JP2004259621A - Terminal plate assembly - Google Patents

Abstract

An object of the present invention is to provide a terminal plate assembly capable of improving the efficiency of a wiring operation.
A U-slit housing comprising a plurality of U-slit terminals arranged in parallel, a connector electrically connected to each of the U-slit terminals and arranged side by side so as to be displaced in a fitting direction; An external connector fitted to the connector in a terminal plate assembly that is arranged in multiple stages using a plurality of terminal plates having a through hole unit through which an electric wire passes through a terminal and held by a frame including a front plate The above problem is solved by having a connector shield that protects the protruding portion of the connector.
[Selection diagram] FIG.

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a terminal plate assembly, and more particularly, to a terminal plate assembly that can accommodate a plurality of communication lines.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a terminal plate has been used to relay or branch a communication line (electric wire) between devices having a communication function, such as a telephone and a computer. In particular, since a telephone station or the like needs to manage an enormous number of lines and terminals, it is necessary to use a terminal plate capable of arranging a plurality of communication lines. The lines are connected. Further, conventionally, there is a terminal plate assembly configured by assembling a plurality of terminal plates, and by using the terminal plate assembly, a plurality of terminal plates and a communication line can be managed (for example, See Patent Document 1.).
[0003]
Note that the terminal board assembly for a communication device set in the telephone office has a fixed mounting size on an MDF (Main Distribution Frame) on the office side, so that the number of communication lines increases with the conventional terminal board. I can't let it. However, in recent years, the number of communication lines has been increasing due to the spread of Asymmetric Digital Subscriber Line (ADSL) and the like. Therefore, it is necessary to increase the number of communication lines that can be accommodated in the terminal board to increase the density. Accordingly, the present applicant has proposed a terminal plate and a terminal plate assembly configured to be able to connect many communication lines and to easily perform a connection operation between a switch-side connector and a jumper line.
[0004]
Here, a terminal plate and a terminal plate assembly proposed by the present applicant will be described with reference to the drawings.
[0005]
FIG. 1 is a perspective view showing an example of a terminal plate. The terminal board 10 of FIG. 1 includes a printed wiring board 11 and a total of 32 U-slit terminals in which 16 U-slit terminals in one row, which are used as input line connection terminals, are arranged vertically in FIG. U-slit housing 12, frames 13-1, 13-2, communication port unit 14, semiconductor security element 15 provided for each U-slit terminal in U-slit housing 12, and exchange-side connector 16-1 , 16-2, and connectors 17-1, 17-2 with cables connected to the exchange-side connectors 16-1, 16-2, respectively.
[0006]
The semiconductor security element 15 is an element for preventing an overvoltage and an overcurrent that intrude from a communication line from flowing into communication equipment on the exchange side. For example, a bidirectional pnpn surge protection device, an avalanche diode, It is composed of zinc varistors. The terminal board 10 uses two switch-side connectors 16-1 and 16-2 to correspond to 16 communication lines, and the switch-side connectors 16-1 and 16-2 are connectors with cables. When the cables 17-1 and 17-2 are routed in the same direction, the cables are obstructed, so that the exchange-side connector 16 and the cable-attached connector 17 cannot be fitted to each other in a predetermined direction. The positions are shifted by an interval, and the fitting surfaces are arranged side by side so as to be stepped.
[0007]
Further, the connector with cable 17 has a connector tab 18, and the connector tab 18 is used at the time of attachment / detachment with the connector 16 on the exchange side. Here, a method of attaching and detaching the exchange-side connector 16 and the connector with cable 17 will be described. First, when attaching the connector 17 with a cable to the connector 16 on the exchange side, the concave and convex portions of the connector 17 with the cable and the connector 16 on the exchange side are fitted together. When the connector tab 18 is closed by being locked to the main body, the connector 17 with cable cannot be removed from the connector 16 on the exchange side, and the mounting is completed. When detaching, as shown in the cable with connector 17-2 and the connector tab 18-2 in FIG. 1, the connector tab 18 is opened and the connector with cable 17 is pulled out to be easily detached. it can.
