KR102550720B1 - Solar Multi-String 12-Channel Junction Box - Google Patents

Abstract

A solar multi-string 12-channel junction box is disclosed. The solar multi-string 12-channel junction box according to an embodiment of the present invention is a box structure in which a storage space of a predetermined volume is formed inside, a transparent window for visually observing the inside is installed on one side, and the inside is on one side. a housing main body for mounting a pressure regulator; An input connector for mounting a plurality of connectors forming each channel coupled with the photovoltaic module at regular intervals to one side of the housing body portion; An output connector for mounting a plurality of connectors forming each channel coupled to the inverter at a predetermined interval on the other side of the housing body portion; a surge protector mounted inside the housing main body and configured to flow to a ground line when the voltage of DC power transmitted from the input connector exceeds a predetermined range; and a fuse mounting unit mounted inside the housing main body and operating when a current exceeding a predetermined range flows inside a circuit formed by the input connector, the output connector, and the surge protector to form an open circuit to block current flow. ; is included as the gist of the configuration.
According to the present invention, an independent channel can be configured for each MPPT, the occurrence of a pressure difference between the inside and outside can be prevented, and the internal state can be easily checked with the naked eye, thereby preventing accidents due to various accidents and abnormal currents, thereby preventing a solar power generation system. It is possible to provide a solar multi-string 12-channel junction box including a configuration capable of protecting.

Description

Solar Multi-String 12-Channel Junction Box}

The present invention relates to a solar multi-string 12-channel junction box, and more particularly, to a solar multi-string 12-channel junction box including a configuration capable of protecting a solar power generation system by blocking various accidents and abnormal currents.

In general, a photovoltaic power generation system is a technology that is being actively researched and developed in advanced countries as a countermeasure against global environmental problems and diversification of future energy sources thanks to the non-pollution and infinity of solar energy.

A photovoltaic power generation system is composed of a solar panel module that generates power from sunlight, an inverter that converts DC power into AC power, and a junction box that supplies DC power generated from the solar panel module to the inverter.

At this time, the junction box configures an electrical circuit to connect several solar panel modules in parallel in order to generate a lot of power.

The junction box, that is, a solar junction box is a device that collects DC current generated from a plurality of solar cell modules included in a photovoltaic power generation system and outputs it to an inverter included in the photovoltaic power generation system.

As shown in FIG. 1, such a junction box for photovoltaic power generation has various modules such as fuses, busbars, circuit breakers, etc. installed therein, and a cable on the side of the solar panel module is inserted into the inside and connected to the fuse, and the fuse and Each module also has a cable wired and consequently connects to the cable side that is connected to the inverter.

As this configuration is configured inside the junction box and cables are wired, tangles between cables may occur, resulting in damage to cables due to friction between each cable, resulting in problems such as short circuits, and fuses having more than 12Ch In the case of a junction box, when wiring wired cables, it is difficult to easily recognize which modules are connected to each other, resulting in reduced wiring work time efficiency and subsequent management.

In addition, in the case of a multi-channel junction box according to the prior art, DC power received from the solar module is common and transmitted to the inverter. In this case, the MPPT function of the inverter becomes useless and it is difficult to expect high conversion efficiency declared by the manufacturer.

In addition, in the case of a multi-channel junction box according to the prior art, it is a structure in which a safety accident may occur due to a pressure difference between the inside and the outside, and there is a cumbersome problem in that the inside must be observed by directly opening the cover to monitor the internal state.

Therefore, there is a need for a technique capable of solving the above-mentioned problems according to the prior art.

Korean Registered Patent Publication No. 10-1813578 (registration date: December 22, 2017)

The purpose of the present invention is to configure independent channels for each MPPT, to prevent the occurrence of internal and external pressure differences, and to easily check the internal state with the naked eye, thereby preventing accidents due to various accidents and abnormal currents in the solar power generation system. It is to provide a solar multi-string 12-channel junction box that includes a configuration capable of protecting.

