CN111600223A - High-protection type electric energy storage device for photovoltaic power grid and control method - Google Patents

Abstract

A high-protection power energy storage device and a control method for a photovoltaic power grid, wherein the electric cabinet is installed in the middle position directly above the base, the storage battery is installed at the inner bottom of the electric cabinet, the inverter, the electricity meter and the main switch are installed inside the electric cabinet in turn, and the inverter, the electricity meter and the main switch are located above the battery, the ceiling is installed just above the outside of the electric cabinet, the exhaust fan is installed above the inner top of the electric cabinet, The four blowing fans are respectively installed on the left and right sides of the interior of the electrical cabinet, the lightning rod is installed on the upper side of the ceiling, the detection device is installed at the inner middle position of the base, and the bird repellent is installed On the other side of the ceiling, it has a simple structure and can effectively prevent lightning strikes and sunlight exposure. The exhaust fan and blowing fan can ensure the temperature inside the electrical cabinet, and at the same time, the detection device can detect the accumulated water at the location of the electrical cabinet. situation to avoid electric shock injuries.

Description

A kind of high protection type electric energy storage device and control method for photovoltaic power grid

technical field

The invention relates to the technical field of electric energy storage devices, in particular to a high protection type electric energy storage device and a control method for photovoltaic power grids.

Background technique

Photovoltaic is the abbreviation of solar photovoltaic power generation system. It is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. There are two modes of independent operation and grid-connected operation.

The current safety performance of photovoltaic energy storage devices is very poor, and it is easy to be shocked by electric shock during thunderstorms, resulting in property damage. Loss.

SUMMARY OF THE INVENTION

The purpose of the present invention is to aim at the defects and deficiencies of the prior art, to provide a high-protection type electric energy storage device and a control method for the photovoltaic power grid, which has a simple structure and can effectively prevent lightning strikes and sunlight exposure. The blowing fan can ensure the temperature inside the electric cabinet, and at the same time, the detection device can detect the water accumulation in the position of the electric cabinet, so as to avoid the accident of electric shock and injury.

In order to achieve the above object, the present invention adopts the following technical solutions: it includes a base, an electric cabinet, a battery, an inverter, an electricity meter, a main switch, an exhaust fan, a blowing fan, a ceiling, a lightning rod, a detection device, and a bird repellent. The electric cabinet is installed in the middle position directly above the base, the battery is installed at the inner bottom of the electric cabinet, the inverter, the electricity meter and the main switch are installed in the electric cabinet in sequence, and the inverter, the electricity meter and the mains circuit breaker are installed in sequence. The electric switch is located above the battery, the ceiling is installed just above the outside of the electric cabinet, the exhaust fan is installed above the inner top of the electric cabinet, and the four blowing fans are respectively installed on the left and right sides of the inside of the electric cabinet. , the lightning rod is installed on the upper side of the ceiling, the detection device is installed at the inner middle position of the base, and the bird repellent is installed on the other side of the ceiling.

Preferably, the detection device of the present invention includes a detection rod, a slider, a sensor, a limit block, and a signal line. The limit block is fixedly connected to the bottom of the detection rod, the slider is sleeved on the detection rod, and the sensor is installed on the bottom of the detection rod. Inside the upper side, the signal line is installed above the detection rod, one end of the signal line is connected with the sensor, and the other end of the signal line is electrically connected with the main switch.

Preferably, a plurality of support springs and a connecting wire are arranged between the base and the connection between the electrical cabinet of the present invention, and a plurality of through holes are evenly arranged around the outer side of the base.

Preferably, four card slots are evenly arranged on the left and right sides of the outside of the electrical cabinet of the present invention, and the four card slots correspond to the positions of the four blowing fans respectively. A flashing buzzer is installed on the top of the device, and the flashing buzzer is electrically connected with the sensor.

Preferably, filter cotton is installed inside the four card slots of the present invention.

Preferably, the safety door of the present invention is provided with an observation window at a position corresponding to the electricity meter, a temperature display screen is arranged below the observation window, and a lockable handle is installed on one side of the safety door.

Preferably, a first temperature sensor is installed on the inner walls of the left and right sides of the electric cabinet of the present invention, and the first temperature sensor is electrically connected to the temperature display screen.

Preferably, a second temperature sensor is installed at the top middle position of the base of the present invention, and the second temperature sensor is electrically connected to the temperature display screen.

