CN213660973U

CN213660973U - Special case of distributing type photovoltaic grid-connected

Info

Publication number: CN213660973U
Application number: CN202021910873.3U
Authority: CN
Inventors: 支民; 谢伟新; 申照宁
Original assignee: Hongpei Photovoltaic Co Ltd
Current assignee: Hongpei Photovoltaic Co Ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-07-09
Anticipated expiration: 2030-09-04

Abstract

The utility model relates to the technical field of photovoltaic power generation, in particular to a distributed photovoltaic grid-connected special box, which comprises a box body, wherein the box body comprises a distribution room and a water tank room, the surface of the inner wall of one side of the distribution room is fixedly connected with a snakelike water-cooling pipe, both ends of the snakelike water-cooling pipe extend into the water tank room, a circulating air cooling mechanism is also arranged inside the distribution room, the top end inside the distribution room is fixedly connected with a non-contact temperature sensor through a fixing frame, and the non-contact temperature sensor is connected with a processor through a signal line; the non-contact temperature sensor is connected with the processor, the air temperature in the box body can be detected through the non-contact temperature sensor, when the temperature in the box body is overhigh, the processor can drive the circulating air cooling mechanism and the booster pump, and the heat in the box body is dissipated through air cooling and water cooling; need not the staff and regularly looking over, convenient to use has reduced the accident risk simultaneously, has played the temperature guard action to the block terminal.

Description

Special case of distributing type photovoltaic grid-connected

Technical Field

The utility model relates to a photovoltaic power generation technical field specifically is a special case of distributing type photovoltaic grid-connected.

Background

The distributed photovoltaic power generation is particularly characterized in that the distributed photovoltaic power generation facility is built near a user site, the operation mode is characterized in that the user side automatically uses the power, the surplus electric quantity is on the internet, and the balance adjustment is carried out on a power distribution system. The distributed photovoltaic power generation follows the principles of local conditions, cleanness, high efficiency, scattered layout and near utilization, fully utilizes local solar energy resources, and replaces and reduces fossil energy consumption.

The distributed photovoltaic power generation refers in particular to a distributed power generation system which adopts photovoltaic components and directly converts solar energy into electric energy. The novel photovoltaic power station is a novel power generation and energy comprehensive utilization mode with wide development prospect, advocates the principles of near power generation, near grid connection, near conversion and near use, can effectively improve the generated energy of the photovoltaic power station with the same scale, and effectively solves the problem of loss of electric power in boosting and long-distance transportation.

The distributed photovoltaic power generation system which is most widely applied is a photovoltaic power generation project built on the roof of an urban building. The project has to be accessed to the public power grid, and the project and the public power grid supply power for nearby users.

Most of the existing distribution boxes are of welded structures, namely, sheet metal parts are simply cut, bent, perforated and then welded; the traditional distribution box is composed of a low-voltage apparatus, a fuse, an alternating current contactor, a residual current operated protector, a capacitor, a meter and the like, and is provided with a heat dissipation device such as a shutter or a fan and the like, and when the traditional distribution box is used, the upper limit of the ambient air temperature is required not to exceed 40 ℃, and the average value of the ambient air temperature 17h is required not to exceed 35 ℃.

In practical use, however, when the distribution box is applied to some high-temperature environments, the temperature of air around the box body exceeds an upper limit value, and the distribution box itself can generate heat in use, so that the temperature of the box body is higher, and even greatly exceeds the specified working temperature of a low-voltage electrical appliance in the distribution box. Therefore, the failure of the distribution box is caused, and major accidents such as fire disasters are more likely to be caused.

