KR100334217B1 - Filtered modular jack assembly and how to use it - Google Patents

Abstract

A filter type module jack assembly is described having an outer insulating housing having an open front and a back. Ferrite element 72 with vertical conductive wires 86, 88 is positioned adjacent the rear end, and a long insulating insert 94 is superimposed on the ferrite element. The insulating insert is secured to the housing and the conductive wire extends vertically from the ferrite element over the top surface of the insert to the terminal end and then bent downward and rearward to lie on the top surface of the inner intermediate wall in the housing. do. A method of assembling a jack with noise filtering capability is also described.

Description

Filter type module jack assembly and its use method

Background of the Invention

1. Field of Invention

The present invention relates to an electrical connector, and more particularly to an electrical connector in which a noise filter means is incorporated.

2. Brief description of conventional development

In electronic applications, including modular jacks, different types of filters are used to reduce or eliminate noise. Such filters may include three-terminal capacitors or common mode choke coils. A drawback in the use of such filters is that they can complicate the production of circuit boards. Thus, the need has been recognized to provide a simple means for filtering noise at the module jacks.

The use of an integral ferrite element for this purpose has been proposed in Japanese Patent Publication No. 64-2273. The document describes a module jack in which the module insert is installed in the casing. The insert body is formed of ferrite, and one side of the insert body is formed with an insertion hole for introducing a connecting line to be connected to each contact spring.

While the above document simplifies the device used for noise filtering in module jacks, there is a need to further improve the compactness of such module jacks by means of integral ferrite elements.

Summary of the Invention

In the module jack of the present invention, there is an outer insulating housing. An inner intermediate wall protrudes upward from the bottom wall of the housing. The housing has an open front end and a rear end, and a ferrite element is positioned over a portion of the open rear end and against the inner middle wall. The conductive wire extends upwardly through the bore in the ferrite element and through the bore in the axially aligned insulating insert. These conductive wires extend laterally in the holes of the upper surface of the insulating insert and at the terminal ends of the insulating insert bent downward and rearward to lie on the upper surface of the inner intermediate wall. On the opposite lateral side of the inner intermediate wall there is an upward extension that engages the latch on the lower base surface of the insulating insert.

The filter module jack assembly of the present invention will be described with reference to the accompanying drawings.

1 is an end view of a preferred embodiment of a filter module jack assembly of the present invention.

2 is a cross-sectional view taken along the line II-II of FIG.

3 is a detailed view of the zone within circle III of FIG.

4 is an exploded perspective view of the filter module jack assembly shown in FIG.

5, 6 and 7 are top, end and side views, respectively, of the ferrite element included in FIG.

8 is a perspective view of the ferrite element shown in FIGS. 4, 5 and 6;

9 is a cross-sectional view similar to FIG. 2 of another embodiment of a filter module jack assembly of the present invention.

10, 11 and 12 are top, end and side views, respectively, of the ferrite element included in FIG.

Figure 13 is a perspective view of the ferrite element shown in Figures 9, 10 and 11;

FIG. 14 is a cross sectional view taken along the line XIV-XIV in FIG. 13; FIG.

<Detailed Description of the Preferred Embodiments>

Referring to the drawings, the outer insulating housing is shown at 10. The housing includes a top wall 12, a bottom wall 14 and a pair of opposing side walls 16, 18. The material from which the housing is constructed is a thermoplastic polymer having suitable insulating properties. Inside the walls there is an inner zone 20 having an open rear end 22 and an open front end 24. As having a rear face 28, a front face consisting of a bottom face 29, a top face 30 and a concave intermediate front face 31, and an inclined top face 32 inclined upwards and forwards from the back face to the front face, An intermediate wall, shown at 26, projects upward from the bottom wall in the interior zone. Adjacent to the side walls, the intermediate wall has lateral extensions 34 and 36 that serve as protrusions to retain other elements described below. A plurality of wire split extensions 38, 40, 42 are interposed between these lateral extensions, and a plurality of slots 44, 46 are interposed between these wire split extensions.

