KR102449104B1 - Solar junction box with fire extinguisher interlocking display function - Google Patents

Abstract

The present invention relates to a solar junction box with a fire extinguishing device interlocking display function. The condition inside the solar junction box can be visually checked from the outside to prevent secondary accidents, and an operation of the fire extinguishing device due to a fire can be visually checked from the outside. The solar junction box includes a fire extinguishing device interlock status indicator that is mounted at a predetermined position on the body of the solar junction box and visually displays a breaker operating state, fire extinguishing device operating state, and normal or abnormal state inside the solar junction box from the outside of the solar junction box. The fire extinguishing device interlock status indicator displays each status through the color of an LED with excellent visibility. In the event of a fire or electrical accident, the state of the solar junction box can be recognized from the outside without checking the internal state of the junction box. Accordingly, secondary accidents can be prevented.

Description

Solar junction box with fire extinguisher interlocking display function

The present invention relates to a solar junction box equipped with a fire extinguishing device interlocking display function, and in particular, it prevents secondary accidents by making it possible to visually check the state of the inside of the solar junction box from the outside, and the operation of the fire extinguishing device due to fire It relates to a solar junction box equipped with a fire extinguishing device interlocking display function so that the presence or absence can be visually confirmed from the outside.

Pollution of the global environment and depletion of fossil energy sources are already too natural issues to be a special issue, and have become important factors threatening mankind. Accordingly, efforts are being made to reduce environmental pollution and find environmentally friendly new and renewable energy sources that transcend national and racial boundaries.

Renewable energy is an energy source that is expected to become the center of a paradigm shift in new energy, and in particular, among new and renewable energy, solar power generation system is the closest power generation method to practical use.

The photovoltaic power generation system is to convert light energy incident from the sun into electric energy to produce electric power. It consists of a photovoltaic junction box (also called a cubicle or junction panel) that collects DC power generated from the , and a power converter (inverter) for converting DC power into AC power.

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

Inside the solar junction box, various devices, for example, fire extinguishers such as circuit breakers and aerosol fire extinguishers, are built-in.

When a fire or electrical accident occurs, it is necessary to check the condition of the inside of the cubicle. In this case, there is a risk of a secondary accident. In order to prevent such a secondary accident, the conventionally proposed technology uses Internet of Things (IoT) equipment that can check the internal state of the solar junction box from the outside of the solar junction box in a state in which the solar junction box is being used.

However, the solar junction box status check equipment using these IoT equipment is vulnerable to heat in case of fire, and it is affected by surges and abnormal frequencies, so malfunctions and abnormal detection are frequent, maintenance is difficult, and it is expensive, so it is not practical.

Therefore, there is a need for a technology capable of preventing secondary accidents by allowing the state inside the solar junction box to be visually checked from the outside of the solar junction box.

Republic of Korea Patent Registration 10-1550039 (Registered on August 28, 2015) (Solar junction box equipped with automatic fire extinguishing function and reverse current device equipped with power source blocking means) Republic of Korea Patent Registration 10-1554145 (Registered on Sep. 14, 2015) (Interconnection panel for photovoltaic device) Republic of Korea Patent Registration 10-2062217 (Registered on Dec. 27, 2019) (Fire detection method for solar power system connection panel) Republic of Korea Patent 10-2062218 (Registered on Dec. 27, 2019) (Method of operating automatic fire extinguishing system through fire detection method of solar power system connection panel) Republic of Korea Patent 10-2165783 (Registered on Oct. 7, 2020) (Solar junction box equipped with a complex fire detection protection system) Republic of Korea Patent Registration 10-2307959 (Registered on Sept. 27, 2021) (Solar power junction panel with disaster prevention monitoring function and photovoltaic power generation system including the same)

Therefore, the present invention is vulnerable to heat when checking the state of the solar junction box using the Internet of Things equipment and the disadvantage of not being able to check the state inside the solar junction box from the outside of the solar junction box in the conventional solar junction box as described above. It is proposed to improve the impractical disadvantages of frequent malfunction and abnormal detection due to frequency, and difficult and expensive maintenance. An object of the present invention is to provide a solar junction box equipped with a fire extinguishing device interlocking display function that prevents the fire from occurring, and enables visual confirmation of the operation of the fire extinguishing device due to the occurrence of a fire.

