KR101783694B1

KR101783694B1 - Surge Protection Apparatus

Info

Publication number: KR101783694B1
Application number: KR1020160000373A
Authority: KR
Inventors: 배수근
Original assignee: 주식회사 에스이티
Priority date: 2016-01-04
Filing date: 2016-01-04
Publication date: 2017-10-17
Also published as: KR20170081396A

Abstract

A surge protection device is disclosed. A surge protector according to the present invention is a plug-in module type surge protector applied to a three-phase three-wire system having an L wire, an N wire and a ground wire, the surge protector comprising: a body having a receiving portion; An L terminal formed on one side of the body and connected to the L line; An N terminal formed on one side of the body and connected to an N line formed in parallel to one side of the L terminal; A ground terminal connected to a ground line formed on the other side of the body so as to face the N terminal; A first sub body connected to the L terminal; A second sub body connected to the N terminal and the ground terminal and disposed in parallel with the first sub body; And a terminal plate connecting one side of the first sub body and the one side of the second sub body in an oblique direction.
According to this, the first sub-body and the second sub-body are provided so as to connect the ground-side second sub-body, the L terminal and the N-terminal, respectively, and the first sub-body and the second sub- It is possible to easily change the positions of the ground and the L and N terminals, thereby preventing an accidental mistake by the user.

Description

[0001] Surge Protection Apparatus [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a surge protector, and more particularly, to a surge protector for plug-in module type surge protector.

Generally, a surge is a voltage that occurs momentarily or intermittently above a normal voltage in an electric circuit or an electric system.

According to this surge, an information device using a semiconductor such as a semiconductor or an IC (Integrated Circuit) is subjected to various influences such as dielectric breakdown, stopping of function, and deterioration.

These surges enter the track in the form of induction, radiation, and conduction, and ultimately affect equipment as a form of conduction.

A surge protection device is used to protect the device from this surge voltage.

The surge protection device is to cut off the abnormal voltage above the safety range supplied to the electric device or to attenuate it by connecting it to ground.

Regarding the surge protective device, it is disclosed in Korean Patent Registration Publication No. 10-0992426.

Generally, surge protection devices are divided into voltage switching type, voltage limiting type and combination type according to their functions.

Voltage-switching type is a surge protection device that has a high impedance state when no surge is applied and a sudden impedance decrease when voltage surge occurs. Examples of the device used include an air gap, a gas discharge tube, a thyristor, a triac, and the like.

The voltage limited type is a surge protection device that has a high impedance state when a surge is not applied and has a function of continuously reducing the impedance when the surge current and voltage rise.

Examples of devices used in voltage-limited surge protection devices include varistors, suppression diodes, and the like. The combination type is a surge protection device having a voltage-switching type device and a voltage-limiting type device.

Depending on the characteristics of the applied voltage, there are surge protectors that combine a gas discharge tube and a varistor to perform two kinds of operations: voltage switching, voltage limiting, or voltage switching and voltage restricting.

In order to prevent brain damage in the surge protection device, it is a device to limit the transient overvoltage due to thunder between the electric device and the ground in the single-phase alternating current or three-phase alternating current or direct current, and as a device for classifying the serge current, The device is installed.

A zinc oxide type varistor is generally used as the element for the surge protection device.

This zinc oxide type varistor is sequentially supplied with a voltage drop in accordance with the input level when a lightning stroke is repeatedly input.

1 and 2 show a surge protector applied to a conventional three-phase three-wire system.

As shown in Figs. 1 and 2, a conventional surge protection device, in particular, a plug-in module type surge protection device includes a body 2 having a receiving portion to which a circuit board is mounted; An L terminal 4, an N terminal 6, and a ground terminal 8 formed at both ends of the body 2; A first sub body B1 connecting the L and N terminals 4 and 6; a second sub body B2 connected to the ground terminal 8; And an energizing plate 7 connecting one end of the first sub body S2 and one end of the second sub body S2.