Pins 48 and stand offs 50 extend downward from the bottom wall. There is also a front slot 52 in the bottom wall of the insulating housing. The side wall 16 includes a lower shoulder 54, another shoulder 56, a lower main wall 58, an upper main wall 60, and a concave wall 62 interposed between the lower main wall and the upper main wall. Include. It can be seen that the sidewall 18 has the same features as the sidewall 16. The upper wall 12 includes an upper leg 64, a lower leg 66, a front recess 68 and a rear recess 70.

The ferrite element, shown at 72, is disposed on the shoulder 73 which abuts the back side of the inner wall and is disposed over a portion of the open rear end of the insulating housing adjacent the bottom wall and which is part of the middle wall and extends upwardly from the bottom wall. By being opposed, they are held firmly in part. The ferrite element includes a top 74, a bottom 76, a front 78, a back 80 and a plurality of vertical bores 82, 84. Conductive wires 86, 88 extend downward to pass through the bores to form conductors 90, 92. By "ferrite" is meant to include, without limitation, compounds having spinel crystal structures characterized by high permeability and electrical resistivity, and materials having similar magnetic and electrical properties used for noise reduction or removal purposes. Any of the groups of ceramic ferromagnetic compounds of ferric oxide with other oxides. An insulating insert, shown at 94, includes a base surface 96, an upper surface 98, and vertical bores 100, 102. The material constituting the insulating insert is any thermoplastic polymer having suitable insulating properties. The insulating insert is “L” shaped and positioned so that the base surface abuts the upper end of the ferrite element and the bores 100 and 102 are axially aligned with the bores 84 and 82 of the ferrite element, respectively. Within the inner zone of the housing, the insert has a terminal end 104, a plurality of upper grooves 106, 108 on the top surface, and a plurality of end grooves 110 on the terminal end. The ultrasonic weld 111 holds the wire in place. The insulating insert is located at the open rear end to form a recess 112 therein. The conductive wire extends upward through the bores 110 and 112 and is bent to extend horizontally in the upper groove as in the lateral zones 114 and 116. In the end groove, the wire is bent downward to form a downward and rear extension 118 extending toward the rear end of the insulating housing. At the terminal ends 120 of the conductive wires they lie on the top surface of the intermediate wall. In addition, the insulating insert is formed into an "L" shape, the base surface of which consists of a lower base surface 122 extending inwardly with a vertical staircase 124 extending upwardly to the upper base surface 126. You should know In addition, those skilled in the art will appreciate that vertical grooves 127 may be employed in the insert to better secure the insert to the housing by snap-fitting the insert with a vertical ridge (not shown) of the housing. It can also be seen that.

Means may be provided for securing the insulating insert to the housing. In the preferred embodiment shown, such means may comprise a pair of latches 128, 130 that project downwardly from the upper base surface of the insulating insert and are triangular in cross section. The latch 128 has a front end 132 and a rear end 134, and the latch 130 has a front end 136 and a rear end 138. These clubs increase in height from the front end to the rear end of the latches so that the latches 128 and 130 pass through the top 140 of the lateral extensions 34 and 36 of the intermediate wall when the insulating insert is inserted into the housing. . When the insert is fully inserted into the interior of the housing, the rear ends 134, 138 abut the front faces 144, 146 of the lateral extensions 34, 36 to secure the insulating insert to the housing. To help secure the insulating insert to the housing, there are lateral ridges 148 and 150 that engage the respective grooves 152 and 154 of the side walls.

Another embodiment is shown in Figures 9-14. Referring to the figures, the outer insulating housing is shown at 120. The housing includes a top wall 212, a bottom wall 214, a side wall 216, and opposite side walls (not shown). Inside the walls there is an interior zone 220 having an open rear end 222 and an open front end 224. An intermediate wall 226 having a back 228 and a front face 230 and an inclined top surface 232 tilted upwards and forwards from the back face to the front face protrudes upwards from the bottom wall in the interior zone. Adjacent the side wall, the intermediate wall has a lateral extension 234. As in the assembly of the first embodiment, between the lateral extensions, there are a plurality of wire separating extensions, and there are a plurality of slots between these wire separating extensions.