Another object of the present invention is to add a waterproof and dustproof function to the fire extinguishing device interlocking indicator mounted on the outer surface of the solar junction box so that there are no restrictions on use even if the solar junction box is used outdoors. It provides access.

Another object of the present invention is to realize the operation state of the breaker of the solar junction box, the normal or abnormal state of the internal state, and the operation state of the fire extinguishing device due to the occurrence of a fire with a visual device using an LED with excellent visibility to intuitively visualize the state of the solar junction box. It is to provide a solar junction box equipped with a fire extinguishing device interlocking display function so that it can be recognized.

In order to achieve the object as described above, "solar junction box equipped with a display function interlocking fire extinguishing system" according to the present invention,

It is mounted at a predetermined position on the body of the solar junction box, and includes a fire extinguishing device interlocking status indicator that visually expresses the breaker operation state, the fire extinguishing system operation state, and the normal or abnormal state inside the solar junction box from the outside of the solar junction box, ,

The fire extinguishing device interlocking state indicator is characterized in that it displays each state through the color of the LED having excellent visibility.

The fire extinguishing system interlocking status indicator in the above,

a body built into the installation space of the solar junction box body;

a waterproof and dustproof member covering all sides of the body to perform a waterproof and dustproof function;

and a mounting part for fixing the body to the solar junction box by pressing the waterproof and dustproof member with a stud bolt after embedding the body in the installation space.

The fire extinguishing system interlocking status indicator in the above,

a state display control unit for generating a state display control signal according to the operation state of the circuit breaker inside the solar junction box and whether the fire extinguishing device is in operation;

It characterized in that it comprises a state display unit for visually displaying the normal or abnormal state inside the solar junction box, the operation state of the circuit breaker and the operation status of the fire extinguishing device in conjunction with the state display control signal generated from the state display control unit.

The fire extinguishing system interlocking status indicator in the above,

It characterized in that it further comprises a main power trip unit for automatically tripping the main power device when the fire extinguishing device is operated in conjunction with the status display control signal of the status display control unit.

In the above state display control unit,

a fire extinguishing device interlocking switch interlocking with a pressure detecting device attached to the fire extinguishing device to perform a switching operation with a pressure detecting signal transmitted through the pressure detecting device when the fire extinguishing device is operated;

a first relay for generating a fire occurrence and a fire extinguishing device operation state control signal when the fire extinguishing device interlocking switch is turned on;

a circuit breaker interlocking switch for switching operation in conjunction with a trip operation of the circuit breaker inside the solar junction box;

a second relay for generating a breaker state control signal for breaker abnormality and inspection required when the breaker interlocking switch is turned on; and

It is characterized in that it includes a timer that generates a main power cut-off trip signal through a one-shot mode when the fire extinguishing device interlocking switch is turned on.

In the above, the status display unit,

a second relay switch for supplying power for display of non-operation of fire extinguishing device, breaker closing or breaker trip state, breaker normal operating state, breaker abnormality, and inspection request status in conjunction with the second relay;

a first relay switch for supplying power for displaying an operation state of a fire extinguishing device due to a fire in connection with the first relay;

a first LED for visually displaying the non-operational state of the fire extinguishing device and the normal operating state of the circuit breaker in connection with the second relay switch;

a second LED for visually displaying a fire extinguishing device non-operation state, a breaker trip state, and a circuit breaker abnormality and inspection request state in connection with the second relay switch;

In connection with the first relay switch, it characterized in that it includes a third LED that visually displays the operation state of the fire extinguishing system and the trip state of the circuit breaker due to the occurrence of a fire.

