KR860002715Y1 - Communication arrangement device - Google Patents

Abstract

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Description

Communication security device

1 is a circuit diagram of a communication security device according to the present invention.

Figure 2 is a partially cutaway perspective view of the communication security device according to the present invention.

3A is a cross-sectional view taken along the line III-III of FIG. 2, and FIG. 3B is a left side view thereof.

4 is a plan view of the present invention.

5 is a bottom view.

6 is a sectional view taken along the line VI-VI of FIG.

7A, 7B, and 7C are explanatory diagrams showing a connection state in which a thermal resistance element is fitted.

8 is a schematic view of a state of mounting on a printed board.

9 is a plan view showing Example 2;

1A and 1B are perspective views of a contact terminal used in Example 2. FIG.

11 is a bottom view showing the arrangement of the terminal insertion pieces.

12 is an explanatory diagram showing a state of mounting on a printed board.

13 is a plan view showing a third embodiment.

* Explanation of symbols for main parts of the drawings

A: 3-pole button type gas arrester a ₁ , ₂ a, a ₃ : electrode

R ₁ , R ₂ : Thermistor r ₁ , r ₂ : Electrode

1: insulation gas 2, 3: opening

9 connection terminal 13 contact surface

14: Available all 20,21: Combined terminal

30,31: Split gas

The present invention relates to a communication security device for protecting a communication device when an abnormal voltage flows into the communication line, and each element constituting the communication security device can be put in a single unit (Unit) to be mounted on the printed pin.

In the conventional communication security device, a three-pole button type gas arrester A on the outer side (L ₁ , L ₂ ) in the balanced communication line as shown in FIG. The thermistors R ₁ and R ₂ are inserted in series, and are thermal resistance elements inserted in parallel and positioned on the inner sides I ₁ and I ₂ . Since low communication voltages are used for the communication lines L ₁ I ₁ , L ₂ , and I ₂ , a poor contact adversely affects the communication voltage and may cause code conversion in a data line.

Therefore, high reliability soldering is performed on the communication lines (L ₁ , I ₁ ) (L ₂ , I ₂ ), but the overvoltage is surely grounded even when there is a light contact fault on the ground side connected in parallel. It is used a lot.

For this reason, the lightning arrester A and thermistors R ₁ and R ₂ are separately attached to the communication security device, so that a large attachment space is required, and the attachment work takes time.

In particular, it is not only troublesome to solder the lead wires of thermistors (R ₁ , R ₂ ) to terminals and terminals, but also the soldering parts must be supported for a few seconds until the solder is dissolved and hardened. Could not be carried out in an automatic process.

This drawback was further inconvenient when the assembly line was mounted.

In view of the above situation, the inventors have focused on developing a unit in which each device has been put in advance, but the following problems remain.

In other words, according to the recent gathering of communication lines, the units to be mounted on the printed circuit boards must be made in such a way that they can be arranged on the printed circuit boards.

Furthermore, in this case, since the shape and electrode arrangement of the lightning arrester A and the two thermistors R ₁ and R ₂ are determined, it must be arranged so as to suit the hole spacing between these and the printed board.

In addition, it is necessary to easily work to insert each element into the unit. To do this, it is better to connect each terminal without soldering, so that each terminal is molded independently and connected to the printed board. In this way, since the ground side of the three-pole lightning protection element A is sandwiched between the two communication lines L ₁ , I ₁ , L ₂ , and I ₂ on the printed board, a ground wire should be used for the grounding side wiring. Has another look.

The present invention is provided to eliminate the above-mentioned defects, and the object of the present invention is to be able to be unitized by simply inserting each element without soldering operation and to mount a plurality of printed circuit boards.

In the structure of the present invention, as shown in FIG. 2, the insulator base 1 having the three-pole lightning protection element A and two thermistors R ₁ and R ₂ having no lead wire on the side thereof is almost disposed in parallel on the printed circuit board. The insulating substrate 1 is formed to be mounted in parallel and is provided with a connecting terminal 9 for connecting the three-pole lightning protection element A to the electrodes a ₁ , a ₂ , and a ₃ , and at the same time, two thermal resistance elements R ₁ ,. Two pairs of contact terminals are provided on each electrode surface of R ₂ ) to hold the entire solubility, respectively, and one contact terminal 13 of each of the two pairs of contact terminals 13 positioned on both sides in parallel is 3 It is arrange | positioned near the pole lightning element A side.

Hereinafter, the present invention will be described in detail with reference to Examples.

Example 1

Figure 2 is a partially cutaway perspective view of the communication security device according to the present invention.

FIG. 3 (a) is a sectional view taken along the line III-III of FIG. 2, and FIG. 3 (b) is a left side view.

