Fit-type MPPT solar charging controller

Abstract

The invention is suitable for the field of solar charging, and provides a fit-type MPPT solar charging controller which comprises a controller box body, a cover plate is arranged on the front face of the controller box body, heat dissipation frames are arranged on the upper portion and the lower portion of the back face of the controller box body, and assembling pieces are arranged on the left edge and the right edge of each heat dissipation frame. Dustproof assemblies are arranged on the outer sides of the controller box body and the cover plate, a wiring mechanism is arranged at the bottom of the controller box body, and heat dissipation groove mechanisms are arranged on the left side wall and the right side wall of the controller box body. When the device is used, the servo motor drives the torsion roller to rotate, the sand prevention film on the outer side of the torsion roller can also rotate along with the torsion roller until the butt joint opening in the side wall of the sand prevention film deviates from the position of the ventilation opening, and then all the ventilation openings of the controller box body are blocked by the sand prevention film; the three vent grooves with different cross sectional areas can be aligned with the ventilation groove in turn for heat dissipation operation, and the selected vent groove is determined to be aligned with the ventilation groove according to the grade of sand and dust.

Description

Technical Field

[0001] The present invention belongs to the field of solar charging, and particularly relates to a fitting type MPPT solar charging controller. Background Art

[0002] With the development of industrial technology, modern solar charging technology has become more and more perfect. The solar controller is an important part of the solar power generation system and plays a crucial role in the solar power generation system. The main functions of the solar controller are to monitor the output voltage and current of the solar panel and charge or discharge the battery as needed;

[0003] However, for solar controllers used in extreme environments, better protection effects are required. The environment where solar power plants are located in desert areas is relatively harsh, and sandstorms occur in desert areas. There are heat dissipation grid bars on the side walls of the solar controller, and there is a heat dissipation fan inside the solar controller. When a sandstorm occurs, sand will enter the inside of the solar controller from the heat dissipation grid bars, which is likely to cause equipment damage;

[0004] Secondly, the wiring of the solar controller requires opening the bottom cover plate of the solar controller, and this also requires workers to use tools such as screwdrivers for wiring operations. If a line fails, it will require a lot of manpower to operate and repair. Summary of the Invention

[0005] The purpose of the present invention is to provide a fitting type MPPT solar charging controller for the deficiencies of the prior art. When the device is in use and encounters extreme weather such as sandstorms, the servo motor drives the torsion rod to rotate, and the sand prevention film outside the torsion rod will also rotate accordingly until the docking port on the side wall of the sand prevention film deviates from the position of the ventilation port, so that all the ventilation ports of the controller box are blocked by the sand prevention film. For periods when the dust is not serious, the stepper motor drives the rack to move through the driving gear, and the rack simultaneously drives three driven gears to rotate. Accordingly, the positioning columns below the driven gears will also twist, and three ventilation slots with different cross-sectional areas can take turns to align with the ventilation slots for heat dissipation operations. Which ventilation slot is selected to align with the ventilation slot is determined according to the dust level, so as to solve the problems mentioned in the background art.

[0006] To solve the above problems, the present invention provides the following technical solutions: a matching MPPT solar charging controller, comprising a controller box, a cover plate is provided on the front of the controller box, heat sinks are provided on the upper and lower sides of the back of the controller box, and assembly sheets are provided on the left and right edges of the heat sink; a dustproof component is provided on the outside of the controller box and the cover plate, a wiring mechanism is provided at the bottom of the controller box, and heat dissipation slot mechanisms are provided on the left and right side walls of the controller box; the dustproof component comprises torsion rods rotatably arranged on the four corners of the controller box, rotating slots matching the torsion rods are provided on the side walls of the controller box, sand-proof films are provided on the four torsion rods, and two docking ports are provided on the side walls of the sand-proof film, the two docking ports are respectively located at the positions of two heat dissipation slot mechanisms, one of the torsion rods is installed on the output shaft of the servo motor, and the servo motor is fixed on the inner wall of the controller box.