In the above, the first to third LEDs are characterized in that each state is visually displayed in different colors.

In the above, the main power trip unit,

a trip switch for supplying trip power according to a main power trip signal generated by a timer of the status display control unit;

and a trip device for automatically tripping the main power device to cut off the power when the trip switch is turned on.

According to the present invention, by making it possible to visually check the internal state of the solar junction box from the outside, it is possible to recognize the internal state of the solar junction box without opening the door of the solar junction box. There is an effect to prevent secondary accidents caused by opening and closing the door of the box.

In addition, according to the present invention, there is an advantage in that it is possible to recognize the presence or absence of the operation of the fire extinguishing device due to the occurrence of a fire inside the solar junction box through the status display function from the outside of the solar junction box.

In addition, according to the present invention, it is possible to provide a solar junction box without restrictions in use even if the solar junction box is used outdoors by adding a waterproof and dustproof function to the fire extinguishing device interlocking indicator mounted on the outer surface of the solar junction box.

In addition, according to the present invention, the state of the solar junction box is intuitively realized by realizing the operation state of the breaker of the solar junction box, the normal or abnormal state of the internal state, and the operation state of the fire extinguishing device due to the occurrence of a fire with a visual device using an LED with excellent visibility. It has the effect of encouraging awareness.

In addition, according to the present invention, the state of the solar junction box can be recognized from the outside by simply adding a display device without using expensive IoT equipment, thereby reducing the implementation cost of the solar junction box state recognition device and maintaining It has the effect of improving the convenience of maintenance.

1 is a schematic configuration diagram of a photovoltaic power generation system including a photovoltaic junction box equipped with a fire extinguishing device interlocking display function according to the present invention;
Figure 2a is an exemplary view in which the fire extinguishing device interlocking status indicator is mounted on the solar junction box, Figure 2b is an exemplary view of the status display of the fire extinguishing device interlocking status indicator,
3 is a circuit diagram of a fire extinguishing device interlocking status indicator according to the present invention.

Hereinafter, a solar junction box equipped with a fire extinguishing device interlocking display function according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The terms or words used in the present invention described below should not be construed as being limited to conventional or dictionary meanings, and the inventor may appropriately define the concept of terms in order to best describe his invention. It should be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention, so various equivalents and It should be understood that there may be variations.

1 is a schematic configuration diagram of a photovoltaic power generation system including a photovoltaic junction box provided with a fire extinguishing device interlocking display function according to a preferred embodiment of the present invention, a plurality of photovoltaic panels 10 connected by a string, the sun Solar junction box 100 for collecting power generated by connecting to each string of photovoltaic panel 10, inverter 200 for converting generated power collected from photovoltaic junction box 100 into commercial AC power, solar power It may include a control server 300 for monitoring a power generation state in conjunction with the junction box 100 and the inverter 200 .

Here, the inverter 200 may be configured outside the solar junction box 100 as shown, but may also be configured inside the solar junction box 100 .

The solar junction box 100 is mounted at a predetermined position of the solar junction box body 101, and the breaker operation state, the fire extinguishing device operation state, and the normal or abnormal state inside the solar junction box are visually displayed from the outside of the solar junction box. It may include a fire extinguishing device interlocking state indicator 110 that is expressed as. The fire extinguishing device interlocking state indicator 110 may display each state through various colors of an LED having excellent visibility. Here, the normal state inside the solar junction box means a live wire state.

The fire extinguishing device interlocking state indicator 110 has a body 111 built in the installation space 102 of the solar junction box body 101, as shown in FIGS. 2A and 2B, and the body 111 ) is coupled to a waterproof and dustproof member 112 that wraps the outer surface of the body 111 to perform a waterproof and dustproof function. Here, the waterproof and dustproof member 112 may be manufactured and used as a separate product from the body 111 , or may be integrally mounted to the body 111 .

