JPH0619386U - Telephone relay terminal board protector module - Google Patents

Abstract

(57) [Abstract] [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] A pair of two connecting pieces 4, 4 and a connecting plate 5 are integrated by insert molding using a heat resistant synthetic resin.
The connection pieces 4 and 4 and the connection plate 5 are connected to the connection recesses 9 and 10 provided in the synthetic resin substrate 6 to protect the overvoltage and overcurrent elements 7,
7 and soldering b and c, and projecting a connecting piece 4b for inserting and connecting to the U-slit terminal 3 of the telephone relay terminal board 2 on both connecting pieces 4 and 4, and mounting panel 13 on the connecting board 5.
A connecting portion 5e into which the fixed ground plate 12 is inserted and connected is formed.

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 risk of overvoltage and overcurrent that have entered the telephone communication line due to lightning strikes or intrusion due to contamination, etc., the telephone relay terminal board is protected by a safety switch. 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 point) for connecting to the telephone relay terminal board, the configuration of both is complicated and the cost is high. Yes, it has become a problem to be solved.

The present invention has been made in view of the above problems of the above-mentioned conventional technology. That is, the known telephone relay terminal board may not use one or a part of the U-slit terminals. Therefore, it was devised with a focus on the effective use of this, and existing telephone relay terminal boards can be easily connected to the necessary parts (terminals) as needed, and there is no danger of overvoltage or overcurrent. It is an object of the present invention to provide a protector module for a telephone relay terminal board, which can prevent the above problems.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, a protector module for a telephone relay terminal board according to the present invention comprises a pair of connecting pieces and a connecting board common to both connecting pieces made of heat-resistant synthetic resin. -Integrated with the synthetic resin substrate by molding, and providing two overvoltage and overcurrent protection elements on the synthetic resin substrate by connecting them to each of the above-mentioned connecting pieces and connecting plates, and to each connecting piece. It is characterized in that an inserting piece for inserting and connecting to a U-slit terminal of the relay terminal plate and a connecting portion for inserting and connecting an earth plate fixed to the mounting panel are formed on the connecting plate.

[0006]

[Action]

 By inserting the insertion piece part of the connection piece into the required U-slit terminal on one side of the telephone relay terminal board, and inserting the ground plate fixed to the mounting panel (metal) into the connection part of the connection board The equipment module is attached to the side of the telephone relay terminal board.

The above-mentioned connecting portion is integrally formed with the connecting plate by a metallic elastic material, and has a spring property and is hung vertically downward in a U-shape on the side surface. It is connected by pushing it into the board.

[0008] On the ground plate, one insert piece corresponding to the protector module of the present invention formed by a pair of two pieces is integrally formed upright, and the insert piece is inserted into the connecting portion of the connecting plate. Connected by. This ground plate is fixed to the mounting panel by screwing or the like.

When an overvoltage or an overcurrent enters the communication line due to induction or contamination, the overvoltage and overcurrent protection elements connected to the U-slit terminal of the telephone relay terminal board, the connection board, and the ground board are connected. , It will flow to the grounded mounting panel to stabilize the communication equipment (telephone exchange) at the same zero potential as the ground and prevent the danger due to overvoltage and overcurrent.

[0010]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a partially cutaway vertical sectional view of a telephone relay terminal board to which the protector module of the present invention is connected. FIG. 2 shows a perspective view in which a protector module and a telephone relay terminal board in which the protector module is connected to a part of the U-slit terminal are partially cut away.

The protector module 1 of the present invention includes a U-slit terminal 3 ... In a telephone relay terminal board 2 as shown in FIGS. 1 to 3 (A), (B) and (C). The pair of connecting pieces 4 and 4 to be inserted and connected to the wire holding slit 3a and the connecting plate 5 common to both connecting pieces 4 and 4 are formed by insert molding using a heat resistant synthetic resin. It is integrated with the synthetic resin substrate 6 in a vertical arrangement, and two pairs of overvoltage and overcurrent protection elements 7 and 7 (semiconductor elements) are connected between the connection pieces 4 and 4 and the connection plate 5, respectively. It is configured.

As shown in FIG. 3A, the two connecting pieces 4 and 4 include a metal substrate 4a and an inserting piece 4b in which one side of the upper half of the substrate 4a is bent at a right angle. The base parts of the board 4a and the insert piece 4b are embedded and held above the heat-resistant synthetic resin board 6 as shown in FIG. The front end of the U-slits 3 and 3a for holding the electric wire of the U-slit terminals 3 and 3 is provided so as to be detachably insertable.

That is, the two insertion pieces 4b, 4b are located at substantially the center of the wire insertion notches 8 ... ··············································································································? The plate thickness of the insertion pieces 4b and 4b of the two connection pieces 4 and 4 is set to be slightly thicker than the width of the slit 3a for holding the wire of the U-slit terminal 3.