Figure 4 is a plan view of the same, Figure 5 is a bottom view of the copper.

6 is a sectional view taken along the line VI-VI of FIG.

7 (a) and 7 (b) and 7 (c) are diagrams showing a connection state in which a thermal resistance element is fitted.

8 is a schematic diagram showing a state of being mounted on a printed board.

In the drawing, 1 is an insulated gas that is shaped into a spherical body made of a synthetic resin having good insulation, and the insulated gas 1 has openings (2, 3) into which the upper surface is inserted. Units are constructed by inserting _two thermistors (R ₁ , R ₂ ), which are two disk-shaped thermal resistance elements, which display the electrode surface.

The insulator base 1 has an external dimension that can be mounted on the printed board P in parallel, and at the same time, the lightning arrester A has an insulator base 1 so as to match the spacing between the terminals of the printed board P and the terminal spacing. ), And the thermistors R ₁ and R ₂ are arranged in parallel in the longitudinal direction on the side of the lightning arrester A.

In detail, the opening 2 has a semicircular bottom portion 2a to support the lightning arrester A, and has a groove 2b at the center of the bottom portion 2a to receive the intermediate electrode a2. Three through holes 4 are provided in the opening 2 in the longitudinal direction outside of the insulated gas 1, and end portions 5 and the catching portions 6 are formed in the respective through holes 4, respectively.

Each through hole 4 is arranged at intervals of the electrodes a ₁ , a ₂ , and a ₃ of the lightning arrester 4, and cutouts 7 are respectively formed above the wall where the through holes 4 are positioned. At the same time, a stone wall 8 is formed between the cutouts 7.

In addition, the connecting terminals 9 are fitted in the through holes 4, respectively.

The connecting terminal 9 bends the upper and lower substrate 9a and the upper part of the substrate 9a to guide the curved portion 9b and the curved portion 9b that support the main surface of each electrode of the lightning arrester A. 9c and the lower part of the board | substrate 9a which were cut | disconnected and made up the cut piece 9d, and the pin 9e which narrowly extended in the lower end of the board | substrate 9a.

Each connecting terminal 9 is molded from a metal plate of the same shape.

When the connecting terminal 9 is mounted along the pin 9e from above the light through hole 4, the lower end of the substrate 9a touches the end 5 of the through hole 4, and the cutting piece 9d is caught by the catching portion 6. ).

In this state, each connecting terminal 9 is spaced apart from each other by an electrode gap, the curved portion 9b is viewed from the cutout portion 7 into the opening 2, and the pin 9e protrudes by a predetermined dimension from the bottom of the substrate.

On the other hand, the opening 3 is wide to allow two thermistors R ₁ and R ₂ to swing, and the bottom portion 3a forms a semicircle to support the service shots R ₁ and R ₂ , respectively. have.

Four through-holes 10 are respectively provided in each opening 3.

Each of the through holes 10 is arranged to be spaced apart from each other in the gas width direction, i.e., both outwards, in each opening 3 located in the center of the longitudinal direction of the insulated gas 1. The other through-holes 10 opposed to these are arranged close to each other in the width direction in the openings 3 located on the right side in the longitudinal direction of the insulated gas 1. Therefore, each of the through holes 10 are arranged alternately as a whole when viewed in plan and are arranged at intervals between insertion holes of the printed board P. As shown in FIG.

In the through hole 10, an end portion 5 and a catching portion 12 are formed, respectively.

In addition, the through hole 10 is disposed away from the wall surface of the opening 3.

Two pairs of contact terminals 13 are fitted into the through holes 10, respectively.

The contact terminals 13 are formed in the same shape as metal plates, respectively, and are formed by cutting up and down the contact pieces 13b and the lower part of the substrate 13a extending in a flag shape from the upper and lower substrates 13a and 13a. It consisted of the fin 13d extended narrowly under the season piece 13c and the board | substrate 13a.

The contact surface 13b is formed to be in surface contact with about half of the electrode surfaces r ₁ and r ₂ of the thermistors R ₁ and R ₂ , and exhibits elasticity with the substrate 13a as an axis. .

The soluble conductor 14 is provided on the contact piece 13b.

The soluble conductor 14 is plated or coated on the contact surface, and a metal, an alloy, or a conductive material such as indium (In) that melts at a low temperature is used.

Although not shown, the soluble conductor 14 may be provided on the electrode surfaces r ₁ and r ₂ of the thermistors R ₁ and R ₂ , or may be sandwiched between them.

In addition, when the contact terminal 13 is inserted with the pin 13d above the through hole 10 as a guide, the lower end of the substrate 13a touches the end 5, and the cut piece 13c is attached to the holding portion 12. It is to take. When fitting, the contact pieces 13b of the contact terminal 13 which comprise a pair are arrange | positioned so that they may mutually face.

