KR20170077631A

KR20170077631A - Assembling-dismantling type power supply apparatus

Info

Publication number: KR20170077631A
Application number: KR1020150187710A
Authority: KR
Inventors: 이경재; 이종호; 김봉균; 이민찬
Original assignee: 주식회사 유시스
Priority date: 2015-12-28
Filing date: 2015-12-28
Publication date: 2017-07-06
Also published as: KR101796031B1

Abstract

(SPD, earth leakage breaker, POE hub, and multi-outlet) required for securely supplying power supplied from the outside to an external device, and more particularly, Are connected in a face-to-face manner so that they can be separated from each other without being connected to each other by a wire, thereby eliminating the need for a connecting line and facilitating installation, thereby reducing the time, effort, Supply device.
The SPD block is connected directly to the SPD block to receive and supply power to the SPD block. The SPD block receives the power from the SPD block, And a POE hub block connected directly to the earth leakage breaker block for supplying power to the power source and supplying power to the power source and data input from the outside via one UTP cable, Wherein the SPD block, the earth leakage breaker block and the POE hub block are connected in surface contact so as to be detachable in order, and the POE hub block is equipped with a multi-outlet so that the insertion port can be exposed to the outside .

Description

[0001] ASSEMBLING-DISMANTLING TYPE POWER SUPPLY APPARATUS [0002]

(SPD, earth leakage breaker, POE hub, and multi-outlet) required for securely supplying power supplied from the outside to an external device, and more particularly, Are connected in a face-to-face manner so that they can be separated from each other without being connected to each other by a wire, thereby eliminating the need for a connecting line and facilitating installation, thereby reducing the time, effort, Supply device.

2. Description of the Related Art Generally, various types of power protection devices are provided to stably supply power supplied from a power supply source and supplied to a load end. In many cases, the power source protection device is disposed in the housing. For example, a power supply safety supply device is mounted and arranged in an enclosure to supply power from an external source to peripheral devices (e.g., a camera, a network camera, various transmission equipment, etc.).

FIG. 1 is a block diagram showing components of a conventional power supply safety supply for a housing and related peripheral equipment.

1, an existing enclosure power supply safety device 100 includes an SPD (Surge Protective Device, hereinafter referred to as "SPD") 1, an earth leakage breaker, a multi-outlet 3, And an adapter (4).

The SPD 1 receives a power input to the enclosure and prevents the surplus from being output. The SPD 1 senses, reduces, and removes not only the surge component included in the input power source but also the surge component caused by an external force naturally occurring. In general, it refers to a transient abnormal voltage that enters the equipment to be written, and the damage of electronic equipment, electronic parts, software and malfunction due to such surge penetration occurs. Therefore, it is necessary to adopt the SPD (1) to protect the equipment from the surge.

The power output through the SPD 1 is input to the earth leakage breaker 2 via a wire. The earth leakage breaker (2) receives and outputs the power source, and performs an operation for detecting a leakage current. The earth leakage breaker (2) plays a role of preventing the damage of the connection device through the operation of cutting off the power supply when a short circuit is detected. Generally, the above-described earth leakage breaker is a device for preventing electric shock, leakage fire, equipment damage, and the like.

The power source having passed through the earth leakage breaker (2) is supplied to the multi-outlet (3) through the electric wire. Then, various electric wires are connected to the multi-outlet 3 so that the power can be supplied to the external equipment and peripheral parts. On the other hand, when the external equipment is the camera 7, the power supplied from the multi-outlet needs to be converted to a rated power to be supplied to the camera. Accordingly, the power supplied from the multi-outlet 3 is converted into a power source for camera operation in the adapter 4, and then supplied to the camera 7.

Specifically, when the external equipment to be supplied with power is a camera 7 such as an IP camera or a network camera, the camera 7 is connected to the SPD 1, the earth leakage breaker 2, the multi-outlet 3, (4).

The adapter (4) supplies power to the camera (7) through a power supply line (PL). On the other hand, the camera 7 needs to receive data such as control data from the outside. Therefore, the enclosure may be further provided with parts for supplying the camera 7 with data transmitted from the outside.

