JP2012157112A - Modular jack outlet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a modular jack outlet to which a signal line connected to a modular plug is connectable, on the rear side of a construction surface, with the number of attachable pieces to a fitting frame being increased.SOLUTION: A modular jack outlet 1 is equipped with a fitting 2 that is attached to a construction surface using a fitting frame for an embedded type wiring fitting under such condition as its rear part is stored in an embedding hole opened on the construction surface. A portion that is stored in the embedding hole of the fitting 2 is provided with a first connection opening 8 into which a modular plug that is connected to a first signal line wired on the rear side of the construction surface is inserted and connected. The first connection opening 8 is provided to the fitting 2, being deviated laterally from the center, such that the modular plug connected to the first connection opening 8 does not interferer with a fixing screw for fixing the fitting frame to a switch box.

Description

  The present invention relates to a modular jack outlet to which a modular plug is detachably connected.

  Conventionally, there has been provided a modular jack outlet that is installed with a rear part embedded in a construction surface using a mounting frame standardized for an embedded wiring apparatus and used to relay a signal line for transmitting an electrical signal. (For example, refer to Patent Document 1).

  The modular jack outlet disclosed in Patent Document 1 includes a connection port on a front surface to which a modular plug connected to a signal line is detachably connected. In addition, the modular jack outlet has a pressure contact type contact, in which the cores of multi-core signal wires wired on the back side of the construction surface are pressed and connected to the rear part housed in the embedding box embedded in the construction surface. Several are arranged. Therefore, when connecting a multi-core signal line wired on the back side of the construction surface to this modular jack outlet, the signal line is cut at an appropriate length in the field, and each core line of this signal line is corresponding. It is necessary to connect each contact.

  In recent years, in some housing companies, there has been a demand for minimizing electrical work at a construction site, and the use of signal lines in which modular plugs are pre-terminated has been increasing. Here, when a signal line in which a modular jack is pre-terminated is used for the preceding wiring that is wired on the back side of the construction surface, the modular portion in which the connecting portion to which the preceding wiring is connected in the embedded box is configured by a modular jack. A jack outlet is employed (see, for example, Patent Document 2). FIG. 9 is an external perspective view of the modular jack outlet described above. A plug connection port 61 is provided on the front side of the container body 60, and a signal line is also provided at the rear part of the container body 60 housed in the embedded box. A connection port 62 to which the modular plug terminated is connected.

JP 2000-48897 A JP 2004-171883 A

  By the way, in general homes, only communication devices such as personal computers and routers were conventionally connected to the LAN. However, AV devices such as televisions equipped with a network communication function have been widely used, and devices connected to the LAN in the future. Is expected to increase. Therefore, the number of modular jack outlets installed in each room is expected to increase.

  In the modular jack outlet disclosed in Patent Document 2 above, the connection port 62 provided in the portion housed in the embedding box opens upward, and the modular plug is inserted into the connection port 62 obliquely from the rear rear side. Connected. Further, the connection port 62 is located at the approximate center of the container 60 in the left-right direction. Up to three unit-sized embedded wiring devices can be attached to a series of mounting frames used to attach this modular jack outlet to the construction surface, and are inserted through the insertion holes provided at both ends in the longitudinal direction. The fixing screws are fixed to the embedding box. When this mounting frame is attached to the embedding box with the longitudinal direction as the vertical direction, if the modular jack outlet is installed at the mounting position above the mounting frame, the plug interferes with the fixing screw that fixes the mounting frame. Therefore, the plug could not be connected to the connection port 62. Therefore, three modular jack outlets cannot be attached to the attachment frame, and there is a problem that the number of attachments to a single attachment frame is reduced.

  The present invention has been made in view of the above problems, and the object of the present invention is to make it possible to connect a signal line terminated with a modular plug on the back side of the construction surface and to be attached to a mounting frame. It is to provide a modular jack outlet with increased capacity.

  In order to solve the above-mentioned problems, the modular jack outlet of the present invention is attached to the construction surface in a state where the rear portion is housed in the embedding hole opened in the construction surface, using the mounting frame for the embedded wiring apparatus. Has a body. In this container body, a portion that is housed in the embedding hole is provided with a first connection port into which a modular plug terminated by a first signal line wired on the back side of the construction surface is plugged and connected. Yes. This 1st connection port is shifted and provided in the container from the center position of the left-right direction at the end.

