Anti-burnout junction box in photovoltaic power generation system

Abstract

The utility model relates to the technical field of photovoltaic equipment, in particular to an anti-burnout junction box in a photovoltaic power generation system, which comprises a base, the inner wall of one side of the base is movably clamped with the outer walls of two exhaust mechanisms respectively, and the outer wall of the other side of the base is movably clamped with the outer walls of two rotating mechanisms respectively; one sides of the two rotating mechanisms are fixedly connected with one sides of the two moving mechanisms correspondingly, and by rotating a rotating threaded ring, the rotating threaded ring rotates to make the rotating threaded ring do linear motion outside the driving rotating pipe through the thread effect. The rotating threaded ring continuously rotates, the rotating threaded ring linearly moves outside the driven rotating pipe through the action of threads, the rotating threaded ring linearly moves to one side of the lower box body, the driven rotating pipe, the driving rotating pipe and the lower box body can be tightly connected through a rotating limiting plate, and moisture and dust in external air are prevented from entering the box body; the junction box is prevented from being burnt out due to short circuit in the junction box caused by moisture and dust, and convenience is brought to people.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic equipment, in particular to a burn-out prevention junction box in a photovoltaic power generation system. Background Art

[0002] Photovoltaic power generation system refers to a power generation system that uses the photovoltaic effect of photovoltaic cells to directly convert solar radiation energy into electrical energy. It is divided into independent photovoltaic system and grid-connected photovoltaic system. Photovoltaic power generation system is composed of solar cell arrays, battery packs, charge and discharge controllers, inverters, AC distribution cabinets, solar tracking control systems and other equipment. Junction boxes are required to connect various equipment in the photovoltaic power generation system.

[0003] At present, most of the junction boxes on the market extend external cables into the junction box for splicing. There will be gaps at the cable entrance of the junction box. Moisture and dust in the external air will enter the box through the gaps, causing the junction box to short-circuit and burn out, which brings inconvenience to people. Utility Model Content

[0004] The purpose of the utility model is to provide a burning-proof junction box in a photovoltaic power generation system, so as to solve the problem in the above background technology that moisture and dust in the external air can enter the box body through the gaps, causing the junction box to short-circuit and burn. To achieve the above purpose, the utility model provides the following technical solutions: a burning-proof junction box in a photovoltaic power generation system, comprising a base, the inner wall of one side of the base is respectively movably engaged with the outer walls of two exhaust mechanisms, the outer wall of the other side of the base is respectively movably engaged with the outer walls of two rotating mechanisms, and one side of the two rotating mechanisms is respectively fixedly connected with one side of two moving mechanisms.

[0005] The outer walls of the two moving mechanisms are respectively movably engaged with the inner walls of the power connection mechanism, and one side of the power connection mechanism is respectively movably abutted with one side of the two moving mechanisms.

[0006] Preferably, the base includes a lower box body, a sealing ring and an upper box body, the top of the lower box body is movably abutted against the bottom of the sealing ring, and the top of the sealing ring is fixedly connected to the bottom of the upper box body, two upper box through holes are respectively provided on one side of the upper box body, and two wiring through holes are respectively provided on one side of the upper box body and the lower box body.

[0007] Preferably, the two exhaust mechanisms are composed of an exhaust mounting frame, an exhaust bracket, an exhaust rotating shaft and exhaust fan blades, the outer wall of the exhaust mounting frame is movably engaged with the inner wall of the upper box through hole, and the inner wall of the exhaust mounting frame close to the front side is fixedly connected to the outer wall of the exhaust bracket, one side of the exhaust bracket is movably engaged with one side of the exhaust rotating shaft, and the outer side wall of the exhaust rotating shaft is fixedly connected to one side of the exhaust fan blade.

[0008] Preferably, the two rotating mechanisms each include a driven rotating tube, a rotating limit plate, a rotating threaded ring and an active rotating tube, the outer wall of the driven rotating tube is movably connected to the inner wall of the cable arrangement through hole, and one side of the driven rotating tube is fixedly connected to one side of the rotating limit plate, the outer wall of the driven rotating tube close to the other side is threadedly connected to the inner wall of one side of the rotating threaded ring, and the inner wall of the other side of the rotating threaded ring is threadedly connected to the outer wall of the active rotating tube.

