JPH054655U - Telephone relay terminal board protector module - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] It is connected to a telephone relay terminal board to prevent overvoltage and overcurrent from intruding into the communication line due to induction or corrosion, etc. from flowing into the communication equipment. [Structure] Two pairs of a required number of connecting pieces 4 and an earth plate 5
Are integrated by insert molding using a heat resistant synthetic resin. The connection pieces 4 and the earth plate 5 are soldered a and b with the overvoltage / overcurrent protection element 6 in the connection concave holes 9 and 10 provided in the synthetic resin substrate 7, and the connection pieces 4 ... A projecting piece 4b for inserting and connecting to the U-slit terminal 3 of the telephone relay terminal board 2 is provided at. [Effect] The U-slit terminal 3 which the telephone relay terminal board 2 does not use can be used for connection. Since the telephone relay terminal board 2 does not have a separate contact for connection, the structure is simple and the cost is low. Since the insertion piece 4b of the connection piece 4 is inserted into the U-slit terminal 3, the attachment / detachment is easy.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a protector module applied to a telephone relay terminal board.

[0002]

[Prior Art]

 In order to prevent the danger caused by the overvoltage and overcurrent that have conventionally entered the telephone communication line due to lightning strikes or intrusion, etc., the telephone relay terminal board should be protected. It has been implemented to connect a device (overvoltage, overcurrent protection device).

[0003]

[Problems to be solved by the device]

 However, since this type of conventional protector is provided with a dedicated connection mechanism (contact) for connecting to the telephone relay terminal board, the configuration of both is complicated and the cost is high. Yes, it is a problem to be solved.

The present invention has been made in view of the above problems of the above-mentioned conventional techniques. That is, in the known telephone relay terminal board, one side or a part of the U-slit terminal may not be used. Therefore, it was devised focusing on the effective use of this, and existing telephone relay terminal boards can be easily connected to necessary parts (terminals) as necessary, and overvoltage and overcurrent It is an object of the present invention to provide a protector module for a telephone relay terminal board that can prevent the danger caused by the above.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, a protector module for a telephone relay terminal board of the present invention comprises a required number of two pairs of connecting pieces, and a grounding board common to each of the connecting pieces. Insulation molding is used to integrate them, and an overvoltage and overcurrent protection element is provided on this synthetic resin substrate by connecting it to each of the connection pieces and the ground plate, and to each connection piece a telephone relay terminal. It is characterized in that a plug-in piece for connecting to the U-slit terminal of the plate is projected.

[0006]

[Action]

 The protector module of the present invention is attached to the side of the telephone relay terminal board by inserting the connecting piece of the connecting piece into the U-slit terminal on one side (including a part thereof) of the telephone relay terminal board. The ground plate is connected to a mounting panel (made of metal), and the mounting panel is grounded. For the above-mentioned ground plate and mounting panel, connect each lug terminal at the end of the lead wire to the ground plate and the mounting panel by screwing them together, or connect them to the ground plate. Connect the mounting panel with screws. Further, connecting leg pieces having a spring property are integrally formed on the ground plate with a metal elastic material, and the connecting leg pieces are connected by being pressed against the mounting panel by the applied spring force. The portions of the above-mentioned ground plate extending from both ends of the synthetic resin substrate are formed into a substantially U-shaped planar holding portion having spring properties, and the holding portion holds both sides of the telephone relay terminal board. By wearing it, the protector module of the present invention is held by the telephone relay terminal board.

When an overvoltage or an overcurrent enters the communication line due to induction or contamination, the overvoltage, overcurrent protection element, ground plate, and ground connected to the U-slit terminal of the telephone relay terminal board It flows to the attached mounting panel to stabilize the communication equipment (telephone exchange) at the same zero potential as the ground, and at the same time prevent dangers due to overvoltage and overcurrent.

