KR200163077Y1 - A structure for a point of contact in an arrester - Google Patents

Abstract

The present invention relates to a lightning arrester, which is a communication device protection device that can protect a communication device from a surge voltage by discharging a surge voltage generated by a lightning strike in a communication device. It relates to a ground contact structure of the arrestor (arrestor) and a contact structure of the positive temperature coefficient (PTC).

Conventionally, due to the structure of the insulating member, the contact time is slow, the contact is uncertain, and may cause ignition. In addition, when the PTC is coupled, the fixing means for fixing the PTC up and down and forming a contact is separately formed. There is a problem that the coupling is not easy because it must be fixed with a bolt or the like.

In the present invention, in order to solve such a conventional problem, a hole 204a is formed in the insulating member 204 which serves as a ground contact control means to block the surge voltage, and the contact protrusion 203b is formed through the formed hole 204a. By making the insulating member 204 make contact with the arrester 201 in accordance with the recording, it is possible to provide a fast and reliable ground contact time, and also to integrate the PTC 301 upper and lower fixing means, By ensuring the insulation of both poles of the PTC 301, it is possible to provide the device contact structure of the arrester to facilitate the coupling of the PTC 301 and to provide a reliable contact.

Description

Device contact structure of the arrester.

The present invention relates to a lightning arrester, which is a communication device protection device that can protect a communication device from a surge voltage by discharging a surge voltage generated by a lightning strike in a communication device. It relates to a ground contact structure of the arrestor (arrestor) and a contact structure of the positive temperature coefficient (PTC).

In general, a communication device, etc., is equipped with an arrester to prevent damage to the device due to surge voltage caused by lightning or abnormal voltage, such as to discharge the surge voltage generated to flow to the ground of the device. Main action.

FIG. 1 is a diagram showing the circuit structure of such an arrester. As shown in FIG. 1, the arrester is formed by the arrester AR and PTC formed between the outer lines L1 and L2 and the inner lines S1 and S2. It will protect the device from voltage.

Unexplained symbols D1 and D2 are polarizers, which allow the circuit to be manually shorted when the arrester is plugged into the apparatus.

When the overvoltage and the abnormal voltage are generated, the arrester AR generates heat, thereby allowing the contact with the ground to be made so that the generated abnormal voltage flows to the ground.

In addition, when the overcurrent flows, the PTC increases the resistance value, suppresses the current, and returns to the original resistance value when the original recovery is performed.

The present invention is to propose a contact structure of the arrester and the PTC having the above function.

The arrester grounding contact structure of the conventional lightning arrester, as shown in FIG. 2A, bonds an insulating member 2 of plastic material melted by heat to both poles 1 of the arrester AR making contact with the outer lines L1 and L2. And the connecting plate 4 making contact with the ground 3 on the upper side of the insulating member 2.

In the arrester ground contact structure made as described above, the insulation member 2 is melted by heat generated in the arrester AR when a surge voltage is generated.

Therefore, as shown in FIG. 2B, the contact plate 4 closely attached to the insulating member 2 is pushed into the molten portion of the insulating member 2, thereby making contact with both poles 1 of the arrester AR. The abnormal voltage applied to both poles 1 can flow to the ground 3 through the connecting plate 4.

However, in such a case, there is a problem that the time for melting the insulating member 2 is long, or the contact point of the connecting plate 4 due to the recording of the insulating member 2 is uncertain.

The contact structure of the conventional PTC is a structure in which each connecting plate is formed on the upper and lower anodes of the PTC, and the connecting plate connected to each of the upper and lower poles is fixed to the PTC using fixing means such as bolts that ensure insulation.

Such a structure has a disadvantage in that the connection plate is configured separately to fix the PTC so that the contact can be made, and also because it must be fixed with a bolt or the like, the coupling is inconvenient.

