JP2003179952A - Protector sub-module and protector for communication equipment using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protector sub-module in which the contact terminal of a test spring unit can be exactly located in each contact chamber when assembling a frame. <P>SOLUTION: The protector sub-module is provided with two printed wiring boards 1A and 1B mounting a plurality of U slit terminals 9 located in parallel and used as terminals for in line connection, a protecting element 4 electrically connected to the respective U slit terminals 9, and a test spring unit 3 electrically connected to the respective U slit terminals 9 for cutting a communication line by inserting a test plug to a plurality of contact couples; a contact chamber 53 provided corresponding to the respective contact couples of the test spring unit 3; and a frame 151 having a plug insertion hole 54 for inserting the test plug from the outside to the respective contact coupled located in the contact chamber 53. The frame 151 has guide ribs 60 for guiding the respective contact couples of the test spring unit 3 to the contact chamber 53 in the case of assembly. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protector sub-module for preventing an overvoltage / overcurrent from entering a communication line from flowing into a communication device, and a protector for a communication device using the same.

[0002]

2. Description of the Related Art Conventionally, in order to prevent an overvoltage / overcurrent from entering a communication line from flowing into a communication device,
A communication device protector is set in the central office. This protector for communication equipment is constructed by stacking protector sub-modules in multiple stages.

FIG. 4 is a diagram for explaining this protector sub-module. (A) is a plan view, (b) is a rear view, (c) is a front view, and (d) is a left side surface. In the figure, (e) is a right side view and (f) is a bottom view. Figure 4
As shown in FIG. 1, 100 is a protector sub-module, 1A,
1B is a printed wiring board, 2 is a printed wiring board 1A, 1B
It is a contact terminal of the test bullet unit 3 soldered to. 4n are security elements, 5 and 6 are front side wiring patterns and back side wiring patterns formed on the printed wiring boards 1A and 1B, and 7 and 8 are formed on the printed wiring boards 1A and 1B, respectively. The front side ground pattern, the back side ground pattern, 9 are U-slit terminals on the subscriber side, and 10 is a terminal group on the exchange side. Also, 12 is U
A slit housing, 13 is a passage opening unit, 14 is an earth terminal, 151 and 152 are frames, and 16A and 16B are exchange side connectors. With these parts, the protector sub-module 100 accommodating 16 lines is formed.

The test ammunition unit 3 is for inserting a test plug (not shown) to open the contact and disconnect the communication line. Security elements 4a, 4b, ..., 4n
Is to prevent the breakdown of the outgoing line on the exchange side due to a surge voltage or the like.
Is soldered to the printed wiring board 1 at an adjacent position. The wiring patterns 5 and 6 are for electrically connecting the test ammunition unit 3 and the terminals on the exchange side.

The U-slit terminal 9 is used as an incoming line connection terminal, is soldered to a position adjacent to the security element 4, and is electrically connected to the security element 4. The U-slit housing 12 is configured such that a large number of U-slit terminals 9 are arranged inside. The passage unit 13 is for aligning jumper wires between the two printed wiring boards 1A and 1B. This passage opening unit 13 is attached by sandwiching it between two printed wiring boards 1A and 1B in a sandwich shape, and corresponds to each U-slit terminal 9 for each line. Although not shown, the passage opening unit 13 includes a passage opening unit case and a passage opening unit cover. The exchange side connectors 16A and 16B are electrically connected to the test ammunition unit 3 and are used as output line connection terminals on the exchange side. Also, the exchange side connector 1
6A and 16B are held in a state of being sandwiched between two printed wiring boards 1A and 1B, and the terminal group of the exchange side connector 16 is soldered to the printed wiring boards 1A and 1B.

FIG. 5 is a diagram for explaining a conventional frame 151. FIG. 5A is a plan view, FIG. 5B is a front view, FIG. 5C is a bottom view, and FIG. The views are shown respectively. As shown in FIG. 5, 151 is a frame, 5
Reference numeral 1 denotes a connecting piece for connecting to the U-slit housing 12 shown in FIG. Further, 52 is a connecting piece for connecting to the exchange side connector 16A shown in FIG.
Is a contact chamber provided corresponding to each contact pair of the test ammunition unit 3, and 54 is a plug insertion hole for externally inserting a test plug into the contact pair arranged in the contact chamber 53. . As shown in FIG. 3B, the contact chamber 53 and the plug insertion hole 54 are formed correspondingly.

FIG. 6 shows a contact chamber 5 of a conventional frame 151.
FIG. 3 is a view showing a state in which a contact pair 31 of the test ammunition unit 3 is incorporated in 3. Further, FIG. 7 is a diagram for explaining a problem of the conventional frame. As shown in FIG.
Reference numeral 2 is a contact terminal of the test bullet unit 3, and 3 is a test bullet unit soldered to the printed wiring boards 1A and 1B. The contact terminals 2 of the test ammunition unit 3 form a pair of contact points. 3A indicates a test ammunition unit mounted on the printed wiring board 1A, and 3B indicates a test ammunition unit mounted on the printed wiring board 1B. 1
Reference numeral 51 is a frame, 53 is a contact chamber, and 54 is a plug insertion hole.

