CN220291468U

CN220291468U - Distributed photovoltaic power generation grid-connected box

Info

Publication number: CN220291468U
Application number: CN202321237128.0U
Authority: CN
Inventors: 苏晓翔; 张志宏; 魏严
Original assignee: Fujian Southwest Fujian Urban Cooperative Development Group Smart City Development Co ltd
Current assignee: Fujian Southwest Fujian Urban Cooperative Development Group Smart City Development Co ltd
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2024-01-02
Anticipated expiration: 2033-05-22

Abstract

The utility model discloses a distributed photovoltaic power generation grid-connected box, which belongs to the technical field of distributed photovoltaic power generation grid-connected boxes, and comprises the following components: the box assembly, the box assembly includes box and cooling mechanism, cooling mechanism is including setting up the heat-conducting plate of box bottom, setting up refrigeration piece on the heat-conducting plate lateral wall and seting up the heat-conducting plate bottom runs through the heat transfer hole that box inner chamber bottom and with the box inner chamber is link up mutually, keep away from on the heat-conducting plate box one side installs the fan, the inner chamber in heat transfer hole is provided with the filter screen, and this kind of distributed photovoltaic power generation grid-connected box draws the outside air into the heat transfer hole through the fan, cools down the heat-conducting plate through the refrigeration piece, and the air that enters into the heat transfer hole carries out heat transfer with the cooling plate and reduces the temperature of air, and the inside that the air that passes through the cooling enters into the box cools down with the inside air of box has ensured the life of equipment.

Description

Distributed photovoltaic power generation grid-connected box

Technical Field

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

Background

The distributed photovoltaic power generation refers to a distributed power generation system which adopts photovoltaic modules to directly convert solar energy into electric energy, the capacity of such individual or household distributed photovoltaic power generation is generally within thousands of watts, no noise exists in the power generation process, pollution to air and water can not be generated, the environmental benefit is outstanding, a considerable part of generated electricity is consumed by users themselves, the distributed photovoltaic power generation system has a series of advantages of being close to the users, low in power transmission cost, small in influence on a power grid, flexible in site selection, wide in application range and the like, is one of photovoltaic power generation modes which are mainly popularized at present, and the distributed photovoltaic power generation grid-connected box is needed to be used in the distributed power generation system to collect currents generated by each photovoltaic module together so as to enable the collected currents to be connected into the power grid.

The existing distributed photovoltaic power generation grid-connected box is generally hung outdoors, and as the electronic components in the distributed photovoltaic power generation grid-connected box generate larger heat in a working room, if the heat cannot be timely dissipated, the performance of the electronic components can be affected, and when the existing distributed photovoltaic power generation grid-connected box is used, the heat dissipation holes and the heat dissipation fans are generally formed in the shell to dissipate the heat of the photovoltaic inverter, however, as the distributed photovoltaic power generation grid-connected box is installed outdoors, when the temperature of the external environment is higher, the heat dissipation of the photovoltaic inverter can be affected, so that the photovoltaic inverter cannot timely and effectively dissipate the heat, and the service life of the photovoltaic inverter is affected.

Disclosure of Invention

The utility model aims to provide a distributed photovoltaic power generation grid-connected box, which solves the problem that the service life of a photovoltaic inverter is influenced because the distributed photovoltaic power generation grid-connected box is arranged outdoors and the photovoltaic inverter cannot effectively dissipate heat in time when the temperature of the external environment is high.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a distributed photovoltaic power generation grid tie box comprising:

the box assembly comprises a box body and a cooling mechanism, wherein the cooling mechanism comprises a heat conducting plate arranged at the bottom of the box body, a refrigerating sheet arranged on the outer side wall of the heat conducting plate and a heat exchanging hole arranged at the bottom of the heat conducting plate and penetrating through the bottom of an inner cavity of the box body and communicated with the inner cavity of the box body, a fan is arranged on one side, away from the box body, of the heat conducting plate, and a filter screen is arranged in the inner cavity of the heat exchanging hole.

Preferably, the box assembly further comprises mounting blocks arranged at four corners of the back of the box.