Specifically, an FDF (Fiber Distribution Frame) 5 and an optical converter 6 are further mounted and disposed in the housing. Camera data transmitted from the outside is supplied to the camera 7 via the FDF 5 and the optical converter 6 through an optical cable. That is, the optical converter 6 supplies data to the camera 7 through a data supply line DL disposed separately from the power supply line PL.

Meanwhile, the optical converter 6 may be connected to the multi-outlet 3 and operated with a safe power supply.

As described above, the existing power supply safety supply device for the enclosure is constructed by connecting the SPD 1, the earth leakage breaker 2, the multi-receptacle 3 and the adapter 4 to each other. However, the conventional power source safety supply device for the enclosure is connected to each other through electric wires as shown in FIG.

As shown in FIG. 3, the SPD 1, the earth leakage breaker 2, the multi-outlet 3 and the adapter 4 are connected to each other by electric wires. As a result, there is a disadvantage in that the structure inside the enclosure is very complicated due to the connection of the complex wires.

As shown in FIG. 2, the conventional components of the power supply for power supply for enclosure do not have a structure that can be connected to each other. That is, since they can not be connected through stable surface contact (they have no regular surface and have a very irregular structure), they must be connected to each other through wires.

As a result, since the existing power supply safety devices for the enclosures are required to mount the respective components separately in the enclosure, and they must be connected to each other by electric wires, the cost, time and effort .

As shown in FIG. 3, since the conventional power supply safety device for enclosure and its peripheral components (FDF, optical converter, etc.) are very complicatedly connected in the housing and can not be arranged, It has a disadvantage not only in terms of disadvantages to maintenance but also inefficiency in terms of space utilization.

Korean Patent Registration No. 10-0890624 (2009. 03. 27. Announcement, title of invention: intelligent power protection device)

Disclosure of Invention Technical Problem [8] The present invention has been made to solve the above problems of the prior art, and it is an object of the present invention to provide a power supply system for a vehicle, This is a separate and combined power supply for the enclosure that can reduce the time, effort, and cost for installation in the enclosure by eliminating the need for a connection line and facilitating installation, And an object thereof is to provide a device.

In addition, the present invention can combine the components so as to be detachable, thereby making it possible to easily replace only the corresponding components in the event of failure of a specific component, thereby reducing the time, effort, And to provide a power supply safety supply device.

Further, according to the present invention, since the shape of the combination of the components is not only a straight shape but also an L-shaped bending shape, it can be installed in a suitable manner in accordance with the space structure of the enclosure and various arrangements with other components The present invention has been made in view of the above problems.

According to an aspect of the present invention, there is provided a split-coupled power supply safety device for an enclosure, comprising: an SPD block for receiving a power input into a housing and outputting the surplus power; And a power supply unit connected to the earth leakage breaker block for receiving power from the power supply unit and receiving data from an external source through a UTP And the POE hub block is connected to the POE hub block in such a manner that the SPD block, the earth leakage breaker block, and the POE hub block are separated in order, and the POE hub block is exposed to the outside And a multi-outlet is built in.

Here, the SPD block is constituted by an SPD case having an SPD built therein, the earth leakage breaker block is constituted by an earth leakage breaker case having a built-in earth leakage breaker, and the POE hub block is composed of a POE hub case having a POE hub, The SPD case includes a connector formed on one side surface of the earth leakage breaker, and the other connector is formed on the other side of the case. And the POE hub case is formed with a connector which can be inserted and coupled with a connector formed on the other side of the earth leakage breaker.

According to the present invention, there is provided a separated and coupled power supply safety supply device for an enclosure, comprising components (SPD, an earth leakage breaker, and a POE hub) for safely supplying power supplied from the outside to an external device, And multi-outlets) are connected to each other in a face-to-face manner so that they can be detached in order without being connected to each other by wires. Therefore, it is possible to reduce the time, effort, and cost .

In addition, since the components are detachably coupled to each other, it is possible to easily replace only the components when a specific component fails, thereby saving time, effort, and cost for maintenance.

In addition, the present invention is configured such that the shape of the components is not only linear but also L-shaped, so that it can be installed properly in accordance with the space structure of the enclosure, There is an effect that can be changed.