As described above, in the conventional ground contact structure of the arrester, there is a possibility that a fire may occur during continuous discharge due to the slowness of melting speed due to heat generation and the uncertainty of the contact, and also in the fixed coupling of PTC. There is inconvenience in coupling because it is fixed by using a bolt or the like as the connection plate of the upper side and the lower side.

In order to solve the above problems, the present invention can change the shape of the insulating paper to provide a reliable contact with the ground caused by the heat generation of the arrester. Fixing and coupling is to be made easily.

1 is a configuration circuit diagram for explaining the operation of a general arrester.

Figure 2a is a view showing the contact structure of the arrester in the device contact structure of the conventional arrester.

Figure 2b is a view showing a state acting as the arrester heats the element contact structure of the conventional arrester.

3 is a perspective view showing a state in which the cover is removed in order to show the structure of the lightning arrester is completed in the present invention.

Figure 4a is a plan view showing a state in which the cover is removed to show the structure of the lightning arrester is completed in the present invention.

Figure 4b is a bottom view showing a state in which the cover is removed in order to show the structure of the lightning arrester is completed in the present invention.

Figure 5 is an exploded perspective view for showing the arrester contact structure in the present invention.

Figure 6 is an exploded perspective view for showing the PTC contact structure in the present invention.

Figure 7a is a view showing the arrester contact structure in the present invention.

Figure 7b is a view showing a state that acts as the arrester heats up, in the present invention.

3 to 4b is a perspective view, front view, and bottom view showing the state in which the cover is removed to show the structure of the arrester is completed, Figure 5 is an exploded perspective view for showing the arrester contact structure before being coupled to the arrester body, Is a perspective view for showing the PTC contact structure before being coupled to the arrester body.

The structure of the present invention will be described with reference to the accompanying drawings, FIGS. 3 to 6.

The arrester has a structure in which the arrester assembly 200 and the PTC assembly 300 are integrally coupled to the main body 100.

The PTC assembly 300 is coupled to one side, and the other PTC assembly 300 is coupled to the other side to which the PTC assembly 300 is coupled, and the arresting arrester assembly 200 and the PTC assembly 300 are coupled to each other. The outer connecting plate 400 having contact parts 401 and 402 with the arrester assembly 200 and the PTC assembly 300 are coupled to each other so as to be connected to each other.

The outer line connecting plate 400 has a structure in which a guide part 403 is formed to face the outside of the main body 100 at a contact portion with the arrester assembly 300 coupled to the main body 100.

In addition, the main body 100 is connected to the arrester assembly 200, the PTC assembly 300, and the outer line (L1, L2) and the inner line (S1, S2) from the outer connecting plate 400 is connected to the circuit. A connector 101 in charge is formed, and the connector portion 101 has a structure in which a ground contact socket G is formed from the arrester assembly 200 on one side or the other side thereof.

In the structure of the arrester coupled in this way, the arrester assembly 200 is the arrester fixing portion 202 for fixing the arrester 201 to be coupled to the main body 100, and the arrester 201 of A ground connecting plate 203 for connecting the grounds 201a and 201b of the arrester 201 to allow contact with the ground, and an anode of the ground connecting plate 203 and the arrester 201. It is inserted between the melter by the heat generated in the arrester 201, the ground connecting plate 203 is made of an insulating member 204 to make contact with both poles (201a, 201b) of the arrester 201.

In addition, the ground connecting plate 203 has a depression shape and a contact is made with the insulating member 204 inserted into both poles 201a and 201b of the arrester 201, and the ground of the arrester 201 is made. The fastening hole 203a is formed so that the ground protrusion 201d formed in the 201c can be coupled, and for a reliable contact with the insulating member 204 inserted into the poles 201a and 201b of the arrester 201. The contact protrusion 203b is formed.

The insulating member 204 has a circular hole 204a formed therein, and both poles 201a of the arrester 201 are in contact with the contact protrusion 203b formed in the ground connecting plate 203. 201b) is a fixed structure.

