CN219611157U

CN219611157U - Photovoltaic grid-connected box

Info

Publication number: CN219611157U
Application number: CN202320159109.4U
Authority: CN
Inventors: 鲁晓东
Original assignee: Reiter Electric Co ltd
Current assignee: Reiter Electric Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-08-29
Anticipated expiration: 2033-02-08

Abstract

The utility model discloses a photovoltaic grid-connected box, which relates to the technical field of power distribution equipment and comprises the following components: the box body, the humidity transducer and the ventilation plugging mechanism are arranged on the side wall of the box body, the first ventilation opening is formed in the top of the box body, the second ventilation opening is formed in the top of the box body, the humidity transducer is arranged on the outer surface of the box body, the ventilation plugging mechanism comprises a plugging plate and a telescopic cylinder, the plugging plate is arranged in parallel with the end face of the first ventilation opening, the plugging plate is connected with the telescopic end of the telescopic cylinder, and the telescopic cylinder and the humidity transducer are electrically connected with the control system; according to the utility model, when the humidity sensor detects that the current environment humidity is high, the control system reacts, and the expansion and contraction of the telescopic cylinder are controlled, so that the plugging plate is controlled to move to completely plug the first ventilation opening, and at the moment, the first ventilation opening is plugged, so that the air exchange effect between the inside of the box body and the external environment is greatly reduced, the influence of the high humidity of the external environment on the device is reduced, and the service life of the device is prolonged.

Description

Photovoltaic grid-connected box

Technical Field

The utility model relates to the technical field of power distribution equipment, in particular to a photovoltaic grid-connected box.

Background

The photovoltaic grid-connected box is used as a general outlet of the photovoltaic power station and exists in the photovoltaic system and is a power distribution device for connecting the photovoltaic power station and a power grid, and the photovoltaic grid-connected box is mainly used as a demarcation point of the photovoltaic power generation system and the power grid, and can be arranged outdoors or indoors when being actually installed.

Because the internal component of box can produce the heat in the course of the work, in order to avoid thermal gathering to influence the normal use of device, conventional photovoltaic grid-connected box can set up the ventilation hole (there is the ventilation hole of opposite direction seting up, also there is ventilation hole etc.) on the different positions of box, a plurality of place ventilation holes cooperate and have realized that external cold air gets into the box, the hot air flows in the box, realize thermal giving off, and some can additionally set up the fan on photovoltaic grid-connected box and go up the radiating effect, for example the application number is "201821176692.5", the utility model patent of a photovoltaic grid-connected box "and the application number is" 202121223019.4", the name is" a radiating type photovoltaic grid-connected box "the utility model patent of family, through setting up the fan, the circulation effect of wind flow in the reinforcing photovoltaic grid-connected box, and then improve the radiating effect, but in the in-service use, not only the radiating effect can influence the normal use of device, environment humidity and vibration all can cause the influence to the life of device, no matter be the photovoltaic grid-connected box of conventional photovoltaic box, when setting up outdoor time, the humidity or the fan can also be greatly influenced by the humidity that the humidity of the device gets into the device in the weather, the long-term can be set up to the device when setting up, the humidity is also can be greatly reduced to the humidity in the outdoor device, the life is greatly influenced in the environment, the device is used in the place is greatly increased, the life is greatly is used to the device is used to the life of the device.

Therefore, a photovoltaic grid-connected box capable of reducing the influence of environmental humidity and vibration and prolonging the service life is needed.

Disclosure of Invention

The utility model aims to provide a photovoltaic grid-connected box, which solves the problems in the prior art, when a humidity sensor detects that the current environment humidity is high, a control system controls a telescopic cylinder to drive a plugging plate to completely plug a first ventilation opening, the effect of air exchange between a box body and the external environment is reduced, the influence of the high humidity of the external environment on a device is reduced, and the service life of the device is prolonged.

In order to achieve the above object, the present utility model provides the following solutions: the utility model provides a photovoltaic grid-connected box, which comprises a box body, a humidity sensor and a ventilation blocking mechanism, wherein a first ventilation opening is formed in the side wall of the box body, a second ventilation opening is formed in the top of the box body, the humidity sensor is arranged on the outer surface of the box body, the ventilation blocking mechanism comprises a blocking plate for blocking the first ventilation opening and a telescopic cylinder for driving the blocking plate to move so as to switch the blocking state of the blocking plate, the blocking plate is arranged in parallel with the end face of the first ventilation opening, the blocking plate is connected with the telescopic end of the telescopic cylinder, and the telescopic cylinder and the humidity sensor are electrically connected with a control system.