Preferably, the bottom of the inner cavity of the box body is provided with a caulking groove.

Preferably, the door assembly comprises a door arranged at the front opening of the box body and a door lock arranged on the door, far away from one side of the box body and connected with the box body.

Preferably, a sealing block is arranged on one side of the box door, which faces the box body, and the sealing block is inserted into the inner cavity of the box body and contacts with the side wall of the inner cavity of the box body.

Preferably, an antenna is mounted at the top corner of the box.

Preferably, the dehumidification mechanism comprises a dehumidification bottom box assembly arranged in the inner cavity of the caulking groove and a dehumidification cover plate assembly arranged at the opening of the end part of the dehumidification bottom box assembly.

Preferably, the dehumidifying bottom box assembly comprises a bottom box and an air inlet hole which is arranged at the bottom of the inner cavity of the bottom box and penetrates through the bottom of the bottom box.

Preferably, the dehumidifying cover plate assembly comprises a cover plate arranged at the opening of the end part of the bottom box and an exhaust hole formed in the top of the cover plate and penetrating through the bottom of the cover plate.

Compared with the prior art, the utility model has the beneficial effects that: this kind of distributed photovoltaic power generation grid-connected box, in extracting the heat transfer downthehole with outside air through the fan, cool down the heat conduction board through the refrigeration piece, enter into the downthehole air of heat transfer and the temperature that the cooling board carries out heat transfer and reduce the air, the inside that enters into the box through the air of cooling and the inside air of box cool down, have ensured the life of equipment.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a housing assembly according to the present utility model;

FIG. 3 is a schematic view of the present utility model box and caulking groove arrangement;

FIG. 4 is a schematic view of the door assembly of the present utility model;

FIG. 5 is a schematic view of the door and seal block installation of the present utility model;

FIG. 6 is a schematic view of the mounting of the cabinet and dehumidification mechanism of the present utility model;

FIG. 7 is a schematic view of a dehumidifying mechanism according to the present utility model.

In the figure: 100 box assembly, 110 box, 111 caulking groove, 112 antenna, 120 cooling mechanism, 121 heat-conducting plate, 122 refrigeration piece, 123 heat exchange hole, 130 installation piece, 200 chamber door assembly, 210 chamber door, 211 sealing piece, 220 lock, 300 dehumidification mechanism, 310 dehumidification base box assembly, 311 base box, 312 inlet port, 320 dehumidification apron assembly, 321 apron, 322 exhaust hole.

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.

The utility model provides a distributed photovoltaic power generation grid-connected box, which is characterized in that external air is extracted into a heat exchange hole through a fan, a heat conduction plate is cooled through a refrigerating sheet, the air entering the heat exchange hole exchanges heat with a cooling plate to reduce the temperature of the air, the cooled air enters the box body and the air inside the box body to cool, the service life of equipment is ensured, and referring to fig. 1, the distributed photovoltaic power generation grid-connected box comprises: a box assembly 100, a box door assembly 200 and a dehumidifying mechanism 300;