  In this modular jack outlet, it is also preferable that the second connection port is provided on the front surface of the container body and a conductive member is provided inside the container body. A modular plug terminated with a second signal line is plugged into the second connection port. The conductive member electrically connects between the modular plug inserted and connected to the first connection port and the modular plug inserted and connected to the second connection port.

  In this modular jack outlet, it is also preferable that the first connection port be provided in a direction in which the modular plug is inserted and connected obliquely from the lower rear side in a state where the body is attached to the construction surface via the attachment frame.

  In this modular jack outlet, it is also preferable that the first connection port and the second connection port are shifted in the left-right direction so as not to overlap each other when viewed from the front-rear direction.

  In this modular jack outlet, the inclination angle with respect to the horizontal direction of the plug connection direction to the first connection port may be 25 degrees or more and 40 degrees or less in a state where the body is attached to the construction surface via the attachment frame. preferable.

  In this modular jack outlet, it is also preferable that a hook portion for hooking the outer jacket of the first signal line connected to the first connection port is provided in a portion of the container housed in the embedding hole.

  ADVANTAGE OF THE INVENTION According to this invention, the modular jack outlet which can connect the signal wire | terminal with which the modular plug was terminated in the back side of a construction surface, and increased the number which can be attached to a mounting frame can be provided.

The modular jack outlet of this embodiment is shown, (a) is a front view, (b) is a right side view, (c) is a rear view, and (d) is a bottom view. (A) is the external appearance perspective view which looked at the same from the front, (b) is the external appearance perspective view which looked at the same from the back. The state where the modular plug is connected to the above is shown, (a) is a side view, (b) is a side view partially broken. It is the external appearance perspective view which looked at the state where the modular plug was connected to the same from the back. It is the perspective view which showed typically the printed wiring board which comprises the same as the above. It is the perspective view which showed the state before attaching the same to a construction surface. It is a rear view of the state which attached the same to the attachment frame. It is the external appearance perspective view which looked at the other form same as the above from back. It is an external appearance perspective view of the conventional modular jack outlet.

  The modular jack outlet of the present embodiment will be described with reference to FIGS. In the following description, unless otherwise specified, the direction shown in FIG. 1 (a) is defined as the top / bottom / left / right directions (the same as the top / bottom / left / right when attached to the construction surface). The left side is the front side and the right side is the rear side.

  The modular jack outlet 1 according to the present embodiment has a construction surface (for example, a wall surface) using a mounting frame 30 for an embedded wiring device to be described later (for example, a mounting frame for a large-angle continuous wiring device standardized by JIS C 8375). Installed.

  The container 2 of the modular jack outlet 1 is made of a synthetic resin molded product, and is divided into, for example, two parts in the front-rear direction, and is configured by joining these two parts.

  The front surface of the container body 2 is formed in a substantially rectangular shape. A rectangular parallelepiped boss portion 3 is integrally provided on the front surface of the vessel body 2, and the boss portion 3 projects forward from the left and right step portions 4 and 4. A pair of projections 5 projecting sideways are provided on the side edges of the respective stepped portions 4. Further, each step portion 4 is formed with a slot 6 that opens to the side. Here, the protrusion 5 is used for attaching the container 2 to the synthetic resin attachment frame 30, and the slot 6 is used for attaching the container 2 to a metal attachment frame (not shown).

  An inclined surface 7 is provided on the lower rear side of the vessel body 2, and the first signal line 20 (for example, a 4 to 8 core twisted pair wire) wired in advance on the back side of the construction surface is provided on the right side of the inclined surface 7. The connection port 8 into which the modular plug 21 terminated in (1) is inserted and connected is opened. Inside the connection port 8, a plurality of first contact pins 9 (for example, eight poles) that are elastically contacted with the contact pins of the modular plug 21 are arranged. Here, in a state where the modular jack outlet 1 is attached to the construction surface using the attachment frame 30, the connection port 8 is provided in a direction in which the modular plug 21 is inserted and connected obliquely from below. And the inclination | tilt angle (theta) with respect to the horizontal direction L1 of the connection direction L2 of the modular plug 21 to the connection port 8 is 25 degree | times or more and 40 degrees or less (refer FIG. 3).