A high-protection power storage device for photovoltaic power grid, the control method of which includes the following operation steps:

S1. During the rainy season, in the rainy season for a long time, when the amount of water accumulated outside is too large, the accumulated water enters the interior of the base from the through hole at the bottom of the base. As the accumulated water becomes higher and higher, the slider follows the water level. When the slider rises to the sensor position, the sensor sends a signal to the main switch, thereby controlling the main switch to break, and at the same time controlling the flashing buzzer to give sound and light alarm;

S2. When the internal components of the electric cabinet are working normally, the exhaust fan is always on to remove the heat inside the electric cabinet. At the same time, the four blowing fans continuously blow air to the inside of the electric cabinet for cooling. The cabinets are connected by connecting wires, and the lightning strikes the lightning rod. Through the connection of the connecting wires, the lightning is introduced into the ground, so as to prevent the lightning from directly hitting the electric cabinet, thereby affecting the damage to the internal electrical components.

After adopting the above technical scheme, the present invention has the following beneficial effects: it has a simple structure, can effectively prevent lightning strikes and sunlight exposure, can ensure the temperature inside the electric cabinet through the exhaust fan and the blowing fan, and at the same time, can detect the temperature inside the electric cabinet through the detection device. Water accumulation at the location to avoid electric shock injuries.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the internal structure schematic diagram in the present invention;

3 is a schematic structural diagram of the card slot 21 and the filter cotton 211 in the present invention;

FIG. 4 is a schematic structural diagram of the detection device 11 in the present invention.

Description of reference numerals: base 1, electric cabinet 2, battery 3, inverter 4, electricity meter 5, main switch 6, exhaust fan 7, blowing fan 8, ceiling 9, lightning rod 10, detection device 11, bird repellent 12, Detection rod 111, slider 112, sensor 113, limit block 114, signal wire 115, support spring 13, connecting wire 14, through hole 15, card slot 21, safety door 22, flash buzzer 23, filter cotton 211, observation Window 221 , temperature display screen 222 , lockable handle 223 , first temperature sensor 16 , second temperature sensor 17 .

Detailed ways

1-4, the technical solution adopted in this specific embodiment is: it includes a base 1, an electric cabinet 2, a battery 3, an inverter 4, an electricity meter 5, a main switch 6, an exhaust fan 7, and a blowing fan 8 , ceiling 9, lightning rod 10, detection device 11, bird repellent 12, the electric cabinet 2 is installed in the middle position directly above the base 1, the battery 3 is installed at the inner bottom of the electric cabinet 2, the inverter 4 , the electricity meter 5 and the main switch 6 are sequentially installed inside the electric cabinet 2, and the inverter 4, the electricity meter 5 and the main switch 6 are located above the battery 3, and the ceiling 9 is installed directly above the outside of the electric cabinet 2, The exhaust fan 7 is installed above the inner top of the electrical cabinet 2, the four blowing fans 8 are respectively installed on the left and right sides of the inside of the electrical cabinet 2 in pairs, and the lightning rod 10 is installed on the upper side of the ceiling 9, The detection device 11 is installed at the inner middle position of the base 1 , and the bird repellent 12 is installed on the other side of the ceiling 9 .

As shown in FIG. 4 , the detection device 11 of the present invention includes a detection rod 111 , a slider 112 , a sensor 113 , a limit block 114 , and a signal line 115 . The limit block 114 is fixedly connected to the bottom of the detection rod 111 , and the slider 112 is set Connected to the detection rod 111, the sensor 113 is installed inside the upper side of the detection rod 111, the signal wire 115 is installed above the detection rod 111, and one end of the signal wire 115 is connected to the sensor 113, and the other end of the signal wire 115 is connected to the main switch 6 is electrically connected, and the detection device 11 is used to detect the water accumulation in the electric cabinet 2. When the water level rises to the height of the water accumulation warning sensor 113, the sensor 113 controls the main switch 6 to open, and at the same time controls the flashing buzzer 23 to give an alarm .

As shown in FIG. 1 and FIG. 2 , a plurality of support springs 13 and a connecting wire 14 are arranged between the connection between the base 1 and the electrical cabinet 2 of the present invention. The support springs 13 can eliminate the vibration of the electrical cabinet 2 and place the electrical cabinet. 2. Vibration affects the work of the internal electrical components. The connecting wire 14 is used to connect the base 1 and the electric cabinet 2, so that the lightning rod 10 can be grounded to effectively protect the electric cabinet 2 and prevent lightning strikes. Several through holes 15 are provided, and the through holes 15 are used for the inflow of accumulated water, so that the detection device 11 can be excited to work.

