CN116316122A

CN116316122A - Lifting type photovoltaic access box

Info

Publication number: CN116316122A
Application number: CN202310209807.5A
Authority: CN
Inventors: 李昊鹏; 刘明明; 王丹阳; 武卓睿; 张毅; 万铭; 杨磊
Original assignee: Qingdao Power Supply Co of State Grid Shandong Electric Power Co Ltd
Current assignee: Qingdao Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-06-23

Abstract

The invention discloses a lifting type photovoltaic access box, which comprises a photovoltaic access box body, a shell, a lifting part and a moisture-proof part, wherein two air inlet grooves which are arranged side by side are formed in the top of the shell, a filter screen is arranged in each air inlet groove, the lifting part comprises a support plate, two support frames, a positive and negative threaded rod and two sleeve plates, the tops of the two sleeve plates are respectively welded and fixed with the bottoms of the support frames at the top ends of the same side of the support frames, the moisture-proof part comprises the moisture-proof box and a moisture-absorbing plate, the bottoms of the shell are respectively fixed with the horizontal ends of the two support frames through the support frames, the positive and negative threaded rod, the sleeve plates and a driving motor drive the positive and negative threaded rod to rotate, and drive the two sleeve plates to move in the same direction or in the opposite direction on the positive and negative threaded rod, so that the shell can realize lifting through the two support frames, the use height of the shell is convenient to adjust, and rain water is prevented from entering the inside the shell.

Description

Lifting type photovoltaic access box

Technical Field

The invention belongs to the technical field of photovoltaic access boxes, and particularly relates to a lifting type photovoltaic access box.

Background

The photovoltaic grid-connected access box is also called a solar photovoltaic combiner box, a photovoltaic array lightning protection combiner, a photovoltaic power distribution cabinet and the like, is used between an alternating current output side of an inverter of a distributed power generation system and a grid-connected point and a load, has lightning protection and switch protection, has an electric energy measurement function, and is used for metering, controlling and managing three-phase electric energy.

Patent CN202021645339.4 discloses a photovoltaic power generation and electricity net surfing 0.4KV photovoltaic grid-connected access box device, which comprises a box body and a waterproof board, wherein the waterproof board is arranged at the top of the box body, the top of the waterproof board is arranged in an arc shape, upward vertical boards are arranged around the edge of the top of the waterproof board, drain holes are formed in the vertical boards on the left side and the right side, and drain pipes are communicated with the drain holes. The device is provided with the waterproof board at the top of box, when suffering thunderstorm strong wind weather, the rainwater of drip on the waterproof board can be diffused to the both sides of waterproof board rapidly, has avoided these rainwater infiltration to the box in, but the device is pressed close to ground installation, runs into the great weather of rainwater, and the ground water course blocks up, and when the water level risees for in the rainwater infiltration to the box easily, cause the damage to electrical components in the box. Patent CN201821255887.9 discloses a photovoltaic conflux case, it includes box and radiating portion, and the inside of box has a cavity, and radiating portion sets up in the cavity, and the cavity is equipped with air intake and air outlet, and photovoltaic conflux case still includes the guide duct, and the guide duct sets up in the cavity and extends to the air outlet from the air intake, and air intake, guide duct and air intake form cooling air flow passageway, and radiating portion includes the fin, and the fin sets up along cooling air flow passageway's air current flow direction. This photovoltaic conflux case is through setting up the guide duct from the air intake intercommunication to the air intake in the cavity inside of its box to stabilize the velocity of flow of cooling air flow and cool down, in the heat dissipation process, because outside air humidity is big, the air moisture is along with entering to the box inside from the air intake, and impurity is many in the outside air, gets into influence circuit work efficiency in the box, and moisture causes electrical components short circuit, corruption and damage easily, because of this, we propose a lifting type photovoltaic access case.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.

Disclosure of Invention

The invention aims to provide a lifting type photovoltaic access box, which is used for solving the problems in the prior art.

In order to achieve the above purpose, the invention provides a lifting type photovoltaic access box, which comprises a photovoltaic access box body, wherein the photovoltaic access box body comprises a shell, a lifting part arranged at the bottom end of the shell and a moisture-proof part arranged at the center of the top wall in a cavity of the shell, wherein the top of the shell is provided with two air inlet grooves which are arranged side by side, a first motor is fixedly connected to the top wall of the shell and positioned between the two air inlet grooves, a filter screen is arranged in the air inlet grooves, the lifting part comprises a supporting plate and two supporting frames which are symmetrically arranged at the top end of the supporting plate, the top walls of the horizontal ends of the two supporting frames are respectively fixed with the bottom wall of the shell through bolts, a concave cavity is formed in the top wall of the supporting plate, a positive and negative threaded rod which is longitudinally arranged is arranged in the concave cavity, two sleeve plates are in threaded connection with the two sides of the rod body of the positive and negative threaded rod, the top of the two sleeve plates are respectively welded and fixed with the bottoms of the supporting frames at the top of the same side of the top end, the two moisture-proof boxes which are in a vertical through structure are fixed on the top wall of the top of the shell, and the two moisture-proof boxes are respectively communicated with the top ends of the moisture-proof boxes.