[0008]
The printed wiring board 11 has two upper and lower terminals in the terminal board 10 shown in FIG. 1, and one is electrically connected to 16 U-slit terminals in one row by soldering. The communication port unit 14 is attached in a state sandwiched between the two printed wiring boards 11.
[0009]
The terminal board 10 is formed by holding the above-described printed circuit board 11, the exchange-side connector 16, the U-slit housing 12, and the wire opening unit 14 by frames 13-1 and 13-2.
[0010]
Here, the wiring port unit 14 of the terminal plate 10 will be described with reference to the drawings.
[0011]
FIG. 2 is a diagram illustrating an example of a line entrance unit. 2A shows a top view of the terminal plate, and FIG. 2B shows a right side view of the terminal plate. The U-slit housing 12 in FIG. 2A shows a top view in the right half and a cross-sectional view in the left half, and the black portion at the center shows the U-slits arranged in the U-slit housing 12. The terminals are shown.
[0012]
In FIG. 2, a broken line 21 is a partition wall for easily conducting an electric wire (jumper line) inserted from the wire passage 22 to a desired U slit. Further, protrusions 23 are formed at predetermined intervals on the insertion surface of the wire passage unit 14 where the jumper wires are inserted. The protrusions 23 are for identifying the wire passage 22. For example, by providing the projections 23 at intervals of, for example, four wiring openings, it is possible to prevent a mistake in the connection of the jumper wires of the worker and a mistake in the connection to the U slit terminal.
[0013]
The U-slit terminal provided in the U-slit housing 12 is soldered to the printed wiring board 11, and the exchange-side connector 16 is held in a state sandwiched between the two printed wiring boards 11, The terminals of the exchange-side connector 16 are soldered to the printed wiring board 11. As a result, the jumper line, which is the incoming line, is electrically connected to the exchange side connector 16 by connecting to the U slit terminal. The exchange-side connector 16 is used as an outgoing line connection terminal.
[0014]
By using the terminal plate 10, relaying between a jumper line as a communication line and a cable on the exchange side can be easily performed, and the number of accommodated lines can be reduced and the density can be increased.
[0015]
Furthermore, in telephone offices and the like, in order to collectively manage terminal boards in a certain area, building, or company, a terminal board assembly in which a plurality of terminal boards are stacked in multiple stages accommodates more lines and collectively. Managing.
[0016]
In addition, the terminal plate assembly is provided with characters or symbols so that it can be classified into an area, a building, a company name, or the like so that an operator can easily understand which area the line is connected to by the assembly. For example, a name strip is attached to the terminal plate assembly to enable identification.
[0017]
Here, the above-described terminal plate assembly will be described with reference to the drawings.
[0018]
FIG. 3 is a perspective view showing an example of the terminal plate assembly.
[0019]
As shown in FIG. 3, the terminal plate assembly 30 includes an MTG (MOUNTING) 31, a front plate 32, a straightening portion 33 for bundled jumper wires used for each terminal plate, and a straightening portion 33. It has a strip base 34 and an MDF mounting portion 35 having a bolt for mounting to the MDF. Further, the terminal plate assembly 30 uses twelve terminal plates 10 described above and holds them in a multi-stage arrangement by a frame composed of the MTG 31 and the front plate 32 so as to face the same surface, respectively, so that 192 lines are provided. Is formed to be able to accommodate the terminal plate assembly. The front plate 32 may be integrated with the MTG 31 or may be separate from the MTG 31.
[0020]
Further, the indicated strip base 34 is formed in a U-shape so as to sandwich a pair of left and right front plates 32 formed on the side of the U slit housing 12 of the terminal boards 10 arranged in multiple stages as shown in FIG. Further, since a mounting projection is formed on the inside of the tip end of the name strip base 34, the mounting projection is formed on the name plate mounting opening 36 formed on the front plate 32. It can be attached by fitting it into In FIG. 3, the openings 36 for mounting the name strips are formed in the upper and lower stages of the multi-stacked terminal plate because the terminal plate assembly 30 is attached to the MDF when the line opening unit is installed. This is so that when the connector side with the cable is mounted on the lower side and the connector side with the cable is on the lower side, the name strip base 34 can be mounted on the left side when viewed from the U slit housing 12 side. .