  In the center of the front surface of the boss 3, there is opened a connection port 10 into which a modular plug 23 terminated by a second signal line 22 (for example, formed of a twisted pair wire of 4 to 8 cores) is inserted and connected. . Also in the connection port 10, a plurality of (for example, eight) second contact pins 11 that are elastically contacted with the contact pins of the modular plug 23 are disposed. Although not shown in FIG. 1, the container body 2 is provided with a door that covers the connection port 10 so as to be freely opened and closed. For such a door, for example, a conventionally known configuration disclosed in, for example, Japanese Patent Laid-Open No. 2000-48897 may be adopted, and the description thereof is omitted.

  Inside the container body 2 is housed a printed wiring board 12 on which the first and second contact pins 9 and 11 each having 8 poles are mounted (see FIGS. 3B and 5). The printed wiring board 12 is disposed on the upper side of the connection ports 8 and 10 inside the container body 2. On the lower side surface of the printed wiring board 12, first contact pins 9 are mounted at portions corresponding to the connection ports 8, and eight-pole second contact pins 11 are mounted at portions corresponding to the connection ports 10. Note that the heights of the contact pins of the modular plug 21 connected to the connection port 8 and the contact pins of the modular plug 23 connected to the connection port 10 are different. Bases 13 and 14 are provided for absorption. The first contact pin 9 is mounted on one pedestal 13, and the second contact pin 11 is mounted on the other pedestal 14. As described above, the connection direction of the modular plug 21 to the connection port 8 is inclined by the angle θ with respect to the connection direction of the modular plug 23 to the connection port 10. Therefore, the surface of the pedestal 13 on which the first contact pins 9 are mounted is inclined by an angle θ with respect to the surface of the pedestal 14 on which the second contact pins 11 are mounted. The printed wiring board 12 is formed with a conductive pattern that electrically connects each of the eight-pole first contact pins 9 to the corresponding second contact pin 11. Here, a modular plug 21 connected to the first connection port 8 and a modular connected to the second connection port 10 are formed by the conductive pattern formed on the printed wiring board 12 and the first and second contact pins 9 and 11. A conductive member that electrically connects the plug 23 is configured.

  As shown in FIG. 6, the modular jack outlet 1 of this embodiment is attached to a switch box 50 embedded in an embedding hole provided on a construction surface (for example, a wall surface) via an attachment frame 30. The illustrated attachment frame 30 is for three pieces (one series type) used when attaching a large-angle continuous wiring apparatus which is an embedded wiring apparatus to a construction surface. The mounting frame 30 is made of synthetic resin, and includes a left side 32a, 32b, an upper side 35a that connects the upper ends of both sides 32a, 32b, and a lower side that connects the lower ends of both sides 32a, 32b. It is formed in a rectangular frame shape with the side 35b. On each of the left and right sides 32a and 32b, two sets of engagement holes 33 that are engaged with two projections 5 that are provided on each side edge of the vessel body 2 are provided. The side 32a is formed with a bending piece 34 that can be bent to change the distance between the side 32b and the other side 32b.

  When attaching the modular jack outlet 1 to the mounting frame 30, the protrusion 5 on one side (left side) of the container body 2 is inserted into the engagement hole 33 on one side 32 b from the rear side of the mounting frame 30. To do. When the projection 5 on one side is inserted into the engaging hole 33 on the side 32b and the opposite side (right side) of the body 2 is pushed forward, the projection 5 on the opposite side of the body 2 is pushed and bent. As the piece 34 bends, the protrusion 5 on the opposite side of the vessel body 2 engages with the engagement hole 33 on the other side 32a (right side). As a result, two protrusions 5 provided on both sides of the container body 2 are engaged with the pair of engagement holes 33 on the sides 32a and 32b, respectively, and the container body 2 of the modular jack outlet 1 is attached to the mounting frame 30. Attached to. In this attached state, the boss 3 of the container body 2 projects forward from the opening 31 surrounded by the side sides 32a and 32b, the upper side 35a and the lower piece 35b.

  On the other hand, when the modular jack outlet 1 is removed from the mounting frame 30, when the bending piece 34 is squeezed by a tool inserted from the front between the bending piece 34 and the side 32a, Since the engagement state between the projection 33 and the projection 5 is released, the container body 2 can be easily removed.