After embedding the fire extinguishing device interlocking state indicator 110 in the installation space 102 formed in the body 101 of the solar junction box, the waterproof and dustproof member 112 is coupled with the mounting part 114, and the waterproof and dustproof member ( 112) by pressing the stud bolts (Stud bilt) 113 to fix the body 111 to the solar junction box 100 .

By mounting the fire extinguishing device interlocking state indicator 110 on the body 101 of the solar junction box 100 using the waterproof and dustproof member 112, the solar junction box 100 is installed inside or outside the building. Safety can be secured by preventing water and dust from entering the inside of the photovoltaic junction box regardless of location.

As shown in FIG. 3 , the fire extinguishing device interlocking state indicator 110 is a state display control unit that generates a state display control signal according to the operation state of the circuit breaker inside the solar junction box 100 and whether the fire extinguishing device is in operation. (120), a state display unit ( 130), may include a main power trip unit 140 that automatically trips the main power device when the fire extinguishing device is operated in conjunction with the status display control signal of the status display control unit 120 .

The status display control unit 120 interlocks with the pressure detection device attached to the fire extinguishing device, and performs a switching operation with the pressure detection signal transmitted through the pressure detection device when the fire extinguishing device is operated (SW1); When the fire extinguishing device interlocking switch SW1 is turned on, the first relay 121 that generates a fire and fire extinguishing device operation state control signal operates in conjunction with the tripping operation of the circuit breaker inside the solar junction box A breaker interlocking switch (SW2) that does (SW1) may include a timer 123 for generating a main power cut-off trip signal through the one-shot mode when operating in the on state.

Here, the one-shot mode of the timer 123 refers to a function of maintaining a predetermined operating state (eg, main power trip state) for a minimum one-shot time (eg, 1 s).

The status display unit 130 interlocks with the second relay 122 to supply power for the display of the fire extinguishing device non-operation, breaker input or breaker trip status, breaker normal operation status, breaker abnormality, and inspection request status. Relay switch 131, the first relay switch 132 and the second relay switch 131 for supplying power for display of the operation state of the fire extinguishing system due to fire in conjunction with the first relay 121 The first LED 133 that visually displays the non-operational state of the fire extinguishing system and the normal operating state of the breaker, and the non-operational state of the fire extinguishing system, the breaker trip state, and the breaker abnormality and inspection request state in connection with the second relay switch 131 A second LED 134 that visually displays the have.

The first to third LEDs 133 to 135 may visually display respective states with different colors.

The main power trip unit 140 operates a trip switch 141 for supplying trip power according to a main power trip signal generated by the timer 123 of the status display control unit 120 and an on operation of the trip switch 141 . It may include a trip device 142 that automatically trips the main power supply unit to cut off the power. The trip device 142 may use a normal voltage trip device (shunt trip; SHT). Here, the trip switch 141 may receive a main power trip signal in conjunction with the first and second relays other than the timer 123 to supply trip power.

The operation of the fire extinguishing device interlocking state indicator 110 according to the present invention configured as described above will be described in detail as follows.

The fire extinguishing system interlocking state indicator 100 according to the present invention is largely a normal operating state in which the fire extinguishing system does not operate/ the circuit breaker is in (ON) state, the fire extinguisher does not operate/ the circuit breaker trip, the breaker abnormality in the open state, and the inspection required state, the fire extinguishing system It can operate in three states: operation/breaker trip, and open state fire.

The present invention describes the above three operating states as an example, but is not limited thereto, and additionally, if a gas detection sensor, an earthquake detection sensor, etc. are added, additional functions of gas detection and earthquake detection state are also possible, , accordingly, it will be apparent to those of ordinary skill in the art that the gas detection state and the earthquake detection state can also be expressed through the fire extinguishing device interlocking state indicator 100 .