1 is a block diagram of a configuration of a power supply safety supply device for a conventional enclosure.
2 is a schematic view showing an actual shape and a connection relationship of components constituting a power supply safety supply device for a conventional enclosure.
FIG. 3 is a schematic diagram showing a state in which power supply safety supplies for existing enclosures are arranged and connected in an actual enclosure. FIG.
FIG. 4 is a configuration diagram of a separable coupled type power supply safety device for an enclosure according to an embodiment of the present invention.
5 is a front view showing a coupling relationship of the components of the detachably coupled type power supply for an enclosure according to an embodiment of the present invention.
FIG. 6 is an exemplary view showing various combined configurations of the separable coupled type power supply safety device for an enclosure according to an embodiment of the present invention.
FIG. 7 is an exploded perspective view illustrating a linear coupling structure of a separable coupled type power supply safety device for an enclosure according to an embodiment of the present invention. Referring to FIG.
FIG. 8 is an exploded perspective view for explaining a bending (L-shaped) coupling structure of a separable coupled type power supply safety supply device for an enclosure according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator.

FIG. 4 is a configuration diagram of a separable coupled type power supply safety device for an enclosure according to an embodiment of the present invention.

4, the separable coupled type power supply safety device 100 for a vehicle according to an embodiment of the present invention is largely composed of an SPD block 10, an earth leakage breaker block 30 and a POE hub block 50 do.

The SPD block 10, the earth leakage breaker block 30 and the POE hub block 50 refer to the existing SPD 1, the earth leakage breaker 2 and the POE hub itself used for supplying data together with the power source But rather a structure that is deformed into a structure capable of mutual contact.

The SPD block 10 according to the present invention basically performs an operation of receiving power inputted into the housing and preventing the surge from being output. However, the SPD block 10 is not formed of the conventional SPD but is structurally coupled to the adjacent components, that is, the earth leakage breaker block 30 in a stable detachable manner, .

The earth leakage breaker block 30 is directly connected to the SPD block 10 to receive and output the power source, and performs an operation for detecting an electrical leak. That is, the earth leakage breaker block 30 basically performs a leakage detection operation and is directly connected to the SPD block 10.

Specifically, the earth leakage breaker block 30 is not indirectly connected to the SPD block 10 by electric wires, but has a structure directly connected by contact. Therefore, the earth leakage breaker block 30 is not limited to the conventional earth leakage breaker itself shown in FIG. 2 but may be stably separated from adjacent components, that is, the SPD block 10 and the POE hub block 50 And a structure for maintaining a stable posture after bonding is further added.

The SPD block 10 is directly coupled to one side of the earth leakage breaker block 30 and the POE hub block 50 is directly coupled to the other side. That is, the SPD block 10 and the POE hub block 50 are coupled to both sides of the earth leakage breaker block 30 by surface contact.

The POE hub block 50 is directly connected to the earth leakage breaker block 30 and is supplied with the power supply and performs an operation of supplying the supplied power and data input from the outside to the outside via one UTP cable .

That is, the POE hub block 50 basically supplies power and data through one cable, and is directly connected to the earth leakage breaker block 30.

Specifically, the POE hub block 50 is not indirectly connected to the earth leakage breaker block 30 by electric wires but has a structure directly connected by contact. Therefore, the POE hub block 50 is not only composed of the POE hub itself but also is connected to the adjacent components, that is, the earth leakage breaker block 30 in a stable detachable manner, Structure is further added.

The SPD block 10, the earth leakage breaker block 30 and the POE hub block 50 are essential features of the present invention. The SPD block 10, the earth leakage breaker block 30, The block 10, the earth leakage breaker block 30 and the POE hub block 50 are coupled in surface contact so as to be detachable in order.

That is, the SPD block 10, the earth leakage breaker block 30 and the POE hub block 50 are adjacently joined in order, but are not indirectly coupled by electric wires but directly coupled through surface contact, Type power supply safety device. The SPD block 10, the earth leakage breaker block 30, and the POE hub block 50 are surface-contact-coupled to each other by a detachable structure, that is, a detachably coupled structure.

Accordingly, the separable coupled type power supply safety device 100 for a housing according to the present invention, in which the SPD block 10, the earth leakage breaker block 30, and the POE hub block 50 are coupled to each other, And since the wires are not used, they are arranged in a simple state and are not complicated and can be easily arranged in the housing.

