KR102504953B1 - A distributing board for solar power generation - Google Patents

Abstract

The present invention relates to a functional distributing board for a solar photovoltaic generator, which is linked to solar photovoltaic generators (200) that generates electricity by using solar power, to supply power to a load or distribute power to a commercial system. The functional distributing board comprises: a distributing board body (10) in which various accessories (E) for power distribution are built; a temperature sensing unit (20) which senses the temperature inside the distributing board body (10) and generates a corresponding temperature signal (S1); a smoke sensing unit (30) which senses smoke generated inside the distributing board body (10) and generates a corresponding smoke signal (S2); a light sensing unit (40) which senses the amount of light generated inside the distributing board body (10) and generates a corresponding light signal (S3); an event signal generation unit (50) which generates an event signal (FS) when at least two of the temperature signal (S1), the smoke signal (S2), and the light signal (S3) are generated; a linked fire extinguishing unit (60) which is installed inside the distributing board body (10) and is linked when the event signal (FS) is generated to automatically discharge a fire extinguishing agent for extinguishing a fire; and a magnetic attachment unit (70) which is installed at the top of the linked fire extinguishing unit (60) to magnetically attach the linked fire extinguishing unit (60) to the inner peripheral surfaces of the distributing board body (10). Therefore, the functional distributing board can early extinguish a fire, thereby preventing the possibility that the fire spreads around the distributing board.

Description

Functional distribution board for solar power generation device {A distributing board for solar power generation}

The present invention relates to a functional switchboard for a photovoltaic power generation device, and more particularly, to a functional switchboard for a photovoltaic device that can detect an event situation such as ignition in an early stage and prevent a fire from spreading in an accessory. It is about.

Photovoltaic power generation devices use solar cells to directly convert sunlight into electrical energy, and are in the limelight as a new energy source to solve the problem of air pollution that accompanies the acceleration of fossil fuel depletion and combustion of fossil fuels. there is. The power generated by the photovoltaic power generation device is supplied to loads in homes or factories and used, and the surplus power that is not used is sold (sold) to a commercial system linked to KEPCO. These photovoltaic power generation devices are linked to loads such as factories or homes and commercial systems such as KEPCO, and are for supplying power to loads or distributing to commercial systems, and include a switchboard in which various accessories (E) for distribution are embedded. operate

However, since the switchboard is mainly installed and operated outdoors because it is operated together with the photovoltaic power generation device, corrosion of various components is progressing due to dew condensation or inflow of external moisture due to the temperature difference between morning and evening. Various parts constituting the switchboard are deteriorated and damaged due to electrical, mechanical, environmental, manufacturing problems, etc., and accidents such as sparks, oil leakage, and insulation breakdown may occur. It may cause accidents such as power outages or fires caused by shutdowns.

A fire occurring in such a switchboard progresses as a cause of ignition occurs in a specific component, and then spreads to surrounding components while flames following the ignition continue. After that, the fire spreads around the switchboard, leading to a large-scale fire, and causes a shutdown in the switchboard, causing a blackout in the power system, causing secondary damage.

Therefore, there is a need for a technology for early sensing the ignition timing before it spreads to a full-scale fire in the switchboard and for actively extinguishing the ignition.

The present invention was created to solve the above problems, and when an event situation such as ignition occurs in a specific component inside a switchboard, early sensing and extinguishing, solar power generation capable of preventing a full-scale fire from spreading It is an object of the present invention to provide a functional switchboard for devices.

Another object of the present invention is to provide a functional switchboard for a solar power generator capable of sharing an event situation with a remote manager when it occurs.