3 and 4 are views showing a conventional surge protection device applied to a three-phase four-wire system.

As shown in Figs. 3 and 4, the plug-in module type surge protector includes a body 2 having a receiving portion for mounting a circuit board thereon; An L terminal 4 and an N terminal 6 formed at one end of the body 2; A ground terminal 8 formed between the L terminal 4 and the N terminal 6; A first sub body B1 and a second sub body B2 connecting the L and N terminals 4 and 6, respectively; A third sub body (B3) arranged in parallel between the first sub body (B1) and the second sub body (B2) and connected to the ground terminal (8); And an energizing plate 7 connecting one end of the first sub body B1, the second sub body B2 and the third sub body B3.

However, in the conventional surge protection device, since the L terminal 4 and the ground terminal 8 are formed at one side of the body 2, the operator confuses the ground terminal to the N terminal, .

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and it is an object of the present invention to provide a surge protection device in which first and second sub bodies connecting the ground side second sub body and the L and N terminals are arranged in parallel in the same direction, 1 A connection bar for connecting the sub body and the second sub body is formed, and the ground and the positions of the L and N terminals can be easily changed by using the connecting bar, thereby preventing accidents caused by user's illusion And to provide a protective device.

The above object of the present invention is achieved by a plug-in module type surge protector applied to a three-phase three-wire system having an L-line, an N-line and a ground line, the surge protector comprising: An L terminal formed on one side of the body and connected to the L line; An N terminal formed on one side of the body and connected to an N line formed in parallel on one side of the L terminal; A ground terminal connected to a ground line formed on the other side of the body so as to face the N terminal; A first sub body connected to the L terminal; A second sub body connected to the N terminal and the ground terminal and disposed in parallel with the first sub body; And a terminal plate connecting one side of the first sub-body and one side of the second sub-body in an oblique direction.

And a bridge plate electrically connecting the first sub-body and the second sub-body and being connected to the third sub-body in a non-contact manner.

The bridge plate is formed with grooves for inserting the third sub body, and both ends are connected to the first sub body and the second sub body respectively.

And an energizing plate for electrically connecting the other end of the third sub body to the first sub body.

According to the present invention, the first sub body and the second sub body are provided so as to connect the ground side second sub body, the L terminal and the N terminal, respectively, and the first sub body and the second sub body The position of the ground and the L and N terminals can be easily changed by connecting them by the bar, and it is possible to prevent an accidental mistake by the user, thereby preventing the accident.

1 is a perspective view showing a surge protector applied to a conventional three-phase three-wire system,
FIG. 2 is a plan view of FIG. 1,
3 is a perspective view of a conventional surge protector applied to three-phase four wires,
FIG. 4 is a plan view of FIG. 3,
5 is a perspective view illustrating a surge protection device according to a first embodiment of the present invention.
FIG. 6 is a plan view of FIG. 5,
FIG. 7 is a perspective view of a surge protection device according to a second embodiment of the present invention. FIG.
FIG. 8 is a plan view of FIG. 7,
FIG. 9 is a perspective view of a surge protection device according to a third embodiment of the present invention. FIG.
FIG. 10 is a plan view of FIG. 9; FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. It does not mean anything.

In addition, the sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation, and the terms defined specifically in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user, operator It should be noted that the definitions of these terms should be made on the basis of the contents throughout this specification.

[First Embodiment]

FIG. 5 is a perspective view of a surge protector according to a first embodiment of the present invention, and FIG. 6 is a plan view of the surge protector according to the present invention.

The first embodiment relates to a plug-in module type surge protection device applied to a three-phase three-wire type having an L-line, an N-line and a ground line.

A sub-body having a varistor for removing surge voltage and a gas discharge tube; an L terminal 210, an N terminal 230 and a ground terminal 250 separated from the sub-body and connected to a power line, And a body 200 for removing the surge voltage in cooperation with the sub-body.

