CN214480307U

CN214480307U - Photovoltaic inverter box

Info

Publication number: CN214480307U
Application number: CN202120478411.7U
Authority: CN
Inventors: 尤永成; 尤君梁
Original assignee: Sheyang Handing New Energy Technology Co ltd
Current assignee: Sheyang Handing New Energy Technology Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-10-22
Anticipated expiration: 2031-03-05

Abstract

The utility model relates to a photovoltaic inverter box, including box, air inlet box, centrifugal fan, the switch board, humidity induction unit, temperature induction unit and communication module, box upper end fixedly connected with apron, the box side is provided with a chamber door at least, the box side is provided with an air discharge plate at least, be provided with air filter in the air inlet box and be used for the injection air pump of blowing, centrifugal fan's income wind gap intercommunication the terminal blow vent of air inlet box output, be provided with controller and power module in the switch board, humidity induction unit sets up low level in the box, temperature induction unit sets up high level in the box, temperature induction unit electric connection the controller, communication module sets up the apron upper end. The utility model discloses can effectively promote photovoltaic inverter box power supply reliability, provide good supplementary for the work of dc-to-ac converter.

Description

Photovoltaic inverter box

Technical Field

The utility model relates to a photovoltaic system technical field, concretely relates to photovoltaic inverter box.

Background

The solar photovoltaic power generation system is a novel power generation system which directly converts solar radiation energy into electric energy by utilizing the photovoltaic effect of a solar cell semiconductor material, has two modes of independent operation and grid-connected operation, has the characteristics of modularization of a battery component, convenience in installation and maintenance, flexible use mode and the like, and is a technology with the most application of solar power generation. The photovoltaic inverter box is a container for installing the integrated photovoltaic inverter, and particularly aims at the operation of the photovoltaic inverter in an outdoor severe natural environment, so that a favorable working environment is provided for the photovoltaic inverter. At the present stage, the photovoltaic inverter box has poor capability of coping with the field severe environment, insufficient temperature regulation capability exists, communication measures for timely feeding back the state in the photovoltaic inverter box are lacked, the normal work of the inverter is difficult to guarantee, a photovoltaic power generation system has potential safety hazards, and the power supply reliability is low.

SUMMERY OF THE UTILITY MODEL

For solving the problem that proposes among the above-mentioned background art, the utility model provides a photovoltaic inverter box effectively promotes photovoltaic inverter box power supply reliability, provides good supplementary for the work of dc-to-ac converter.

The utility model provides a following technical scheme:

a photovoltaic inverter box comprising:

the box body is fixedly connected with a cover plate at the upper end, at least one box door is arranged on the side surface of the box body, at least one exhaust plate is arranged on the side surface of the box body, the box door is hinged with the box body, a bar is arranged on the box door, bottom beams are uniformly arranged at the inner bottom wall of the box body, and the upper end of each bottom beam is fixedly connected with a bottom plate;

the air inlet box is arranged on one outer side surface of the box body, the bottom of the air inlet box is a through hole, and an air filter screen and a jet air pump for blowing air are arranged in the air inlet box;

the centrifugal fan is arranged on the inner side surface of the box body; an air inlet of the centrifugal fan is communicated with an air vent at the tail end of the output of the air inlet box;

the control cabinet is installed at the upper end of the bottom plate, a controller and a power supply module are arranged in the control cabinet, the controller is electrically connected with the power supply module, and the centrifugal fan and the injection air pump are electrically connected with the controller;

the humidity sensing unit is used for monitoring the humidity condition in the inverter box body, is arranged at a low position in the inverter box body and is electrically connected with the controller;

the temperature sensing unit is used for monitoring the temperature condition in the inverter box body, is arranged at a high position in the box body and is electrically connected with the controller;

the communication module is used for transmitting and communicating data received by the controller, the communication module is arranged at the upper end of the cover plate and is electrically connected with the controller.

Preferably, the box doors are symmetrically arranged on the box body, and the adjacent box doors are fixedly connected with clamping locking pieces.

Preferably, the injection air pumps are obliquely arranged at the upper ends of the air filter screens, and at least two injection air pumps are arranged.

Preferably, the air filter screen passes through the filter screen frame setting and is in the air inlet box, the filter screen frame is circular, filter screen frame threaded connection be in on the air inlet box inside wall.

Preferably, the power module is used for providing an alternating current or direct current power supply for the controller and an electrical device electrically connected with the controller.

Preferably, the communication module comprises wired or wireless communication.

Preferably, the bottom of the box body is uniformly distributed with supports, and the supports are connected with grounding wires.

Preferably, the inner surface and the outer surface of the box body are both provided with an insulating coating and a hydrophobic coating, and the hydrophobic coating is arranged on the outer side of the insulating coating.