As shown in FIG. 1 and FIG. 2 , as shown in the present invention, four card slots 21 are evenly arranged on the left and right sides of the outside of the electric cabinet 2 of the present invention, and the four card slots 21 are respectively connected with the four blowing fans 8 Corresponding to the position of the electric cabinet 2 , a safety door 22 is provided on the outer side of the front of the electric cabinet 2 , and a flashing buzzer 23 is installed on the top of the electric cabinet 2 , and the flashing buzzer 23 is electrically connected with the sensor 113 .

As shown in FIG. 1 , FIG. 2 and FIG. 3 , filter cotton 211 is installed inside the four card slots 21 of the present invention. The filter cotton 211 can filter the external air dust and prevent the dust from entering the interior of the electric cabinet 2 , thus affecting the normal operation of the internal electrical components.

As shown in FIG. 1 , an observation window 221 is provided on the safety door 22 of the present invention at a position corresponding to the electricity meter 5 , and the total amount of power generation and single-day power generation can be directly checked through the observation window 221 , and the lower part of the observation window 221 is provided There is a temperature display screen 222 , through which the external temperature can be compared with the temperature inside the electrical cabinet 2 , and a lockable handle 223 is installed on one side of the safety door 22 .

As shown in FIG. 2 , the first temperature sensor 16 is installed on the inner walls of the left and right sides of the electric cabinet 2 of the present invention, and the first temperature sensor 16 is electrically connected with the temperature display screen 222 . The first temperature sensor 16 uses It is used to detect the temperature inside the electric cabinet 2.

As shown in FIG. 1 and FIG. 2 , a second temperature sensor 17 is installed at the top middle position of the base 1 of the present invention, and the second temperature sensor 17 is electrically connected to the temperature display screen 222 , and the second temperature sensor 17 is used to detect electrical Temperature outside cabinet 2.

A high-protection power storage device for photovoltaic power grid, the control method of which includes the following operation steps:

S1. During the rainy season, in the rainy season for a long time, when the amount of water accumulated outside is too large, the accumulated water enters the interior of the base 1 from the through hole 15 at the bottom of the base 1. The block 112 continuously rises following the change of the water level. When the slider 112 rises to the position of the sensor 113, the sensor 113 sends a signal to the main switch 6, thereby controlling the main switch 6 to open, and at the same time controlling the flashing buzzer 23 to give an audible and visual alarm.

S2. When the internal components of the electric cabinet 2 are working normally, the exhaust fan 7 is always on to remove the heat inside the electric cabinet. At the same time, the four blowing fans 8 continuously blow air to the electric cabinet for cooling. The base 1 and the electrical cabinet 2 are connected by a connecting wire 14, and the lightning strikes the lightning rod 10. Through the connection of the connecting wire 14, the lightning is introduced into the ground, so as to prevent the lightning from directly hitting the electrical cabinet 2, thereby affecting the damage to the internal electrical components.

The working principle of the present invention: when in use, the observation window 221 outside the safety door 22 can directly check the total power generation and the single-day power generation, and the temperature display 222 can check the external temperature and the temperature inside the electric cabinet 2. , the exhaust fan 7 can remove the heat inside the electrical cabinet 2 in time, and the four blowing fans 8 continuously blow air to the inside of the electrical cabinet 2 for cooling to ensure that the temperature in the electrical cabinet 2 is normal. Exposure to sunlight can also prevent rain and snow from falling directly on the electric cabinet 2 in rainy and snowy weather. The lightning rod 10 on the top can prevent the electric cabinet 2 from being electrocuted in thunderstorm weather, so as to ensure the normal use of the electric cabinet 2 and the bird repellent on the top. The device 12 prevents birds from standing on the electric cabinet 2 for a long time, preventing the feces of birds from falling on the electric cabinet 2, causing corrosion and breakdown of the electric cabinet for a long time, thereby affecting the damage of the internal electrical components. A long-term rainstorm can cause the electric cabinet 2 to be submerged by water and cause electric shock casualties. The uniform through holes 15 around the outer side of the base 1 can allow rainwater to enter the interior of the base 1, thereby making the slider 112 rise, but When the slider 112 rises to the position of the sensor 113, the sensor 113 controls the main circuit breaker 6 to open, and at the same time controls the flashing buzzer 23 to give an alarm.

After adopting the above technical scheme, the present invention has the following beneficial effects: it has a simple structure, can effectively prevent lightning strikes and sunlight exposure, can ensure the temperature inside the electric cabinet through the exhaust fan and the blowing fan, and at the same time, can detect the temperature inside the electric cabinet through the detection device. Water accumulation at the location to avoid electric shock injuries.

The above is only used to illustrate the technical solution of the present invention and not to limit it. Other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be Included within the scope of the claims of the present invention.