[0021]
The terminal plate and the terminal plate assembly shown in FIGS. 1 to 3 enable miniaturization and high-density of a terminal plate for relaying or branching a large number of communication lines, while maintaining the dimensions for mounting on the MDF. It can accommodate many communication lines and can be managed simultaneously.
[0022]
[Patent Document 1]
Published Japanese Utility Model Application No. 3-54328
[Problems to be solved by the invention]
By the way, when performing the wiring work using the terminal plate 10 and the terminal plate assembly 30 shown in FIGS. 1 to 3 described above, the worker inserts a jumper wire from the wire opening unit 14 and makes the U slit housing 12 side. After connecting the U-slit terminals, the connecting operation between the exchange-side connector 16 and the connector with cable 17 is performed to perform the connecting operation between the incoming line and the outgoing line. Here, when the worker extends his / her hand in the direction of arrow a in FIG. 3 from the U-slit housing 12 side, the worker's hand or the sleeve of the clothes And the like, and the connector tab 18 may be opened.
[0024]
As described above, in the state where the connector tab 18 is open, the connector with cable 17 can be easily removed, so that the connector with cable 17 comes off without the worker noticing, resulting in poor connection of the line. . Further, there is a case where the fitting between the exchange-side connector 16 and the connector with cable 17 is loosened. In this case, a load is applied to the terminal plate itself, which causes a failure.
[0025]
Further, conventionally, the name strip base 34 is installed at the position shown in FIG. 3, but when the work of connecting the U slit terminal and the jumper wire to the terminal board at the installed position is performed, Since the strip base 34 covers the U-slit housing of the upper terminal board, it is necessary to remove the indicated strip 34 from the front plate 32, connect the jumper wire to the U-slit terminal, and then re-attach the work. It becomes. Because of this work, there is a high possibility that the signature strip 34 will be lost, and the work of attaching and detaching the signature strip 34 will lead to a reduction in the efficiency of the wiring work.
[0026]
The present invention has been made in consideration of the above-described problems, and has as its object to provide a terminal plate assembly that can improve the efficiency of a worker's connection work.
[0027]
[Means for Solving the Problems]
In order to solve the above problems, the present invention employs means for solving the problems having the following features.
[0028]
According to the invention described in claim 1, a U-slit housing composed of a plurality of U-slit terminals arranged in parallel is electrically connected to each of the U-slit terminals, and is arranged side by side with a position shifted in a fitting direction. A terminal plate assembly which is arranged in multiple stages using a plurality of terminal plates each having a connector and a wire opening unit for passing an electric wire to the U-slit terminal, and held and assembled by a frame including a front plate, wherein the connector And a connector shield for protecting the protruding portion of the external connector fitted to the connector.
[0029]
According to the first aspect of the present invention, since the external connector does not come off due to contact with the protruding portion generated by connecting the external connector, and the fitting with the external connector does not loosen, the connection failure is poor. Can be prevented. Thereby, the worker can easily perform the connection work, and the work efficiency can be improved.
[0030]
The invention described in claim 2 is characterized in that the connector shield is formed so as to be inclined from the front plate toward the protrusion.
[0031]
According to the second aspect of the present invention, it is possible to prevent the clothes and the like of the worker from being caught on the connector shield. Thereby, the worker can easily perform the connection work, and the work efficiency can be improved.
[0032]
The invention described in claim 3 is a U-slit housing composed of a plurality of U-slit terminals arranged in parallel, a connector electrically connected to each of the U-slit terminals, and an electric wire passing through the U-slit terminal. A terminal board having a communication port unit to be connected, a name strip for identifying the terminal board, and a front plate to which the name strip is attached, and a plurality of frames including the front plate. In the terminal plate assembly in which the terminal plates are arranged and held in multiple stages, the front plate includes a sliding portion that slides the named strip base, and a locking portion that locks the named strip base. And a stop portion.
[0033]
According to the third aspect of the present invention, it is possible to connect the electric wire (jumper wire) to the U-slit terminal of the terminal plate without removing the name strip from the terminal plate assembly. Thereby, the work efficiency of the connection work can be improved. Further, the slidable indication strip base can be fixed and stabilized by the locking portion.