The utility model has the advantages that:

(1): the air inlet box is matched with the centrifugal fan to guide air and send flow to the inverter box, hot air overflows from the exhaust plate, heat generated by the operation of the inverter is taken away in time, heat accumulation is avoided, the temperature in the inverter box is overhigh due to radiation, air is blown by the arranged air injection pump, dust and bacteria attached to the air filter screen can be blown away, the dust and the bacteria are prevented from entering the box body and interfering the operation of the inverter, the reliability of power supply of the inverter box is improved, and the filter screen frame is in threaded connection with the air inlet box and is convenient to replace the air filter screen;

(2): the power supply module provides alternating current or direct current power supply required by work for the controller and an electric device electrically connected with the controller, the humidity and temperature conditions in the inverter box are monitored through the humidity sensing unit and the temperature sensing unit, data signals are fed back to the controller, the centrifugal fan and the jet air pump are controlled to work through the controller, temperature adjustment or air filter screen cleaning is carried out, the data signals received by the controller are transmitted to the photovoltaic system platform through the communication module, the actual temperature and humidity conditions of the inverter are objectively reflected, and timely inspection and maintenance are carried out;

(3): the support that sets up is raised the contravariant case box, reduces adhering to of biological bacterium, and the support is connected with the earth connection, and the insulating coating of setting can improve the security performance of box, strengthens the reliability of contravariant case power supply, and hydrophobic coating can effectively prolong the life of box.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a working principle diagram of the present invention.

The labels in the figure are: 1-a box body; 2-a box door; 21-bar; 22-snap lock; 3-an air inlet box; 4-centrifugal fan; 5-air filter screen; 6-a filter screen frame; 7-jet air pump; 8-an exhaust plate; 9-support; 10-a bottom beam; 11-a base plate; 12-a control cabinet; 13-a controller; 14-a power supply module; 15-a humidity sensing unit; 16-a temperature sensing unit; 17-a communication module; 18-cover plate.

Detailed Description

The technology in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1 to fig. 3, the present embodiment provides a photovoltaic inverter box, including:

the box body 1 is fixedly connected with a cover plate 18 at the upper end of the box body 1, at least one box door 2 is arranged on the side surface of the box body 1, at least one exhaust plate 8 is arranged on the side surface of the box body 1, the box door 2 is hinged with the box body 1, bottom beams 10 are uniformly arranged at the bottom wall in the box body 1, and the upper ends of the bottom beams 10 are fixedly connected with a bottom plate 11;

the air inlet box 3 is arranged on one outer side surface of the box body 1, the bottom of the air inlet box 3 is a through hole, and an air filter screen 5 and a jet air pump 7 for blowing air are arranged in the air inlet box 3;

the centrifugal fan 4 is arranged on the inner side surface of the box body 1; an air inlet of the centrifugal fan 4 is communicated with an air vent at the tail end of the output of the air inlet box 3;

the control cabinet 12 is installed at the upper end of the bottom plate 11, a stable installation state is provided for the control cabinet 12 through the arranged bottom beam 10 and the bottom plate 11, a controller 13 and a power module 14 are arranged in the control cabinet 12, the controller 13 is electrically connected with the power module 14, and the centrifugal fan 4 and the injection air pump 7 are electrically connected with the controller 13;

the humidity sensing unit 15 is used for monitoring the humidity condition in the inverter box body 1, the humidity sensing unit 15 is arranged at a low position in the inverter box body 1, and the humidity sensing unit 15 is electrically connected with the controller 13;

the temperature sensing unit 16 is used for monitoring the temperature condition in the inverter box body 1, the temperature sensing unit 16 is arranged at a high position in the box body 1, and the temperature sensing unit 16 is electrically connected with the controller 13;

the communication module 17 is used for transmitting data received by the communication controller 13, the communication module 17 is arranged at the upper end of the cover plate 18, and the communication module 17 is electrically connected with the controller 13.

In this embodiment, the box doors 2 are symmetrically disposed on the box body 1, the adjacent box doors 2 are fixedly connected with the locking pieces 22, the box doors 2 are locked by the locking pieces 22, the box doors 2 are provided with the bars 21, and the bars 21 are used for opening or closing the box doors 2.

In the embodiment, the injection air pumps 7 are obliquely arranged at the upper ends of the air filter screens 5, at least two injection air pumps 7 are arranged, and air is blown by the injection air pumps to blow away dust and bacteria attached to the air filter screens 5 so as to prevent the dust and bacteria from entering the box body 1 and interfering with the operation of the inverter.

In this embodiment, air filter 5 passes through filter screen frame 6 and sets up in air inlet box 3, and filter screen frame 6 is circular, and 6 threaded connection of filter screen frame are convenient for change air filter 5 on 3 inside walls of air inlet box, threaded connection.

In the present embodiment, the power module 14 is used for providing ac or dc power for the controller 13 and the electrical devices electrically connected to the controller 13.