Solar multi-string 12-channel junction box according to one aspect of the present invention for achieving this object has a box structure in which a storage space of a predetermined volume is formed inside and a transparent window for visually observing the inside is installed on one side. And, the housing body portion for mounting the internal pressure regulator on one side; An input connector for mounting a plurality of connectors forming each channel coupled with the photovoltaic module at regular intervals to one side of the housing body portion; An output connector for mounting a plurality of connectors forming each channel coupled to the inverter at a predetermined interval on the other side of the housing body portion; a surge protector mounted inside the housing main body and configured to flow to a ground line when the voltage of DC power transmitted from the input connector exceeds a predetermined range; and a fuse mounting unit mounted inside the housing main body and operating when a current exceeding a predetermined range flows inside a circuit formed by the input connector, the output connector, and the surge protector to form an open circuit to block current flow. It may be a composition including;

In one embodiment of the present invention, the solar multi-string 12-channel connection box is mounted on the center of the side of the housing body, is mounted on the input connector, and is connected to the output connector for each channel in a circuit, respectively. It may be configured to further include; a DC switch of a structure that blocks or connects the channel of the.

In this case, the input unit connectors are composed of 12 independent channels, each of which is arranged in three rows of four.

In addition, the output connector is composed of 12 independent channels corresponding to the input connector, and is arranged in three rows of four.

In addition, the DC switch is mounted so as to independently drive three switches that block or connect four channels at once.

In one embodiment of the present invention, the photovoltaic multi-string 12-channel junction box is continuously mounted along the inner surface of the housing body portion, and an abnormal occurrence of the internal pressure control unit or a temperature inside the housing body portion is set at a predetermined threshold. It operates when the temperature exceeds the inner surface of the housing main body, and is a structure that seals the inside of the housing in a form of wrapping, and is formed of a heat-resistant curtain formed of a material having flame retardant and heat-resistant characteristics; a first forcible separation unit mounted on one side of the side of the housing body unit, disposed at a mounting portion of the input unit connector, and having a structure in which the input unit connector is detached from the housing body unit by working together when the heat-resistant curtain forming unit operates; and a second forcible separation unit mounted on one side of the side of the housing body unit, disposed at the mounting portion of the output unit connector, and operating together when the heat-resistant curtain forming unit operates to separate the output unit connector from the housing body unit. It may be a configuration that includes.

In one embodiment of the present invention, the heat-resistant curtain forming part has a cylindrical tube structure that is continuously mounted along the inner surface of the housing main body and mounted at the same height as the inner surface of the housing main body, and is cut in the inner direction. A mounting frame made of a material having improved flame retardant and heat resistant properties; It is mounted in a folded state inside the mounting frame, expands by an expander, breaks the side surface of the mounting frame along the incision line of the mounting frame, and at the same time extends into the housing body to form a structure surrounding the inside of the housing body. And, an inflatable curtain having a structure in which a material having flame retardant and heat resistant properties is coated on the outer circumferential surface; It is mounted inside the mounting frame, and when an abnormality occurs in the internal pressure control unit or the temperature inside the housing body exceeds a predetermined critical temperature, gunpowder explodes to release nitrogen gas into the expansion curtain, the first forced separation unit, and the second forced separation unit. an expander that injects into the boo; a spray nozzle which is continuously mounted on the outer surface of the inflatable curtain at a predetermined interval and sprays the fire extinguishing fluid delivered from the fire extinguishing fluid supply unit into the sealed internal space formed by the inflatable curtain; and a fire extinguishing liquid providing unit mounted on an outer surface of the housing body unit and operating when an abnormality occurs in the internal pressure adjusting unit or when the temperature inside the housing body unit exceeds a predetermined critical temperature, and delivers the extinguishing liquid stored therein to the spray nozzle. It may be a composition including;

In one embodiment of the present invention, the first forcible separation unit is formed on one side of the side of the housing main body, the first insertion hole of the structure capable of slidingly inserting the input unit connector; It is mounted on the inner bottom surface of the first insertion hole and is attached or detached by generating attraction or repulsive force by the first permanent magnet and magnetism attached to the end of the input connector, and is attached or detached by a control signal from the control unit. a first electromagnet unit that changes the polarity of a portion exposed to the inner bottom surface; and a first gas injection hole formed on a rim side of an inner bottom surface of the first insertion hole and configured to inject nitrogen gas delivered from the expander into the first insertion hole to push the input connector to the outside. there is.

