove 41 downward to prevent the parallel conductive line 17 from lifting. Then, the front end of the parallel conducting line 17 aligned with the alignment unit 40 is cut neatly, and the insert 30 is pushed through the opening of the plug body 50 while pressing the cover 70 by hand. Insert it. In addition, the alignment part 40 of the insert 30 is pressed in close contact with the inside of the plug body 50, and the plurality of connection blades 14 are strongly pressed by using a predetermined tool to form parallel conductors 17. To be electrically connected. Finally, the pressing portion 53 formed on one side of the plug body 50 is pressed down using a predetermined tool so that the pressing piece 54 strongly fixes the tube of the UTP cable C.

As described above, in the modular plug according to the present invention, one pair of four pairs of UTP cables is arranged on the top surface of the insert and the other pair is arranged on the bottom surface, and at the same time, a barrier wall is formed between the pairs to prevent crosstalk between pairs. It can be minimized.

In addition, the present invention is provided with a cover coupled to the upper surface of the insert, by pressing parallel parallel lines aligned in the same plane in front of the insert to prevent the wire from being scattered or lifted when inserting the insert into the plug body It is possible to minimize crosstalk by minimizing the length of the parallel conductor by providing a good connection with the connection blade and not providing a separate inclined surface for guiding the parallel conductor in the plug body.

Accordingly, the modular plug according to the present invention transmits up to 250 MHz (category 6) per pair in the UTP cable 4 pairs, thereby ensuring a 1 GHz transmission band.

Claims (7)

A plurality of connections electrically connected to the insert guiding the twisted pairs of the UTP cable, a plug body having an internal space therein for inserting the insert, and parallel wires arranged in parallel with the insert being pressed In a modular plug comprising a blade, The insert is made of a dielectric having a predetermined thickness, and an upper guide groove is formed on the upper surface of which one twisted pair of the pair of UTP cables is guided, and a plurality of guides of the remaining twisted pairs of the UTP cable are respectively guided on the bottom of the insert. An insert body having a lower guide groove formed therein and a predetermined barrier wall integrally formed between the lower guide grooves; An alignment part integrally formed at the front of the insert main body, and having a plurality of alignment grooves arranged in a line so as to release the conducting wires of each pair and arrange them in parallel on the same plane; And a through portion formed to penetrate between the insert body and the alignment portion so as to guide the plurality of pairs arranged at the bottom of the insert body upward. The method of claim 1, The upper guide groove formed in the upper surface of the insert body and the alignment groove formed in the alignment portion are formed stepped at a predetermined height, and the lower guide groove formed in the bottom surface of the insert body and the alignment groove formed in the alignment portion are also stepped to a predetermined height. Modular plug, characterized in that the fork formed. The method of claim 1, The rear of the insert body is a modular plug, characterized in that the guide portion formed in a tapered shape so as to smoothly guide the plurality of pairs drawn out from the UTP cable and a predetermined barrier wall is formed between the pairs. The method of claim 1, Pressing parallel lines aligned in a row to the alignment unit formed at the front of the insert body to prevent the parallel lines from being scattered and to fix the pair arranged along the upper guide groove formed on the upper surface of the insert. Modular plug, characterized in that configured to include a cover installed on the upper surface of the insert. The method of claim 4, wherein The cover is a plate-shaped body made to be inserted into the seating groove formed on the upper surface of the insert body, the front of the bent is formed with a plurality of pressing grooves to press a plurality of parallel conducting wires arranged side by side in the alignment portion Modular plug, characterized in that the integrally formed. The method of claim 5, The cover is a modular plug, characterized in that a predetermined coupling protrusion is formed integrally to be coupled to the coupling groove formed on one side of the seating groove. The method of claim 1, The front surface of the inner space formed in the plug body modular plug, characterized in that the vertical surface is formed so that the bent portion of the cover in close contact.