In order to achieve the above object, the functional switchboard for a solar power generation device according to the present invention is for supplying power to a load or distributing power to a commercial system in connection with the photovoltaic power generation device 200 generating solar power, A switchboard body 10 in which various accessories (E) for power distribution are embedded in; a temperature sensing unit 20 that senses the temperature inside the switchboard body 10 and generates a corresponding temperature signal S1; a smoke sensing unit 30 that senses smoke generated inside the switchboard body 10 and generates a corresponding smoke signal S2; an optical sensing unit 40 that senses the amount of light generated inside the switchboard body 10 and generates a corresponding optical signal S3; an event signal generating unit (50) generating an event signal (FS) when at least two or more of the temperature signal (S1), the smoke signal (S2), and the light signal (S3) are generated; an interlocking fire extinguishing unit 60 installed inside the switchboard body 10 and interlocking when an event signal FS is generated to automatically discharge an extinguishing agent for extinguishing; and a magnetic attachment part 70 installed at the upper end of the interlocking fire extinguishing part 60 to magnetically attach the interlocking fire extinguishing part 60 to the inner circumferential surface of the switchboard body 10.

In the present invention, the temperature sensing unit 20 is installed on one side of the inner circumferential surface of the switchboard body 10, and the first temperature sensor 21 senses the ambient temperature and generates a corresponding first temperature signal S1a. ) and a second temperature sensor 22 installed on the inner circumferential surface of the switchboard body 10 opposite the first temperature sensor 21 to sense the ambient temperature and generate a corresponding second temperature signal S1b. do; The smoke sensing unit 30 is installed on one side of the inner circumferential surface of the switchboard body 10, and includes a first smoke sensor 31 that senses surrounding smoke and generates a corresponding first smoke signal S2a; 1. It is installed on the inner circumferential surface of the switchboard body 10 opposite the smoke sensor 31, and includes a second smoke sensor 32 that senses ambient smoke and generates a corresponding second smoke signal S2b; The light sensing unit 40 is installed on one side of the inner circumferential surface of the switchboard body 10, and includes a first optical sensor 41 that senses ambient light and generates a corresponding first optical signal S3a; It is installed on the inner circumferential surface of the switchboard body 10 opposite to 1 optical sensor 41, and includes a second optical sensor 42 that senses ambient light and generates a corresponding second optical signal S3b.

In the present invention, the interlocking fire extinguishing unit 60 is installed on the inner ceiling of the switchboard body 10, and the housing 61 opens downward and the housing 61 seals and shields the downwardly opened portion. A rubber seat cap 62 installed to surround the circumference, a powder fire extinguishing agent 63 filled between the housing 61 and the rubber seat cap 62, and symmetrically installed on the surface of the rubber seat cap 62 It includes a wire heater 64 that generates heat when power is applied.

In the present invention, the interlocking fire extinguishing unit 60 is mounted on a pair of mounting wings 65 formed on the inner upper surface of the housing 61 and the mounting wings 65, and when power is applied to the housing A gas generator 66 generating expansion gas between the 61 and the rubber seat cap 62, and a band sheet overlapping across the rubber seat cap 62 after being connected to the edge of the rubber seat cap 62. (67), the first terminal 68 installed on the rubber seat cap 62 between the rubber seat cap 62 and the band seat 67, the rubber seat cap 62 and the band seat 67 ), it is installed on the band sheet 67 between the band sheets 67 and connects to the first terminal 68 when the band sheet 67 is inflated by interlocking with the inflating rubber seat cap 62 to form a wire heater 64 It includes a second terminal 69 for supplying power to.

In the present invention, the interlocking fire extinguishing unit 60 further includes an event signal transmission unit 80 for transmitting the event signal FS to a manager server (not shown) when the event signal FS is generated. do.

According to the present invention, at least two of the signals generated by the temperature sensing unit 20 for measuring the internal temperature of the switchboard body 10, the smoke sensing unit 30 for sensing smoke, and the light sensing unit 40 for sensing light By generating an event signal (FS) for activating the interlocking fire extinguishing unit 60 when one or more signals are generated, it is possible to prevent the interlocking fire extinguishing unit 60 from malfunctioning.

In addition, the temperature sensing unit 20 is composed of first and second temperature sensors 21 and 22 installed to face each other on the inner circumferential surface of the switchboard body 10, and the smoke sensing unit 30 faces the inner circumferential surface of the switchboard body 10. It is composed of first and second smoke sensors 31 and 32 installed to see, and the optical sensing unit 40 is installed to face the inner circumferential surface of the switchboard body 10 with the first and second optical sensors 41 and 42 installed. Since it is configured, when ignition starts in a specific component E, it can be sensed immediately before the fire spreads to the entire switchboard, and accordingly, the fire can be extinguished early, preventing the possibility of the fire spreading around the switchboard.