  In addition, when attaching the modular jack outlet 1 to a metal mounting frame (not shown), the holding claws provided on the metal mounting frame are fitted into the slots 6 on both sides of the body 2. Thus, the container body 2 is attached to the attachment frame.

  Here, the mounting dimensions of the projections 5 and the slot 6 are formed to be approximately equal to the unit dimensions of the wiring equipment that can be attached to the mounting frame 30 of the large-angle continuous wiring equipment. Further, the outer dimensions of the container body 2 are formed to be approximately the same as the unit dimension (one module dimension) of the large-angle continuous wiring apparatus. Therefore, a plurality of modular jack outlets 1 can be arranged side by side on the mounting frame 30, or the modular jack outlets 1 can be arranged side by side on the mounting frame 30 together with other wiring devices. The mounting dimensions of the protrusions 5 and the slots 6 and the outer dimensions of the container body 2 are not limited to the above dimensions, and can be changed as appropriate.

  A long hole 36 for passing a fixing screw 38 for connecting the mounting frame 30 to the switch box 50 is provided in the upper side 35a and the lower side 35b connecting the upper ends and the lower ends of the both sides 32a and 32b, respectively. It has been. The upper side 35a and the lower side 35b are provided with screw holes 37 into which plate screws 39 for connecting the decorative plate 40 covering the front surface of the mounting frame 30 are screwed.

  The switch box 50 to which the mounting frame 30 is mounted is for one (standard one mounting frame 30 is mounted) standardized by the JIS standard (see JIS C 8340 etc.), for example. It is embed | buried in the embedding hole provided in the surface. The switch box 50 is made of a steel plate and is formed in a substantially box shape with an open front surface. The peripheral surface is provided with a plurality of holes 51 for introducing electric wires. Further, fixing pieces 52 and 52 extending upward and downward respectively are provided on one side surface, and each fixing piece 52 is provided with an insertion hole 53 for inserting a fixing screw 56. In addition, ribs 54 each having a screw hole 55 into which the fixing screw 38 is screwed are provided at the center of the front edge of the upper wall and the lower wall of the switch box 50.

  Thus, the fixing screw 38 is inserted into the long hole 36 of the mounting frame 30 to which the modular jack outlet 1 is attached, and the fixing screw 38 is screwed into the screw hole 55, so that the switch box 50 embedded in the construction surface is inserted. The mounting frame 30 can be fixed.

  The decorative plate 40 is provided with an insertion hole 42 for inserting a plate screw 39 and a window hole 41 for exposing the boss portion 3 of the body 2. The decorative plate 40 is fixed to the front surface side of the mounting frame 30 by screwing a plate screw 39 passed through the insertion hole 42 into the screw hole 37 of the mounting frame 30.

  In the present embodiment, as shown in FIG. 8, a portion of the container body 2 (for example, the back surface of the container body 2) accommodated in the switch box 50 (that is, in the embedding hole provided in the construction surface) You may provide the hook 15 (hook part) which hooks the jacket of the 1st signal wire | line 20 connected to the 1 connection port 8. FIG. The hook 15 is formed in a substantially L shape, and a claw 15 b protruding toward the back surface of the container body 2 is formed at the tip of the sandwiching piece 15 a parallel to the back surface of the container body 2. Thus, when the outer covering of the first signal line 20 is inserted between the back surface of the container 2 and the holding piece 15a of the hook 15, the outer covering of the first signal line 20 is held by the holding piece 15a. At this time, the claws 15b are in contact with the outer jacket of the first signal line 20, so that the outer jacket of the first signal line 20 is difficult to come off. In the illustrated example, the hook 15 is formed integrally with the container body 2, but the hook 15 may be formed separately from the container body 2 and attached to the container body 2.

  Here, in the first signal line 20 made of a twisted pair wire, the bending radius of the first signal line 20 is set to be four times or more of the outer diameter R in order to prevent the transmission characteristics from being deteriorated due to deterioration or damage of the coating due to excessive tension. Is required to do. Here, when the outer diameter R of the first signal line 20 is 5.5 mm, the outer circumference of the first signal line 20 is hooked on the hook 15 at a position farther from the rear end of the modular plug 21 than about 36 to 40 mm. In this way, the bending radius of the first signal line 20 can be kept at about 4R. Therefore, the bending radius of the first signal line 20 can be made larger than the allowable minimum bending radius, and the possibility that the first signal line 20 is bent excessively can be reduced.