In this case, the second forced separation unit may include a second insertion hole formed on one side of the side surface of the housing main body and having a structure capable of slidingly inserting the output unit connector; It is mounted on the inner bottom surface of the second insertion hole and is attached or detached by generating attraction or repulsive force by the second permanent magnet and magnetism attached to the end of the connector of the output unit. A second electromagnet unit for changing the polarity of a portion exposed to the inner bottom surface of the; and a second gas injection hole formed on a rim side of the inner bottom surface of the second insertion hole and configured to inject nitrogen gas delivered from the expander into the second insertion hole to push the output connector to the outside. can

As described above, according to the solar multi-string 12-channel connection of the present invention, independent channels can be configured for each MPPT by providing a housing body part of a specific structure, an input connector, an output connector, a surge protector, and a fuse mounting unit. It is possible to prevent internal and external pressure differences, and the internal state can be easily checked with the naked eye, preventing accidents due to various accidents and abnormal currents to protect the photovoltaic power generation system. A 12-channel junction box can be provided.

In addition, according to the solar multi-string 12-channel connection of the present invention, by providing a heat-resistant curtain forming part of a specific structure, a first forced separation unit and a second forced separation unit, an abnormality in the internal pressure control unit or a temperature inside the housing body unit is provided. When the temperature exceeds the preset critical temperature, the fire can be extinguished at an early stage by sealing off the inside of the housing body from the outside immediately and spraying fire extinguishing fluid inside. It is possible to provide a solar multi-string 12-channel junction box that can fundamentally block additional damage to other electronic components by immediately removing the.

1 is a schematic diagram showing the configuration of a solar power generation system according to the prior art.
Figure 2 is a front view showing the inside of a solar multi-string 12-channel junction box according to an embodiment of the present invention.
Figure 3 is a front view showing the cover portion of the housing body portion of the solar multi-string 12-channel junction box according to an embodiment of the present invention.
Figure 4 is a left side view showing the solar multi-string 12-channel connection box shown in Figure 3;
FIG. 5 is a right side view illustrating the solar multi-string 12-channel junction box shown in FIG. 3 .
Figure 6 is a bottom view showing the solar multi-string 12-channel connection box shown in Figure 3;
FIG. 7 is a rear view illustrating the solar multi-string 12-channel junction box shown in FIG. 3 .
8 is an internal circuit diagram of a solar multi-string 12-channel junction box according to an embodiment of the present invention.
9 is a schematic front view showing a heat-resistant curtain forming part of a solar multi-string 12-channel junction box according to another embodiment of the present invention.
FIG. 10 is a schematic front view showing a state in which the heat-resistant curtain forming unit shown in FIG. 9 operates.
FIG. 11 is a cross-sectional view along line A-A' of FIG. 10;
12 is a schematic cross-sectional view showing a first forcible separation unit mounted on an input unit connector of a solar multi-string 12-channel junction box according to another embodiment of the present invention.
FIG. 13 is a schematic cross-sectional view showing a state in which the first forced separation unit shown in FIG. 12 operates.
14 is a schematic cross-sectional view showing a second forcible separation unit mounted on an output connector of a solar multi-string 12-channel junction box according to another embodiment of the present invention.
15 is a schematic cross-sectional view showing a state in which the second forced separation unit shown in FIG. 14 operates.
16 is a block diagram showing the control flow according to the operation of the heat-resistant curtain formation unit, the first forced separation unit, and the second forced separation unit of the solar multi-string 12-channel junction box according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to this, terms or words used in this specification and claims should not be construed as limited to ordinary or dictionary meanings, but should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Throughout this specification, when a member is said to be located “on” another member, this includes not only a case where a member is in contact with another member, but also a case where another member exists between the two members. Throughout this specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated.

Figure 2 is a front view showing the interior of the solar multi-string 12-channel junction box according to an embodiment of the present invention is shown.

Referring to FIG. 2, the solar multi-string 12-channel junction box 100 according to this embodiment includes a housing body 110, an input connector 120, an output connector 130, and a surge protector 140 having a specific structure. ) and the fuse mounting unit 150, it is possible to configure an independent channel for each MPPT, prevent the occurrence of a pressure difference between the inside and the outside, and easily check the internal state with the naked eye, preventing accidents due to various accidents and abnormal currents. It is possible to provide a photovoltaic multi-string 12-channel junction box including a configuration capable of protecting the photovoltaic power generation system by preventing

Hereinafter, each component constituting the solar multi-string 12-channel junction box 100 according to the present embodiment will be described in detail with reference to the drawings.

3 is a front view showing the cover portion of the housing body of the solar multi-string 12-channel junction box according to an embodiment of the present invention, and FIGS. 4 to 7 show a left side view, a right side view, a bottom view and a rear view. each is shown. 8 shows an internal circuit diagram of a solar multi-string 12-channel junction box according to an embodiment of the present invention.