The sub-body is provided with a surge protection element, that is, a surge voltage removing varistor and a gas discharge tube.

That is, the sub-body is connected in parallel to a signal line between the hot line and the neutral line, and is connected between the neutral line (N line) and the ground line when the input power line voltage is a surge voltage higher than the breakdown voltage. And a gas discharge tube for absorbing a transient voltage passed through the varistor and converting the voltage into light energy. Such a sub-body belongs to the prior art, and a detailed description thereof will be omitted here.

The body 200 is coupled to an external case C, and the case C is formed with an insertion groove to allow the sub-body to be detached. In the following description of the other embodiments, the description of the case (C) will be omitted.

The body 200 has a receiving portion formed therein, a circuit board mounted thereon, and terminal connecting grooves 220 formed at both ends thereof.

An L terminal 210 to which an L line is connected is formed at one side of the body 200. The L line means a line in 3 phases.

Three-phase wires comply with KSC IEC 60446, L (upper) line set to brown, black and gray, N (neutral) line set to blue and ground wire set to green with yellow band.

And an N terminal 230 formed at one side of the body 200 and connected to an N line formed in parallel on one side of the L terminal 210. [ The N line means the neutral line on the third floor.

And a ground terminal 250 connected to a ground line formed on the other side of the body 200 so as to face the N terminal 230.

In the body 110, a first sub body 310 connected to the L terminal 210; And a second sub body 320 connecting the N terminal 230 and the ground terminal 250 and disposed in parallel with the first sub body 310.

A terminal plate 400 connected to one side of the N terminal 230 and formed in a diagonal direction and corresponding to the L terminal 210 is formed.

The terminal plate 400 is a conductive plate and has first and second engaging portions 401 and 402 formed at both ends thereof and a connecting portion 403 connecting the first and second engaging portions 401 and 402.

The first coupling portion is connected to the N terminal and the second coupling portion is disposed to correspond to the L terminal 210 and is formed as a through hole to which one connecting pin 311 of the first sub body 310 is coupled.

Since the first and second coupling portions 401 and 402 are formed at the opposite positions, the coupling portion 403 is formed diagonally diagonally.

Therefore, the position of L and N can be changed in a narrow space.

The terminal plate 400 is constructed in the body 200 and electrically bridges the ground terminal 250 and the L and N terminals 210 and 230 of the power line in different arranging directions, .

Hereinafter, the operation of the first embodiment will be described.

The operation of the plug-in module type surge protector according to the present invention is performed by connecting the first sub body 310 and the second sub body 320 to the body 200 and connecting the L and N terminals 210 and 230 of the body 200, And the power line L (N) is connected to each of the power lines.

In the case of a normal voltage, electricity flowing into the L terminal 210 flows through the N terminal 230 via the bridge plate 500.

If a surge voltage is generated, the surge voltage is transferred to the varistor and the gas discharge tube of the first sub body 310 through the L terminal 210 to remove the surge voltage. Then, the remaining voltage is removed through the terminal plate 400 2 sub-body 320, and then is discharged to the outside through the ground terminal 250 to protect the circuit.

[Second Embodiment]

FIG. 7 is a perspective view of a surge protector according to a second embodiment of the present invention, and FIG. 8 is a plan view of the surge protector according to the present invention.

The surge protection device according to the second embodiment is a plug-in module type surge protection device applied to a three-phase four-wire type having an L-line, an N-line and a grounding line, the surge protection device comprising: a body 200 ' An L terminal 210 'formed on one side of the body 200' and connected to the L line; A first sub body 310 'connected to the L terminal 210'; An N terminal 230 'formed on one side of the body 200' and connected to an N line formed in parallel on one side of the L terminal 210 '; A second sub body 320 'connected to the N terminal 230' and arranged in parallel with the first sub body 310 '; A ground terminal 250 'formed on the other side of the body 200' diagonally to the L terminal 210 'and the N terminal 230'; A third sub body 330 connected to the ground terminal 250 'and arranged in parallel between the first sub body 310' and the second sub body 320 'and connected to the ground terminal 250''); And a terminal plate 400 'connected to one side of the L terminal 210' in a linear direction and formed in a diagonal direction and arranged to correspond to the ground terminal 250 'in a linear direction.