First, in the normal operating state where the fire extinguishing device does not operate and the circuit breaker is in the closed state (ON), the fire extinguishing device interlocking switch SW1 of the status display control unit 120 is in an off state, and the breaker interlocking switch SW2 is keep it on. That is, the fire extinguishing device interlocking switch SW1 maintains a state in which the contact a1 and the contact b1 are separated, and the breaker interlocking switch SW2 maintains the contact a2 and the contact b2 in a connected state. At this time, the first relay 121 is in an off state, and the second relay 122 is in an on state.

Accordingly, the first relay switch 132 of the status display unit 130 maintains a state in which the contact a11 and the contact b11 are connected and the contact a12 and the contact b12 are separated, and the second relay switch 131 has the contact a21 and the contact b21. It is connected and the contact a22 and the contact b22 are separated.

Therefore, the LED driving power flows to the contact a11 and the contact b11 of the first relay switch 132 and then flows to the contact a21 and the contact b21 of the second relay switch 131 so that only the first LED 133 is turned on.

Here, the lighting color of the first LED 133 is set to white (W), and the white LED is turned on when the fire extinguishing device is not in operation/ the circuit breaker is turned on (ON) to visually indicate that the solar junction box is in a normal state. Here, when the white LED is turned on, as shown in FIG. 2b, by lighting the entire front of the fire extinguishing device interlocking state indicator 110 in white, the state of the solar junction box can be recognized from a distance due to the excellent visibility of the LED.

Next, the fire extinguishing device interlocking switch SW1 of the status display control unit 120 maintains an OFF state when the fire extinguishing device does not operate and the circuit breaker is in a tripped (TRIP) and open (OFF) state. and the breaker interlock switch SW2 is switched to an off state in conjunction with the trip operation of the breaker. That is, the fire extinguishing device interlocking switch (SW1) maintains a state in which the contact a1 and the contact b1 are separated, and the breaker interlocking switch (SW2) maintains the state in which the contact a2 and the contact b2 are separated. At this time, the first relay 121 maintains the off state, and the second relay 122 is also switched to the off state.

Accordingly, the first relay switch 132 of the status display unit 130 maintains a state in which the contact a11 and the contact b11 are connected and the contact a12 and the contact b12 are separated, and the second relay switch 131 has the contact a21 and the contact b21. and the contact a22 and contact b22 are connected.

Therefore, the LED driving power flows to the contact a11 and the contact b11 of the first relay switch 132 and then flows to the contact a22 and the contact b22 of the second relay switch 131 so that only the second LED 134 is turned on.

Here, the lighting color of the second LED 134 is set to blue (B), and the blue LED is turned on in the non-operational/breaker trip of the fire extinguishing system and the open (OFF) state. visually indicate that Here, when the blue LED is turned on, as shown in FIG. 2b, by lighting the entire front of the fire extinguishing device interlocking state indicator 110 in blue, the state of the breaker of the solar junction box can be recognized from a distance due to the excellent visibility of the LED. .

In addition, when the fire extinguishing device operates due to the occurrence of a fire, the fire extinguishing device interlocking switch SW1 operates with the pressure detection signal transmitted through the pressure detection device when the fire extinguishing device is operated in conjunction with the pressure detection device attached to the fire extinguishing device. Switching operation is performed in the on state.

As described above, when the fire extinguishing device interlocking switch SW1 operates in the on state due to the fire in the solar junction box 100, the fire extinguishing device operation is displayed to notify the fire, and for automatic trip of the main power supply, the status display control unit ( 120) of the fire extinguishing device interlocking switch (SW1) is switched to the on state, the breaker interlocking switch (SW2) is switched to the off state. That is, the fire extinguishing device interlocking switch SW1 switches to the state in which the contact a1 and the contact b1 are connected, and the breaker interlocking switch SW2 switches to the state in which the contact a2 and the contact b2 are disconnected. At this time, the first relay 121 is switched to the on state, and the second relay 122 is switched to the off state.