2 to 8, the housing main body 110 of the solar multi-string 12-channel junction box 100 according to this embodiment forms a storage space of a predetermined volume therein, and visually inspects the inside on one side. It is a box structure in which a transparent window that can be observed is installed, and is a structure in which an internal pressure adjusting unit 111 is mounted on one side. The above-mentioned internal pressure adjusting unit 111 discharges some of the air inside the housing body 110 to the outside when the internal pressure of the housing body 110 rises, and the internal pressure of the housing body 110 increases. It is a structure in which external air is sucked into the housing main body 110 when descending. At this time, it is preferable that the internal pressure adjusting unit 111 has a structure that prevents liquid foreign substances and particulate foreign substances from penetrating from the outside.

In this case, when a pressure difference between the inside and outside of the housing main body 110 occurs according to the temperature, the pressure difference can be stably eliminated by the internal pressure adjusting unit 111, and the housing main body 110 generated according to the pressure difference ) can be prevented, and fire, electrical accidents, etc. that can be caused by pressure or thermal deformation of the housing main body 110 can be fundamentally blocked.

The input connector 120 according to the present embodiment has a structure in which a plurality of connectors forming respective channels coupled to the solar module are spaced apart at regular intervals and mounted on one side of the side of the housing body portion 110 .

The output unit connector 130 according to this embodiment has a structure in which a plurality of connectors forming respective channels coupled to the inverter are spaced apart at a predetermined interval and mounted on the other side of the side of the housing body unit 110 .

The surge protector 140 according to the present embodiment is mounted inside the housing main body 110 and has a structure in which the voltage of DC power transmitted from the input connector 120 flows to the ground wire when the voltage exceeds a predetermined range.

The fuse mounting unit 150 according to the present embodiment is mounted inside the housing body unit 110 and is within a predetermined range within a circuit formed by the input connector 120, the output connector 130, and the surge protector 140. It is a structure that forms an open circuit to operate when a current exceeding

In some cases, as shown in FIGS. 2, 6 and 8, the DC switch 160 may be further mounted at the center of the side of the housing main body 110.

Specifically, the DC switch 160 is a structure that blocks or connects each channel in a circuit mounted on the input connector 120 and connected to the output connector 130 for each channel.

For example, as shown in FIGS. 6 and 8 , the input connector 120 is composed of 12 independent channels, each of which is arranged in three rows of four. In addition, the output connector 130 is composed of 12 independent channels corresponding to the input connector 120, and is arranged in three rows of four each. At this time, the DC switch 160 according to the present embodiment may be equipped with three switches 160a, 160b, and 160c that block or connect four channels at once to be independently driven.

In this case, according to this embodiment, the input and output terminals are composed of 12 strings (channels), respectively, so that the input unit is connected to the solar module, and the more channels there are in the input unit, the more colorful and leisurely serial configuration or parallel configuration this becomes possible The output unit is wired with an inverter for solar power generation, and the inverter configures an independent channel for each MPPT (Maximum power point tracking). At this time, in the case of this embodiment, the inverter must be connected 1:1 independently when connecting with the junction box. That is, terminal block #1 of the output unit is connected to terminal block #1 of the input unit of the inverter, and 1:1:1 independent connection is possible for each circuit from the solar module to the junction box inverter. In this case, independent connection for each maximum power point tracking (MPPT) Since channels can be implemented stably, high conversion efficiency can be expected.

9 is a schematic front view showing a heat-resistant curtain formation part of a solar multi-string 12-channel junction box according to another embodiment of the present invention, and FIG. 10 is a front view showing a state in which the heat-resistant curtain formation part shown in FIG. 9 is operated. A schematic diagram is shown, and FIG. 11 shows a cross-sectional view along the line A-A' of FIG. 10.

Referring to these drawings, the solar multi-string 12-channel junction box 100 according to this embodiment may have a configuration including a heat-resistant curtain forming unit 170.

Specifically, the heat-resistant curtain forming unit 170 is continuously mounted along the inner surface of the housing body unit 110, and an abnormality occurs in the internal pressure adjusting unit or the temperature inside the housing body unit 110 is set at a critical temperature. It operates when it exceeds , and is developed along the inner surface of the housing main body 110 to seal the inside of the housing in a closed structure, and is composed of a material having flame retardant properties and heat resistance properties.