In this state, each contact of each of the two pairs of contact terminals to be inserted into the printed circuit board P described below and to be connected to each connection terminal 9 of the main electrodes a ₁ and a ₃ of the electric lightning arrester A is established. The terminals 13 are spaced apart from each other on both sides, and the respective contact terminals 13 paired with them are obliquely spaced inwardly.

Moreover, the pin 13d of each contact terminal 13 protrudes by the said predetermined | prescribed dimension from the bottom face of the insulated gas 1 by the said arrangement | positioning. The interval h of the contact pieces 13 of the paired contact terminals 13 and the thickness H of the thermistors R ₁ and R ₂ are set in a relationship of h <H.

The distance l between the thickness H and the substrate 13a is set in a relationship of H <l. In addition, the middle part 15 is the corner which protrudes on the lower surface of the insulated gas 1.

The respective terminals 9... (13) Corresponding to the arrangement, the printed circuit board P is connected to the holes P _1a and P _1b constituting the communication lines L ₁ and I ₁ and similarly connects the communication lines L ₂ and I ₂ . The holes P _3a and P _3b constituting are connected. The holes P _1b and P _3b are arranged at equal intervals with the holes P _1a and P _3a , and ground wires E are connected to the holes P _2a without being chipped therebetween. In addition, the holes P _1c and P _2c are disposed at the distances adjacent to each other on the inner sides I ₁ and I ₂ .

Next, the effect | action by the said structure is demonstrated.

First, when the lightning arrester A is inserted into the opening 2, each guide pin 9C is guided to the main surface of each of the electrodes a _{1 to a 3} to open, and each curved portion 9b is opened to each electrode a _{1 to a 3.} ) It is burnt on the main surface and leads to support.

Since each connection terminal 9 is pressed by the notch 7, the lightning arrester A is elastically pressed against and supported on the other wall.

Then is the summit Star (R _1), the inserted, the opening (3) Summit Star (R ₁₎ of contact pieces (13b) due to the thickness (H) pressing this with each other a direction book Summit Star (R ₁₎ each contact piece It is located obliquely as it intersects the inclined direction of 13b, and is pressed by the elastic return force of the contact piece 13b.

At this time, a series contact point is formed between the contact piece 13b and the electrode surface r ₁ , and the pressure is always applied to the contact point with 14 soluble conductors interposed therebetween, and the electrode surface r _{1 is} connected to the contact piece ( 13b) .Thermistor R ₂ is inserted in the above manner.

After insertion, the whole of the insulating gas 1 through an electric furnace or a high frequency furnace is heated to melt the soluble conductor 14 to melt-connect the contact points and form a unit that combines the elements.

Because of the pressing force at the contact point, soldering or the like can be avoided, and a reliable and reliable connection can be made.

The unit thus manufactured is mounted to fit the hole spacing of the printed board P. FIG. This mounting constitutes a communication security device.

Since the insulator base 1 which comprises a unit is suitable for the printed circuit board P, many are mounted in parallel.

Thus, according to the above embodiment, the unit can be constituted by simply inserting each of the elements A, R ₁ , R ₂ into the openings ₂ , 3 of the insulated gas 1, and passing through the furnace, 14) It melts and contacts and can prevent contact failure of a contact beforehand. In particular, since the pressure is applied between the melting and solidification of the soluble conductor 14, it is not necessary to support the welding point so as not to move as in the prior art, and the mass production process can be performed without the troublesome soldering work.

Moreover, since the board | substrate 13a was obliquely arrange | positioned facing the flag-shaped contact piece 13b, the contact terminal 13 of the same shape can be used, and the thermistor R as it spreads in the separation direction of the contact piece 13b. Regardless of the thickness H of ₁ , R ₂ , it can be fitted, and can be strongly fitted with elasticity in the direction of fitting the contact piece 13b with the substrate 13a as the axis.

Further, each connecting terminal 9 for pressing the lightning arrester A is reliably connected to the side surfaces of the electrodes a _{1 to a 3} by the curved portions 9b, and furthermore, each connecting terminal 9 is made into the same shape. Can be used.

Example 2

9 is a plan view showing a second embodiment.

10 (a) and 10 (b) are perspective views of a contact terminal used in Example 2. FIG.

11 is a bottom view showing the arrangement on the terminal insertion piece.

12 is an explanatory diagram to be mounted on a printed board, and the same reference numerals in the middle are omitted to denote the same parts.

20 and 21 are combined terminals, and the combined terminals 20 and 21 have the same structural portions of the electrical metal terminal 9 and the contact terminal 13, and the contact piece 20a is located on the other side of the substrate 13a. This is integrally formed.