[0009] Preferably, the two moving mechanisms are composed of a moving threaded tube, a moving block, a sealing plate and a moving limit plate, one side of the moving threaded tube is fixedly connected to the other side of the limit plate, and a threaded through hole is provided inside the moving block, the inner wall of the threaded through hole is threadedly connected to the outer wall of the moving threaded tube, and one side of the moving block is fixedly connected to one side of the sealing plate, and the bottom of the moving block is fixedly connected to the top of the moving limit plate.

[0010] Preferably, the power connection mechanism includes a power connection base, two sealed power connection blocks and two cables, two slide grooves are provided inside the power connection base close to one side, and the inner walls of the two slide grooves are slidably connected to the outer walls of the two movable limit plates respectively, the top of the other side of the power connection base is fixedly connected to the bottom of the two sealed power connection blocks respectively, and one side of the two sealed power connection blocks is provided with a power connection through hole, the inner walls of the two power connection through holes are movably engaged with the outer walls of the two cables respectively, and one side of the two sealed power connection blocks is movably abutted with the other side of the two sealing plates respectively.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, by rotating the rotating threaded ring, the rotating threaded ring rotates through the action of the thread to make the rotating threaded ring perform a linear motion outside the active rotating tube, and the rotating threaded ring continues to rotate through the action of the thread to make the rotating threaded ring perform a linear motion outside the driven rotating tube, and the rotating threaded ring linearly moves to one side of the lower box body, and the driven rotating tube, the active rotating tube and the lower box body can be tightly connected by rotating the limit plate, thereby reducing the moisture and dust in the external air from entering the box body, preventing the short circuit in the junction box from burning the junction box due to moisture and dust, and bringing convenience to people.

[0013] In the utility model, the rotating threaded ring continues to rotate, and the rotation of the rotating threaded ring drives the driven rotating tube to rotate, and the rotation of the driven rotating tube drives the rotating limiting plate to rotate, and the rotation of the rotating limiting plate drives the movable threaded tube to rotate, and the rotation of the movable threaded tube drives the movable block to perform linear motion through the action of the thread and the limiting action of the movable limiting plate, and the linear motion of the movable block drives the linear motion of the sealing plate, and the linear motion of the sealing plate can tightly abut against the sealing power block, which can prevent external moisture and dust from entering the box body, and prevent the short circuit in the junction box caused by moisture and dust from burning the junction box, thereby bringing convenience to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is an exploded view of the utility model;

[0017] Figure 4 For the utility model Figure 3 Enlarged view of the exhaust mechanism.

[0018] In the figure: 1. base; 101. lower box body; 102. sealing ring; 103. upper box body; 2. exhaust mechanism; 201. exhaust mounting frame; 202. exhaust bracket; 203. exhaust rotating shaft; 204. exhaust fan blade; 3. rotating mechanism; 301. driven rotating tube; 302. rotating limit plate; 303. rotating threaded ring; 304. active rotating tube; 4. moving mechanism; 401. moving threaded tube; 402. moving block; 403. sealing plate; 404. moving limit plate; 5. power connection mechanism; 501. power connection base; 502. sealed power connection block; 503. cable. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 4 The utility model provides a technical solution: a burn-out prevention junction box in a photovoltaic power generation system, comprising a base 1, an inner wall on one side of the base 1 is movably connected to the outer walls of two exhaust mechanisms 2, an outer wall on the other side of the base 1 is movably connected to the outer walls of two rotating mechanisms 3, and one side of the two rotating mechanisms 3 is fixedly connected to one side of two moving mechanisms 4.

[0021] The outer walls of the two moving mechanisms 4 are movably engaged with the inner walls of the power connection mechanism 5 , and one side of the power connection mechanism 5 is movably abutted with one side of the two moving mechanisms 4 .

[0022] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the base 1 includes a lower box body 101, a sealing ring 102 and an upper box body 103. The top of the lower box body 101 is movably abutted against the bottom of the sealing ring 102, and the top of the sealing ring 102 is fixedly connected to the bottom of the upper box body 103. Two upper box through holes are respectively provided on one side of the upper box body 103, and two wiring through holes are respectively provided on one side of the upper box body 103 and the lower box body 101. The upper box body 103 and the lower box body 101 are combined to form a junction box.

[0023] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the two exhaust mechanisms 2 are composed of an exhaust mounting frame 201, an exhaust bracket 202, an exhaust rotating shaft 203 and an exhaust fan blade 204. The outer wall of the exhaust mounting frame 201 is movably engaged with the inner wall of the through hole of the upper box, and the inner wall of the exhaust mounting frame 201 close to the front side is fixedly connected to the outer wall of the exhaust bracket 202. One side of the exhaust bracket 202 is movably engaged with one side of the exhaust rotating shaft 203, and the outer side wall of the exhaust rotating shaft 203 is fixedly connected to one side of the exhaust fan blade 204. The rotation of the exhaust fan blade 204 can enable heat exchange inside and outside the box body to prevent overheating and fire.