In addition, since the interlocking fire extinguishing unit 60 does not use a high-pressure tank, it is possible to eliminate the possibility of explosion even if the internal temperature rises to 60 to 70 ° C. or higher, thereby enabling safe operation.

And when an event situation occurs, the event signal transmission unit 80 transmits the event signal FS to a manager server (not shown), and enables a remote manager to mobilize for active response.

1 is a view illustrating the overall configuration of a solar power generation device to which a functional switchboard of the present invention is applied;
2 is a view for explaining the internal configuration of the functional switchboard for a photovoltaic power generation device of FIG. 1;
3 is a block diagram for explaining the configuration of the functional switchboard of FIG. 2;
4 is a block diagram for explaining the configuration of the temperature sensing unit of FIGS. 2 and 3;
5 is a block diagram for explaining the configuration of the smoke sensing unit of FIGS. 2 and 3;
6 is a block diagram for explaining the configuration of the light sensing unit of FIGS. 2 and 3;
7 is a perspective view of the interlocking fire extinguishing unit of FIGS. 2 and 3;
8 is a perspective view of the interlocking fire extinguishing unit of FIG. 7 viewed from below;
9 is a cross-sectional view along line IX-IX of FIG. 8, a view for explaining that a wire heater is installed across a rubber seat cap;
10 is a cross-sectional view taken along line XX of FIG. 8, a view for explaining that the rubber seat cap and the first and second terminals of the band sheet are installed to be spaced apart;
11 is a diagram for explaining the operation of the interlocking fire extinguishing unit of FIG. 10;
12 is a cross-sectional view taken along line IX-IX of FIG. 7, and is a view for explaining that the interlocking fire extinguishing unit is movably attached within the switchboard body by the magnetic attachment unit.

Hereinafter, a functional switchboard for a photovoltaic device according to the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, what is described as "above" or "above" may include not only what is directly on top of contact but also what is on top of non-contact. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. Terms are only used to distinguish one component from another. Singular expressions include plural expressions unless the context clearly dictates otherwise. In addition, when a certain component is said to "include", this means that it may further include other components without excluding other components unless otherwise stated. In addition, terms such as "...unit" and "module" described in the specification mean a unit that processes at least one function or operation.

1 is a view for explaining the overall configuration of a solar power generation device to which a functional switchboard of the present invention is applied, FIG. 2 is a view for explaining the internal configuration of the functional switchboard for a photovoltaic power generation device of FIG. 1, and FIG. 2 is a block diagram for explaining the configuration of the functional switchboard.

As shown, the functional switchboard 100 for a photovoltaic device according to the present invention is for supplying power to a load or distributing power to a commercial system in connection with the photovoltaic device 200 that generates photovoltaic power. a switchboard body 10 in which various accessories (E) for power distribution are embedded; a temperature sensing unit 20 that senses the temperature inside the switchboard body 10 and generates a corresponding temperature signal S1; a smoke sensing unit 30 that senses smoke generated inside the switchboard body 10 and generates a corresponding smoke signal S2; an optical sensing unit 40 that senses the amount of light generated inside the switchboard body 10 and generates a corresponding optical signal S3; an event signal generator 50 that generates an event signal FS when at least two or more of the temperature signal S1, the smoke signal S2, and the light signal S3 are generated; an interlocking fire extinguishing unit 60 installed inside the switchboard body 10 and interlocking when an event signal FS is generated to automatically discharge an extinguishing agent for extinguishing; a magnetic attachment part 70 installed at the upper end of the interlocking fire extinguishing part 60 to magnetically attach the interlocking fire extinguishing part 60 to the inner circumferential surface of the switchboard body 10; When the event signal (FS) is generated, the event signal transmission unit 80 for transmitting the event signal (FS) to a manager server (not shown); characterized in that it comprises a.