Preferably, the photovoltaic grid-connected box further comprises an air inlet machine used for being started when the first ventilation opening is blocked, the air inlet machine is electrically connected with the control system, an air outlet of the air inlet machine is communicated with the bottom of the inner cavity of the box body, an air inlet of the air inlet machine is communicated with an air inlet pipeline, and a dry filler used for absorbing moisture in air is arranged in the air inlet pipeline.

Preferably, a guide member for guiding the movement of the plugging plate is arranged on the side wall of the box body.

Preferably, the guide piece is a ventilation hood, the ventilation hood is arranged at the first ventilation opening, a through hole matched with the plugging plate is formed in the upper side wall of the ventilation hood, the telescopic cylinder is arranged above the through hole, one end of the plugging plate is connected with the telescopic end of the telescopic cylinder, the other end of the plugging plate is arranged in the through hole in a vertical sliding manner, the length of an inner cavity of the ventilation hood is not greater than that of the plugging plate in the sliding direction of the plugging plate, and a vent hole is formed in one end face, away from the first ventilation opening, of the ventilation hood.

Preferably, a waterproof rain cap covering the box body in the vertical direction is arranged above the box body, a strip-shaped air hole is formed in the position, which does not correspond to the box body, at the bottom end of the waterproof rain cap, and the second air vent is communicated with the inner cavity of the waterproof rain cap.

Preferably, the telescopic cylinder is arranged in the inner cavity of the waterproof rain cap, and the plugging plate is arranged in the box body.

Preferably, the first ventilation openings are arranged in a plurality from top to bottom, and the upper edges of the first ventilation openings are provided with water guide plates in a downward inclined mode in a direction away from the box body.

Preferably, the humidity sensor is disposed at the top of the side wall of the case and is located below the waterproof rain cap.

Preferably, the middle part of box is provided with and is used for with the inner chamber of box is cut apart into the horizontal division board of strapping table installation cavity and circuit chamber, be provided with a plurality of through-hole that is used for ventilating on the horizontal division board, first vent corresponds the circuit chamber sets up, be provided with on the horizontal division board and be used for dodging the hole of dodging of shutoff board.

Preferably, the box comprises a box body, a first box door and a second box door, wherein the first box door corresponds to the meter installation cavity, the second box door corresponds to the circuit cavity, one side of the first box door and one side of the second box door are hinged to the box body, the other side of the second box door is connected with the box body through a door lock structure, and a glass window is arranged on the first box door.

Compared with the prior art, the utility model has the following technical effects:

1. according to the utility model, the humidity sensor is arranged on the outer surface of the box body, the humidity of the external environment is measured in real time, and the humidity information is transmitted to the control system, when the humidity sensor detects that the current environment humidity is high, the control system reacts, the expansion and contraction of the telescopic cylinder are controlled, so that the plugging plate is controlled to move to completely plug the first ventilation opening, at the moment, the first ventilation opening is plugged, the air exchange effect between the interior of the box body and the external environment is greatly reduced, the influence of the high humidity of the external environment on the device is reduced, and the service life of the device is prolonged.

2. According to the utility model, the air inlet machine is arranged, so that the radiating effect of the box body can be enhanced in the process that the first ventilation opening is blocked, and the dry filler can absorb moisture in the external air, so that the cold air entering the box body is dry air, on the basis of improving the radiating effect, the influence of the high humidity of the external environment on the device is further reduced, the air inlet machine is started only when the humidity of the external environment is high, the air inlet machine is not started for a long time, the influence of vibration on elements in the box body is reduced, and the service life of the device is further prolonged.

3. According to the waterproof rain cap, the telescopic cylinder is arranged in the inner cavity of the waterproof rain cap, so that the occupation of the space in the box body can be reduced, and the space utilization rate is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the external structure of a photovoltaic grid-connected box of the present utility model;

FIG. 2 is a schematic view of the internal structure of the photovoltaic grid-connected box of the present utility model;