  As described above, the modular jack outlet 1 according to the present embodiment uses the mounting frame 30 for the embedded wiring apparatus, and the rear portion is housed in the embedded hole (that is, inside the switch box 50) that opens in the construction surface. The container 2 attached to the construction surface is provided. A first connection port 8 into which a modular plug 21 terminated to a first signal line 20 wired on the back side of the construction surface is plugged and connected to a portion of the container body 2 accommodated in the embedded hole. Is provided. The first connection port 8 is provided to be shifted from the center position in the left-right direction to the end (right end as viewed from the rear side in the present embodiment) in the container body 2.

  Thereby, even when three modular jack outlets 1 are arranged side by side with respect to the mounting frame 30, the modular plug 21 connected to the first connection port 8 of the modular jack outlet 1 disposed on the lower side is attached to the mounting frame 30. Can be prevented from interfering with the fixing screw 38 for fixing. Further, the first connection port 8 of the modular jack outlet 1 disposed on the upper side is located on the lower side of the container body 2, and the modular plug 21 connected to the first connection port 8 protrudes obliquely rearwardly downward. It does not interfere with the fixing screw 38 on the upper side. Therefore, the modular jack outlet 1 can be attached to any of the three attachment positions on the attachment frame 30, and the number of modular jack outlets 1 that can be attached to one series of attachment frames 30 can be increased. Therefore, the modular jack outlet 1 can be realized in which the signal line with the modular plug terminated on the back side of the construction surface can be connected, and the number of the modular jack outlets 1 that can be attached to the mounting frame 30 can be increased. In this case, since the number of mounting frames 30 required can be reduced, the space for installing the mounting frames 30 can be reduced.

  Moreover, in this embodiment, the 2nd connection port 10 in which the modular plug 23 terminated by the 2nd signal wire | line 22 is inserted and connected is provided in the front surface of the container body 2. As shown in FIG. In the interior of the vessel body 2, a conductive member (electrically connecting between the modular plug 21 plugged into the first connection port 8 and the modular plug 23 plugged into the second connection port 10 ( A printed wiring board 12 and first and second contact pins 9 and 11) are provided.

  Thereby, the modular plug 21 connected to the first connection port 8 and the modular plug 23 connected to the second connection port 10 can be electrically connected.

  Moreover, in this embodiment, the 1st connection port 8 is provided in the direction in which the modular plug 21 is plugged in from the back diagonally in the state where the container 2 is attached to the construction surface via the attachment frame 30. Yes.

  Thereby, since the tip of the modular plug 21 connected to the first connection port 8 faces upward, even if water drops due to condensation or the like fall along the first signal line 20, the modular plug 21 is connected to the inside of the first connection port 8. The possibility of water droplets entering can be reduced. Therefore, it is possible to reduce the possibility of rusting or short-circuiting on the conductive pattern of the printed wiring board 12 or the contact pins 9 due to water droplets entering the inside of the container body 2.

  Moreover, in this embodiment, as shown in FIG.1 (c), the 1st connection port 8 and the 2nd connection port 10 are shifted and arrange | positioned in the left-right direction so that it may not overlap mutually seeing from the front-back direction.

  Here, when the first connection port 8 and the second connection port 10 are partially or entirely overlapped with each other when viewed from the front-rear direction, the modular plug 21 connected to the first connection port 8, It is necessary to provide both connection ports 8 and 10 apart from each other so that the modular plug 23 connected to the two connection ports 10 does not interfere in the front-rear direction, and the depth dimension D1 increases accordingly. On the other hand, in the present embodiment, the first connection port 8 and the second connection port 10 are shifted in the left-right direction so as not to overlap each other when viewed from the front-rear direction. The connection ports 8 and 10 can be provided so that the modular plug 21 to be connected and the modular plug 23 connected to the second connection port 10 overlap in the front-rear direction, and the depth dimension D1 (FIG. 1 (b) ))) Can be reduced.