[0008]

However, when assembled, the test ammunition unit 3 is placed in the contact chamber 53 of the frame 151.
When arranging each contact pair of the
There is a case where it is caught by a partition (central portion) 55 that partitions 3 (arrow A). When the frame 151 is assembled in this state, as shown by an arrow B in FIG. 7B, one contact terminal 2 enters the other contact chamber 53 and comes into contact with the other contact terminal 2 and the printed wiring board 1A ( A line) and printed wiring board 1
There is a problem that a short circuit occurs between B (B line).

Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a protector sub-module capable of accurately arranging the contact terminals of the test ammunition unit in each contact chamber when the frame is assembled.

[0010]

In order to achieve the above object, the protector sub-module according to claim 1 is a security device for preventing an overvoltage / overcurrent from entering a communication line from flowing into a communication device. In the device sub-module, a plurality of U-slit terminals that are used as terminals for connecting incoming lines and are arranged in parallel, a security element electrically connected to each U-slit terminal, and electrically connected to each U-slit terminal. Two printed wiring boards equipped with a test bullet unit that inserts test plugs into multiple contact pairs to disconnect the communication line, and a contact chamber provided for each contact pair of the test bullet unit A frame having a plug insertion hole for externally inserting a test plug into each contact pair arranged in the contact chamber, and the frame connects each contact pair of the test ammunition unit during assembly. It is characterized in further comprising a guide rib for guiding the chamber.

The protector sub-module according to claim 2 is the protector sub-module according to claim 1,
The guide rib is characterized in that it is provided between the contact chambers and is formed of a plate that enters between the contact pairs.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. First, the protector sub-module to which the present invention is applied will be described with reference to FIG. Figure 4
, (A) is a plan view, (b) is a rear view, (c) is a front view, (d) is a left side view, (e) is a right side view, and (f).
Are bottom views, respectively.

As shown in FIG. 4, 100 is a protector submodule, 1A and 1B of FIG. 4 are printed wiring boards, and 2 is a contact terminal of a test ammunition unit 3 soldered to the printed wiring boards 1A and 1B. is there. 4n are security elements, 5 and 6 are printed wiring boards 1A and 1A, respectively.
Front and back wiring patterns formed on B, 7 and 8 are front and back ground patterns formed on the printed wiring boards 1A and 1B, respectively, 9 is a U-slit terminal on the subscriber side, and 10 is It is a terminal group on the exchange side.

Although not described in detail, the protector sub-module 100 is composed of two types of printed wiring boards, which are different from each other, that is, a printed wiring board 1A and a printed wiring board 1B. Printed wiring board 1A, printed wiring board 1B
Are both double-sided through-hole substrates, and the mounting surface of the security element 4 is the (A) surface and the back surface side is the (B) surface.

Further, 12 is a U-slit housing, 13
Is a passage unit, 14 is an earth terminal, 151,
Reference numeral 152 is a frame, and 16A and 16B are exchange side connectors. With these parts, the protector sub-module 100 accommodating 16 lines is formed. Here, the test ammunition unit 3 is for inserting a test plug (not shown) to open the contact and disconnect the communication line.

The security elements 4a, 4b, ..., 4n are for preventing the breakdown of the outgoing line on the exchange side due to a surge voltage or the like, and a printed wiring is provided adjacent to the U-slit terminal 9. Soldered to the board 1. The wiring patterns 5 and 6 electrically connect the test ammunition unit 3 and the terminals on the exchange side. U-slit terminal 9 is
It is used as an incoming line connection terminal, is soldered to a position adjacent to the security element 4, and is electrically connected to the security element 4.

The U-slit housing 12 is constructed so that the U-slit terminal 9 is arranged therein. In addition, the passage unit 13 includes two printed wiring boards 1A and 1B.
This is for adjusting the jumper wire between the two. This passage unit 13 includes two printed wiring boards 1A and 1A.
It is attached by sandwiching it between B and corresponding to each U-slit terminal 9 for each line. Although not shown, the passage opening unit 13 includes a passage opening unit case and a passage opening unit cover.

The exchange side connectors 16A and 16B are electrically connected to the test ammunition unit 3 and are used as output line connection terminals on the exchange side. Also, the exchange side connector 1
6A and 16B are held in a state of being sandwiched between two printed wiring boards 1A and 1B, and the terminals of this exchange side connector 16 are soldered to the printed wiring boards 1A and 1B. Further, in FIG. 4, two exchange side connectors are provided in order to correspond to 16 communication lines. U-slit housing 12, frame 151, frame 152
Is a resin molded product and is assembled so as to surround two printed wiring boards 1.
Is formed.