In this embodiment, the communication module 17 includes wired or wireless communication, and is connected to the photovoltaic system platform through a cable for signal transmission during the wired communication; and during wireless communication, signal transmission is carried out through a wireless communication receiving terminal of the photovoltaic system platform.

In this embodiment, the support 9 is uniformly distributed on the bottom of the box body 1, the support 9 lifts the inverter box body 1 to reduce the attachment of biological bacteria, and the support 9 is connected with a grounding wire to effectively cope with the bad electric leakage of the inverter box body 1 and improve the safety performance of the inverter box body.

In this embodiment, the inner and outer surfaces of the box body 1 are both provided with an insulating coating and a hydrophobic coating, the hydrophobic coating is disposed on the outer side of the insulating coating, and the insulating coating and the hydrophobic coating can be alumina ceramic or ceramic polymer coatings to achieve the purpose of insulation and hydrophobicity, so as to prolong the service life of the box body 1.

The utility model discloses the theory of operation is as follows, power module 14 provides required alternating current or direct current power supply of work for controller 13 and the electric device of being connected with controller 13 electrically, humidity and temperature condition in the inverter box are monitored through humidity induction unit 15 of low level and temperature induction unit 16 of high level, and feedback humidity and temperature data signal for controller 13, control centrifugal fan 4 and the work of spraying air pump 7 through controller 13, carry out temperature regulation or clearance air strainer 5, transmit the data signal that controller 13 received to the photovoltaic system platform through communication module 17, objectively reflect the temperature of actual dc-to-ac converter and the situation of humidity; the air inlet box 3 that sets up cooperates with centrifugal fan 4, draws wind to send the flow in the inverter box, overflows from 8 departments of air discharge plate hot-blastly, in time takes away the heat that inverter work produced, avoids the heat to gather, and the radiation leads to the temperature in the inverter box too high.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A photovoltaic inverter box, comprising:

the refrigerator comprises a refrigerator body (1), wherein a cover plate (18) is fixedly connected to the upper end of the refrigerator body (1), at least one refrigerator door (2) is arranged on the side surface of the refrigerator body (1), at least one exhaust plate (8) is arranged on the side surface of the refrigerator body (1), the refrigerator door (2) is hinged to the refrigerator body (1), a bar (21) is arranged on the refrigerator door (2), bottom beams (10) are uniformly arranged on the inner bottom wall of the refrigerator body (1), and the upper end of each bottom beam (10) is fixedly connected with a bottom plate (11);

the air inlet box (3) is arranged on one outer side surface of the box body (1), the bottom of the air inlet box (3) is a through hole, and an air filter screen (5) and a jet air pump (7) for blowing air are arranged in the air inlet box (3);

the centrifugal fan (4) is arranged on the inner side surface of the box body (1); an air inlet of the centrifugal fan (4) is communicated with an air vent at the output tail end of the air inlet box (3);

the control cabinet (12) is installed at the upper end of the bottom plate (11), a controller (13) and a power module (14) are arranged in the control cabinet (12), the controller (13) is electrically connected with the power module (14), and the centrifugal fan (4) and the injection air pump (7) are electrically connected with the controller (13);

the humidity sensing unit (15) is used for monitoring the humidity condition in the inverter box body (1), the humidity sensing unit (15) is arranged at a low position in the inverter box body (1), and the humidity sensing unit (15) is electrically connected with the controller (13);

the temperature sensing unit (16) is used for monitoring the temperature condition in the inverter box body (1), the temperature sensing unit (16) is arranged at a high position in the box body (1), and the temperature sensing unit (16) is electrically connected with the controller (13);

communication module (17) for the transmission communication the data that controller (13) received, communication module (17) set up apron (18) upper end, communication module (17) electric connection controller (13).

2. The photovoltaic inverter box of claim 1, wherein: the box door (2) is symmetrically arranged on the box body (1), and a clamping locking piece (22) is fixedly connected to the adjacent box door (2).

3. The photovoltaic inverter box of claim 1, wherein: the injection air pump (7) is obliquely arranged at the upper end of the air filter screen (5), and the injection air pumps (7) are at least two.

4. The photovoltaic inverter box of claim 1, wherein: air cleaner (5) set up through screen frame (6) in air inlet box (3), screen frame (6) are circular, screen frame (6) threaded connection be in on the air inlet box (3) inside wall.

5. The photovoltaic inverter box of claim 1, wherein: the power supply module (14) is used for providing alternating current or direct current power supply for the controller (13) and electrical devices electrically connected with the controller (13).

6. The photovoltaic inverter box of claim 1, wherein: the communication module (17) comprises wired or wireless communication.

7. The photovoltaic inverter box of claim 1, wherein: the box body (1) bottom evenly distributed has support (9), support (9) are connected with the earth connection.

8. The photovoltaic inverter box of claim 1, wherein: the inner surface and the outer surface of the box body (1) are provided with an insulating coating and a hydrophobic coating, and the hydrophobic coating is arranged on the outer side of the insulating coating.