In addition, the arrester fixing part 202 is a fastening hole 202a to which the ground protrusion 201d of the arrester 201 fastened to the fastening hole 203a of the ground connecting plate 203 and the lower side thereof. The guide groove 202b is formed to fix the other ground protrusion 201d of the ground protrusion 201d fastened to the fastening hole 202a.

In addition, the PTC assembly 300 is integrally formed in the form of a recess so that the top and bottom of the PTC 301 can be fixed, and a slip for providing an elastic force at the upper side so that a reliable contact fixing of the PTC 301 can be made. 302a is formed, on one side thereof, the PTC fixing part 302 making contact with the contact part 402 of the external connection plate 400,

The PTC 301 is mounted, and guide protrusions 303a are formed at each corner to prevent the flow of the mounted PTC 301, and between the slip 302a and the support 302b of the PTC fixing part 302. A PTC contact support plate 303 coupled to the PTC contact point plate 303b to form a small protrusion 303b at a portion making contact with the PTC 301 so as to radiate a sure contact with the PTC 301 and generated heat;

Insulation paper 304 is inserted between the contact support plate 303 and the support portion 302b of the PTC fixing portion 302 contacted for insulation of both poles of the PTC 301 to be coupled.

The device contact structure of the inventive lightning arrester having such a structure is in the contact fixing structure of the arrester assembly 200 and the PTC assembly 300 coupled to the main body 100, the ground contact by heat generation of the arrester 201 To improve the structure and the fixed coupling structure of the PTC (301),

3 to 4B, the arrester 200 and the PTC assembly 300, to which the arrester 201 and the PTC 301 are coupled and fixed, are respectively coupled to the main body 100 of the arrester. The external line connecting plate 400 is coupled together for the circuit connection between the L1 and L2 and the internal lines S1 and S2.

The PTC assembly 300 and the external connection plate 400 are coupled to each side of the main body 100 one by one.

At this time, both poles 201a and 201b of the arrester 201 fixed to the arrester assembly 200 are connected to the external connection plate 400, and the guides protruding from the external connection plate 400 in a connected state. It is prevented to flow outward to the portion 403.

In addition, the external connection plate 400 is a contact with the PTC fixing portion 302 of the PTC assembly 300 at each bonded position, and exhibits the circuit configuration as shown in FIG.

Here, the grounding part of the arrester assembly 200, the PTC assembly 300 and the external connection plate 400 is formed so that the contact structure is connected to the connector portion 101 of the main body 100 of the arrester When the connector unit 101 is plugged into the device, the circuits of the external lines L1 and L2 and the internal lines S1 and S2 can be connected.

Looking at the contact structure of the arrester assembly 200 and the PTC assembly 300 coupled as described above are as follows.

First, in the arrester assembly 200, as shown in Fig. 5, the ground projection 201d protruding from the ground 201c of the arrester 201 is connected to the fastening hole 203a formed in the ground connecting plate 203. When fitted, the ground connection plate 203 having a depression shape has contact contacts 203b formed on both outer sides of the earth connection plate 203b making contact with both poles 201a and 201b of the arrester 201.

At this time, the insulating member 204 is inserted between both poles 201a and 201b of the arrester 201 and the contact protrusions 203b to ensure insulation during normal operation.

The insulating member 204 has a circular hole 204a formed at the center thereof, and is inserted into the contact protrusion 203b of the ground connecting plate 203.

Here, since the insulating member 204 has a predetermined thickness, as shown in FIG. 7A, the contact protrusion 203b of the ground connecting plate 203 fitted into the hole 204a of the insulating member 204 is an arrester 201. It does not make contact with both poles 201a and 201b.

Thereafter, the ground protrusion 201d of the arrester 201 protruding through the fastening hole 203a of the ground connecting plate 203 is inserted into the fastening hole 202a of the arrester fixing part 202 and the arrester 201 ) Is pushed inward, the arrester 201 is fixed while the ground projection 201d of the other side arrester 201 is caught by the guide groove 202b formed at the lower side thereof.