referring to fig. 1-2, the box assembly 100 includes a box 110 and a cooling mechanism 120, the cooling mechanism 120 includes a heat conducting plate 121 disposed at the bottom of the box 110, a cooling plate 122 disposed on the outer side wall of the heat conducting plate 121, and a heat exchanging hole 123 disposed at the bottom of the heat conducting plate 121 and penetrating the bottom of the inner cavity of the box 110 and communicating with the inner cavity of the box 110, a fan is mounted on the side of the heat conducting plate 121 far away from the box 110, a filter screen is disposed in the inner cavity of the heat exchanging hole 123, the heat conducting plate 121 is made of copper or aluminum, the heat conducting plate 121 is welded at the bottom of the box 110, the cooling plate 122 is inlaid on the side wall of the heat conducting plate 121, the cold end of the cooling plate 122 contacts with the side wall of the heat conducting plate 121, the hot end of the cooling plate 122 is disposed outside the heat conducting plate 121 and does not contact with the heat conducting plate 121, the hot end of the cooling plate 122 exchanges heat with external air, the fan is detachably mounted at the bottom of the heat conducting plate 121 through bolts, external air is pumped into the inner cavity of the heat exchange hole 123 through the fan, the heat conducting plate 121 is refrigerated through the refrigerating sheet 122, the air entering the inner cavity of the heat exchange hole 123 exchanges heat with the heat conducting plate 121 to reduce the temperature of the air, the cooled air enters the inner cavity of the box body 110 through the heat exchange hole 123 to cool the inner cavity of the box body 110, the service life of the equipment is ensured, in order to avoid dust impurities in the air entering the inner cavity of the box body 110, a filter screen is arranged in the inner cavity of the heat exchange hole 123, the impurities in the air are filtered through the filter screen, meanwhile, in order to enable the air to exchange heat uniformly, the material of the filter screen can be replaced into a copper mesh or an aluminum mesh, the copper mesh or the aluminum mesh contacts with the heat conducting plate 121 to exchange heat with the heat conducting plate 121, the air entering the inner cavity of the heat exchange hole 123 contacts with the filter screen, the air can be subjected to heat exchange with the filter screen while dust impurities are filtered, so that the air can be subjected to heat exchange uniformly, the inner cavity of the box body 110 can be further cooled, and the purpose of guaranteeing the service life of the pen is achieved;

referring to fig. 1-2, the case assembly 100 further includes mounting blocks 130 disposed at four corners of the back surface of the case 110, the mounting blocks 130 are welded to the case 110, the mounting blocks 130 are in contact with a building or a mounting bracket, the mounting blocks 130 are fixed to the building or the mounting bracket by bolts, and the case 110 is fixed to the building or the mounting bracket by the mounting blocks 130;

referring to fig. 1-2 and 4-6, the door assembly 200 includes a door 210 disposed at an opening of a front surface of the case 110, and a door lock 220 disposed on the door 210 at a side far from the case 110 and connected with the case 110, a sealing block 211 disposed on the door 210 at a side facing the case 110, the sealing block 211 being inserted into an inner cavity of the case 110 and contacting with a sidewall of the inner cavity of the case 110, an antenna 112 being mounted at a top corner of the case 110, the door 210 being mounted at the opening of the front surface of the case 110 by a hinge, the sealing block 211 being inserted into the inner cavity of the case 110 contacting with the sidewall of the inner cavity of the case 110, sealing treatment being performed between the sealing block 211 and the case 110, thereby effectively preventing dust impurities in air from entering into the inner cavity of the case 110 to damage electronic components mounted in the inner cavity of the case 110, further guaranteeing a service life of the apparatus, in order to avoid fire hidden trouble caused by short circuit, the utility model also installs camera and ultrasonic probe on one side of the box door 210 facing the box 110, collect the ultrasonic signal in the work of the electronic component through the ultrasonic probe, shoot the record to the electric arc produced by the electronic component when the trouble through the camera, in order to inform the staff in time at the same time, the utility model also has a communicator on one side of the box door 210 facing the box 110, the communicator is electrically connected with aerial 112, the data collected by camera and ultrasonic probe is sent to the communication equipment of the staff through communicator and aerial 112, can maintain and repair the apparatus in time when the apparatus breaks down, can avoid the fire disaster caused by short circuit of the electronic component in the apparatus effectively, has guaranteed the fire safety;