As shown in FIG. 3B, the connecting plate 5 is formed by bending a metallic substrate 5a and the lower end of the substrate 5a outward at a right angle, and the surplus end downward at a right angle. A bent vertical plate 5b and cuts 5c and 5c are cut at regular intervals on the left and right sides of the central portion of the vertical plate 5b, and the cuts 5c and 5c are cut and raised vertically to be formed vertically downward. The holding plate 5d is integrally formed, and the substrate 5a is embedded and held below the synthetic resin substrate 6 as shown in FIG. 1, and the vertical plate 5b and the holding plate 5d are placed outside from the lower end of the substrate 6. It is made to project vertically.

Further, the connecting plate 5 is formed at its lower end with a connecting portion 5e having a substantially U-shaped side surface, which is provided with elasticity by a vertical plate 5b and a holding plate 5d. The width a of the connecting portion 5e is set to be slightly smaller than the thickness of the insertion piece in the ground plate described later, and the width of the lower end portion is the lower end of the vertical plate 5b and the holding plate 5d. By bending or inclining outwardly symmetrically, it is formed wider than the plate thickness of the above-mentioned insertion piece, which allows the insertion piece to be easily inserted into the connecting portion 5e by a pushing operation.

On the left and right sides of the outer surface of the substrate 6, a pair of connecting recessed holes 9 and 10 are formed at regular intervals during molding. That is, the connection recessed holes 9 and 10 are arranged vertically so that a part of the substrates 4a and 4a of both the connection pieces 4 and 4 and a part of the substrate 5a of the connection plate 5 are exposed at the bottom thereof. The recesses are provided at intervals, and the insulating projection 11 is provided between them.

On the other hand, as shown in FIG. 1, the above-mentioned overvoltage and overcurrent protection element 7 has metal terminals 7b and 7c bent in a U shape from both ends of a main body 7a covered with synthetic resin to the back side. Is configured.

In the overvoltage and overcurrent protection element 7, the back surface of the main body 7a is superposed on the insulating projection 11, so that both terminals 7b and 7c are inserted into the connection recess holes 9 and 10. Then, the board 4a of the connecting piece 4 and the board 5a of the connecting plate 5 are butted against each other, and in this state, the board 4a of the connecting piece 4 and the terminal 7b and the board 5a of the connecting board 5 are held as shown in FIG. The terminals 7c and the terminals 7c are soldered b and c in the connection recesses 9 and 10 to connect the connection piece 4, the overvoltage and overcurrent protection element 7, and the connection plate 5 to each other.

The earth plate 12 is integrally formed by a plurality of metallic substrates 12a ... And a single insert piece 12b which is continuously bent from one side of the substrate 12a. There is. The insertion pieces 12b are provided vertically in the length direction of the substrate 12a so as to correspond to the respective connecting portions 5e of the respective protector modules 1 ... Reference numeral 12c indicates a screw hole formed in each substrate 12a.

The ground plate 12 of the ground plate 12 is screwed to the metal mounting panel 13 fitted in the center of the telephone relay terminal plate 2 as shown in FIGS. 1 and 2. 14 ... Fixed by a stopper or the like, and insert the both insertion pieces 4b, 4b of the protector module 1 into the slits 3a, 3a of the U slit terminals 3, 3 of the telephone relay terminal board 2 from above. When doing so, the insert piece 12b of the ground plate 12 is also inserted into the connecting portion 5e.

[0021]

[Effect of device]

 Since the protector module for a telephone relay terminal board according to the present invention is constructed as described above, a part of the telephone relay terminal board in which the U-slit terminals are embedded and held over a plurality of rows. When not using, etc., when connecting using this, the connecting piece can be inserted into the slit of the U-slit terminal at the same time as the connecting part can be inserted into the ground plate for one-touch connection. In addition, since it is composed of two pairs of minimum units, it has many advantages such as being easy to handle, easy to manufacture and low in cost, and being able to deal with it only by replacing it in case of failure.

[Brief description of drawings]

FIG. 1 is a protector module for a telephone relay terminal board according to the present invention.
FIG. 3 is a vertical cross-sectional view in which a portion of the working example is shown in a cutaway state.

FIG. 2 is a perspective view showing a telephone relay terminal board according to the same embodiment with a part thereof cut away.

FIG. 3 is a perspective view showing an embodiment of the same protector module, in which (A) is a connecting piece, (B) is a connecting plate, and (C) is a partially cut-away state of the ground plate. is there.

[Explanation of symbols]

 1 protector module 2 telephone relay terminal board 3 U slit terminal 4 connection piece 4b insertion piece 5 connection board 5e connection part 6 synthetic resin board 7 overvoltage and overcurrent protection element 12 ground board 13 mounting panel

Claims (1)

[Scope of utility model registration request] 1. A pair of two connecting pieces and a connecting plate common to both connecting pieces are integrated with a synthetic resin substrate by insert molding using a heat-resistant synthetic resin, and the synthetic resin substrate. Two overvoltage and overcurrent protection elements are provided by connecting to each of the above-mentioned connecting pieces and the connecting plate, and a connecting piece for inserting and connecting to each of the connecting pieces into the U-slit terminal of the telephone relay terminal plate is attached to the connecting plate. A protector module for a telephone relay terminal board, characterized in that a connecting portion for inserting and connecting a fixed ground board is formed in each panel.