FIG. 1 is a view showing a state in which the test ammunition unit 3 is incorporated in the frame 1551. Also, FIG.
4A and 4B are views for explaining the frame 151. FIG. 7A is a plan view, FIG. 7B is a front view, and FIG.
(D) has each shown the right view. As shown in FIG. 2, 151 is a frame, 51 is a connecting piece for connecting to the U-slit housing 12 shown in FIG. 4, and 52 is a connecting piece.
A connecting piece for connecting to the exchange side connector 16A shown by, 53 is a contact chamber provided corresponding to each contact pair of the test ammunition unit 3, and 54 is a contact pair arranged in this contact chamber 53. The plug insertion holes for inserting the test plugs from the outside are respectively shown.

As shown in FIG. 1, 2 is a contact terminal of the test bullet unit 3 and 3 is a test bullet unit soldered to the printed wiring boards 1A and 1B. Test ammunition unit 3
A pair of contact points is formed by the contact terminal 2 of. Also,
3A shows a test bullet unit mounted on the printed wiring board 1A shown in FIG. 4, and 3B shows a test bullet unit shown on the printed wiring board 1B shown in FIG.
Reference numeral 151 is a frame, 53 is a contact chamber, and 54 is a plug insertion hole. The contact chamber 53 has a plug insertion hole 5
It is formed corresponding to 4.

Further, as shown in FIG. 1 and FIG.
Reference numeral 0 is a guide rib integrally formed with the frame 151 and for guiding each contact pair of the test ammunition units 3A and 3B to each contact chamber 53 during assembly. The guide rib is a plate which is provided between the contact chambers 53 arranged in two rows and which is inserted between the contact pairs.

At the time of assembly, when arranging each contact pair of the test ammunition unit 3 in each contact chamber 53 of the frame 151, the guide rib 60 is provided on the partition for partitioning each contact chamber 53, so that the contact terminals 2 is guided to each contact chamber 53 by this guide rib 60. As a result, the contact terminal 2, which has been a problem in the past, is caught by the partition, and the one contact terminal 2
Can enter the other contact chamber 53 and come into contact with the other contact terminal 2, thereby solving the problem that the printed wiring board 1A (A line) and the printed wiring board 1B (B line) are short-circuited. it can.

FIG. 3 is a diagram showing a protector 101 for communication equipment using the protector submodule according to the present embodiment. As shown in FIG. 3, 16 protector sub-modules are stacked to form an MTG (MOUNTING) 1
7, the side plate 18, the front stopper 19, the rectifying plate 20, the index holder 21, and the marking plate 22 are attached and assembled to form the communication device protector 101 that accommodates 256 lines.

Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the specific embodiments, and various modifications are possible within the scope of the gist of the present invention described in the claims. Can be modified and changed.

[0025]

As is apparent from the above detailed description, according to the present invention, there is provided a protector sub-module capable of accurately disposing the contact terminals of the test ammunition unit in each contact chamber when the frame is assembled. The purpose is to

[Brief description of drawings]

FIG. 1 is a view showing a state in which a test ammunition unit is incorporated in a frame according to the present embodiment.

FIG. 2 is a diagram for explaining a frame according to the present embodiment.

FIG. 3 is a diagram showing a communication device protector according to the present exemplary embodiment.

FIG. 4 is a diagram for explaining a protector sub-module.

FIG. 5 is a diagram for explaining a conventional frame.

FIG. 6 is a view showing a state in which a test bullet unit is incorporated in a conventional frame.

FIG. 7 is a diagram for explaining a problem of a conventional frame.

[Explanation of symbols]

1A, 1B Printed wiring board 3 Test ammunition unit 4 Security element 9 U slit terminal 53 contact room 54 Plug insertion hole 60 guide ribs

Claims (3)

[Claims] 1. A protector sub-module for preventing an overvoltage / overcurrent from entering from a communication line from flowing into a communication device, and a plurality of U-slit terminals which are used as terminals for connecting an incoming line and are arranged in parallel, A security element electrically connected to each U-slit terminal and a test ammunition unit electrically connected to each U-slit terminal and inserting test plugs into a plurality of contact pairs to disconnect communication lines. And two printed wiring boards, a contact chamber provided corresponding to each of the contact pairs of the test bullet unit, and the test from the outside with respect to each of the contact pairs arranged in the contact chamber. A frame having a plug insertion hole for inserting a plug, the frame having a guide rib for guiding each of the contact pairs of the test ammunition unit to the contact chamber during assembly. A protector sub-module characterized by the above. 2. The protector sub-module according to claim 1, wherein the guide rib comprises a plate provided between the contact chambers and inserted between the contact pairs. 3. A protector for communication equipment, which uses the protector sub-module according to claim 1.