Accordingly, the first relay switch 132 of the status display unit 130 switches to a state in which the contact a11 and the contact b11 are disconnected and the contact a12 and the contact b12 are connected, and the second relay switch 131 is the second relay 121 . By interlocking with , contact a21 and contact b21 are disconnected, and contact a22 and contact b22 remain connected.

Therefore, the LED driving power flows to the contact a12 and the contact b12 of the first relay switch 132 and only the third LED 135 is turned on.

Here, the lighting color of the third LED 135 is set to red (R), and the red LED is turned on in the fire extinguishing device operation/breaker trip, open (OFF) state to indicate that the fire extinguishing device is operating due to the occurrence of a fire in the solar junction box. display visually. Here, when the red LED is turned on, as shown in FIG. 2b, by lighting the entire front of the fire extinguishing device interlocking status indicator 110 in red, it can be recognized that the fire of the solar junction box has occurred from a distance due to the excellent visibility of the LED. have.

On the other hand, when the fire extinguishing device operates due to the occurrence of a fire in the solar junction box as described above, as the fire extinguishing device interlocking switch SW1 is turned on, driving power is also supplied to the timer 123 .

The timer 123 generates a main power cut-off trip signal through the one-shot mode when the fire extinguishing device interlocking switch SW1 operates in an on state. Here, the one-shot mode means maintaining a constant operating state (eg, a main power trip state) for a minimum one-shot time (eg, 1 s) as well known. The reason for applying the one-shot mode is to protect the trip device through the one-shot mode as the fire extinguishing device is continuously maintained in an ON state and power is continuously applied to the trip device.

When the main power trip signal is generated by the one-shot function of the timer 123 , the trip switch 141 of the main power trip unit 140 is switched to the ON state in conjunction with it. That is, the contact a3 and the contact b3 are switched to a connected state.

Accordingly, driving power is supplied to the trip device 142 through the trip switch 141 that is turned on. That is, an interrupt is applied to the trip device 142 . The trip device 142 operates with the supplied power to automatically trip the main power device to cut off the power. Here, the trip device 142 may use a normal voltage trip device (shunt trip; SHT).

The breaker interlock switch SW2 is automatically switched to an off state by the trip operation of the trip device 142 .

According to the present invention described above, the internal state of the solar junction box can be recognized without opening the door of the solar junction box by making it possible to visually check the internal state of the solar junction box through an LED with good visibility from the outside. In the event of an abnormality in the solar junction box, secondary accidents caused by opening and closing the door of the solar junction box can be prevented.

In addition, according to the present invention, it is possible to recognize whether the fire extinguishing device is operating due to the occurrence of a fire inside the solar junction box through the status display function from the outside of the solar junction box.

In addition, according to the present invention, it is possible to provide a solar junction box without restrictions on use even if the solar junction box is used outdoors by adding a waterproof and dustproof function to the fire extinguishing device interlocking indicator mounted on the outer surface of the solar junction box.

Although the invention made by the present inventor has been described in detail according to the above embodiments, the present invention is not limited to the above embodiments and it is common knowledge in the art that various changes can be made without departing from the gist of the present invention. self-evident to those who have

10: solar panel
100: solar junction box
101: body
102: installation space
110: fire extinguishing system interlocking status indicator
120: status display control unit
130: status display unit
140: main power trip unit

Claims (8)