In the technical scheme of the invention, an air outlet groove is formed in the center of the left side wall of the shell, a heat dissipation box is fixedly connected to the outer end cover of the air outlet groove, the heat dissipation box is mutually communicated with the inner wall of the shell, a plurality of heat dissipation holes are formed in the center of the outer wall of the heat dissipation box, and a shielding shed is further arranged at the top end of the shell.

In the technical scheme of the invention, the output end of the first motor penetrates through the top wall of the shell and then stretches into the moistureproof box, and the output shaft of the first motor is rotationally connected with the first fan blade.

In the technical scheme of the invention, the outer wall of the right side of the shell is fixedly connected with a second motor, the tail end of an output shaft of the second motor is coaxially connected with a second fan blade, and the second fan blade body is opposite to the air outlet groove.

In the technical scheme of the invention, four edges of the filter screen are clamped with filter screen frames, two scraping hook plates which are arranged in bilateral symmetry are respectively arranged on the front top wall and the rear top wall of the filter screen frames, transverse columns are respectively arranged at the edges of the front notch and the rear notch of the air inlet groove, and the bottom ends of the scraping hook plates are lapped on the transverse column body.

In the technical scheme of the invention, the bottom ends of the two sleeve plates slide in the concave cavity in the same direction or in opposite directions, the bottom of the inclined end of the support frame is provided with a fixed plate, a convex shaft is fixedly connected between the front inner wall and the rear inner wall of the fixed plate, the tail end of the inclined end of the support frame is hinged and matched with the convex shaft, and the middle of the bottom of the horizontal end of the support frame is hinged with the head end of the inclined end of the support frame.

In the technical scheme of the invention, the head end of the positive and negative threaded rod is coaxially fixed with a driving motor, the driving motor is fixedly arranged on the left outer wall of the supporting plate, and four corners of the bottom of the supporting plate are respectively provided with a supporting foot.

In the technical scheme of the invention, rectangular open slots are respectively formed in the lower ends of the front wall and the rear wall of the moisture-proof box, mounting frames are clamped at the four side outer walls of the moisture-absorbing plate, handles are fixedly connected at the center of the top wall of the front end of each mounting frame, and the mounting frame bodies are sequentially inserted into the two open slots from front to back.

In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:

1. according to the invention, the bottom of the shell is respectively fixed with the horizontal ends of the two supporting frames through the supporting frames, the front and back threaded rods, the sleeve plates and the driving motor which are arranged on the lifting part, the front and back threaded rods are driven to rotate through the driving motor, and the two sleeve plates are driven to move on the front and back threaded rods in the same direction or in opposite directions, so that the shell can lift through the two supporting frames, the use height of the shell can be conveniently adjusted, and rainwater is prevented from entering the shell.

2. In the heat dissipation process, through the moisture-proof part arranged on the inner top wall of the shell, after the external air enters the air inlet groove, moisture in the air is absorbed through the moisture-absorbing plate arranged at the bottom end of the moisture-proof part, so that the damage of air moisture to electric elements in the shell is avoided, and the protection effect is achieved.

3. According to the invention, dust or flock in air can be filtered through the filter screen, the filter screen frame and the scraping plate which are arranged in the air inlet groove, and the filter screen frame is conveniently arranged in the air inlet groove through the scraping plate, so that the filter screen can be conveniently taken out for cleaning.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

fig. 2 is a lifting structure diagram of a photovoltaic access box body in the invention;

FIG. 3 is a diagram illustrating a first motor and a first fan blade according to the present invention;

FIG. 4 is a partial top view of the housing of the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 4 at A in accordance with the present invention;

FIG. 6 is a schematic diagram of the overall structure of the present invention;

FIG. 7 is a block diagram of a shelter according to the present invention;

FIG. 8 is a diagram showing a structure of a lifting part in the present invention;

FIG. 9 is a second elevation part construction diagram of the present invention;

FIG. 10 is an enlarged view of the structure of FIG. 9 at B in accordance with the present invention;

FIG. 11 is a block diagram of a support frame according to the present invention;

fig. 12 is a view showing a structure of a moisture proof portion in the present invention.