The second embodiment is different from the first embodiment in that the first sub body 310 'and the second sub body 320' are electrically connected to each other and the ground terminal 250 'is connected to the first sub body 310' And a bridge plate 500 '.

The bridge plate 500 'is formed with a groove 520' in which the ground terminal 250 'is inserted and is not contacted. Both ends of the bridge plate 500' are connected to the first sub body 310 'and the second sub body 320' So as to be energized.

The terminal plate 400 'is a conductive plate material, and first and second coupling portions 401' and 402 'are formed at both ends of the first and second coupling portions 401' and 402 ' 403 '.

The first coupling portion 401 'is connected to the terminal 250-2' in a linear direction to the ground terminal 250 ', and the second coupling portion 402' is connected to the L terminal 210 ' And is formed as a through hole to which one connecting pin 311 'of the first sub body 310' is coupled.

Hereinafter, the operation of the second embodiment will be described.

The operation of the plug-in module type surge protector according to the present invention is similar to the operation of the plug-in module type surge protector in that the first sub body 310 'to the third sub body 330' are coupled to the body 200 ' The power lines L (N) are connected to the terminals 210 'and 230', respectively.

In the case of a normal voltage, electricity flowing into the L terminal 210 'flows through the N terminal 230' via the bridge plate 500 '.

When a surge voltage is generated, the surge voltage flowing into the L terminal 210 'flows to the second sub body 320' through the first sub body 310 'and the terminal plate 400' And is discharged to the outside through the ground terminal 250 'to protect the circuit.

[Third Embodiment]

FIG. 9 is a perspective view of a surge protector according to a third embodiment of the present invention, and FIG. 10 is a plan view of FIG. 9.

The surge protection device according to the third embodiment is a plug-in module type surge protection device applied to a three-phase four-wire type having an L-line, an N-line and a grounding line. The surge protection device includes a body 200 " An L terminal 210 "which is connected to an L line; A first sub body 310 '' connected to the L terminal 210 ''; An N terminal 230 "formed at one side of the body 200" and to which an N line connected in parallel to one side of the L terminal 210 "is connected; a body 200" A ground terminal 250 "formed on the other side of the ground terminal 250 and connected to a ground line; A second sub body 320 'connected to the N terminal 230' 'and the ground terminal 250' and arranged in parallel with the first sub body 310 ''; A third sub body 330 '' disposed in parallel between the first sub body 310 '' and the second sub body 320 ''; a second sub body 330 '' disposed between the first sub body 310 '' and the second sub body 320 ' And a terminal plate 400 "for connecting one side of the sub-body 320" in an oblique direction.

The third embodiment is similar to the second embodiment but electrically connects one end of the first sub-body 310 "and the second sub-body 320", and the third sub-body 330 " And the bridge plate 500 "

The bridge plate 500 "is formed with a groove 520" to be inserted into the third sub-body 330 "in a non-contact manner. Both ends of the bridge plate 500" are bent upward to form the first sub- And is placed on the sub-body 320 "to be energized.

And a terminal plate 400 '' for electrically connecting the second sub-body 320 '' and the third sub-body 330 ''.

The terminal plate 400 '' is a conductive plate material and has first and second engaging portions 401 'and 402' at both ends thereof and a connecting portion 401 '' for connecting the first and second engaging portions 401 ' 403 ").

The first engaging portion 401 "is connected to the ground terminal 230" and the second engaging portion 402 "is connected to the one connecting pin 331" of the third sub body 330 " .