[0034]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention prevents a worker from unintentionally coming into contact with a connector tab of a connector with a cable that is already fitted to an exchange-side connector of a terminal plate in a terminal plate assembly formed by a plurality of terminal plates. Therefore, by providing a connector shield on the connector side of the exchange to prevent contact with the protruding part of the connector with cable, the connector with cable can be protected even when an operator works from the U slit housing side. In addition, it is possible to prevent the occurrence of connection failure due to disconnection of the connector with a cable. This makes it easy for the worker to perform the connection work, thereby improving the work efficiency.
[0035]
In addition, when connecting an electric wire (jumper wire) to the U-slit terminal of the terminal plate in the terminal plate assembly, an end portion of the named strip can be connected without removing the named strip. Is provided with a sliding portion in parallel with the U-slit housing surface so that sliding movement (sliding) is possible on the front plate, and furthermore, a locking portion so that the designated strip is locked at a predetermined position. By noting, the sign strip can be stably slid by the locking portion without removing the sign strip at the time of wire connection work, so that the efficiency of the worker's wire connection work can be improved. Can be improved.
[0036]
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 4 is a top view of an example of the terminal plate assembly according to the present invention.
[0037]
The terminal plate assembly 40 of FIG. 4 is configured to include an MTG 41, a U-slit housing 42, a wire opening unit 43, a straightening portion 44, an MDF mounting portion 45, and a connector shield 46. It is assumed that the cable-equipped connector 47 is fitted to the exchange-side connector of the terminal plate. The connector with cable 47 has a connector tab 48. Here, the configuration of the terminal plate in FIG. 4 is the same as the configuration of the terminal plate shown in FIGS. 1 and 2, and thus description thereof will be omitted.
[0038]
As shown in FIG. 4, by having the connector shield 46, for example, when an operator moves his / her hand or body in the direction of arrow a in FIG. Since -1 and 47-2 do not protrude, hands and sleeves of clothes do not come in contact against intention. For this reason, especially, the connector tab 48-2 is not opened by the operator without noticing, and the connection failure caused by the detachment of the connector with cable 47-2 or the loose fitting with the exchange side connector is prevented. can do. In addition, the worker can efficiently perform the connection work without worrying about the protruding portion of the connector with cable 47 even when moving his / her hand or body.
[0039]
Further, as shown in FIG. 4, the connector shield 46 is formed with an inclination so as to protect the protruding portion of the connector with cable 47, so that the hand or body of the worker can move smoothly in the direction of arrow a. Will be possible.
[0040]
Next, a terminal plate assembly according to the present invention will be described with reference to a perspective view. Note that the same main components as those in FIG. 4 have the same names and reference numerals.
[0041]
FIG. 5 is a perspective view of an example of the terminal plate assembly according to the present invention. The terminal plate assembly 50 of FIG. 5 is configured to include an MTG 41, a U-slit housing 42, a straightening section 44, an MDF mounting section 45, a connector shield 46, and a front plate 51. In the terminal plate assembly 50, the terminal plates shown in FIGS. 1 and 2 are stacked in 12 rows by the MTG 41 and the front plate 51 to form a terminal plate assembly accommodating 192 lines. Further, a connector 47 with a cable (a cable is not shown) is connected to the exchange-side connector of each terminal board, and the connector 47 with a cable is provided with a connector tab 48.
[0042]
As shown in FIG. 5, the connector tabs 48 of all the connectors 47 with cables are formed integrally by protecting the protrusions of all the connectors 47 with cables with the connector shields 46 stacked in multiple stages. It is possible to prevent the connection failure caused by the disconnection of the connector with cable 47 or the loosening of the connection with the connector on the exchange side without preventing the operator from opening without being aware.
[0043]
The connector shield 46 may be formed integrally with the front plate 51, or the connector shield 46 may be attached to the front plate 51 with screws or the like.
[0044]
Further, the terminal plate assembly 50 of the present invention has a locking projection 53 (locking portion) for locking the indicated strip 52 on the U-slit housing 42 side of the pair of front plates 51. A rectangular opening 54 (sliding portion) is formed in a rectangular shape so that the indicated strip 52 can slide (slide) in parallel with the U-slit housing surface. Further, the indicated strip base 52 has a locking opening 55 for engaging with the locking projection 53. As a result, the sliding operation can be performed while the name strip 52 is attached to the front plate 51, and the connection work between the U-slit terminals and the jumper wires of all the terminal boards connected in multiple stages can be performed without the need for attachment / detachment work. It can be done easily.