referring to fig. 1 to 3 and 6 to 7, the inner cavity bottom of the case 110 is provided with a caulking groove 111, the dehumidifying bottom case assembly 310 comprises a bottom case 311 and an air inlet 312 arranged at the bottom of the inner cavity of the bottom case 311 and penetrating the bottom of the bottom case 311, the dehumidifying cover plate assembly 320 comprises a cover plate 321 arranged at the opening of the end of the bottom case 311 and an air outlet 322 arranged at the top of the cover plate 321 and penetrating the bottom of the cover plate 321, the bottom case 311 is detachably mounted at the inner side of the caulking groove 111 through bolts, the air inlet 312 is communicated with the inner cavity of the heat exchange hole 123, the inner cavity of the bottom case 311 is filled with a drying agent, the cover plate 321 is detachably mounted at the top of the bottom case 311 through bolts, the drying agent is fixed at the inner cavity of the bottom case 311 through the cover plate 321, the cooled air enters the inner cavity of the bottom case 311 through the air inlet 312, the drying agent filled in the inner cavity of the bottom case 311 absorbs and dehumidifies the moisture in the air, the dehumidified air enters the inner cavity of the box body 110 through the air exhaust holes 322, so that the phenomenon that the humidity of the inner cavity of the box body 110 is too high caused by the fact that moisture in the external air enters the inner cavity of the box body 110 can be effectively prevented, in order to avoid the phenomenon that the humidity of the inner cavity of the box body 110 is too high caused by the failure of a drying agent, the humidity sensor is arranged on one side, facing the box body 110, of the box door 210 and is electrically connected with communication equipment, the humidity data are uploaded to the communication equipment of staff in real time through the communication equipment, the humidity of the inner cavity of the box body 110 can be necessarily increased when the failure of the drying agent is caused, the staff can even replace the drying agent after knowing that the humidity of the inner cavity of the box body 110 is increased through the communication equipment, so that the phenomenon that the humidity of the inner cavity of the box body 110 is too high caused by the failure of the drying agent can be effectively avoided, further guaranteeing the service life of equipment.

Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner so long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of brevity and resource saving. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. A distributed photovoltaic power generation grid-connected box is characterized in that: comprising the following steps:

the box assembly (100), box assembly (100) include box (110) and cooling mechanism (120), cooling mechanism (120) are in including setting up heat conduction board (121) of box (110) bottom, set up refrigeration piece (122) on heat conduction board (121) lateral wall and set up heat exchange hole (123) that heat conduction board (121) bottom and run through box (110) inner chamber bottom and with box (110) inner chamber link up mutually, keep away from on heat conduction board (121) fan is installed to box (110) one side, the inner chamber of heat exchange hole (123) is provided with the filter screen.

2. A distributed photovoltaic power generation grid tie box according to claim 1, characterized in that: the box assembly (100) further comprises mounting blocks (130) arranged at four corners of the back surface of the box (110).

3. A distributed photovoltaic power generation grid tie box according to claim 2, characterized in that: the bottom of the inner cavity of the box body (110) is provided with a caulking groove (111).

4. A distributed photovoltaic power generation grid tie box according to claim 3, characterized in that: the novel door assembly comprises a box body (110), and further comprises a box door assembly (200), wherein the box door assembly (200) comprises a box door (210) arranged at the front opening of the box body (110) and a door lock (220) arranged on the box door (210) and far away from one side of the box body (110) and connected with the box body (110).

5. The distributed photovoltaic power generation grid-tie box of claim 4, wherein: the sealing block (211) is arranged on one side of the box door (210) facing the box body (110), and the sealing block (211) is inserted into the inner cavity of the box body (110) and is contacted with the side wall of the inner cavity of the box body (110).

6. The distributed photovoltaic power generation grid-tie box of claim 5, wherein: an antenna (112) is mounted at a top corner of the box (110).

7. The distributed photovoltaic power generation grid-tie box of claim 6, wherein: the dehumidification device further comprises a dehumidification mechanism (300), wherein the dehumidification mechanism (300) comprises a dehumidification bottom box assembly (310) arranged in the inner cavity of the caulking groove (111) and a dehumidification cover plate assembly (320) arranged at the opening of the end part of the dehumidification bottom box assembly (310).

8. The distributed photovoltaic power generation grid-tie box of claim 7, wherein: the dehumidifying bottom box assembly (310) comprises a bottom box (311) and an air inlet hole (312) which is arranged at the bottom of the inner cavity of the bottom box (311) and penetrates through the bottom of the bottom box (311).

9. The distributed photovoltaic power generation grid-tie box of claim 8, wherein: the dehumidifying cover plate assembly (320) comprises a cover plate (321) arranged at the opening of the end part of the bottom box (311) and an exhaust hole (322) which is formed in the top of the cover plate (321) and penetrates through the bottom of the cover plate (321).