The photovoltaic power generation device 200 includes a plurality of unit solar cell arrays 210, 210', and 210" in which the solar cell modules M constitute one unit, and DC power output from the plurality of solar cell modules. Unit connection boards 220 (220') (220") that merge and output and a plurality of unit inverters that convert DC power output from unit connection boards 220 (220') (220") into AC power ( 230) (230') (230").

Each of the unit solar cell arrays 210, 210', and 210" is implemented by connecting a plurality of solar cell modules (M) in the horizontal and vertical directions, and the solar cell module (M) is 50 It outputs DC power of ~ 70 V. These solar cell modules (M) are configured by connecting about 8 to 12 in series, and output DC power having a voltage of about 300 ~ 700 V.

The unit connection panel 220, 220', 220" is connected to the output terminal of the unit solar cell array 210, 210', 210", and is blocked when overcurrent is supplied to protect the unit solar cell array. It is composed of a fuse and a backflow prevention diode to prevent voltage reverse flow from the unit inverter.

The unit inverter 230 (230') (230") is connected to the output terminal of the unit connection board 220 (220') (220"), and is input from the unit connection board 220 (220') (220"). It converts DC power to AC power at a frequency and phase that can be used by devices operating in homes or factories.

The switchboard body 10 is implemented by bending and welding steel plates in the shape of a hexahedron, and its entire inner and outer surfaces are powder-coated so that it does not corrode even in rainwater or a humid environment, and the external appearance is protected. The switchboard body 10 has a structure in which a door for entry or exit or a ventilation hole for ventilation is formed, and there are various accessories (E) inside, for example, a transformer for converting voltage, a power line communication (PLC), and a control for control. Panels, various terminals for supplying and controlling electricity, relays (relays), circuit breakers and fuses for voltage cutoff (hereinafter referred to as accessories (E)) are installed.

The event signal generator 50 generates an event signal FS when at least two of the temperature signal S1, the smoke signal S2, and the light signal S3 are generated. Accordingly, it is possible to detect an ignition generated inside the switchboard at an early stage, and accurately determine whether or not it is a situation caused by an environment outside the switchboard.

When the event signal FS is generated, the event signal transmission unit 80 transmits the event signal FS to a manager server (not shown), so that a remote manager can dispatch to manage the switchboard. .

FIG. 4 is a block diagram illustrating the configuration of the temperature sensing unit of FIGS. 2 and 3 .

The temperature sensing unit 20 generates a temperature signal S1 indicating that a fire has occurred when the temperature inside the switchboard body 10 reaches a set temperature, for example, 80° C. or higher. The temperature sensing unit 20 is installed on one side of the inner circumferential surface of the switchboard body 10, and includes a first temperature sensor 21 that senses the ambient temperature and generates a corresponding first temperature signal S1a; It is installed on the inner circumferential surface of the switchboard body 10 opposite the sensor 21 and includes a second temperature sensor 22 that senses the ambient temperature and generates a corresponding second temperature signal S1b.

Since various parts E are installed inside the switchboard body 10, there may be various sources of ignition. Therefore, it is difficult to sense the heat of the ignition source when the ignited accessory is far from the temperature sensing unit 20 or is covered by a specific accessory. In this case, it becomes difficult for the temperature sensing unit 20 to sense the temperature until the fire progresses in earnest in the switchboard body 10, which means that the fire can spread throughout the switchboard.

Due to this problem, the temperature sensing unit 20 adopts the first temperature sensor 21 and the second temperature sensor 22 that are separated independently from each other, and accordingly, in the accessories at a specific position inside the switchboard body 10 Even if ignition progresses or the ignition component is covered by other components, heat generated from a specific ignition source can be effectively sensed at an early stage.

FIG. 5 is a block diagram illustrating the configuration of the smoke sensing unit of FIGS. 2 and 3 .