Meanwhile, the POE hub block 50 includes a multi-receptacle 3 so that the insertion port can be exposed to the outside. Accordingly, the power input to the POE hub block 50 can be supplied to the peripheral device or part, for example, the optical converter 6, through the built-in multi-outlet.

As described above, the breakaway type power supply safety supply device 100 for a housing according to the present invention includes the POE hub block 50 having the SPD block 10, the earth leakage breaker block 30 and the multi-outlet 3, And they are adjacently joined to each other in order, coupled to each other in a detachable structure, a structure detachable coupling structure, and coupled by mutual surface contact.

The external power source may be supplied to an external device, that is, the camera 7, through the SPD block 10, the earth leakage breaker block 30, and the POE hub block 50. Since the POE hub 50 constituting the POE hub block 50 can supply the power and the data through one UTP cable, the POE hub block 50 transmits the data transmitted through the optical cable to the FDF 5, And then supplied to the camera 7 through the power / data supply line CL, which is a UTP cable, together with the power transmitted through the earth leakage breaker.

5 shows an actual coupling structure of the separable coupled type power supply safety device 100 for an enclosure according to the present invention. 5, the SPD block 10, the earth leakage breaker block 30, and the POE hub block 50, unlike the SPD, the earth leakage breaker and the POE hub, And has a structure that can be structurally coupled by surface contact.

5, the SPD block 10, the earth leakage breaker block 30, and the POE hub block 50 are connected to each other by direct surface contact instead of being connected to each other by electric wires. I have.

6 is a plan view of the SPD block 10, the earth leakage breaker block 30, and the POE hub block 50. As shown in FIG. 6, As described above, can be completed in various structures.

That is, the separable coupled type power supply safety device 100 for an enclosure according to the present invention may be configured so that the shape of the coupled components 100 is not only linear but also L-shaped. 6 (a) shows a horizontally straight type separable coupled type power supply safety device for a casing, FIG. 6 (b) shows a vertically linear type separable coupled type power supply safety device for a casing, (C) shows an L-shaped bending type split-coupled power supply safety device for an enclosure.

Hereinafter, the self-structure of the SPD block 10, the earth leakage breaker block 30, and the POE hub block 50 and the coupling structure between the SPD block 10 and the POE hub block 50 will be described in detail with reference to FIGS. 5 to 8 . FIG. 7 is an exploded perspective view illustrating a linear coupling structure of the separable coupled type power supply safety device for an enclosure according to an embodiment of the present invention, and FIG. 8 is an exploded perspective view illustrating a bending (L-shaped) coupling structure.

5 to 8, the SPD block 10 is composed of an SPD case 11 in which an SPD is embedded. The earth leakage breaker block 30 includes an earth leakage breaker case 31 having an earth leakage breaker, And the POE hub block 50 comprises a POE hub case 51 in which a POE hub is embedded.

That is, the SPD block 10 is constructed such that a conventional SPD is built in a SPD case 11 having a rectangular cross section, and the circuit breaker block 30 includes a conventional circuit breaker having a square cross- And the POE hub block 50 is constructed such that the conventional POE hub is built in the POE hub case 51 having a rectangular cross section.

Since the SPD case 11, the earth leakage breaker case 31 and the POE hub case 51 have a rectangular parallelepiped shape, they each have a front surface, a rear surface, an upper surface, a lower surface, and both side surfaces (one side surface and the other surface side).

In the present invention, the front surface 11a of the SPD case 11, the front surface 31a of the earth leakage breaker case 31, and the front surface 51a of the POE hub case 51 are arranged in the state shown in FIG. 5 Corresponds to the front view shown in the SPD block 10, the earth leakage breaker block 30, and the POE hub block 50.

5, each of the bottom surfaces corresponds to the bottom surface, the top surface, which is the surface opposite to the bottom surface, corresponds to the top surface, and the other surfaces The sides are defined as both sides. In the state of FIG. 5, the side surface formed on the left side is defined as one side surface, and the side surface formed on the right side with respect to each front surface is defined as a side surface As shown in Fig.

5 shows that the SPD block 10 and the earth leakage breaker block 30 are arranged such that the other side 11c of the SPD case 11 and one side 31b of the earth leakage breaker case 31 are connected to each other And the other side surface 31c of the earth leakage breaker case 11 and one side surface 51b of the POE hub case 51 are in surface contact with each other As shown in FIG.