Disclosure of Invention

An object of the utility model is to provide a special case of distributing type photovoltaic grid-connected to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a special case of distributing type photovoltaic grid-connected, includes the box, the box includes electricity distribution room and water tank room, one side inner wall fixed surface of electricity distribution room is connected with snakelike water-cooled tube, the both ends of snakelike water-cooled tube all extend to in the water tank room, the inside of electricity distribution room still is equipped with circulation forced air cooling mechanism, mount fixedly connected with non-contact temperature sensor is passed through on the inside top of electricity distribution room, non-contact temperature sensor is connected with the treater through the signal line, treater fixed connection is in the inside upper end of electricity distribution room, a plurality of water-cooling mounts of fixedly connected with in the electricity distribution room, the back and the snakelike water-cooled tube of water-cooling mount laminate.

Preferably, the circulation air cooling mechanism includes lead screw adjustment mechanism and gear connecting rod adjustment mechanism, lead screw adjustment mechanism fixes the both sides inner wall at the electricity distribution room, be connected with the installation crossbeam on the lead screw adjustment mechanism, the fixed surface of installation crossbeam is connected with gear connecting rod adjustment mechanism and slide rail, sliding connection has the sliding sleeve on the slide rail, fixedly connected with heat dissipation fan on the sliding sleeve, the sliding sleeve is connected with gear connecting rod mechanism, the treater is connected with the drive circuit who dispels the heat fan motor.

Preferably, lead screw adjustment mechanism includes two lead screws, two the lead screw is located the both sides inner wall of electricity distribution room respectively, the both ends of lead screw all rotate and are connected with the lead screw connecting seat, lead screw connecting seat fixed connection is in the inner wall of electricity distribution room, one of them the output shaft of shaft coupling fixedly connected with lead screw motor is passed through to the one end of lead screw, the lead screw motor passes through motor drive seat fixed connection in lead screw connecting seat, two be connected with belt drive mechanism between the lead screw, two equal threaded connection has a nut seat on the lead screw, two nut seat fixed connection is at the both ends of installation crossbeam respectively, the drive circuit of treater and lead screw motor connects.

Preferably, the gear linkage mechanism includes driving gear and driven gear, the driving gear passes through shaft coupling fixed connection with gear motor's output shaft, gear motor fixed connection is in the inside of installation crossbeam, the driving gear meshes with driven gear mutually, driven gear's surperficial one side is rotated and is connected with the one end of connecting rod one, the other end of connecting rod one rotates the one end that is connected with connecting rod two, the other end of connecting rod two rotates and connects in the sliding sleeve, treater and gear motor's drive circuit connect.

Preferably, a water cooling tank and a booster pump are fixedly connected inside the water tank chamber, one end of the serpentine water-cooled tube extends into the water cooling tank, a water outlet of the booster pump is connected with the other end of the serpentine water-cooled tube, and a water inlet of the booster pump is connected with the water cooling tank through a water guide pipe; the processor is connected with a driving circuit of the booster pump.

Preferably, a plurality of radiating holes are uniformly formed in the surfaces of the two side walls of the box body, and baffles are obliquely arranged at the upper ends of the outer walls of the radiating holes.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the distributed photovoltaic grid-connected special box is provided with a non-contact temperature sensor connected with a processor, the air temperature in the box body can be detected through the non-contact temperature sensor, when the temperature in the box body is overhigh, the processor can drive a circulating air cooling mechanism and a booster pump, and the heat in the box body is dissipated through air cooling and water cooling; need not the staff and regularly looking over, convenient to use has reduced the accident risk simultaneously, has played the temperature guard action to the block terminal.

2) This distributing type photovoltaic is incorporated into power networks special case sets up snakelike water-cooled tube and is connected with the water-cooled box, accessible booster pump sends the water-cooled pump in the water-cooled box to in the snakelike water-cooled tube, and carry out circulative cooling to box inside through snakelike water-cooled tube, set up water-cooling mount and snakelike water-cooled tube contact simultaneously, and use water-cooling mount installation distribution equipment, accessible water-cooling mount contacts with distribution equipment and absorbs the heat that distribution equipment during operation sent, thereby play the cooling effect.