As shown in FIGS. 9 to 11, the heat-resistant curtain forming unit 170 includes a specific structure of a mounting frame 171, an inflatable curtain 172, an inflator 173, a spray nozzle 174, and a fire extinguishing liquid supply unit 175. ).

Specifically, the mounting frame 171 of the heat-resistant curtain forming unit 170 is configured to be continuously mounted along the inner surface of the housing main body 110, and is a cylindrical tube mounted at the same height as the inner surface of the housing main body. structure, and is composed of a material having flame-retardant and heat-resistant characteristics with an incision line formed in the inward direction. The expansion curtain 172 of the heat-resistant curtain forming unit 170 is configured to be mounted inside the mounting frame 171 in a folded state, and is inflated by the expander 173 and mounted along the cutting line of the mounting frame 171. A structure in which the side of the frame 171 is crushed and extended into the housing body 110 at the same time to form a structure surrounding the inside of the housing body 110, and a material having flame retardant and heat resistant properties is coated on the outer circumferential surface am. The expander 173 of the heat-resistant curtain forming unit 170 is mounted inside the mounting frame 171, and when an abnormality occurs in the internal pressure adjusting unit or the temperature inside the housing main body 110 exceeds a preset critical temperature. In the case of gunpowder explosion, nitrogen gas is injected into the expansion curtain 172, the first forced separation unit 180 and the second forced separation unit 190. The spray nozzle 174 of the heat-resistant curtain forming unit 170 is configured to be continuously mounted on the outer surface of the inflatable curtain 172 at a predetermined interval, and the fire extinguishing fluid delivered from the fire extinguishing fluid supply unit 175 is transferred to the inflatable curtain 172. It is a structure that sprays into the closed internal space formed by In addition, the fire extinguishing liquid supply unit 175 of the heat-resistant curtain forming unit 170 is mounted on the outer surface of the housing body unit 110, and an abnormality in the internal pressure control unit or the temperature inside the housing body unit 110 is detected. It is a structure that operates when the set critical temperature is exceeded and delivers the fire extinguishing liquid stored therein to the injection nozzle 174.

12 is a cross-sectional schematic diagram showing a first forced separation unit mounted on the input connector of a solar multi-string 12-channel junction box according to another embodiment of the present invention, and FIG. 13 shows a first forced separation shown in FIG. A cross-sectional schematic diagram showing a state in which the unit operates is shown. 14 is a cross-sectional schematic diagram showing a second forcible separation unit mounted on the output connector of a solar multi-string 12-channel junction box according to another embodiment of the present invention, and FIG. 15 is a second forcible separation unit shown in FIG. A cross-sectional schematic diagram showing a state in which the separator operates is shown. In addition, FIG. 16 is a block diagram showing the control flow according to the operation of the heat-resistant curtain formation unit, the first forced separation unit, and the second forced separation unit of the solar multi-string 12-channel junction box according to another embodiment of the present invention. there is.

Referring to these drawings, the solar multi-string 12-channel junction box 100 according to this embodiment may be configured to further include a first forced separation unit 180 and a second forced separation unit 190 having a specific structure. there is.

The first forced separation unit 180 according to the present embodiment is configured to be mounted on one side of the side of the housing body unit 110, is disposed at the mounting portion of the input connector 120, and when the heat-resistant curtain forming unit 170 operates It is a structure that operates together to detach the input connector 120 from the housing main body 110.

Specifically, the first forced separation unit 180 may have a configuration including a first insertion port 181, a first electromagnet unit 182, and a first gas injection port 183 having a specific structure. The first insertion hole 181 is formed on one side of the side of the housing main body 110 and has a structure in which the input connector 120 can be slidably inserted. The first electromagnet unit 182 is mounted on the inner bottom surface of the first insertion hole 181, and generates attractive or repulsive force by the first permanent magnet 121 and magnetism mounted on the end of the input connector 120. It is a structure that is attached or detached, and the polarity of the portion exposed to the inner bottom surface of the first insertion hole 181 can be changed by a control signal from the control unit 176. The first gas injection hole 183 is formed on the edge side of the inner bottom surface of the first insertion hole 181, and injects nitrogen gas delivered from the expander 173 into the first insertion hole 181 to input the connector ( 120) to the outside.