[0007] During use, when encountering extreme weather such as sandstorms, the servo motor drives the torsion rod to rotate, and the anti-sand film on the outside of the torsion rod will also rotate accordingly until the docking port on the side wall of the anti-sand film deviates from the position of the ventilation port, and then all the ventilation ports of the controller box are blocked by the anti-sand film. After the sandstorm is over, the anti-sand film will rotate back to align with the position of the heat sink mechanism.

[0008] Furthermore, the heat dissipation trough mechanism includes a ventilation port, and three ventilation ports in a straight line array are provided on the left and right side walls of the controller box, and a ventilation cylinder is provided on the inner wall of the ventilation port. The outer end of the ventilation cylinder and the inner port of the ventilation port are connected to each other through a ventilation channel, and a ventilation trough is provided at the inner end of the ventilation cylinder, and a flow regulating device is provided inside the ventilation cylinder.

[0009] When in use, when the cooling fan inside the controller case is working, the air inside and outside the controller case is convected from the ventilation channel and the ventilation slot.

[0010] Furthermore, the flow regulating device includes a positioning column rotatably arranged inside the ventilation cylinder, and three ventilation grooves are arranged on the positioning column. The widths of the ventilation grooves are different, and the central axes of the three ventilation grooves pass through three diameters respectively. The positioning column is connected to the angle control mechanism.

[0011] When in use, three ventilation slots with different cross-sectional areas can be aligned with the ventilation slot in turn to perform heat dissipation operations, and the ventilation slot to be aligned with is determined according to the level of sand and dust.

[0012] Further, the angle control mechanism includes a driven gear centered on the positioning post. The driven gear is located at the top of the ventilation cylinder housing. A stepping motor is fixedly installed on the inner side wall of the controller box body. A driving gear is provided on the output shaft of the stepping motor. A rack is provided between the driving gear and the three driven gears. The rack meshes with the driven gear and the driving gear respectively. A stabilizing component is provided at the end of the rack.

[0013] During use, in periods when the sand and dust are not severe, the stepping motor drives the rack to move through the driving gear. The rack simultaneously drives the three driven gears to rotate. Furthermore, the positioning post below the driven gear will also twist.

[0014] Further, the stabilizing component includes an insertion channel inside the rack. A steel bar is provided inside the insertion channel. The outer end of the steel bar is fixedly connected to the inner side wall of the controller box body.

[0015] During use, during the horizontal insertion process of the rack, the rack will insert back and forth relative to the steel bar. Furthermore, the steel bar can stabilize the movement of the rack.

[0016] Further, the wiring mechanism includes six wiring holes arranged in a linear array at the bottom of the controller box body. Wiring cylinders are fixedly installed at the inner ports of the wiring holes. A compaction cylinder is provided at the top of the wiring cylinder. A cover plate is provided at the opening of the compaction cylinder. A compaction head is rotatably provided on the compaction cylinder. A twisting tube is provided at the front end of the compaction head. The twisting tube passes through the opening in the cover plate. A shaft hole matching the twisting tube is provided on the side wall of the cover plate. The outer end of the twisting tube penetrates outside the cover plate. A wire slot is provided in the middle of the compaction head. The shallow opening of the wire slot is aligned with the wire passing channel inside the wiring cylinder. A two-millimeter gap is provided between the outer side wall of the compaction head and the inner side wall of the compaction cylinder. A locking mechanism is also provided inside the wire slot.

[0017] During use, when the controller box body is wiring, the end of the cable is inserted into the inside of the wiring cylinder. When the end of the cable enters the wire slot inside, then manually rotate the twisting tube and the compaction head. The end of the cable will enter the arc-shaped gap between the compaction head and the compaction cylinder. Furthermore, wiring can be achieved without using tools such as a screwdriver.

[0018] Further, the locking mechanism includes a threaded channel inside the twisting tube. A threaded rod is rotatably provided inside the threaded channel. A twisting head is provided at the top of the threaded rod. A pressing block is provided at the bottom of the threaded rod. The pressing block is inserted into the wire slot.

[0019] During use, when the end of the cable enters the wire slot inside, the staff starts to rotate the threaded rod until the pressing block at the bottom of the threaded rod locks the end of the cable.

[0020] Furthermore, arc chamfers are provided at the edges of the wire threading slots.