3) This special case of distributed photovoltaic grid-connected sets up circulation forced air cooling mechanism and can guarantee that the heat dissipation fan can remove at the inside circulation of electricity distribution room to make the heat dissipation fan can dispel the heat everywhere to the electricity distribution room inside, improved air-cooled radiating efficiency, can effectively avoid the inside air temperature of box too high to lead to equipment trouble or even the block terminal to catch fire the emergence of accidents such as.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1;

in the drawings, the components represented by the respective reference numerals are listed below:

the device comprises a box body 1, a serpentine water-cooling pipe 2, a non-contact temperature sensor 3, a processor 4, a water-cooling fixing frame 5, a mounting beam 6, a sliding rail 7, a sliding sleeve 8, a heat dissipation fan 9, a lead screw 10, a lead screw connecting seat 11, a lead screw motor 12, a belt transmission mechanism 13, a nut seat 14, a driving gear 15, a driven gear 16, a baffle 17, a first connecting rod 18, a second connecting rod 19, a water-cooling tank 20, a booster pump 21, a water guide pipe 22 and a heat dissipation opening 23.

Detailed Description

The technical solutions 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, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a distributed photovoltaic grid-connected special box comprises a box body 1, wherein the box body 1 comprises a power distribution room and a water tank room, the surface of the inner wall of one side of the power distribution room is fixedly connected with a snakelike water-cooling tube 2, two ends of the snakelike water-cooling tube 2 extend into the water tank room, a circulating air-cooling mechanism is further arranged inside the power distribution room, the top end inside the power distribution room is fixedly connected with a non-contact temperature sensor 3 through a fixing frame, the non-contact temperature sensor 3 is connected with a processor 4 through a signal line, the processor 4 is fixedly connected to the upper end inside the power distribution room, a plurality of water-cooling fixing frames 5 are fixedly connected inside the power distribution room, and the back parts; the non-contact temperature sensor 3 is connected with the processor 4, the air temperature in the box body 1 can be detected through the non-contact temperature sensor 3, when the temperature in the box body 1 is overhigh, the processor 4 can drive the circulating air cooling mechanism and the booster pump 21 to dissipate heat in the box body 1 in an air cooling and water cooling mode; need not the staff and regularly looking over, convenient to use has reduced the accident risk simultaneously, has played the temperature guard action to the block terminal.

The circulating air cooling mechanism comprises a screw rod adjusting mechanism and a gear connecting rod adjusting mechanism, the screw rod adjusting mechanism is fixed on the inner walls of two sides of the power distribution room, an installation beam 6 is connected onto the screw rod adjusting mechanism, the surface of the installation beam 6 is fixedly connected with the gear connecting rod adjusting mechanism and a slide rail 7, a slide sleeve 8 is connected onto the slide rail 7 in a sliding manner, a heat dissipation fan 9 is fixedly connected onto the slide sleeve 8, the slide sleeve 8 is connected with the gear connecting rod mechanism, and a processor 4 is connected with a driving circuit of a motor of the heat dissipation fan 9; the lead screw adjusting mechanism comprises two lead screws 10, the two lead screws 10 are respectively positioned on the inner walls of two sides of the power distribution chamber, two ends of each lead screw 10 are rotatably connected with a lead screw connecting seat 11, the lead screw connecting seats 11 are fixedly connected to the inner wall of the power distribution chamber, one end of one lead screw 10 is fixedly connected with an output shaft of a lead screw motor 12 through a coupler, the lead screw motor 12 is fixedly connected to the lead screw connecting seats 11 through a motor transmission seat, a belt transmission mechanism 13 is connected between the two lead screws 10, two nut seats 14 are respectively and fixedly connected to two ends of the mounting cross beam 6 through threads, and the processor 4 is connected with a driving circuit of the lead screw motor 12; the gear link mechanism comprises a driving gear 15 and a driven gear 16, the driving gear 15 is fixedly connected with an output shaft of a gear motor through a coupler, the gear motor is fixedly connected inside the mounting cross beam 6, the driving gear is meshed with the driven gear 16, one side of the surface of the driven gear 16 is rotatably connected with one end of a first connecting rod 18, the other end of the first connecting rod 18 is rotatably connected with one end of a second connecting rod 19, the other end of the second connecting rod 19 is rotatably connected with the sliding sleeve 8, and the processor 4 is connected with a driving circuit of the gear motor; set up circulation forced air cooling mechanism and can guarantee that heat dissipation fan 9 can remove at the inside circulation of electricity distribution room to make heat dissipation fan 9 can dispel the heat everywhere to electricity distribution room inside, improved air-cooled radiating efficiency, can effectively avoid 1 inside air temperature of box too high to lead to equipment trouble or even the occurence of failure such as block terminal catches fire.