Pin 248 and standoff 250 extend downward from the bottom wall. The bottom wall of the insulating housing also has a front slot 252. Similar to the first embodiment, the sidewall 216 includes a lower shoulder, another shoulder, a lower main wall, an upper main wall, and a concave wall interposed between the lower main wall and the upper main wall. The opposite sidewall has the same features as the sidewall 216. The upper wall 212 includes an upper leg 264, a lower leg 266, a front recess 268 and a rear recess 270.

The ferrite element, shown at 272, is positioned against the shoulder 273 of the bottom wall to abut against the back side of the inner wall and over a portion of the open rear end of the insulating housing adjacent the bottom wall. The ferrite element includes a top 274, a bottom 276, a front 278, a back 280, and a plurality of long vertical recesses 281, 282, 283, 284. Conductive wires 286 and 288 pass through the bores and extend downward through connecting vertical bores 287 and 289 to form leads 290 and 292. Those skilled in the art will appreciate that positioning the wire in the recess 284 reduces common mode electromagnetic interference (EMI).

An insulating insert, shown at 294, includes a base surface 296, an upper surface 298, and vertical bores 300, 302. The insulating insert is formed in an “L” shape and is positioned such that its base surface abuts the upper end of the ferrite element and the bores 300, 302 are axially aligned with the recesses 284 of the ferrite element, respectively. In the inner zone of the housing, the insert has a terminal end 304, a plurality of upper grooves 306 on the top surface, and a plurality of end grooves 310 on the terminal ends. The ultrasonic weld 311 holds the wire with respect to the groove. The insulating insert is located at the open rear end such that a slot 312 is formed therein. The conductive wire extends upward through the bores 300, 302 and is bent to extend horizontally in the upper groove as in the lateral zones 314, 316. In the end groove, the wire is bent downward to form a downward and rear extension 318 extending toward the rear end of the insulating housing. At the terminal ends 320 of the conductive wires, they lie on the top surface of the intermediate wall. In addition, the insulating insert is formed in an “L” shape, and its base surface is composed of a lower base surface 322 extending inwardly with a vertical step portion 324 extending upwardly to the upper base surface 326. You should know

Means may be provided for securing the insulating insert to the housing. In the preferred embodiment shown, such means may comprise a pair of latches 328 that project downwardly from the upper base surface of the insulating insert and are triangular in cross section. Latch 328 has a front end 332 and a rear end 334. This latch increases in height from the front end to the rear end of the latches so that the latch 328 passes through the top 340 of the lateral extension 334 of the intermediate wall when the insulating insert is inserted into the housing. When the insert is fully inserted into the interior of the housing, the rear end 334 abuts against the front face 344 of the lateral extension 234 to secure the insulating insert to the housing.

To help fix the insulating insert to the housing, there is a lateral ridge (not shown) that engages each groove (not shown) of the same sidewalls as shown in the first embodiment.

Those skilled in the art will appreciate that other equivalent configurations of securing the insulating insert to the housing are possible. As a non-limiting example, various types of internal retaining protrusions may protrude from the bottom wall of the housing adjacent the side wall to engage with the clip of the insulating insert.

In addition, one of ordinary skill in the art will appreciate that a method of assembling a module jack with noise filtering capability has been described. In particular, the method comprises the steps of: a) positioning a ferrite element having an upper end and a lower end, and a front and rear ferrite element adjacent to a rear end of the outer insulating housing, and b) a long length having a base surface and an upper surface and a terminal end. Positioning the insulating insert such that its upper surface overlaps the upper surface of the ferrite element and the upper end of the insert is adjacent to the upper surface of the insulating housing such that the terminal end extends into the inner region of the insulating housing; ) Extends vertically from the bottom to the top of the ferrite element and then vertically from the base surface of the insulating insert to the top surface, and then horizontally to the terminal end of the insulating insert and then downwards and rearwards towards the rear end of the insulating housing. Providing a conductive means to be tensioned; and d) securing the insulating insert to the insulating housing. The.

It can be seen that the means for providing an integrated noise filtering element in the module jack has been described.

It can also be seen that the means for improving the compactness of such a filter type module jack with an integral ferrite element has been described.

While the invention has been described with some specificity, it is to be understood that the invention is made by way of example only, and that the scope of the invention is defined by the following claims.