Claims (9)

1. A high protection type electric power energy memory for photovoltaic electric wire netting which characterized in that: the novel wind power generation device comprises a base (1), an electric cabinet (2), a storage battery (3), an inverter (4), an electricity meter (5), a total electric brake (6), an exhaust fan (7), a blowing fan (8), a ceiling (9), a lightning rod (10), a detection device (11) and a bird repeller (12), wherein the electric cabinet (2) is installed at the middle position right above the base (1), the storage battery (3) is installed at the inner bottom of the electric cabinet (2), the inverter (4), the electricity meter (5) and the total electric brake (6) are sequentially installed in the electric cabinet (2), the inverter (4), the electricity meter (5) and the total electric brake (6) are located above the storage battery (3), the ceiling (9) is installed right above the outside of the electric cabinet (2), the fans (7) are installed above the inner top of the electric cabinet (2), and the four blowing fans (8) are respectively installed at the left side and the right side of the inside of the electric cabinet (2) in a pairwise correspondence manner, the lightning rod (10) is installed on one side above the ceiling (9), the detection device (11) is installed in the middle of the inside of the base (1), and the bird repeller (12) is installed on the other side of the ceiling (9).

2. A highly protected electrical energy storage device for a photovoltaic grid according to claim 1, characterized in that: detection device (11) contain detection lever (111), slider (112), sensor (113), stopper (114), signal line (115), stopper (114) fixed connection is in the bottom of detecting lever (111), slider (112) cup joint on detection lever (111), sensor (113) are installed inside the upside of detecting lever (111), signal line (115) are installed in the top of detecting lever (111), and the one end and the sensor (113) of signal line (115) are connected, the other one end and total switch (6) electric connection of signal line (115).

3. A highly protected electrical energy storage device for a photovoltaic grid according to claim 1, characterized in that: a plurality of supporting springs (13) and a connecting wire (14) are arranged between the connecting positions of the base (1) and the electric cabinet (2), and a plurality of through holes (15) are uniformly formed in the periphery of the outer side of the base (1).

4. A highly protected electrical energy storage device for a photovoltaic grid according to claim 1, characterized in that: the outside left and right sides of electricity cabinet (2) evenly is provided with four draw-in grooves (21), and four draw-in grooves (21) respectively with four the position of blowing fan (8) is corresponding, and the positive outside of electricity cabinet (2) is provided with emergency exit (22), and flash of light bee calling organ (23) are installed at the top of electricity cabinet (2), and flash of light bee calling organ (23) and sensor (113) electric connection.

5. A highly protected electrical energy storage device for a photovoltaic grid according to claim 4, characterized in that: the inside of four draw-in grooves (21) all installs filter pulp (211).

6. A highly protected electrical energy storage device for a photovoltaic grid according to claim 4, characterized in that: the position that corresponds with coulometer (5) on emergency exit (22) is provided with observation window (221), and the below of observation window (221) is provided with temperature display screen (222), and lockable handle (223) are installed to one side of emergency exit (22).

7. A highly protected electrical energy storage device for a photovoltaic grid according to claim 1, characterized in that: all install first temperature sensor (16) on the inner wall of the inside left and right sides of electricity cabinet (2), and first temperature sensor (16) and temperature display screen (222) electric connection.

8. A highly protected electrical energy storage device for a photovoltaic grid according to claim 1, characterized in that: second temperature sensor (17) are installed to the top intermediate position of base (1), and second temperature sensor (17) and temperature display screen (222) electric connection.

9. A highly protected electrical energy storage device for photovoltaic grids according to claim 1, the control method of which comprises the following operating steps:

s1, in plum rain season, in long-time heavy rain weather, when the amount of external accumulated water is too large, the accumulated water enters the inside of the base (1) from the through hole (15) at the bottom of the base (1), the sliding block (112) continuously rises along with the change of the water level along with the increasing of the accumulated water, and when the sliding block (112) rises to the position of the sensor (113), the sensor (113) sends a signal to the main switch (6), so that the main switch (6) is controlled to be switched off, and meanwhile, the flash buzzer (23) is controlled to give an audible and visual alarm;

s2, the inside components and parts of electricity cabinet (2) normal operating, exhaust fan (7) are in open state always and get rid of the inside heat of electricity cabinet, and simultaneously, four fan (8) of blowing are continuous to the inside cooling of blowing of electricity cabinet, when meetting thunder and lightning weather, connect through connecting wire (14) between base (1) and the electricity cabinet (2), the thunder and lightning is hitting lightning rod (10), through the connection of connecting wire (14), introduce ground with the thunder and lightning, avoid the thunder and lightning to directly hit electricity cabinet (2), thereby influence inside electric elements and damage.

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