As described above, the SPD block 10, the earth leakage breaker block 30, and the POE hub block 50 have a structure in which they are continuously in surface contact with each other. That is, in a state in which the bonding is maintained, the contact state is kept in face-to-face contact with each other. To this end, the SPD block 10, the earth leakage breaker block 30 and the POE hub block 50 are configured to be mutually male and female connectors.

Specifically, one of the male connector and the female connector is formed on one side 31b of the earth leakage breaker case 31, and the remaining connector is formed on the other side 31c. That is, when the male connector is formed on one side 31b of the earth leakage breaker case 31, an arm connector is formed on the other side 31c of the earth leakage breaker case 31. [

5 to 8 illustrate that a female connector is formed on one side 31b of the earth leakage breaker case 31 and a male connector on the other side 31c of the earth leakage breaker case 31 is formed. The male connector maintains the protruded state, and the female connector remains in a depressed state.

The SPD case 11 is formed with a connector which can be inserted into and coupled with a connector (hereinafter referred to as "one side connector 33 of the earth leakage breaker case") formed on one side surface of the earth leakage breaker. More specifically, a connector (hereinafter referred to as "the other side connector 15 of the SPD case") is formed on the other side surface 11c of the SPD case, Side connector 33 of the case.

Therefore, if one side connector 33 of the earth leakage breaker case formed on one side 31b of the earth leakage breaker case is an arm connector, the other side connector (not shown) of the SPD case formed on the other side 11c of the SPD case Conversely, if the one side connector 33 of the earth leakage breaker case is a male connector, the other side connector 15 of the SPD case is a female connector. 5 to 8 illustrate that the other side connector 15 of the SPD case is a male connector if the one side connector 33 of the earth leakage breaker case is an arm connector.

On the other hand, the POE hub case 51 is formed with a connector which can be inserted and coupled with a connector (hereinafter referred to as "the other side connector 35 of the earth leakage breaker case") formed on the other side surface of the earth leakage breaker. Specifically, a connector is formed on at least one of the one surface 51b and the upper surface 51d of the POE hub case, and one of the one side surface 51b and the upper surface 51d of the POE hub case, The connector on at least one surface is inserted and coupled with a connector (hereinafter referred to as "the other side connector 35 of the earth leakage breaker case") formed on the other side surface 31c of the earth leakage breaker.

The POE hub block 50 may be provided only with a connector (hereinafter referred to as "one side connector 53 of POE hub case") formed on one side 51b of the POE hub case, (Hereinafter referred to as "POE hub case upper surface connector 55") formed on the upper surface 51d of the POE hub case, Both of the top surface connectors 55 of the connector housing 60 may be provided.

However, as shown in FIGS. 5 to 8, it is preferable that both the one side connector 53 of the POE hub case and the top side connector 55 of the POE hub case are provided. If both of the connectors are provided, the separable coupled type power supply safety device for a housing according to the present invention may be arranged in a straight line or in a straight line shape in consideration of the internal structure of the enclosure, the size of the enclosure, And can be formed into an L-shaped bending shape, and as a result, there is an advantage that it can cope with various housing conditions appropriately.

The one side connector 53 of the POE hub case and the top side connector 55 of the POE hub case are connected to the other side connector 35 of the earth leakage breaker case formed on the other side 31c of the earth leakage breaker case. And the other side connector (35) of the earth leakage breaker case is a male connector, it is formed as a female connector. 5 to 8, the other side connector 35 of the earth leakage breaker case is a male connector, and the one side connector 53 of the POE hub case and the upper side connector 55 of the POE hub case are female connectors .

When the SPD block 10 and the earth leakage breaker 30 are connected to each other through the side connector 33 of the earth leakage breaker case and the other side connector 15 of the SPD case, And can be joined in a more rigid state by using a joining member. For example, in a state where the SPD block 10 and the earth leakage breaker block 30 are in surface contact with each other, the corner portions can be additionally coupled to each other by bolting or the like.