Claims (30)

A) an outer insulated housing having a top wall, a bottom wall and opposing sidewalls forming an inner zone and also having a front end and a rear end; B) a ferrite element having an upper end and a lower end and positioned adjacent to the rear end of the outer insulating housing, C) having a base surface, an upper surface, a rear end and a terminal end, the base surface being superimposed on the upper end of the ferrite element and the upper end adjacent to the upper surface of the insulating housing such that the terminal end extends into an inner region of the insulating housing. With insulation inserts, D) extending vertically from the lower end to the upper end of the ferrite element and then vertically from the base surface of the insulating insert to the upper surface, and then horizontally extending to the terminal end of the insulating insert and then downward and rearward towards the rear end of the insulating housing. Conductive means extending to, E) means for securing the insulating insert to the insulating housing; Filter type module jack assembly comprising a. The filter module jack assembly of claim 1, wherein the conductive means extends downwardly below the bottom of the ferrite element. 3. The rear end of the insulating housing according to claim 2, which extends vertically from the lower end to the upper end of the ferrite element and then vertically from the base surface of the insulating insert to the upper surface and then horizontally to the terminal end of the insulating insert. Filtered module jack assembly, characterized in that there is a parallel first conductive means and a second conductive means extending downward and rearward toward. 4. The ferrite element of claim 3 wherein there is a parallel first vertical bore and a second vertical bore extending from the lower end to the upper end of the ferrite element, wherein the insulating insert extends from the base surface of the insert to the top surface and is ferrite. There is a first vertical bore and a second vertical bore axially aligned with the first vertical bore and the second vertical bore of the element, the first conductive means being located inside the aligned first vertical bores, the second conductive And the means are located inside the aligned second vertical bores. 4. The filter type module jack assembly of claim 3, wherein there are a plurality of additional conductive means extending perpendicularly from the base surface. 6. The ferrite element of claim 5, wherein there are a plurality of parallel additional vertical bores extending from the bottom to the top of the ferrite element, and in the insulating insert a plurality of additional vertical bores extending from the base surface of the insert to the top surface. And each of the vertical bores in the ferrite element is axially aligned with one of the vertical bores of the insulating insert and has conductive means located inside each aligned bore pair. Jack assembly. The top surface of the insulated insert has a first groove extending from the first vertical bore of the insulated insert to the terminal end, and the top surface of the insulated insert has a terminal from the second vertical bore of the insulated insert. And a second groove extending to an end, the first conductive means extending within the first groove and the second conductive means extending within the second groove. 7. A method according to claim 6, wherein there are a plurality of grooves each extending from one of the vertical bores of the insulating insert to the terminal end of the insulating insert, each of the conductive means being located in one of the grooves. Filtered module jack assembly. An inner intermediate wall extends upwardly from a bottom wall of an insulated housing, said intermediate wall having a front side, a back side and an upper side, wherein terminal ends of conductive means rest on said upper side. Filtered module jack assembly. 10. The filter type module jack assembly of claim 9, wherein the top surface of the inner middle wall is inclined upwards and forwards from the back of the inner middle wall. The filter module jack assembly of claim 1, wherein at least one latch extends from the insulating insert to engage the insulating housing. 12. The filter type module jack assembly of claim 11, wherein at least one inner insert retaining protrusion extends upwardly from a bottom surface of the insulating housing to engage a latch extending from the insulating insert. 10. A method according to claim 9, wherein there is a lateral extension of the inner intermediate wall adjacent the opposing sidewalls of the housing, the latch protruding downward from the base surface of the insulating insert, the latch securing the insulating insert to the insulating housing. And a modular module jack assembly to engage with the lateral extensions. 14. The filter type module jack assembly of claim 13, wherein the latch comprises a protrusion having a rear end, a front end, and a height, the height of which is increased from the front end to the rear end and is triangular in cross section. 15. The filter type jack assembly of claim 14, wherein the base surface of the insulating insert includes a lower base surface extending inwardly with a vertical staircase extending upwardly with an upper base surface extending inwardly to the terminal end. . 16. The filter module jack assembly of claim 15, wherein the latch protrudes downwardly from the upper base surface of the insulating insert. 