Reference numerals illustrate:

1. a photovoltaic access box body; 10. a housing; 101. an air inlet groove; 1010. a cross column; 102. an air outlet groove; 11. a first motor; 110. a first fan blade; 12. a filter screen; 120. a filter screen frame; 121. a scraper plate; 13. a second motor; 130. a second fan blade; 14. a heat radiation box; 140. a heat radiation hole; 15. shielding shed; 150. a clamping plate; 16. a wire inlet hole; 17. a wire outlet hole;

2. a lifting part; 20. a support plate; 201. a cavity; 21. a support frame; 210. a bolt; 211. a protruding shaft; 212. a fixing plate; 22. a positive and negative threaded rod; 220. a driving motor; 23. a sleeve plate; 230. a retaining plate; 24. a support leg;

3. a moisture-proof part; 30. a moisture proof box; 301. an open slot; 31. a moisture absorption plate; 310. a mounting frame; 311. a handle.

Detailed Description

The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or other components.

Referring to fig. 1-12, the lifting type photovoltaic access box of the invention comprises a photovoltaic access box body 1, the photovoltaic access box body 1 comprises a shell 10, a wire inlet hole 16 and a wire outlet hole 17 which are arranged at the left wall and the right wall of the shell 10, and is used for installing a circuit, a lifting part 2 at the bottom end of the shell 10, a moisture-proof part 3 which is arranged at the center of the top wall in a cavity of the shell 10, two air inlet grooves 101 which are arranged side by side are arranged at the top of the shell 10, the outside air enters the shell 10 through the arranged air inlet grooves 101, a filter screen 12 is arranged in the air inlet grooves 101, dust, flock and other impurities in the air are conveniently filtered, the working efficiency of internal electric elements is influenced, the normal work is not caused, the lifting part 2 comprises a support plate 20 and two support frames 21 which are symmetrically arranged at the top end of the support plate 20, the top walls of the horizontal ends of the two support frames 21 are respectively fixed with the bottom wall of the shell 10 through bolts 210, after the shell 10 is supported by the two supporting frames 21, a concave cavity 201 is formed in the top wall of the supporting plate 20, a forward and reverse threaded rod 22 which is longitudinally arranged is arranged in the concave cavity 201, two ends of the forward and reverse threaded rod 22 are respectively connected with the left side and the right side of the supporting plate 20 in a rotating way, two sleeve plates 23 are connected with two sides of a rod body of the forward and reverse threaded rod 22 in a threaded way, the forward and reverse threaded rod 22 drives the two sleeve plates 23 to move in the same direction or in the opposite direction, then the tops of the two sleeve plates 23 are respectively welded and fixed with the bottoms of the supporting frames 21 at the top ends of the same side of the two sleeve plates, so that the sleeve plates 23 drive the supporting frames 21 to move left and right to drive the shell 10 to lift up and down, the shell 10 is prevented from being wet by contacting the ground, the internal circuit of the shell 10 is damaged, the moistureproof part 3 comprises a moistureproof box 30 which is fixed on the top inner wall of the shell 10 and is in a vertically through structure, the two air inlet grooves 101 are respectively communicated with the top ends of the moistureproof box 30, the bottom of the moisture proof box 30 is provided with the moisture absorbing plate 31, and moisture in the air from the air inlet groove 101 can be absorbed through the arranged moisture absorbing plate 31, so that electrical components are prevented from being short-circuited or corroded due to high air humidity.

In the invention, an air outlet groove 102 is formed in the center of the left side wall of a shell 10, a heat dissipation box 14 is fixedly connected to the outer end cover of the air outlet groove 102 and used for shielding the air outlet groove 102, rainwater is prevented from entering from the air outlet groove 102, the heat dissipation box 14 is mutually communicated with the inner wall of the shell 10, a plurality of heat dissipation holes 140 are formed in the center of the outer wall of the heat dissipation box 14, a shielding shed 15 is fixed at four corners of the top of the shell 10 through clamping plates 150, the left end and the right end of the shielding shed 15 are prolonged to the outside, the left side and the right side of the shell 10 are shielded, the rainwater is prevented from entering the shell 10, hot air in the shell 10 enters the heat dissipation box 14 through the arranged heat dissipation box 14, and the hot air is discharged through the plurality of heat dissipation holes 140.