wherein, 1, the box body; 2. a humidity sensor; 3. a first vent; 4. a second vent; 5. a plugging plate; 6. a telescopic cylinder; 7. a wind inlet machine; 8. an air inlet pipeline; 9. a ventilation hood; 10. a vent hole; 11. waterproof rain caps; 12. a strip-shaped air hole; 13. a water guide plate; 14. a baffle; 15. a transverse dividing plate; 16. a case body; 17. a first door; 18. a second door; 19. a door lock structure; 20. and a glass window.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Referring to fig. 1-2, a photovoltaic grid-connected box is provided, which comprises a box body 1, a humidity sensor 2 and a ventilation plugging mechanism, wherein a first ventilation opening 3 is formed on the side wall of the box body 1, a second ventilation opening 4 is formed at the top, the first ventilation opening 3 and the second ventilation opening 4 can be rectangular or inverted trapezoid, and the like, under natural environment, the air in the box body 1 rises in temperature and moves upwards to flow out from the second ventilation opening 4, negative pressure is formed in the box body to suck the external cold air from the first ventilation opening 3 to form air circulation, so that the internal temperature of the box body 1 is dispersed, the first ventilation opening 3 is preferably arranged at the bottom of the side wall of the box body 1, the air circulation can be realized in the whole box body 1, the heat dissipation effect is improved, the humidity sensor 2 is arranged on the outer surface of the box body 1 and is used for detecting the humidity in the external air, the ventilation plugging mechanism comprises a plugging plate 5 and a telescopic cylinder 6, wherein the plugging plate 5 is used for plugging the first ventilation opening 3, the telescopic cylinder 6 drives the plugging plate 5 to move so as to switch the plugging state of the plugging plate 5, the plugging plate 5 is parallel to the end face of the first ventilation opening 3, the plugging effect under the plugging state is improved, the plugging plate 5 is connected with the telescopic end of the telescopic cylinder 6, the telescopic cylinder 6 drives the plugging plate 5 to move upwards along the first ventilation opening 3 or slide along the surface of the side wall, namely the telescopic end of the telescopic cylinder 6 is connected with the end face or the peripheral side wall of the plugging plate 5 far away from the first ventilation opening 3, the telescopic cylinder 6 and the humidity sensor 2 are electrically connected with a control system, the control system can be an external control system or a control system arranged in the box body 1, the humidity sensor 2 is arranged on the outer surface of the box body 1 in the device, the humidity of the external environment is measured in real time, and the humidity information is transmitted to the control system, when humidity transducer 2 detects that current ambient humidity is great, control system makes the reaction, stretches out and draws back through control flexible jar 6, and then control shutoff board 5 moves to shutoff first vent 3 completely, and first vent 3 is shutoff this moment, and greatly reduced box 1 inside and external environment's air exchange's effect (when only opening a vent, can't form one and advance one and go out, air exchange effect greatly reduced), and then the reduction device receives the influence of external environment high humidity, improves the life of device.

Because the component can be continuous the production heat in box 1, at the in-process that first vent 3 was plugged, can lead to inside temperature to rise probably, in order to avoid this problem, set up photovoltaic grid-connected box and still include air inlet machine 7, be used for starting when first vent 3 is plugged, air inlet machine 7 is connected with the control system electricity, air outlet of air inlet machine 7 is linked together with the inner chamber bottom of box 1, air inlet machine 7 can set up in box 1 outside or box 1 inside, and air inlet machine 7's air intake is linked together with air inlet pipe 8, be provided with the dry filler that is arranged in absorbing the moisture in the air inlet pipe 8, the specific setting mode is: be provided with two partition networks in the air inlet pipe 8, partition network's aperture is less than dry filler's particle diameter, pack dry filler between two partition networks, through setting up air inlet machine 7, can be at the in-process reinforcing box 1 of first vent 3 by the shutoff, dry filler can absorb the moisture in the external air moreover, make the cold air that enters into in the box 1 be dry air, on the basis of improving the radiating effect, further reduce the device and receive the influence of external environment high humidity, air inlet machine 7 only starts when external environment humidity is great moreover, will not start for a long time, reduce the influence of vibration to the components in the box 1, further improve the life of device.

In order to facilitate subsequent replacement of dry filler, an air inlet flange connected between the air inlet pipeline 8 and the air inlet machine 7 can be arranged, the air inlet pipeline 8 can be conveniently detached and replaced subsequently, a feed inlet is formed in the top of a part of the air inlet pipeline 8 corresponding to the dry filler, a discharge port is formed in the bottom of the part, an opening and closing valve is arranged between the feed inlet and the discharge port, discharging is realized by opening the discharge port, and filling of the dry filler is realized by closing the discharge port and opening the feed inlet.

Be provided with the guide on the lateral wall of box 1 for to the shutoff board 5 motion is led, improves the accuracy of shutoff board 5 motion, guarantees that shutoff board 5 can accomplish the shutoff to first vent 3, and the guide can be a plurality of guide bar encloses the guide way of establishing the formation, or is a cover body structure, forms a slot etc. between cover body structure and the box 1 lateral wall.