[0045]
Here, the locking projections 53 and the rectangular openings 54 formed on the front plate 51 are formed on the upper and lower stages of the terminal board formed by multi-stacking in the perspective view in FIG. When the terminal plate assembly 50 according to the present invention is attached to the MDF by the MDF attaching portion 45, when the terminal opening side is attached to the upper surface and the connector connection surface with the cable is attached to the lower surface, This is because the one stand 52 can be attached to the left side when viewed from the U slit housing 42 surface side.
[0046]
The positions of the locking projections 53 and the rectangular openings 54 formed on the front plate 51 are not limited to the above in the present invention. It is only necessary to be able to move, and also to be able to lock the indicated strip 52 by the locking projection 53, and the front plate 51 has at least one locking projection 53 and at least one rectangular opening 54. What is necessary is just to be formed. In addition, the display strip 52 can be detached from the front plate 51.
[0047]
Here, the state of engagement between the indicated strip base 52 and the front plate 51 will be described with reference to the drawings. FIG. 6 is a view for explaining a state of engagement between the name strip and the front plate in the present invention. Here, FIG. 6A shows a state of sliding of the name strip base 52, and FIG. 6B shows a state in which the name strip base is locked by the locking projection. ing.
[0048]
As shown in FIG. 6, the sliding movement can be performed in a portion where the locking projection 53 (locking portion) is not provided, whereby the U-slit housing is covered with the name strip base 52. In the connection work between the jumper wire and the U-slit terminal on the terminal plate that has been used, in particular, the terminal plate positioned at the locking projection 53, the indicated strip 52 is slid as shown in FIG. By moving (sliding), the connection work can be performed efficiently without removing the name strip base 52. Further, at the end of the connection work, as shown in FIG. 6B, the sliding is performed so that the locking projection 53 is engaged with the locking opening 55 of the display strip base 52 by sliding. The strip base 52 can be easily locked.
[0049]
Next, the state of locking at the locking projection 53 provided on the front plate 51 and the locking opening 55 provided on the designated strip 52 will be described with reference to the drawings. FIG. 7 is an enlarged view showing an example of the locking portion of the name strip.
A locking opening 55 for locking to the locking projection 53 of the front plate 51, and a mark formed inside the end of the indication strip 52 so as to be inserted and slid into the rectangular opening 54. It has a reference piece base projection 71 and a slide groove 72 formed so that the sliding movement of the name reference piece base 52 and the locking with the locking opening 55 can be reliably performed. Thereby, the stability of the name strip base 52 can be improved.
[0050]
Note that the same effect can be obtained by providing a locking recess corresponding to the height of the projection of the locking projection 53 instead of the locking opening 55 in the indicated strip base 52 and engaging the same. Can be obtained. Further, in the present invention, the formation contents of the locking projection 53 on the front plate 51 and the locking opening 55 and the slide groove 72 of the name strip base 52 are not limited to the above-described contents. May be reversed.
[0051]
Next, how the terminal plate assembly 50 according to the present invention is attached to the MDF will be described with reference to the drawings. FIG. 8 is a view showing an example of a state in which the terminal plate assembly according to the present invention is attached to the MDF. Since the terminal plate assembly 50 of FIG. 8 is the same as that of FIG. 5, the description of the terminal plate and the main components of the terminal plate assembly will be omitted.
[0052]
A mounting frame 81 for mounting the terminal plate assembly 50 and a mounting plate 82 are provided on the MDF side, so that the plurality of terminal plate assemblies 50 can be mounted on the mounting frame 81 in tandem. Here, when the terminal plate assembly 50 is mounted on the mounting plate 82, the bolts 83 provided on the MDF mounting portion 45 provided on the terminal plate assembly 50 are passed through predetermined holes of the mounting plate 82, and from the opposite side. By tightening with the nut 84, the terminal plate assembly 50 can be installed on the MDF.