When smoke is generated inside the switchboard body 10, the smoke sensing unit 30 senses it and generates a corresponding smoke signal S2. The smoke sensing unit 30 is installed on one side of the inner circumferential surface of the switchboard body 10, and includes a first smoke sensor 31 that senses ambient smoke and generates a corresponding first smoke signal S2a, and It is installed on the inner circumferential surface of the switchboard body 10 opposite the sensor 31 and includes a second smoke sensor 32 that senses ambient smoke and generates a corresponding second smoke signal S2b.

Since various parts E are installed inside the switchboard body 10, there may be various sources of ignition. Therefore, it is difficult to sense smoke when the ignited accessory is far from the smoke sensing unit 30 or is covered by a specific accessory. In this case, it becomes difficult for the smoke sensing unit 30 to sense the fire until the fire progresses in earnest in the switchboard body 10, which means that the fire can spread to the entire switchboard.

Due to this problem, the smoke sensing unit 30 adopts the first smoke sensor 31 and the second smoke sensor 32 that are separated independently from each other, and accordingly, in the accessories at a specific position inside the switchboard body 10 Smoke generated from a specific ignition source can be effectively sensed at an early stage, even if smoke is generated or the smoke-generating component is covered by other components.

FIG. 6 is a block diagram illustrating the configuration of the light sensing unit of FIGS. 2 and 3 .

The light sensing unit 40 senses when a flame is generated inside the switchboard body 10 and generates a corresponding light signal S3. The light sensing unit 40 is installed on one side of the inner circumferential surface of the switchboard body 10, and includes a first optical sensor 41 that senses ambient light and generates a corresponding first optical signal S3a; It is installed on the inner circumferential surface of the switchboard body 10 opposite the sensor 41 and includes a second optical sensor 42 that senses ambient light and generates a corresponding second optical signal S3b.

Since various parts E are installed inside the switchboard body 10, there may be various sources of ignition. Therefore, when the ignited accessory is far from the light sensing unit 40 or is covered by a specific accessory, it is difficult to sense the light caused by ignition (flame). In this case, it becomes difficult for the light sensing unit 40 to sense the fire until the fire progresses in earnest in the switchboard body 10 and the amount of light increases, which means that the fire can spread to the entire switchboard.

Due to this problem, the optical sensing unit 40 adopts the first optical sensor 41 and the second optical sensor 42 that are separated independently from each other, and accordingly, in the accessory at a specific position inside the switchboard body 10 Even if ignition is progressing or the ignited accessory is covered by another accessory, light from a flame generated from a specific ignition source can be effectively sensed at an early stage.

7 is a perspective view of the interlocking fire extinguishing unit of FIGS. 2 and 3, and FIG. 8 is a perspective view of the interlocking fire extinguishing unit of FIG. 7 viewed from below. In addition, FIG. 9 is a cross-sectional view taken along the line IX-IX of FIG. 8, and is a view for explaining that the wire heater is installed across the rubber seat cap, and FIG. 10 is a cross-sectional view taken along the line X-X of FIG. 8, the rubber seat cap It is a view for explaining that the first and second terminals of the band sheet are installed apart from each other, and FIG. 11 is a view for explaining the operation of the interlocking fire extinguishing unit of FIG. 10 .

The interlocking fire extinguishing unit 60 is installed on the inner ceiling of the switchboard body 10, and the housing 61 is opened downward, and a rubber seat cap is installed to wrap around the housing 61 to seal and shield the opened portion downward. (62), the powder fire extinguishing agent 63 filled between the housing 61 and the rubber seat cap 62, and a wire heater symmetrically installed on the surface of the rubber seat cap 62 to generate heat when power is applied ( 64), a pair of mounting wings 65 formed on the inner upper surface of the housing 61, and a pair of mounting wings 65, which are mounted on the mounting wings 65, and expand gas between the housing 61 and the rubber seat cap 62 when power is applied. A gas generator 66 that generates a gas generator 66, a band sheet 67 that is connected to the edge of the rubber seat cap 62 and then overlapped across the rubber seat cap 62, a rubber seat cap 62 and a band sheet ( 67) between the first terminal 68 installed on the rubber seat cap 62, and between the rubber seat cap 62 and the band sheet 67 installed on the band sheet 67, the band sheet 67 ) includes a second terminal 69 that connects to the first terminal 68 and supplies power to the wire heater 64 when it is inflated in conjunction with the inflating rubber seat cap 62.