  In the present embodiment, the inclination angle θ with respect to the horizontal direction of the plug connecting direction to the first connection port 8 is set to 25 degrees or more and 40 degrees or less.

  As described above, since the inclination angle θ is set to 25 degrees or more, the modular plug 21 connected to the first connection port 8 is compared with the case where the inclination angle θ is 0 degree or more and less than 25 degrees. The distance D2 to the rear end (see FIG. 3B) can be shortened. Therefore, a space for accommodating the modular plug 21 and the first signal line 20 is small, and it can be accommodated in a shallow switch box. Further, when the inclination angle θ is larger than 40 degrees, the modular plug 21 connected to the first connection port 8 is adjacent (lower side) when a plurality of modular jack outlets 1 are arranged in parallel with the mounting frame 30. There is a possibility of interfering with the modular jack outlet 1. On the other hand, in the present embodiment, since the inclination angle θ is set to 40 degrees or less, the modular connected to the first connection port 8 even when a plurality of modular jack outlets 1 are mounted close to each other in the vertical direction. A plurality of modular jack outlets 1 can be mounted side by side on the mounting frame 30 without the plug 21 interfering with the adjacent (lower) modular jack outlet 1.

  In the present embodiment, the first connection port 8 and the second connection port 10 are shifted in the left-right direction so as not to overlap each other when viewed from the front-rear direction, and the plug connection direction to the first connection port 8 The inclination angle θ with respect to the horizontal direction is set to 25 degrees or more and 40 degrees or less.

  Accordingly, a plurality of modular jack outlets 1 can be mounted side by side with respect to the mounting frame 30, and the space for storing the modular plug 21 and the first signal line 20 can be small, and can also be stored in a shallow switch box. Is possible.

  Further, in the case 2 of the modular jack outlet 1, it is also preferable that a hooking portion for hooking the jacket of the first signal line 20 connected to the first connection port 8 is provided in a portion housed in the embedding hole. .

  As a result, the bend radius of the first signal line 20 is managed to be equal to or greater than a predetermined value by hooking the hook of the predetermined length from the modular plug 21 connected to the terminal in the jacket of the first signal line 20. In addition, since the bending radius of the first signal line 20 is smaller than the allowable bending radius, it is possible to suppress deterioration in transmission characteristics.

DESCRIPTION OF SYMBOLS 1 Modular jack outlet 2 Body 3 Boss part 7 Inclined surface 8 1st connection port 9 1st contact pin 10 2nd connection port 11 2nd contact pin 20 1st signal line 22 2nd signal line 21 and 23 Modular plug 30 attachment Frame 50 Switch box

Claims (6)

  Using a mounting frame for an embedded wiring device, the apparatus includes a body that is attached to the construction surface in a state where a rear portion is housed in an embedded hole that is open to the construction surface. The part to be accommodated is provided with a first connection port into which a modular plug terminated with a first signal line wired on the back side of the construction surface is plugged and connected. A modular jack outlet characterized by being shifted from the center position in the left-right direction to the end of the body.   A second connection port to which a modular plug terminated with a second signal line is inserted and connected is provided on the front surface of the device body, and the first connection port is inserted and connected to the interior of the device body. The modular jack outlet according to claim 1, further comprising a conductive member that electrically connects the modular plug formed and the modular plug inserted and connected to the second connection port.   The said 1st connection port was provided in the direction where a modular plug is inserted and connected from back diagonally downward in the state where the above-mentioned body was attached to the construction side via the above-mentioned attachment frame, The modular jack outlet according to either 1 or 2.   The said 1st connection port and the said 2nd connection port are shifted and arrange | positioned in the left-right direction so that it may not mutually overlap seeing from the front-back direction, The one of Claim 1 thru | or 3 characterized by the above-mentioned. Modular jack outlet.   The inclination angle with respect to the horizontal direction of the plug connection direction to the first connection port is 25 degrees or more and 40 degrees or less in a state where the container is attached to the construction surface via the attachment frame. The modular jack outlet according to any one of claims 1 to 4.   The hook part which hooks the jacket of the said 1st signal wire | line connected to a said 1st connection port in the site | part accommodated in the said embedding hole in the said container is provided. 5. The modular jack outlet according to any one of 5 above.

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