13. The method of claim 12, wherein the first inner retaining protrusion and the second inner retaining protrusion extending from the bottom wall of the housing are positioned adjacent each of the sidewalls of the insulating housing, the insulating insert opposing the first lateral edge and the first. There are two lateral edges, wherein the first latch and the second latch are adjacent to the first lateral insert and the second lateral insert from the insulating insert to engage with the first inner retaining protrusion and the second inner retaining protrusion, respectively. Filter type module jack assembly characterized in that extending downwards respectively. 11. The method of claim 10, wherein there is a first conductive means and a second conductive means, characterized in that the wire separating protrusion extends upwardly from the upper surface of the inner intermediate wall to separate the first conductive means and the second conductive means. Filtered module jack assembly. 15. The method of claim 14, wherein there is a plurality of additional conductive means lying on the top surface, wherein between each conductive means a wire separating protrusion extends upwardly from the inclined surface to separate each of the conductive means from adjacent conductive means. Filtered module jack assembly. 4. The filter type module jack assembly of claim 3, wherein there is a central recess extending downward in the ferrite element, wherein both the first conductive means and the second conductive means are contained within the recess. 21. The method of claim 20, wherein the first and second bores extend downwardly from the recess, wherein the first and second conductive means are separated within the first and second bores and extend downward, respectively. A filter type modular jack assembly. The filter module jack assembly of claim 1, wherein the lower end of the ferrite element is positioned against a shoulder extending upwardly from the bottom wall of the insulating housing. 23. The filter type modular jack assembly of claim 22, wherein the ferrite element is securely held in place between the ferrite element and the shoulder. A method of assembling a module jack having an outer insulated top wall, a bottom wall and opposing sidewalls forming an inner zone, wherein the housing also has a front end and a rear end, A) placing a ferrite element having an upper end and a lower end and a front side and a rear side adjacent to the rear end of the outer insulating housing, B) a long insulating insert having a base surface and an upper surface and terminal ends, the upper end of the insert being insulated such that the base surface overlaps on the top of the ferrite element and the terminal ends extend into the inner region of the insulating housing; Positioning to be adjacent to an upper surface of the housing; C) extending vertically from the lower end to the upper end of the ferrite element and then vertically from the base surface of the insulating insert to the upper surface, and then horizontally extending to the terminal end of the insulating insert and then downward and rearward towards the rear end of the insulating housing. Providing conductive means extending to D) securing the insulating insert to the insulating housing Module jack assembly method comprising a. 25. The method of claim 24, wherein the inner intermediate wall extends upwardly from the bottom wall of the insulating housing, the intermediate wall has a front side, a back side and an upper side, and the terminal end of the conductive means lies on the upper side. How to assemble a module jack. 26. The method of claim 25, wherein there is a lateral extension of the inner intermediate wall adjacent the opposing sidewalls of the housing, the latch protruding downward from the base surface of the insulating insert, the latch securing the insulating insert to the insulating housing. And the lateral extension to engage the module jack assembly method. 27. The method of claim 26, wherein the latch comprises a protrusion having a rear end, a front end, and a height, the protrusion increasing in height from the front end to the rear end and having a triangular cross section. 28. The method of claim 27, wherein the base surface of the insulating insert includes a lower base surface extending inwardly with a vertical staircase extending upwardly to an upper base surface extending inwardly to the terminal end. 29. The method of claim 28, wherein the latch protrudes downwardly from the upper base surface. A) an outer insulated housing having a top wall, a bottom wall and opposing sidewalls forming an inner zone and also having a front end and a rear end; B) a ferrite element having an upper end and a lower end and positioned adjacent to the rear end of the outer insulating housing, C) having a base surface, an upper surface, a rear end and a terminal end, the base surface being superimposed on the upper end of the ferrite element and the upper end adjacent to the upper surface of the insulating housing such that the terminal end extends into an inner region of the insulating housing. With insulation inserts, D) extending vertically from the lower end to the upper end of the ferrite element and then vertically from the base surface of the insulating insert to the upper surface, and then horizontally extending to the terminal end of the insulating insert and then downward and rearward towards the rear end of the insulating housing. With conductive means, E) means for securing the insulating insert to the insulating housing; Electrical connector comprising a.

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