As shown in FIG. 9, the housing 61 is opened downward and forms a flat cylindrical cap shape, and on the outer circumferential surface of the lower end, the rim of the inner circumferential edge of the rubber seat cap 62 is hooked. It is formed stepwise and includes an installation groove 61b formed at the upper end to which the magnetic attachment part 70 is installed.

The rubber seat cap 62 surrounds the circumference of the housing 61 so as to completely cover the opened portion of the housing 61, and maintains the state in which the powder fire extinguishing agent 63 is filled in the housing 61. The rubber seat cap 62 has elasticity so that it can be inflated like a balloon by gas generated from a gas generator 66 to be described later. The rubber seat cap 62 bursts when power is applied to the wire heater 64, and in this case, the powder fire extinguishing agent 63 filled in the housing 61 is discharged to the inside of the switchboard body 10.

The powder extinguishing agent 63 extinguishes the fire by a suffocating effect or a cooling effect in the event of an electrical fire, for example, silver ammonium dihydrogen phosphate.

As shown in FIG. 8, the wire heaters 64 are symmetrically installed on the surface of the rubber seat cap 62, and two are installed in this embodiment.

Mounting blades 65 are formed on the upper surface of the inner circumference of the housing 61 to position the gas generating unit 66 inside the upper part of the housing 61 .

The gas generator 66 is operated to generate expansion gas when the event signal FS is generated, and as shown in FIG. 9, the gas generator 66 is mounted on a pair of mounting wings 65 and is opened upward. The sub-enclosure 66b sealed with the film 66a, the tube 66c embedded in the sub-enclosure 66b, and the tube 66c installed on the surface of the tube 66c are melted when power is applied. A bursting sub-wire heater 66d is included.

Each of the sub-enclosure 66b and the tube 66d accommodates first and second solvents that generate expansion gas when mixed with each other, and are usually separated independently from each other.

The sub-enclosure 66b has a shape that is open to the upper side, and the open portion is sealed and closed with a film 66a in a state where the tube 66c is positioned inside. Accordingly, the first solvent accommodated in the sub enclosure 66b is prevented from being evaporated by the film 66a, and the second solvent contained in the tube 66c immersed in the first solvent remains independent of the first solvent.

When the event signal FS is generated, the sub-wire heater 66d melts and destroys the tube 66c to mix the second solvent with the first solvent.

The first and second solvents maintain a chemically stable state when they are accommodated in the sub-enclosure 66b and the tube 66c in an independent state, and when mixed with each other, a chemical reaction proceeds, For example, CO2 is produced. The first and second solvents for this are various, and examples thereof include carbonates (Na2CO3, NaHCO3) and hydrochloric acid (HCl).

By this gas generating unit 66, the first and second solvents are normally accommodated independently in each of the sub enclosure 66b and the tube 66c. However, when the event signal FS is generated, power is applied to the sub-wire heater 66d to destroy the tube 66c, and then the second solvent filled in the tube 66c escapes and chemically reacts with the first solvent. Expansion gases are rapidly generated. This expanding gas is then injected into the fire extinguishing agent 63 while destroying the film 66a, and the expanding gas inflates the rubber seat cap 62 and the band sheet 67.

As shown in FIGS. 8 and 10, the first and second terminals 68 and 69 are installed between the rubber seat cap 62 and the band sheet 67, and the first terminal 68 is the rubber seat. It is installed slightly to the left with respect to the center of the cap 62, and the second terminal 69 is installed slightly to the right with respect to the center of the rubber seat cap 62, and the first and second terminals 68 and 69 are slightly separated. The first and second terminals 68 and 69 are connected to each other when the rubber seat cap 62 and the band sheet 67 are inflated by the expansion gas so that power is applied to the wire heater 64, In this case, the wire heater 64 bursts the rubber seat cap 62 while being heated.