The second forced separation unit 190 according to the present embodiment is configured to be mounted on one side of the side of the housing body unit 110, is disposed at the mounting portion of the output unit connector 130, and operates the heat-resistant curtain forming unit 170 It is a structure in which the output unit connector 130 is detached from the housing body unit 110 by operating together.

Specifically, the second forced separation unit 190 may have a structure including a second insertion port 191, a second electromagnet unit 192, and a second gas injection port 193 having a specific structure. The second insertion hole 191 is formed on one side of the side of the housing main body 110 and has a structure in which the output connector 130 can be slidably inserted. The second electromagnet unit 192 is configured to be mounted on the inner bottom surface of the second insertion port 191, and provides attraction or repulsive force by the second permanent magnet 131 and magnetism mounted on the end of the output connector 130. It is a structure in which it is attached or detached, and the polarity of the portion exposed on the inner bottom surface of the second insertion hole 191 can be changed by a control signal from the control unit 176. The second gas injection hole 193 is formed on the edge side of the inner bottom surface of the second insertion hole 191, and injects nitrogen gas delivered from the expander 173 into the second insertion hole 191 to output the connector. It is a structure that pushes 130 to the outside.

In this case, according to the present embodiment, by providing the heat-resistant curtain forming unit 170, the first forcible separation unit 180, and the second forcible separation unit 190 of a specific structure, an abnormality in the internal pressure control unit or the housing body unit is provided. (110) It operates when the internal temperature exceeds a predetermined critical temperature, and the inside of the housing main body 110 is immediately sealed off from the outside and the fire can be extinguished at an early stage by spraying a fire extinguishing liquid therein, and at the same time, the sun It is possible to provide a photovoltaic multi-string 12-channel junction box that can fundamentally block additional damage to other electronic components by immediately removing all of the binding cables with the optical module and the inverter.

In the above detailed description of the present invention, only specific embodiments thereof have been described. However, it should be understood that the present invention is not limited to the particular forms mentioned in the detailed description, but rather it is understood to include all modifications, equivalents and substitutes within the spirit and scope of the present invention as defined by the appended claims. It should be.

That is, the present invention is not limited to the specific embodiments and descriptions described above, and anyone having ordinary knowledge in the technical field to which the present invention belongs can make various modifications without departing from the gist of the present invention claimed in the claims. is possible, and such variations fall within the protection scope of the present invention.

100: Solar multi-string 12-channel connection box
110: housing body part
111: internal pressure control unit
112: external ground terminal
120: input connector
121: first permanent magnet
122: connection terminal
130: output connector
131: second permanent magnet
132: connection terminal
140: surge protector
150: fuse mounting part
160: DC switchgear
160a: first switch
160b: second switch
160c: third switch
170: heat-resistant curtain forming unit
171: mounting frame
172: inflatable curtain
173: expander
174: injection nozzle
175: digestive fluid supply unit
176: control unit
180: first forced separation unit
181: first insertion port
182: first electromagnet part
183: first gas nozzle
190: second forced separation unit
191: second insertion port
192: second electromagnet part
193: second gas nozzle

Claims (6)