Wherein, the inside of the water tank chamber is fixedly connected with a water cooling tank 20 and a booster pump 21, one end of the snakelike water-cooled tube 2 extends into the water cooling tank 20, the water outlet of the booster pump 21 is connected with the other end of the snakelike water-cooled tube 2, and the water inlet of the booster pump 21 is connected with the water cooling tank 20 through a water guide pipe 22; the processor 4 is connected with a driving circuit of the booster pump 21; set up snakelike water-cooling tube 2 and be connected with water-cooling tank 20, accessible booster pump 21 liquid cooling pump in with water-cooling tank 20 is sent to snakelike water-cooling tube 2 in, and carry out circulative cooling to 1 inside of box through snakelike water-cooling tube 2, set up water-cooling mount 5 and the contact of snakelike water-cooling tube 2 simultaneously, and use 5 installation distribution equipment of water-cooling mount, accessible water-cooling mount 5 contacts and absorbs the heat that distribution equipment during operation sent with distribution equipment, thereby play the cooling effect.

Wherein, a plurality of thermovents 23 are evenly opened on the surface of the two side walls of the box body 1, and a baffle 17 is obliquely arranged at the upper end of the outer wall of the thermovent 23.

Principle of operation

When the distributed photovoltaic grid-connected special box is used, power distribution equipment is fixed inside a power distribution room of the box body 1 through the mounting cross beam 6; when the non-contact temperature sensor 3 detects that the temperature in the distribution chamber is too high, the processor 4 can drive the circulating air cooling mechanism and the booster pump 21 to dissipate heat in the box body 1 in an air cooling and water cooling mode; the temperature control device has the advantages that staff do not need to check the temperature at regular time, the use is convenient, the accident risk is reduced, and the temperature protection effect on the distribution box is realized;

when the booster pump 21 is started, the booster pump 21 pumps water cooling liquid in the water cooling tank 20 into the serpentine water cooling pipe 2 through the water guide pipe 22, the inside of the tank body 1 is circularly cooled through the serpentine water cooling pipe 2, meanwhile, the water cooling fixing frame 5 is arranged to be in contact with the serpentine water cooling pipe 2, the water cooling fixing frame 5 is used for installing power distribution equipment, and the water cooling fixing frame 5 can be in contact with the power distribution equipment and absorb heat generated when the power distribution equipment works, so that the effect of cooling and radiating is achieved;

when the circulating air cooling mechanism is started, a motor of the heat dissipation fan 9 is started, the heat dissipation fan 9 dissipates heat in the power distribution chamber, meanwhile, the lead screw motor 12 is started, an output shaft of the lead screw motor 12 drives one lead screw 10 to rotate, the lead screw 10 is electrically driven by the belt transmission mechanism 13, the other lead screw 10 synchronously rotates, and the two lead screws 10 drive the installation beam 6 to move in the power distribution chamber along the direction of the lead screw 10 through the nut seat 14; simultaneously gear motor starts, gear motor's output shaft drives driving gear 15 and rotates, and driving gear 15 drives driven gear 16, and driven gear 16 drives sliding sleeve 8 through connecting rod one 18 and connecting rod two 19 along 7 direction reciprocating motion of slide rail to drive heat dissipation fan 9 and dispel the heat everywhere to the distribution box inside, improved air-cooled radiating efficiency, can effectively avoid 1 inside air temperature of box too high to lead to equipment trouble or even the distribution box accident such as catching fire to take place.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The utility model provides a special case of distributing type photovoltaic grid-connected, includes box (1), its characterized in that, box (1) includes electricity distribution room and water tank room, one side inner wall fixed surface of electricity distribution room is connected with snakelike water-cooled tube (2), the both ends of snakelike water-cooled tube (2) all extend to in the water tank room, the inside of electricity distribution room still is equipped with circulation forced air cooling mechanism, mount fixedly connected with non-contact temperature sensor (3) are passed through on the inside top of electricity distribution room, non-contact temperature sensor (3) are connected with treater (4) through signal line, treater (4) fixed connection is in the inside upper end of electricity distribution room, a plurality of water-cooling mount (5) of fixedly connected with in the electricity distribution room, the back and the snakelike water-cooled tube (2) of water-cooling mount (5) laminate.