[0008]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 (A) is a perspective view in which the protector module of the present invention and a telephone relay terminal board are partially cut away, and FIG. 1 (B) is a protector module connected to the telephone relay terminal board. The side view of the state which carried out is shown. As shown in FIGS. 1 (A) and 1 (B) to FIG. 3, the protector module 1 of the present invention is inserted into the wire holding slit 3a of the U slit terminal 3 ... of the telephone relay terminal plate 2. .. and a strip-shaped ground plate 5 common to each of the connection pieces 4 ... Connected by using a heat-resistant synthetic resin. They are integrated by molding, and are configured by connecting overvoltage and overcurrent protection elements 6 (semiconductor elements) to each connection piece 4 and the ground plate 5.

As shown in FIG. 4 (A), each of the connection pieces 4 ... A metal substrate 4a and an insertion piece 4b formed by bending one side of the upper half of the substrate 4a at a right angle. The base parts of the board 4a and the insert piece 4b are embedded and held in the board 7 made of heat-resistant synthetic resin as shown in FIG. 3 from the inner surface of the board 7 and the tip of each insert piece 4b. Is projectingly provided so that it can be inserted into the slit 3a for holding an electric wire of the U slit terminal 3. That is, the above-mentioned connection pieces 4 ... Are located at substantially the center of the wire insertion notches 8 cut in the telephone relay terminal board 2 and are exposed at the respective U-slit terminals 3. In order to correspond to the electric wire holding slit 3a, it is integrated with the substrate 7 at a constant interval. Further, the plate thickness of the insertion piece 4b of each connection piece 4 ... Is set to be slightly thicker than the width of the slit 3a for holding the electric wire of the U slit terminal 3 ...

On the outer side surface of the substrate 7, a required plurality of pairs of connecting recessed holes 9 and 10 are formed at the time of molding. That is, in the illustrated example, the connection recesses 9 and 10 are arranged vertically so that a part of the substrate 4a of each connection piece 4 ... And a part of the ground plate 5 are exposed at the bottom thereof. Are provided at intervals, and an insulating projection 11 is provided between them. On the other hand, the overvoltage and overcurrent protection element 6 is constructed by bending metal terminals 6b and 6c from both ends of the main body 6a covered with synthetic resin to the back side as clearly shown in FIG.

In the overvoltage and overcurrent protection element 6, the terminals 6b and 6c are inserted into the connection recessed holes 9 and 10 by overlapping the back surface of the main body 6a on the insulating projection 11. Then, the board 4a of the connecting piece 4 and the ground plate 5 are butted against each other, and in this state, as shown in FIG. 3, the board 4a and the terminal 6b, and the ground plate 5 and the terminal 6c are connected to each other. The connection pieces 4, the overvoltage and overcurrent protection element 6, and the ground plate 5 are connected to each other by soldering a and b in the connection holes 9 and 10.

Both ends of the ground plate 5 are extended from both ends of the synthetic resin substrate 7 in the length direction, and the extended ends have a substantially U-shaped holding portion 5a having a spring property. 5a. By holding both sides of the telephone relay terminal board 2 in the length direction between the two holding portions 5a, 5a, the protector module 1 is shown in FIG. They are held as shown in 1 (B).

Each of the connection pieces 4 ... Can be provided with a U-slit terminal 4c as shown in FIG. 4B in addition to that shown in FIG. 4A. By using the connecting piece 4 with the U-slit terminal 4c, the protector module 1 can be connected to the telephone relay terminal board 2 and the necessary U-slit terminal 4c can be used as a communication line. Wires can be connected.