And an energizing plate 600 "for electrically connecting the other ends of the first sub-body 310" and the third sub-body 330 ".

Hereinafter, the operation of the third embodiment will be described.

The operation of the plug-in module type surge protector according to the present invention is similar to the operation of the plug-in module type surge protector in that the first sub body 310 "to the third sub body 330" are coupled to the body 200 " The power lines L (N) are connected to the terminals 210 "and 230 ", respectively.

In the case of a normal voltage, electricity flowing into the L terminal 210 "flows through the N terminal 230 " through the second sub body 320" via the bridge plate 500 ".

On the other hand, when a surge voltage is generated, the surge voltage applied to the L terminal 210 "is firstly erased from the first sub body 310 ", and the third sub body 330 & Flows through the terminal plate 400 "to the second sub body 320 ', and then is discharged to the outside through the ground terminal 250" to protect the circuit.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, It is obvious that the claims fall within the scope of the claims.

200: body 210: terminal L
230: N terminal 250: ground terminal
310: first sub body 320: second sub body 320
330: third sub-body

Claims

L-line, an N-line, and a ground line, the surge protection device comprising:
A body having a receiving portion;
An L terminal formed on one side of the body and connected to the L line;
An N terminal formed on one side of the body and connected to an N line formed in parallel to one side of the L terminal;
A ground terminal connected to a ground line formed on the other side of the body so as to face the N terminal;
A first sub body connected to the L terminal;
A second sub body connected to the N terminal and the ground terminal and disposed in parallel with the first sub body;
A terminal plate connecting one side of the first sub-body and one side of the second sub-body in an oblique direction;
Wherein the plug-in module is a plug-in module type surge protection device.

L-line, an N-line, and a ground line, the surge protection device comprising:
A body having a receiving portion;
An L terminal formed on one side of the body and connected to the L line;
A first sub body connected to the L terminal;
An N terminal formed on one side of the body and connected to an N line formed in parallel to one side of the L terminal;
A second sub body connected to the N terminal and arranged in parallel with the first sub body;
A ground terminal formed on the other side of the body diagonally to the L terminal and the N terminal;
A third sub-body connected in parallel to the ground terminal and connected between the ground terminal and the third sub-body, between the first sub-body and the second sub-body;
A terminal plate connected to one side of the L terminal in a linear direction, the terminal plate being formed in a diagonal direction and arranged to correspond to the ground terminal in a linear direction;
Wherein the plug-in module is a plug-in module type surge protection device.

3. The method of claim 2,
And electrically connecting the first sub body and the second sub body,
And a bridge plate connected to the third sub-body in a non-contact manner.

The method of claim 3,
Wherein the bridge plate is formed with grooves for inserting the third sub body, and both ends of the bridge plate are connected to the first sub body and the second sub body, respectively.

L-line, an N-line, and a ground line, the surge protection device comprising:
A body having a receiving portion;
An L terminal formed on one side of the body and connected to the L line;
A first sub body connected to the L terminal;
An N terminal formed on one side of the body and connected to an N line formed in parallel to one side of the L terminal;
A ground terminal formed on the other side of the body 200 " so as to face the N terminal and connected to a ground line;
A second sub body connected to the N terminal and the ground terminal and disposed in parallel with the first sub body;
A third sub-body disposed in parallel between the first sub-body and the second sub-body;
A terminal plate connecting one side of the third sub-body and one side of the second sub-body in an oblique direction;
Wherein the plug-in module is a plug-in module type surge protection device.

6. The method of claim 5,
One end of the first sub-body is electrically connected to one end of the second sub-body,
And a bridge plate connected to the third sub-body in a non-contact manner.

The method according to claim 6,
Wherein the bridge plate is formed with grooves for inserting the third sub body, and both ends of the bridge plate are connected to the first sub body and the second sub body, respectively.

6. The method of claim 5,
And an energizing plate for electrically connecting the other end of the third sub body with the other end of the third sub body.