The arrestor 201 having such a contact structure generates heat when a surge voltage generated by a lightning strike or an abnormal voltage is generated, thereby connecting the ground to both poles 201a and 201b of the arrester 201. The insulating member 204 in close contact with the contact protrusion 203b of the plate 203 is melted.

As the insulating member 204 is melted as described above, when it melts for a predetermined thickness or more, the contact protrusion 203b, which is fastened to the inner hole 204a, contacts the poles 201a and 201b on both sides of the arrester 201. Is achieved.

Therefore, the abnormal voltage applied to the poles 201a and 201b of the arrester 201 flows to the ground through the ground connecting plate 203, so that the abnormal voltage does not flow after the arrester 201.

At this time, since the contact projection 203b of the ground connecting plate 203 is inserted into the hole 204a formed in the insulating member 204, as shown in FIG. 7B, the insulating member 204 is connected to the arrester 201 as recording. The contacts with both poles 201a and 201b of the can be surely made in a short time.

Then, the PTC assembly 300 coupled to both sides of the main body 100, as shown in Figure 6, after placing the PTC 301 on the PTC contact support plate 303, of the PTC fixing portion 302 made of a depression shape It is coupled between the slip 302a and the support 302b.

In this case, the PTC 301 is completely fixed by the elastic force provided by the slip 302a of the PTC fixing part 302.

At this time, since the PTC fixing part 302 is formed integrally with the top and bottom, insulated paper between the supporting part 302b of the PTC fixing part 302 and the PTC contact supporting plate 303 for insulation of both poles of the PTC 301. 304 is inserted.

Here, the fixed PTC 301 is prevented from flow by the guide projections 303a formed at each corner of the PTC contact support plate 303, PTC contact support plate 303 making contact with the placed PTC 301 The small projection 303b is formed at the portion of the, so that a reliable contact with the PTC 301 is made, and radiation of heat generated from the PTC 301 is easily performed.

As described above, the hole 204a is formed in the insulating member 204 acting as a ground contact control means to cut off the surge voltage, and the contact protrusion 203b is formed through the formed hole 204a. By making the contact with the arrester 201 in accordance with the recording, it is possible to provide a fast and reliable ground contact time operating time.

In addition, by integrating the upper and lower fixing means of the PTC 301 and ensuring the insulation of both poles of the PTC 301, the PTC 301 can be easily joined and there is an effect that a reliable contact can be provided.

Claims (2)

The ground connecting plate 203 making contact with the ground 201c of the arrester 201 is in close contact with both poles 201a and 201b of the arrester 201 to form a contact, and the ground connecting plate 203 The insulation member 204 is inserted into the contact portions of both poles 201a and 201b of the raster 201 to ensure an insulation state. Holes 204a are formed in the insulating member 204, and contact poles 203b formed in the ground connecting plate 203 are fastened to the formed holes 204a to both poles 201a and 201b of the arrester 201. ) And the device contact structure of the arrester, characterized in that the contact is made in a state of securing insulation. It is formed integrally in the form of a recess so as to fix the top and bottom of the PTC 301, the upper side is formed with a slip 302a for providing an elastic force to ensure a reliable contact fixing of the PTC 301, the one side PTC fixing part 302 which makes contact with the contact part 402 of the external connection board 400, The PTC 301 is mounted, and guide protrusions 303a are formed at each corner to prevent the flow of the mounted PTC 301, and between the slip 302a and the support 302b of the PTC fixing part 302. PTC contact support plate 303 coupled to, Of the lightning arrester, which is formed of an insulating paper 304 inserted between the contact supporting plate 303 contacted for insulation of both poles of the coupled PTC 301 and the supporting portion 302b of the PTC fixing part 302. Device contact structure.