To explain this in more detail, when expansion gas is generated in the gas generator 66 by the event signal FS, as shown in FIG. 11, the rubber seat cap 62 and the band sheet 67 are inflated while The first and second terminals 68 and 69 are interconnected, and the connected first and second terminals 68 and 69 apply power to the wire heater 64 to burst the inflated rubber seat cap 62. will be. Accordingly, the powder fire extinguishing agent filled between the housing 61 and the rubber seat cap 62 is strongly ejected to the surroundings by the pressure of the expanding gas to quickly extinguish the fire.

In this way, since the interlocking fire extinguishing unit 60 ejects the powder fire extinguishing agent 63 filled in the housing 61 downward when the rubber seat cap 62 bursts, unlike conventional fire extinguishers, it is difficult to spray the fire extinguishing liquid. It is not necessary to adopt a high-pressure tank structure for Accordingly, the risk of explosion can be eliminated even when installed in the switchboard body 10 where the internal temperature rises to 60 to 70 °C or more in midsummer.

FIG. 12 is a cross-sectional view taken along the line IX-IX of FIG. 7, and is a view for explaining that the interlocking fire extinguishing unit is movably attached within the switchboard body by the magnetic attachment unit.

The magnetic attachment part 70 is for magnetically attaching the interlocking fire extinguishing part 60 to a specific position on the inner circumferential surface of the switchboard body 10 . The interlocking fire extinguishing unit 60 can be easily moved to another position by the magnetic attachment unit 70 .

As described above, according to the present invention, the temperature sensing unit 20 for measuring the temperature inside the switchboard body 10, the smoke sensing unit 30 for sensing smoke, and the light sensing unit 40 for sensing light When at least two or more of the signals are generated, an event signal FS for operating the interlocking fire extinguishing unit 60 is generated, thereby preventing the interlocking fire extinguishing unit 60 from malfunctioning.

In addition, the temperature sensing unit 20 is composed of first and second temperature sensors 21 and 22 installed to face each other on the inner circumferential surface of the switchboard body 10, and the smoke sensing unit 30 faces the inner circumferential surface of the switchboard body 10. It is composed of first and second smoke sensors 31 and 32 installed to see, and the optical sensing unit 40 is installed to face the inner circumferential surface of the switchboard body 10 with the first and second optical sensors 41 and 42 installed. Since it is configured, when ignition starts in a specific component E, it can be sensed immediately before the fire spreads to the entire switchboard, and accordingly, the fire can be extinguished early, preventing the possibility of the fire spreading around the switchboard.

In addition, since the interlocking fire extinguishing unit 60 does not use a high-pressure tank, it is possible to eliminate the possibility of explosion even if the internal temperature rises to 60 to 70 ° C. or higher, thereby enabling safe operation.

And when an event situation occurs, the event signal transmission unit 80 transmits the event signal FS to a manager server (not shown), and enables a remote manager to mobilize for active response.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is only exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

E ... Accessories
10 ... switchboard body 20 ... temperature sensing unit
21 ... first temperature sensor 22 ... second temperature sensor
30 ... smoke sensing unit 31 ... first smoke sensor
32 ... second smoke sensor 40 ... light sensing unit
41 ... first optical sensor 42 ... second optical sensor
50 ... event signal generating unit 60 ... interlocking fire extinguishing unit
61 ... housing 61a ... catch jaw
61b ... installation groove 62 ... rubber seat cap
63 ... dry chemical 64 ... wire heater
65 ... wing 66 ... gas generator
66a ... film 66b ... subenclosure
66c ... tube 66d ... subwire heater
67 ... band sheet 68 ... first terminal
69 ... second terminal 70 ... magnetic attachment part
80 ... event signal transmission unit

Claims (5)