The ground plate 5 is connected to the metal mounting panel 12 to be grounded. The connecting means is (A) of FIG. 1 and (A) of FIG. B) and those shown in FIGS. 7A and 7B. That is, in the connecting means shown in FIG. 1A, the lug terminals 13a and 13b attached to the end portion of the lead wire 13 are screwed into the screw hole 5b formed at the extension end of the ground plate 5 and the attachment. The screws 14 and 15 are fixed to the screw holes 12a formed in the panel 12 for connection. In the connecting means shown in FIGS. 6A and 6B, a connecting leg piece 5c having a substantially L-shaped side surface is integrally extended from the lower edge of the ground plate 5, and the connecting leg piece 5c is connected to the connecting leg piece 5c. Connect the mounting panel 12 by tightening the screws 15. In the connection means shown in FIGS. 7A and 7B, the ground plate 5 is made of a metal elastic material, and the lower edge of the ground plate 5 is integrally formed with the elastic connection leg piece 5d having a substantially inverted V shape on the front. By extending, the elastic connection leg pieces 5d are pressed against the mounting panel 12 by the spring force to be connected. Such connecting means facilitates the attachment and detachment and movement of the ground plate 5 with respect to the mounting panel 12.

In the illustrated embodiment, the connection pieces 4 described above are provided in the same number in the arrangement corresponding to the U-slit terminals 3 of the telephone relay terminal board 2, but as described above, the connection pieces 4 are provided. Since two pairs are the minimum unit, two pairs of connecting pieces 4 ... Can be provided in a necessary number and in a necessary portion as necessary.

[0016]

[Effect of the device]

 Since the protector module for a telephone relay terminal board according to the present invention is configured as described above, in the telephone relay terminal board in which the U-slit terminals are embedded and held in a plurality of rows, one side or When a part of it is not used, it can be used for connection, and the connection piece can be connected simply by inserting it in the slit of the U-slit terminal. By arranging as a pair in the required number and the required number as required, they can be used according to the purpose of use. Furthermore, since the contacts for connecting to the telephone relay terminal board and the protector module are not separately provided, the two can be structurally simplified, and the connecting piece and the ground board are heat-resistant. After integration with synthetic resin by insert molding, each connection piece and ground plate, overvoltage, and overcurrent protection element are soldered in the synthetic resin board concave hole for connection without any problem. In addition, the productivity and economic efficiency of the protector module are improved because they can be easily connected.

[Brief description of drawings]

1A and 1B are perspective views showing an embodiment of a protector module for a telephone relay terminal board according to the present invention and a partially cutaway part of the telephone relay terminal board, and the protector module. FIG. 3 is a side view showing a state in which a telephone is connected to a telephone relay terminal board by partially cutting away.

2 (A) and 2 (B) are a plan view and a front view in which an embodiment of a protector module is partially cut away.

FIG. 3 is a sectional view taken along the line AA of FIG.

4A and 4B are perspective views each showing an embodiment of a connecting piece of the protector module of FIGS.

FIG. 5 is a perspective view showing an overvoltage and overcurrent protection device used in the same protector module.

6 (A) and 6 (B) are a front view and a side view showing the connecting means between the ground plate and the mounting panel of the same protector module.

7 (A) and 7 (B) are a front view and a side view showing another connecting means of the ground plate and the mounting panel of the same protector module.

[Explanation of symbols]

 1 protector module 2 telephone relay terminal board 3 U slit terminal 4 connecting piece 5 ground plate 6 overvoltage and overcurrent protection element 6b, 6c terminal 7 synthetic resin substrate 9, 10 recessed hole for connection

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Hideaki Takahashi 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Hiroshi Iwase 1-1-5, Kiba, Koto-ku, Tokyo Kyoei Line Materials Co., Ltd.

Claims (1)

[Claims for utility model registration] [Claim 1] A pair of required number of connecting pieces and an earth plate common to the connecting pieces are inserted using a heat resistant synthetic resin.
In addition to being integrated by molding, overvoltage and overcurrent protection elements are provided on the synthetic resin substrate by connecting them to the connecting pieces and the ground plate, and the connecting piece has a U of a telephone relay terminal board.
A protector module for a telephone relay terminal board, which is provided with a protruding piece for inserting and connecting to a slit terminal.