The SPD block 10 and the earth leakage breaker 30 connected to the POE hub block 50 may constitute a separable coupled type power source safety supply device for a vehicle according to the present invention. When the other side connector (35) of the circuit breaker case is inserted into the one side connector (53) of the POE hub case, it is possible to construct a linearly shaped breakaway type power source safety supply device for the enclosure. When the connector 35 is inserted into the upper surface connector 55 of the POE hub case, an L-shaped bending-shaped separable coupling type power supply for the enclosure can be constructed.

As such, the discrete-coupled power supply safety device for an enclosure according to the present invention includes both the one-side connector 53 of the POE hub case and the top surface connector 55 of the POE hub case in the POE hub block 50, It is possible to construct various types of separable and coupled type power supply safety devices for an enclosure, and it is possible to cope with the characteristics and conditions of the enclosure appropriately.

Meanwhile, since the SPD block 10 receives power from the outside, the split-coupled type power supply safety supply device for a housing having the above-described configuration features and the combined structural features receives power from the outside. A power input terminal 13 is formed on the SPD case side surface 11b.

Also, the POE hub block 50 includes a multi-receptacle 3, and the POE hub block 50 is built in such that the insertion port can be exposed to the outside as shown in FIGS. Therefore, it is not necessary to separately dispose the multi-receptacle in the enclosure. This eliminates the need for wires for multiple receptacle connections.

In addition, the POE switch block 57 must be formed in the POE hub block 50 to be connected to an external device or the like. Therefore, as shown in FIGS. 5 to 8, the POE switch 57 is formed on the front surface 51a of the POE hub case.

Meanwhile, the SPD block 10, the earth leakage breaker block 30, and the POE hub block 50 are mutually surface-contact-coupled to each other to constitute a disconnection type power supply safety device for an enclosure according to the present invention. The combined power supply safety supply device preferably has a structure in which unnecessary protruding portions are not formed in order to improve the appearance, particularly to facilitate disposition in the housing and to prevent unnecessary space occupation.

To this end, one side 11b of the SPD case, the other side 11c of the SPD case, one side 31b of the earth leakage breaker case, the other side 31c of the earth leakage breaker case, The earth leakage breaker case 31 and the POE hub case 51 so that the side surface 51b and the other side surfaces 51c of the POE hub case can have the same shape (for example, the same square, etc.) .

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined by the following claims.

PL: Power supply line DL: Data supply line
CL: Power / data supply line 1: Surge Protective Device (SPD)
2: Earth leakage breaker 3: Multi-outlet
3a: Outlet switch 4: Adapter
5: FDF (Fiber Distribution Frame) 6: Optical converter
7: Camera 10: SPD block
11: SPD case 11a: Front of SPD case
11b: one side of the SPD case 11c: the other side of the SPD case
13: Power input terminal 15: The other side connector of SPD case
30: Earth leakage breaker block 31: Earth leakage breaker case
31a: Front side of the circuit breaker case 31b: One side of the circuit breaker case
31c: The other side of the circuit breaker case
33: One side connector of the earth leakage breaker case
35: The other side connector of the earth leakage breaker case
50: Power over Ethernet (POE) hub block
51: POE hub case 51a: POE front side of the hub case
51b: one side of the POE hub case 51c: the other side of the POE hub case
51d: Top surface of POE hub case
53: One side connector of POE hub case
55: Top surface connector of POE hub case
57: POE switch
100: Separate coupling power supply for enclosure

Claims

An SPD block for receiving a power input to the housing and for outputting the surge; and an earth leakage circuit breaker block directly connected to the SPD block for receiving and outputting the power, And a POE hub block connected to the power supply and supplying power to the power supply and data input from the outside via one UTP cable,
Wherein the SPD block, the earth leakage breaker block, and the POE hub block are coupled in surface contact so as to be detachable in order, and the POE hub block is provided with a multi-receptacle so that the insertion port may be exposed to the outside. Power safety supply.

The method according to claim 1,
Wherein the SPD block is constituted by an SPD case in which an SPD is embedded and the earth leakage breaker block is constituted by an earth leakage breaker case in which an earth leakage breaker is built in and the POE hub block is constituted by a POE hub case in which a POE hub is incorporated, The SPD case may have a connector formed on one side of the circuit breaker, and the other connector may be formed on the other side of the case. Wherein the POE hub case is formed with a connector that can be inserted and coupled with a connector formed on the other side of the earth leakage breaker.