[0053]
In this specification, the terminal plate assembly in which the number of terminal plates in the terminal plate assembly is arranged and held as 12 steps has been described. However, the present invention is not limited to this. For example, 16 terminal plates are provided. As a result, a terminal plate assembly capable of accommodating 256 lines can be formed by arranging and holding a multi-tiered structure with a frame body composed of an MTG and a front plate.
[0054]
As described above, according to the present invention, in a terminal plate assembly formed by a plurality of terminal plates, an operator unintentionally inserts a connector tab of a connector with a cable that is already fitted to an exchange-side connector of the terminal plate. A connector shield that prevents contact with the protruding part of the connector with cable is provided on the connector side of the exchange to prevent contact with the cable. Can be protected, and it is possible to prevent the occurrence of connection failure due to disconnection of the connector with cable or the like. Thereby, the efficiency of the connection work of the worker can be improved.
[0055]
In addition, when connecting an electric wire (jumper wire) to the U-slit terminal of the terminal plate in the terminal plate assembly, in order to perform the connection work without removing the indicated strip, the end of the indicated strip is mounted. A sliding portion is provided on the front plate so that the portion can slide (slide) on the front plate, and further, a locking portion is provided so that the designated strip can be locked at a predetermined position. By doing so, it is possible to stabilize the slidable indication strip base by the locking portion without removing the indication strip base during the connection work, thereby improving the efficiency of the worker's connection work. Can be.
[0056]
It should be noted that the present invention is not limited to the specifically disclosed embodiments, and various modifications and embodiments can be considered without departing from the scope of the claimed invention.
[0057]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a terminal plate assembly that can improve the efficiency of a worker's connection work.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a terminal plate.
FIG. 2 is a diagram for explaining a line entrance unit.
FIG. 3 is a perspective view showing an example of a terminal plate assembly.
FIG. 4 is a top view of an example of a terminal plate assembly according to the present invention.
FIG. 5 is a perspective view of an example of a terminal plate assembly according to the present invention.
FIG. 6 is a view for explaining a state of connection between a name strip and a front plate according to the present invention.
FIG. 7 is an enlarged view showing an example of a locking portion of the name strip.
FIG. 8 is a view showing an example of a state in which the terminal plate assembly according to the present invention is attached to the MDF.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Terminal board 11 Printed wiring board 12, 42 U slit housing 13 Frame 14, 43 Communication port unit 15 Semiconductor security element 16 Exchanger side connector 17, 47 Connector with cable 18, 48 Connector tab 21 Separator wall 22 Line port 23 Projection 30, 40, 50 Terminal board assembly 31, 41 MTG
32, 51 Front plate 33, 44 Straightening part 34, 52 Named strip stand 35, 45 MDF mounting part 36 Named strip stand mounting opening 46 Connector shield 53 Locking projection (locking part)
54 rectangular opening (sliding part)
55 Opening for Locking 71 Projection of Name Strip Base 72 Sliding Groove 81 Mounting Frame 82 Mounting Plate 83 Bolt 84 Nut

Claims (3)

A U-slit housing composed of a plurality of U-slit terminals arranged in parallel, a connector electrically connected to each of the U-slit terminals and arranged side by side with a position shifted with respect to a fitting direction, and an electric wire connected to the U-slit terminal. In a terminal plate assembly that is arranged in multiple stages by using a plurality of terminal plates having a through hole unit through which a wire passes and is held by a frame body including a front plate,
A terminal plate assembly having a connector shield for protecting a projection of an external connector fitted to the connector. The connector shield,
The terminal plate assembly according to claim 1, wherein the terminal plate assembly is formed to be inclined from the front plate toward the protrusion. A terminal plate having a U-slit housing composed of a plurality of U-slit terminals arranged in parallel, a connector electrically connected to each of the U-slit terminals, and a wire opening unit for passing electric wires through the U-slit terminals. When,
Name strip to identify the terminal board,
A terminal plate having the front plate to which the name strip is attached, and a terminal plate assembly in which a plurality of the terminal plates are arranged and held in multiple stages by a frame including the front plate;
The terminal plate assembly according to claim 1, wherein the front plate includes a sliding portion that slides the name bar and a locking portion that locks the name bar.

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