[0024] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the two rotating mechanisms 3 each include a driven rotating tube 301, a rotating limit plate 302, a rotating threaded ring 303 and an active rotating tube 304. The outer wall of the driven rotating tube 301 is movably sleeved with the inner wall of the cable through hole, and one side of the driven rotating tube 301 is fixedly connected to one side of the rotating limit plate 302. The outer wall of the driven rotating tube 301 close to the other side is threadedly connected with the inner wall of one side of the rotating threaded ring 303, and the inner wall of the other side of the rotating threaded ring 303 is threadedly connected with the outer wall of the active rotating tube 304. The rotating threaded ring 303 is rotated, and the rotating threaded ring 303 is rotated through the action of the thread to make the rotating threaded ring 304 rotate. 03 performs linear motion outside the active rotating tube 304, and the rotating threaded ring 303 continues to rotate, so that the rotating threaded ring 303 performs linear motion outside the driven rotating tube 301 through the thread action, and the rotating threaded ring 303 linearly moves to one side of the lower box body 101. The driven rotating tube 301 and the active rotating tube 304 can be tightly connected with the lower box body 101 through the rotating limit plate 302, reducing the external humid air from entering the box body, and continuing to rotate the rotating threaded ring 303. The rotating threaded ring 303 rotates to drive the driven rotating tube 301 to rotate, and the driven rotating tube 301 rotates to drive the rotating limit plate 302 to rotate.

[0025] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the two moving mechanisms 4 are composed of a moving threaded tube 401, a moving block 402, a sealing plate 403 and a moving limiting plate 404. One side of the moving threaded tube 401 is fixedly connected to the other side of the rotating limiting plate 302, and a threaded through hole is arranged inside the moving block 402. The inner wall of the threaded through hole is threadedly connected to the outer wall of the moving threaded tube 401, and one side of the moving block 402 is fixedly connected to one side of the sealing plate 403. The bottom of the moving block 402 is fixedly connected to the top of the moving limiting plate 404. The rotation of the rotating limiting plate 302 drives the moving threaded tube 401 to rotate. The rotation of the moving threaded tube 401 drives the moving block 402 to perform linear motion through the thread action and the limiting action of the moving limiting plate 404. The linear motion of the moving block 402 drives the sealing plate 403 to move linearly.

[0026] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the power connection mechanism 5 includes a power connection base 501, two sealed power connection blocks 502 and two cables 503. Two slide grooves are arranged inside the power connection base 501 near one side, and the inner walls of the two slide grooves are respectively slidably connected to the outer walls of the two movable limit plates 404, and the top of the other side of the power connection base 501 is respectively fixedly connected to the bottom of the two sealed power connection blocks 502, and one side of the two sealed power connection blocks 502 is provided with power connection holes, and the inner walls of the two power connection holes are respectively movably connected to the outer walls of the two cables 503, and one side of the two sealed power connection blocks 502 is respectively movably abutted against the other side of the two sealing plates 403, and the sealing plate 403 can be linearly moved to tightly abut against the sealed power connection block 502, which can prevent external moisture and dust from entering the box body, and prevent the short circuit in the junction box caused by moisture and dust from burning the junction box, which brings convenience to people.

[0027] The use method and advantages of the utility model: When the anti-burning junction box in the photovoltaic power generation system is working, the working process is as follows:

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, by rotating the rotating threaded ring 303, the rotating threaded ring 303 rotates through the action of the thread to make the rotating threaded ring 303 perform linear motion outside the active rotating tube 304, and the rotating threaded ring 303 continues to rotate through the action of the thread to make the rotating threaded ring 303 perform linear motion outside the driven rotating tube 301, and the rotating threaded ring 303 linearly moves to one side of the lower box body 101. By rotating the limiting plate 302, the driven rotating tube 301 and the active rotating tube 304 can be tightly connected with the lower box body 101, thereby reducing the external humid air from entering the box body, and the rotating threaded ring 303 continues to be rotated. The rotating threaded ring 303 The rotation drives the driven rotating tube 301 to rotate, the rotation of the driven rotating tube 301 drives the rotating limit plate 302 to rotate, the rotation of the rotating limit plate 302 drives the movable threaded tube 401 to rotate, the rotation of the movable threaded tube 401 drives the movable block 402 to move linearly through the action of the thread and the limiting action of the movable limit plate 404, the linear motion of the movable block 402 drives the sealing plate 403 to move linearly, the linear motion of the sealing plate 403 can be tightly against the sealing power connection block 502, which can prevent external moisture and dust from entering the box body, and prevent the short circuit in the junction box caused by moisture and dust from burning the junction box, which brings convenience to people.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A burn-out prevention junction box in a photovoltaic power generation system, comprising a base (1), characterized in that: The inner wall of one side of the base (1) is movably engaged with the outer walls of the two exhaust mechanisms (2), and the outer wall of the other side of the base (1) is movably engaged with the outer walls of the two rotating mechanisms (3); one side of the two rotating mechanisms (3) is fixedly connected with one side of the two moving mechanisms (4); The outer walls of the two movable mechanisms (4) are respectively movably engaged with the inner wall of the power connection mechanism (5), and one side of the power connection mechanism (5) is respectively movably abutted with one side of the two movable mechanisms (4).

2. The anti-burnout junction box in a photovoltaic power generation system according to claim 1, characterized in that: The base (1) comprises a lower box body (101), a sealing ring (102) and an upper box body (103); the top of the lower box body (101) is movably abutted against the bottom of the sealing ring (102), and the top of the sealing ring (102) is fixedly connected to the bottom of the upper box body (103); one side of the upper box body (103) is respectively provided with two upper box through holes, and one side of the upper box body (103) and the lower box body (101) are respectively provided with two wiring through holes.

3. The anti-burnout junction box in a photovoltaic power generation system according to claim 2, characterized in that: The two exhaust mechanisms (2) are composed of an exhaust installation frame (201), an exhaust bracket (202), an exhaust rotating shaft (203) and an exhaust fan blade (204); the outer wall of the exhaust installation frame (201) is movably engaged with the inner wall of the upper box through hole, and the inner wall of the exhaust installation frame (201) close to the front side is fixedly connected to the outer wall of the exhaust bracket (202); one side of the exhaust bracket (202) is movably engaged with one side of the exhaust rotating shaft (203), and the outer side wall of the exhaust rotating shaft (203) is fixedly connected to one side of the exhaust fan blade (204).

4. The anti-burnout junction box in a photovoltaic power generation system according to claim 2, characterized in that: The two rotating mechanisms (3) each comprise a driven rotating tube (301), a rotating limit plate (302), a rotating threaded ring (303) and a driving rotating tube (304); the outer wall of the driven rotating tube (301) is movably sleeved with the inner wall of the cable arrangement through hole, and one side of the driven rotating tube (301) is fixedly connected to one side of the rotating limit plate (302); the outer wall of the driven rotating tube (301) close to the other side is threadedly connected to the inner wall of one side of the rotating threaded ring (303), and the inner wall of the other side of the rotating threaded ring (303) is threadedly connected to the outer wall of the driving rotating tube (304).

5. The anti-burnout junction box in a photovoltaic power generation system according to claim 4, characterized in that: The two moving mechanisms (4) are both composed of a moving threaded tube (401), a moving block (402), a sealing plate (403) and a moving limiting plate (404); one side of the moving threaded tube (401) is fixedly connected to the other side of the rotating limiting plate (302); a threaded through hole is provided inside the moving block (402); the inner wall of the threaded through hole is threadedly connected to the outer wall of the moving threaded tube (401); one side of the moving block (402) is fixedly connected to one side of the sealing plate (403); and the bottom of the moving block (402) is fixedly connected to the top of the moving limiting plate (404).

6. The anti-burnout junction box in a photovoltaic power generation system according to claim 5, characterized in that: The power connection mechanism (5) comprises a power connection base (501), two sealed power connection blocks (502) and two cables (503); two slide grooves are arranged inside the power connection base (501) near one side, and the inner walls of the two slide grooves are respectively slidably connected to the outer walls of the two movable limit plates (404); the top of the other side of the power connection base (501) is respectively fixedly connected to the bottoms of the two sealed power connection blocks (502); one side of the two sealed power connection blocks (502) is provided with a power connection through hole; the inner walls of the two power connection through holes are respectively movably engaged with the outer walls of the two cables (503); and one side of the two sealed power connection blocks (502) is respectively movably abutted against the other side of the two sealing plates (403).

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