A housing main body portion 110 having a storage space having a predetermined volume therein, having a box structure provided with a transparent window on one side for visually observing the inside, and mounting an internal pressure adjusting unit on one side;
An input connector 120 for mounting a plurality of connectors forming each channel coupled with the photovoltaic module at regular intervals to one side of the housing main body 110;
An output connector 130 for mounting a plurality of connectors forming each channel coupled to the inverter at a predetermined interval and mounted on the other side of the housing main body 110;
A surge protector 140 installed inside the housing main body 110 and configured to flow to a ground line when the voltage of DC power transmitted from the input connector 120 exceeds a predetermined range;
It is mounted inside the housing body part 110 and operates when a current exceeding a predetermined range flows inside the circuit formed by the input connector 120, the output connector 130, and the surge protector 140, and the current A fuse mounting unit 150 forming an open circuit to block the flow;
It is continuously mounted along the inner surface of the housing body portion 110, and operates when an abnormality in the internal pressure regulator occurs or when the temperature inside the housing body portion 110 exceeds a predetermined critical temperature, and the housing body portion 110 A heat-resistant curtain forming unit 170 formed of a material having flame retardant and heat-resistant characteristics, which is developed along the inner surface of the ) and has a structure that seals the inside of the housing in a form of wrapping;
It is mounted on one side of the side of the housing main body 110, is disposed on the mounting portion of the input connector 120, and operates together when the heat-resistant curtain forming unit 170 is operated to connect the input connector 120 to the housing body 110. A first forcible separation unit 180 having a structure to be removed from; and
It is mounted on one side of the side of the housing main body 110, is disposed on the mounting portion of the output connector 130, and operates together when the heat-resistant curtain forming unit 170 operates to connect the output connector 130 to the housing main body ( 110) a second forcible separation unit 190 having a structure to be separated from;
Solar multi-string 12-channel connection box, characterized in that it further comprises.
According to claim 1,
The solar multi-string 12-channel connection box,
In the circuit mounted on the center of the side surface of the housing main body 110, mounted on the input connector 120 and connected to the output connector 130 for each channel, the DC structure of blocking or connecting each channel switch 160;
Solar multi-string 12-channel connection box, characterized in that it further comprises.
According to claim 2,
The input connector 120 is composed of 12 independent channels, and is arranged in three rows of four,
The output connector 130 is composed of 12 independent channels corresponding to the input connector 120, and is arranged in three rows of four,
The DC switch 160 is a solar multi-string 12-channel connection box, characterized in that three switches that block or connect four channels at once are mounted so as to be independently driven.
delete According to claim 1,
The heat-resistant curtain forming unit 170,
A cylindrical tube structure that is continuously mounted along the inner surface of the housing body portion 110 and mounted at the same height as the height of the inner surface of the housing body portion, and has flame-retardant and heat-resistant properties with incisions formed in the inward direction. Mounting frame 171 consisting of;
It is mounted in a folded state inside the mounting frame 171 and is inflated by the expander 173 to break the side surface of the mounting frame 171 along the incision line of the mounting frame 171 and at the same time the housing body portion ( 110) an expansion curtain 172 having a structure extending to the inside to form a structure surrounding the inside of the housing main body 110 and coated with a material having flame retardant and heat resistant characteristics on the outer circumferential surface;
It is mounted inside the mounting frame 171, and when an abnormality occurs in the internal pressure regulator or the temperature inside the housing body 110 exceeds a predetermined critical temperature, gunpowder explodes to release nitrogen gas into the expansion curtain 172, an expander 173 for injecting into the first forced separation unit 180 and the second forced separation unit 190;
Spray nozzles 174 that are continuously mounted on the outer surface of the inflation curtain 172 at regular intervals and inject the fire extinguishing fluid delivered from the fire extinguishing fluid supply unit 175 into the sealed internal space formed by the inflation curtain 172. ); and
It is mounted on the outer surface of the housing body part 110, and operates when an abnormality occurs in the internal pressure control unit or when the temperature inside the housing body part 110 exceeds a predetermined critical temperature, and the fire extinguishing liquid stored therein is sprayed. Digestive fluid supply unit 175 to deliver to (174);
A solar multi-string 12-channel connection box comprising a.
According to claim 5,
The first forced separation unit 180,
a first insertion port 181 formed on one side of the housing main body 110 and having a structure into which the input connector 120 can be slidably inserted;
It is mounted on the inner bottom surface of the first insertion port 181 and is attached or detached by generating attraction or repulsive force by the first permanent magnet 121 and magnetism mounted on the end of the input connector 120, and the control unit a first electromagnet part 182 that changes the polarity of the portion exposed on the inner bottom surface of the first insertion hole 181 by the control signal of (176); and
It is formed on the rim side of the inner bottom surface of the first insertion hole 181, and injects nitrogen gas delivered from the expander 173 into the first insertion hole 181 to push the input connector 120 to the outside. a first gas injection port 183;
including,
The second forced separation unit 190,
a second insertion port 191 formed on one side of the side of the housing main body 110 and capable of slidingly inserting the output connector 130 therein;
It is mounted on the inner bottom surface of the second insertion hole 191 and is attached or detached by generating attraction or repulsive force by the second permanent magnet 131 and magnetism mounted on the end of the output connector 130, a second electromagnet unit 192 that changes the polarity of a portion exposed on the inner bottom surface of the second insertion hole 191 by a control signal from the control unit 176; and
A structure formed on the edge side of the inner bottom surface of the second insertion hole 191 and injecting nitrogen gas transmitted from the expander 173 into the second insertion hole 191 to push the output connector 130 to the outside. of the second gas injection port 193;
A solar multi-string 12-channel connection box comprising a.

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