Specifically, a first motor 11 is fixedly connected to the top wall of the housing 10 between two air inlet grooves 101, the output end of the first motor 11 penetrates through the top wall of the housing 10 and then stretches into the moisture-proof box 30, the output shaft of the first motor 11 is rotationally connected with a first fan blade 110, the first fan blade 110 is driven to rotate by the first motor 11, outside air is sucked into the housing 10, heat in the housing 10 is reduced, the outer wall of the right side of the housing 10 is fixedly connected with a second motor 13, the tail end of the output shaft of the second motor 13 is coaxially connected with a second fan blade 130, the second fan blade 130 is driven to rotate by the second motor 13, the fan body of the second fan blade 130 is opposite to the air outlet groove 102, and hot air in the housing 10 is discharged from the air outlet groove 102.

Further, four edges joint of filter screen 12 has filter screen frame 120, is equipped with two respectively on the roof around filter screen frame 120 and is the scraping plate 121 that bilateral symmetry set up, and notch edge is equipped with diaphragm 1010 respectively around the air inlet 101, and the bottom overlap joint of scraping plate 121 is on the diaphragm 1010 body of rod, is convenient for take out filter screen frame 120 from air inlet 101 through the scraping plate 121 that sets up, conveniently washs impurity such as dust or batting on the filter screen 12.

In the invention, the bottom of the inclined end of the supporting frame 21 is provided with a fixed plate 212, a convex shaft 211 is fixedly connected between the front inner wall and the rear inner wall of the fixed plate 212, the tail end of the inclined end of the supporting frame 21 is hinged with the convex shaft 211, the middle of the bottom of the horizontal end of the supporting frame 21 is hinged with the head end of the inclined end of the supporting frame 21, so that the bottom ends of two sleeve plates 23 slide in the concave cavity 201 in the same direction to drive the shell 10 to rise, the bottom ends of the two sleeve plates 23 slide in the concave cavity 201 in the opposite direction to drive the shell 10 to descend, when the two sleeve plates 23 slide towards the left end and the right end of the concave cavity 201 continuously, the sleeve plates 23 are prevented from colliding with the left cavity wall and the right cavity wall of the concave cavity 201 through the arranged retaining plates 230 and the left cavity wall and the right cavity wall of the concave cavity 201.

Notably, be equipped with waterproof, rust-resistant coating on the positive and negative threaded rod 22, play waterproof rust-resistant effect, the head end coaxial fixed with driving motor 220 of positive and negative threaded rod 22, driving motor 220 adopts waterproof motor, waterproof motor inside blocks the external world through sealing mechanism, reliable waterproof effect has, even long-time water spraying, also can not take place motor inside and intake, driving motor 220 installs and fixes on the left side outer wall of backup pad 20, four corner punishment threaded connection stabilizer blade 24 in bottom of backup pad 20, stabilizer blade 24 plays the support to lifting part 2 is whole, through adjusting the height of every stabilizer blade 24 with ground, guarantee lifting part 2's balance.

It should be noted that, in the present invention, the components of the first motor 11, the second motor 13, the driving motor 220, etc. are all universal standard components or components known to those skilled in the art, and the structures and principles thereof are all known to those skilled in the art through technical manuals or known through routine experimental methods, and in the idle position of the present device, all the electric devices mentioned above, which refer to power elements, electric devices, and an adaptive controller and a power supply, are connected through wires.

Finally, rectangular open slots 301 are respectively formed in the lower ends of the front wall and the rear wall of the moisture-proof box 30, mounting frames 310 are clamped at the four side outer walls of the moisture-absorbing plate 31, handles 311 are fixedly connected to the center of the top wall of the front end of each mounting frame 310, the frame bodies of the mounting frames 310 are sequentially inserted into the two open slots 301 from front to back, and the moisture-absorbing plate 31 is conveniently mounted at the bottom of the moisture-proof box 30 through the mounting frames 310.

The working principle of the lifting type photovoltaic access box provided by the invention is as follows:

the driving motor 220 is started to drive the positive and negative threaded rods 22 to rotate, so that the two sleeve plates 23 driven by the positive and negative threaded rods 22 move in the same direction or in opposite directions at the bottom end of the concave cavity 201, the shell 10 is driven to lift through the hinging action of the middle of the bottom part of the horizontal end of the support frame 21 and the head end of the inclined end of the support frame 21, the first motor 11 and the second motor 13 are driven to work, the first fan blade 110 is driven to rotate by the first motor 11, the outside air is sucked into the air inlet groove 101, the air reaches the moisture-proof box 30 after being filtered by the filter screen 12, moisture in the air is adsorbed by the moisture-absorbing plate 31, the second motor 13 is started to work, the second fan blade 130 is driven to rotate, and the hot air in the shell 10 is blown into the heat dissipation box 14 and is discharged to the outside through the heat dissipation holes 140.