The contact piece 20a bends and connects the connection part 20b at right angles; It consists of the guide piece 20c which bent the upper end to one side, and the curved part 20d which curved the lower part. The contact pieces 20a are bent and arranged in a direction away from each other, and press-support the main electrodes a ₁ and a ₃ of the lightning arrester A.

The combined terminals 20 and 21 and the electrical connection terminals 9 are arranged in the center of the insulating gas 1 at intervals of the electrodes a _{1 to a 3} of the lightning arrester A, and the through holes corresponding thereto are provided. Pierced

According to the above configuration, when the lightning arrester A is inserted, each guide piece 20C, 9C, 21C is opened on the main surface of each electrode a _{1-a 3} to be supported by each curved portion 20d, 9b, 21d and brought into contact with each other.

In this case, the contact pieces 20a and 21a exert elasticity toward the bending direction of the connecting portions 20b and 21b.

Then, insert the thermistor (R ₁ ), the contact terminal portion of the combined terminal (20) to function as a contact terminal 13 in pairs to insert the thermistor (R ₁ ).

Similarly, since the thermistor R ₂ is sandwiched between the combined terminal 21 and the contact terminal 13, the soluble conductor 14 is melted and manufactured in an electric furnace or a high frequency furnace. According to this embodiment, the common usability of the terminal is hindered, but the advantage of achieving the same effect as the electricity and simplifying the holes and wiring of the printed board P, and miniaturizing the insulation substrate 1 Can contribute to In addition, the same effect can be achieved even if the position of the combined terminal 20 (21) is replaced.

Example 3

Figure 13 is a plan view showing another embodiment of the invention.

The same reference numerals will be omitted since duplicate parts are indicated for equivalent parts.

30 is a divided gas into which the lightning arrester A is inserted, 31 is a divided gas into which two thermal resistance elements R ₁ and R ₂ are inserted, and an insulated gas is formed by combining the two split gases 30 and 31. .

You may color-measure to the side which combined as needed.

According to this embodiment, the operation of inserting the lightning arrester A and thermistors R ₁ and R ₂ can be simplified, and only the splitting gas 31 can be manufactured efficiently by passing through an electric furnace or a high frequency furnace.

In particular, it is possible to exchange elements for each of the divided gases 30 and 31.

In addition, although the thermistor has been described as the column array element in the above embodiment, other disc-shaped elements may be used.

Thus, according to the present invention, it is possible to provide a printed circuit board mounting unit in which a three-pole button-type gas-induced lightning arrester and two thermal resistance elements are pre-inserted, and a security circuit for communication can be constructed simply by mounting on a printed circuit board. It can be attached in parallel to many printed circuit boards for the purpose.

In addition, since the soluble conductor is squeezed between the contact terminal and the heat resistance element electrode surface, it is possible to make a connection without contact failure simply by passing the inside of the furnace. In addition, by forming a combined terminal and placing one contact terminal on both sides of the thermal resistance element close to the 3-pole button type gas arrester, the contact terminals can be wired without having to jump the ground wire located in the middle of the printed board. have.

Claims (4)

In a communication security device in which a three-pole button type gas arrester is inserted in parallel between a communication line and ground (E), and a plurality of thermal resistance elements R ₁ and R ₂ are inserted in series in each communication line. An insulator base 1 in which a pole button-type gas-induced lightning arrester A and two thermal resistance elements R ₁ and R ₂ having no lead wires in the two sides are almost assembled in parallel is a printed board. (P) is formed so as to be mounted in parallel, and the insulating gas 1 is provided with a connecting terminal 9 for connecting to the three-pole button-type gas-induced lightning arrester electrode a ₁ , a ₂ , a ₃ and at the same time, two thermal resistances. Two pairs of contact terminals are formed on each of the electrode surfaces r ₁ and r ₂ of the device to form a soluble conductor, and each of the two contacts is pressed in parallel. One of the contact terminals located on the external side is arranged close to the three-pole button type gas arrester A side. Security devices. The communication terminal according to claim 1, wherein the other contact terminals 13 located inside of the pair of contact terminals 13 are disposed obliquely with respect to the one contact terminal 13, respectively. Security device. The insulation gas (1) according to claim 1 is a plurality of split gases (30, 31) by separately assembling the three-pole button-type gas-induced lightning arrester (A) and two thermal resistance elements (R ₁ , R ₂ ), respectively. Communication security device, characterized in that combined with. The communication security as claimed in claim 1, wherein the integrated contact pieces (20a, 21a) and the substrate (13a) are bent at right angles to form a combined terminal such that the main electrode of the lightning arrester and the electrode surface of the thermistor contact each other. Device.