In connection with the photovoltaic power generation device 200 that generates photovoltaic power, it is for supplying power to a load or distributing power to a commercial system,
A switchboard body 10 in which various accessories (E) for power distribution are built in;
a temperature sensing unit 20 that senses the temperature inside the switchboard body 10 and generates a corresponding temperature signal S1;
a smoke sensing unit 30 that senses smoke generated inside the switchboard body 10 and generates a corresponding smoke signal S2;
an optical sensing unit 40 that senses the amount of light generated inside the switchboard body 10 and generates a corresponding optical signal S3;
an event signal generating unit (50) generating an event signal (FS) when at least two or more of the temperature signal (S1), the smoke signal (S2), and the light signal (S3) are generated;
an interlocking fire extinguishing unit 60 installed inside the switchboard body 10 and interlocking when an event signal FS is generated to automatically discharge an extinguishing agent for extinguishing; and
A magnetic attachment part 70 installed at the upper end of the interlocking fire extinguishing part 60 to attach the interlocking fire extinguishing part 60 to the inner circumferential surface of the switchboard body 10 by magnetic force;
The interlocking fire extinguishing unit 60 is installed on the inner ceiling of the switchboard body 10, is open downward, and has a cylindrical housing having an installation groove 61b on the upper surface in which the magnetic attachment unit 70 is inserted and installed ( 61), a rubber seat cap 62 installed around the housing 61 to seal and shield the opening downward, and a powder fire extinguishing agent filled between the housing 61 and the rubber seat cap 62 ( 63), and a wire heater 64 installed symmetrically on the surface of the rubber seat cap 62 to generate heat when power is applied,
The interlocking fire extinguishing unit 60,
A pair of mounting wings 65 formed on the inner upper surface of the housing 61 and mounted on the mounting wings 65, when power is applied, expands gas between the housing 61 and the rubber seat cap 62. A gas generator 66 generated, a band sheet 67 that is connected to the edge of the rubber seat cap 62 and then overlapped across the rubber seat cap 62, and the rubber seat cap 62 and the band The first terminal 68 installed on the rubber seat cap 62 between the seats 67 and the band seat 67 installed between the rubber seat cap 62 and the band sheet 67, A second terminal 69 connected to the first terminal 68 to supply power to the wire heater 64 when the band sheet 67 is inflated by interlocking with the inflating rubber seat cap 62 is included. do,
The gas generator 66 is operated to generate expansion gas when the event signal FS is generated, and is mounted on the pair of mounting wings 65 to accommodate the first solvent and is opened upward. A sub-enclosure 66b whose portion is sealed with a film 66a, and a tube 66c containing a second solvent that is embedded in the sub-enclosure 66b and which generates an expansion gas when mixed with the first solvent; It is installed on the surface of the tube (66c) and further comprises a sub-wire heater (66d) that melts and bursts the tube (66c) when power is applied; characterized in that, a functional switchboard for a solar power generation device. According to claim 1,
The temperature sensing unit 20 is installed on one side of the inner circumferential surface of the switchboard body 10, and includes a first temperature sensor 21 that senses the ambient temperature and generates a corresponding first temperature signal S1a; 1. It is installed on the inner circumferential surface of the switchboard body 10 opposite the temperature sensor 21, and includes a second temperature sensor 22 that senses the ambient temperature and generates a corresponding second temperature signal S1b;
The smoke sensing unit 30 is installed on one side of the inner circumferential surface of the switchboard body 10, and includes a first smoke sensor 31 that senses surrounding smoke and generates a corresponding first smoke signal S2a; 1. It is installed on the inner circumferential surface of the switchboard body 10 opposite the smoke sensor 31, and includes a second smoke sensor 32 that senses ambient smoke and generates a corresponding second smoke signal S2b;
The light sensing unit 40 is installed on one side of the inner circumferential surface of the switchboard body 10, and includes a first optical sensor 41 that senses ambient light and generates a corresponding first optical signal S3a; It is installed on the inner circumferential surface of the switchboard body 10 opposite the optical sensor 41 and includes a second optical sensor 42 that senses ambient light and generates a corresponding second optical signal S3b. , Functional switchboard for solar power generation equipment. delete delete The method of claim 1, wherein the interlocking fire extinguishing unit 60,
When the event signal (FS) is generated, the event signal transmission unit (80) for transmitting the event signal (FS) to a manager server (not shown) characterized in that it further comprises, a functional switchboard for a photovoltaic device.

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