2. The distributed photovoltaic grid-connected dedicated box according to claim 1, wherein the circulating air cooling mechanism comprises a screw rod adjusting mechanism and a gear link adjusting mechanism, the screw rod adjusting mechanism is fixed on the inner walls of two sides of the distribution room, the screw rod adjusting mechanism is connected with an installation beam (6), the surface of the installation beam (6) is fixedly connected with the gear link adjusting mechanism and a slide rail (7), the slide rail (7) is slidably connected with a slide sleeve (8), the slide sleeve (8) is fixedly connected with a heat dissipation fan (9), the slide sleeve (8) is connected with the gear link mechanism, and the processor (4) is connected with a driving circuit of a motor of the heat dissipation fan (9).

3. The distributed photovoltaic grid-connected dedicated box according to claim 2, wherein the lead screw adjusting mechanism comprises two lead screws (10), the two lead screws (10) are respectively located on two inner walls of the distribution room, two ends of each lead screw (10) are rotatably connected with lead screw connecting seats (11), the lead screw connecting seats (11) are fixedly connected to the inner walls of the distribution room, one end of one lead screw (10) is fixedly connected with an output shaft of a lead screw motor (12) through a coupler, the lead screw motor (12) is fixedly connected to the lead screw connecting seats (11) through a motor transmission seat, a belt transmission mechanism (13) is connected between the two lead screws (10), one nut seat (14) is screwed on each lead screw (10), and the two nut seats (14) are respectively and fixedly connected to two ends of the mounting beam (6), the processor (4) is connected with a driving circuit of the screw rod motor (12).

4. The distributed photovoltaic grid-connected special box according to claim 2, wherein the gear linkage mechanism comprises a driving gear (15) and a driven gear (16), the driving gear (15) is fixedly connected with an output shaft of a gear motor through a coupler, the gear motor is fixedly connected inside the mounting beam (6), the driving gear (15) is meshed with the driven gear (16), one side of the surface of the driven gear (16) is rotatably connected with one end of a first connecting rod (18), the other end of the first connecting rod (18) is rotatably connected with one end of a second connecting rod (19), the other end of the second connecting rod (19) is rotatably connected to the sliding sleeve (8), and the processor (4) is connected with a driving circuit of the gear motor.

5. The distributed photovoltaic grid-connected special box according to claim 1, wherein a water cooling box (20) and a booster pump (21) are fixedly connected to the inside of the water box chamber, one end of the serpentine water-cooled tube (2) extends into the water cooling box (20), a water outlet of the booster pump (21) is connected with the other end of the serpentine water-cooled tube (2), and a water inlet of the booster pump (21) is connected with the water cooling box (20) through a water guide pipe (22); the processor (4) is connected with a driving circuit of the booster pump (21).

6. The distributed type special box for the grid-connected photovoltaic system according to claim 1, wherein a plurality of heat dissipation openings (23) are uniformly formed in the surfaces of the two side walls of the box body (1), and baffles (17) are obliquely arranged at the upper ends of the outer walls of the heat dissipation openings (23).