It is mounted at a predetermined position on the body of the solar junction box, and includes a fire extinguishing device interlocking status indicator that visually displays the breaker operation status, fire extinguishing device operation status, live wire or abnormal state inside the solar power junction box from the outside of the solar junction box, ,
The fire extinguishing device interlocking status indicator displays each status through the color of the LED with excellent visibility,
The fire extinguishing device interlocking status indicator,
a body built into the installation space of the solar junction box body; a waterproof and dustproof member covering all sides of the body to perform a waterproof and dustproof function; and a mounting part for fixing the body to the solar junction box by pressing the waterproof and dustproof member with a stud bolt after embedding the body in the installation space; and a state display control unit for generating a state display control signal according to the operation state of the circuit breaker inside the solar junction box and whether the fire extinguishing device is in operation,
The status display control unit,
a fire extinguishing device interlocking switch interlocking with a pressure detecting device attached to the fire extinguishing device to perform a switching operation with a pressure detecting signal transmitted through the pressure detecting device when the fire extinguishing device is operated; a first relay for generating a fire occurrence and a fire extinguishing device operation state control signal when the fire extinguishing device interlocking switch is turned on; a circuit breaker interlocking switch for switching operation in conjunction with a trip operation of the circuit breaker inside the solar junction box; a second relay for generating a breaker state control signal for breaker abnormality and inspection required when the breaker interlocking switch is turned on; and a timer that generates a main power cut-off trip signal through a one-shot mode when the fire extinguishing device interlocking switch is turned on,
In the normal operating state where the fire extinguishing system does not operate and the circuit breaker is in the closed state (ON), the fire extinguishing system interlocking switch SW1 maintains the off state and the breaker interlocking switch SW2 maintains the on state. When the fire extinguisher is not working/ the circuit breaker is turned on (ON), the first LED is turned on in white to visually indicate that the solar junction box is in a normal state.
When the fire extinguishing device does not operate, and the circuit breaker is in trip (TRIP) and open (OFF) state, and in a state requiring inspection, the fire extinguishing device interlocking switch (SW1) maintains the off state, and the breaker interlocking switch (SW2) is switched to the off state in conjunction with the trip operation of the breaker, and when the fire extinguishing device does not work / circuit breaker trip, and in the open state, the second LED turns blue to visually indicate that the breaker of the solar junction box is in an abnormal state. show it,
When the fire extinguishing device operates due to a fire, the fire extinguishing device interlocking switch (SW1) is turned on ( on) state to operate the fire extinguisher / circuit breaker trip, and in the open (OFF) state, the third LED turns on the red LED to visually indicate that the fire extinguisher is operating due to the occurrence of a fire in the solar junction box. Solar junction box equipped with fire extinguishing device interlocking display function.
delete The method according to claim 1, The fire extinguishing device interlocking status indicator,
Fire extinguishing device interlocking display function, characterized in that it includes a state display unit for visually displaying the operation state of the circuit breaker inside the solar junction box and the operation status of the fire extinguishing device in conjunction with the state display control signal generated from the state display control unit Equipped with solar junction box.
The method according to claim 3, The fire extinguishing device interlocking status indicator,
Solar junction box with fire extinguishing device interlocking display function, characterized in that it further comprises a main power trip unit that automatically trips the main power device when the fire extinguishing device operates in conjunction with the status display control signal of the status display control unit.
delete The method according to claim 3, The status display unit,
a second relay switch for supplying power for display of non-operation of fire extinguishing device, breaker closing or breaker trip state, breaker normal operating state, breaker abnormality, and inspection request status in conjunction with the second relay;
a first relay switch for supplying power for displaying an operation state of a fire extinguishing device due to a fire in connection with the first relay;
a first LED for visually displaying the non-operational state of the fire extinguishing device and the normal operating state of the circuit breaker in connection with the second relay switch;
a second LED for visually displaying a fire extinguishing device non-operation state, a breaker trip state, and a circuit breaker abnormality and inspection request state in connection with the second relay switch;
A solar junction box with a fire extinguishing device interlocking display function, characterized in that it includes a third LED that visually displays the fire extinguishing device operation state and the circuit breaker trip state due to the occurrence of a fire in connection with the first relay switch.
The solar junction box of claim 6, wherein the first to third LEDs visually display respective states in different colors.
The method according to claim 4, The main power trip unit,
a trip switch for supplying trip power according to a main power trip signal generated from a timer or a fire extinguishing device interlocking switch or a circuit breaker interlocking switch of the status display control unit;
A solar junction box with a fire extinguishing device interlocking display function, characterized in that it includes a trip device that automatically trips the main power device to cut off the power when the trip switch is turned on.

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