When the guide piece is selected as the cover body structure, the cover body structure selects the ventilation cover 9 with ventilation capability, the ventilation cover 9 covers and establishes in first vent 3 departments, in order to reduce occupation to the horizontal space, be provided with on the upper lateral wall of ventilation cover 9 with shutoff board 5 assorted opening, can select the position that is close to the lateral wall on the upper lateral wall of ventilation cover 9 to set up the opening, also can set up the upper end of whole ventilation cover 9 as the open structure, regard the open structure as the opening, opening one side is located same vertical face with the lateral wall, telescopic cylinder 6 sets up in the opening top, shutoff board 5 one end is connected with the flexible end of telescopic cylinder 6, the other end slides from top to bottom and sets up in the opening, along the shutoff board 5 slip direction on, the inner chamber length of ventilation cover 9 is not more than the length of shutoff board 5, can set up under the condition that the opening is close to the position of lateral wall on the upper lateral wall of ventilation cover 9 on the upper lateral wall of choice, when the roof opening of ventilation cover 9 is followed still to support board 5 bottom and is contacted with ventilation cover 9 inner chamber bottom surface, the top wall opening of ventilation cover 9 is interior wall edge, support the one end of ventilation cover 5 and keep away from the top wall 5, the ventilation effect of the ventilation cover 1 can be cancelled, when the shutoff board 3 is kept away from the first vent 1 to the inside the ventilation box, when the shutoff board 3 is kept away from the first vent 1, and the inside the ventilation box is kept away from the first vent 1.

When the telescopic cylinder 6 is put from above to control the movement of the plugging plate 5, the telescopic end of the telescopic cylinder 6 can be directly connected with the plugging plate 5 or can be connected with the plugging plate 5 through a flexible rope.

The bottom of the plugging plate 5 is provided with a rubber strip to prevent collision damage during bottoming.

A plurality of evenly distributed vent holes 10 can be arranged, and the size of the vent holes 10 is reduced, so that the side wall of the vent hood 9 forms a mesh-shaped structure similar to a filter screen, and the effect of filtering air is achieved.

The top of box 1 is provided with the waterproof rain cap 11 that covers box 1 on the vertical direction, prevents that the rainwater from directly falling into box 1 in, and the bottom of waterproof rain cap 11 does not correspond the position of box 1 and is provided with bar gas pocket 12, and second ventilation opening 4 is linked together with the inner chamber of waterproof rain cap 11, and the mode of intercommunication is: the whole top end opening of the box body 1 is provided with a second ventilation hole 10, and the waterproof rain cap 11 corresponds to the position opening of the top end of the box body 1, so that the second ventilation hole 4 is communicated with the inner cavity of the waterproof rain cap 11.

The telescopic cylinder 6 is arranged in the inner cavity of the waterproof rain cap 11, the plugging plate 5 is arranged inside the box body 1, on one hand, the telescopic cylinder 6 and the plugging plate 5 are arranged inside the device, the attractiveness of the whole device can be improved, the erosion of the telescopic cylinder 6 and the plugging plate 5 by the external environment is reduced as much as possible, and on the other hand, the telescopic cylinder 6 is arranged in the inner cavity of the waterproof rain cap 11, the occupation of the inner space of the box body 1 can be reduced, and the space utilization rate is improved.

The first vent 3 from the top down is provided with a plurality of, and the upper edge of first vent 3 is provided with water guide plate 13 towards keeping away from the direction downward sloping of box 1, prevents that the rainwater from directly getting into in the box 1 from first vent 3 departments, can set up baffle 14 in the both sides of water guide plate 13 moreover, and water guide plate 13, baffle 14 and the lateral wall of box 1 form the decurrent passageway of opening, can avoid the rainwater that both sides flow to enter into in the box 1, further improves the life of device.

The humidity sensor 2 is disposed at the top of the sidewall of the case 1 and below the waterproof rain cap 11, and the waterproof rain cap 11 is used to block rainwater from directly contacting the humidity sensor 2.

The middle part of box 1 is provided with the horizontal division board 15 that is used for cutting apart the inner chamber of box 1 into strapping table installation cavity and circuit chamber, realizes the subregion management, and the strapping table installation cavity is used for installing the strapping table, and the circuit intracavity is used for arranging the electric wire and installs components such as circuit breaker, protector and switch, is provided with a plurality of on the horizontal division board 15 and is used for ventilative through-hole, and the air current of being convenient for passes through, and first vent 3 corresponds the circuit chamber setting, is provided with on the horizontal division board 15 and is used for dodging the dodging hole of shutoff board 5.