The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The utility model provides a lift-type photovoltaic access case, includes photovoltaic access case body (1), its characterized in that: the photovoltaic access box body (1) comprises a shell (10) and a lifting part (2) arranged at the bottom end of the shell (10), and a moisture-proof part (3) arranged at the center of the top wall in a cavity of the shell (10), wherein two air inlet grooves (101) which are arranged side by side are arranged at the top of the shell (10), a first motor (11) is fixedly connected to the top wall of the shell (10) and positioned between the two air inlet grooves (101), a filter screen (12) is arranged in the air inlet grooves (101), the lifting part (2) comprises a supporting plate (20) and two supporting frames (21) which are symmetrically arranged at the top end of the supporting plate (20), the top walls of the horizontal ends of the two supporting frames (21) are respectively fixed with the bottom wall of the shell (10) through bolts (210), a concave cavity (201) is formed in the top wall of the supporting plate (20), a positive and negative threaded rod (22) which is longitudinally arranged is arranged in the concave cavity (201), two sleeve plates (23) are connected with two sides of a rod body of the positive and negative threaded rod (22) in a threaded manner, the tops of the two sleeve plates (23) are respectively welded and fixed with the bottom of the supporting frames (21) at the top ends of the same sides of the two sleeve plates, the moisture-proof part (3) comprises a moisture-proof box (30) which is fixed on the inner wall of the top of the shell (10) and has a vertically through structure, the two air inlet grooves (101) are respectively communicated with the top end of the moistureproof box (30), and a moisture absorption plate (31) is arranged at the bottom end of the moistureproof box (30).

2. The lift-type photovoltaic access box of claim 1, wherein: the novel heat radiation device is characterized in that an air outlet groove (102) is formed in the center of the left side wall of the shell (10), a heat radiation box (14) is fixedly connected to the outer end cover of the air outlet groove (102), the heat radiation box (14) is communicated with the inner wall of the shell (10), a plurality of heat radiation holes (140) are formed in the center of the outer wall of the heat radiation box (14), and a shielding shed (15) is further arranged at the top end of the shell (10).

3. The lift-type photovoltaic access box of claim 1, wherein: the output end of the first motor (11) penetrates through the top wall of the shell (10) and then stretches into the moisture-proof box (30), and the output shaft of the first motor (11) is rotationally connected with a first fan blade (110).

4. The lift-type photovoltaic access box of claim 2, wherein: the outer wall of the right side of the shell (10) is fixedly connected with a second motor (13), the tail end of an output shaft of the second motor (13) is coaxially connected with a second fan blade (130), and the fan body of the second fan blade (130) is opposite to the air outlet groove (102).

5. The lift-type photovoltaic access box of claim 1, wherein: four edges joint of filter screen (12) have filter screen frame (120), be equipped with respectively on roof around filter screen frame (120) and be scraping hook board (121) that bilateral symmetry set up, the left and right sides edge of air inlet tank (101) do not is fixed with diaphragm (1010) respectively, the bottom overlap joint of scraping hook board (121) is in on the diaphragm (1010) body of rod.

6. The lift-type photovoltaic access box of claim 2, wherein: the bottom of two sleeve plates (23) is in the cavity (201) is in the same direction or reverse slip, the bottom of support frame (21) slope end is equipped with fixed plate (212), fixedly connected with protruding axle (211) between the front and back inner wall of fixed plate (212), support frame (21) slope end terminal with protruding axle (211) articulated cooperation, support frame (21) horizontal end bottom intermediate position with support frame (21) slope end head end articulates.

7. The lift-type photovoltaic access box of claim 1, wherein: the front end of the positive and negative threaded rod (22) is coaxially fixed with a driving motor (220), the driving motor (220) is fixedly arranged on the left outer wall of the supporting plate (20), and four corners of the bottom of the supporting plate (20) are respectively provided with a supporting foot (24).

8. The lift-type photovoltaic access box of claim 1, wherein: rectangular open slots (301) are respectively formed in the lower ends of the front wall and the rear wall of the moisture-proof box (30), mounting frames (310) are clamped at the four side outer walls of the moisture-absorbing plates (31), handles (311) are fixedly connected to the center of the top wall of the front end of each mounting frame (310), and the frame bodies of the mounting frames (310) are sequentially inserted into the two open slots (301) from front to back.