The box 1 includes box 16, first chamber door 17 and second chamber door 18, and first chamber door 17 corresponds the strapping table installation cavity setting, and second chamber door 18 corresponds the circuit chamber setting, and one side and the box 16 of first chamber door 17 and second chamber door 18 are articulated, and the opposite side passes through door lock structure 19 to be connected with box 16, is provided with glass window 20 on the first chamber door 17, and the staff of being convenient for directly observe inside from the outside.

In the in-service use, humidity transducer 2 detects the air humidity in the external environment in real time to with humidity information transmission monitoring to control system, when air humidity is great, control system control telescopic cylinder 6 is flexible, telescopic cylinder 6 drives shutoff board 5 motion and realizes the shutoff to first vent 3, start air inlet machine 7 this moment, external air enters into box 1 after the drying of dry filler, and flow out from second vent 4, when air humidity is less, control system control telescopic cylinder 6 is flexible, telescopic cylinder 6 drives shutoff board 5 motion, cancel the shutoff to first vent 3, air inlet machine 7 is closed this moment.

The adaptation to the actual need is within the scope of the utility model.

It should be noted that it will be apparent to those skilled in the art that the present utility model is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.

Claims

1. The utility model provides a photovoltaic grid-connected box, its characterized in that, includes box, humidity transducer and ventilation shutoff mechanism, first vent has been seted up on the lateral wall of box, the second vent has been seted up at the top, humidity transducer sets up on the surface of box, ventilation shutoff mechanism is including being used for the shutoff board of first vent and drive the flexible jar of shutoff board motion in order to switch its shutoff state, the shutoff board with the terminal surface parallel arrangement of first vent, just the shutoff board with flexible jar's flexible end is connected, flexible jar with humidity transducer all is connected with the control system electricity.

2. The photovoltaic grid-connected box according to claim 1, further comprising an air inlet machine for starting when the first ventilation opening is plugged, wherein the air inlet machine is electrically connected with the control system, an air outlet of the air inlet machine is communicated with the bottom of the inner cavity of the box body, an air inlet of the air inlet machine is communicated with an air inlet pipeline, and a dry filler for absorbing moisture in air is arranged in the air inlet pipeline.

3. The photovoltaic grid-tie box according to claim 1, wherein a guide member for guiding the movement of the blocking plate is provided on a side wall of the box body.

4. The photovoltaic grid-connected box according to claim 3, wherein the guide piece is a ventilation hood, the ventilation hood is arranged at the first ventilation opening, a through opening matched with the plugging plate is formed in the upper side wall of the ventilation hood, the telescopic cylinder is arranged above the through opening, one end of the plugging plate is connected with the telescopic end of the telescopic cylinder, the other end of the plugging plate is arranged in the through opening in a vertical sliding manner, the length of an inner cavity of the ventilation hood is not greater than that of the plugging plate in the sliding direction of the plugging plate, and a vent hole is formed in an end face, away from the first ventilation opening, of the ventilation hood.

5. The photovoltaic grid-connected box according to claim 1, wherein a waterproof rain cap which covers the box body in the vertical direction is arranged above the box body, a strip-shaped air hole is formed in a position, which does not correspond to the box body, at the bottom end of the waterproof rain cap, and the second air vent is communicated with an inner cavity of the waterproof rain cap.

6. The photovoltaic grid-tie box according to claim 5, wherein the telescopic cylinder is disposed in an inner cavity of the waterproof rain cap, and the plugging plate is disposed inside the box.

7. The photovoltaic grid-connected box according to claim 6, wherein a plurality of first ventilation openings are arranged from top to bottom, and water guide plates are arranged on the upper edges of the first ventilation openings in a downward inclined mode in a direction away from the box body.

8. The photovoltaic grid-tie box of claim 5, wherein the humidity sensor is disposed on top of a side wall of the box and below the waterproof rain cap.

9. The photovoltaic grid-connected box according to claim 1, wherein a transverse partition plate for dividing an inner cavity of the box into a meter installation cavity and a circuit cavity is arranged in the middle of the box, a plurality of ventilation openings for ventilation are formed in the transverse partition plate, the first ventilation openings are arranged corresponding to the circuit cavity, and avoidance holes for avoiding the plugging plates are formed in the transverse partition plate.

10. The photovoltaic grid-connected box according to claim 9, wherein the box body comprises a box body, a first box door and a second box door, the first box door is arranged corresponding to the meter installation cavity, the second box door is arranged corresponding to the circuit cavity, one side of the first box door and one side of the second box door are hinged to the box body, the other side of the first box door and the other side of the second box door are connected with the box body through a door lock structure, and a glass window is arranged on the first box door.