[0021] During use, the arc chamfers at the edges of the openings of the wire threading slots can prevent sharp edges from cutting the cables.

[0022] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0023] First, when the device is in use and encounters extreme weather such as sandstorms, the servo motor drives the torsion rod to rotate, and the sand-proof film outside the torsion rod will also rotate accordingly until the docking port on the side wall of the sand-proof film deviates from the position of the ventilation port, and then all the ventilation ports of the controller box are blocked by the sand-proof film. For periods when the sand and dust are not severe, the stepper motor drives the rack to move through the driving gear, and the rack simultaneously drives the three driven gears to rotate. Accordingly, the positioning posts below the driven gears will also twist, and the ventilation slots with three different cross-sectional areas can take turns to align with the ventilation slots for heat dissipation operations, and which ventilation slot is selected to align with the ventilation slot is determined according to the level of sand and dust.

[0024] Second, when wiring the controller box, insert the end of the cable into the inside of the wiring cylinder. When the end of the cable enters the wire threading slot, the staff starts to rotate the threaded rod until the pressing block at the bottom of the threaded rod locks the end of the cable. Then manually rotate the torsion tube and the compaction head, and the end of the cable will enter the arc-shaped gap between the compaction head and the compaction cylinder, and thus wiring can be achieved without using tools such as screwdrivers. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view schematic diagram of the present invention.

[0026] Figure 2 It is a side view schematic diagram of the present invention.

[0027] Figure 3 It is a sectional view schematic diagram of the present invention.

[0028] Figure 4 It is a schematic diagram of the ventilation cylinder of the present invention.

[0029] Figure 5 For the present invention Figure 4 Partial enlarged view of A.

[0030] Figure 6 It is a sectional view schematic diagram of the ventilation cylinder of the present invention.

[0031] Figure 7 It is a schematic diagram of the torsion tube of the present invention.

[0032] Figure 8 For the present invention Figure 7 Partial enlarged view of B.

[0033] Description of reference numerals:

[0034] Controller box 1, cover 101, ventilation port 102, torsion rod 103, heat dissipation frame 2, anti-sand film 3, docking port 301, torsion tube 4, threaded rod 401, torsion head 402, compacting head 403, pressing block 404, threading groove 405, arc chamfer 406, wiring barrel 5, compacting barrel 501, cover 502, ventilation barrel 6, ventilation groove 601, ventilation channel 602, positioning column 603, ventilation groove 604, rack 7, steel bar 701, driven gear 702, driving gear 703, stepping motor 704. DETAILED DESCRIPTION

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0036] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] The present invention provides a compatible MPPT solar charge controller, such as Figures 1-8As shown, it includes a controller box 1, a cover plate 101 is provided on the front of the controller box 1, heat sinks 2 are provided on the upper and lower sides of the back of the controller box 1, and assembly sheets are provided on the left and right edges of the heat sink 2; dustproof components are provided on the outside of the controller box 1 and the cover plate 101, a wiring mechanism is provided at the bottom of the controller box 1, and heat dissipation slot mechanisms are provided on the left and right side walls of the controller box 1; the dustproof component includes torsion bars 103 rotatably provided on the four corners of the controller box 1, and the side walls of the controller box 1 are provided with rotating slots matching the torsion bars 103, and the four torsion bars 103 are covered with sand-proof films 3, and the side walls of the sand-proof films 3 are provided with two docking ports 301, and the two docking ports 301 are respectively located at the positions of two heat dissipation slot mechanisms, and one of the torsion bars 103 is installed on the output shaft of the servo motor, and the servo motor is fixed on the inner wall of the controller box 1.

[0038] In this embodiment, when encountering extreme weather such as sandstorms, the servo motor drives the torsion rod 103 to rotate, and the sand-proof film 3 on the outside of the torsion rod 103 will also rotate together until the docking port 301 on the side wall of the sand-proof film 3 deviates from the position of the heat dissipation slot mechanism, and then all the vents of the controller box are blocked by the sand-proof film 3. After the sandstorm is over, the sand-proof film 3 rotates back to align with the position of the heat dissipation slot mechanism.

[0039] In a further embodiment of the present invention, Figures 1-3 As shown, the heat dissipation slot mechanism includes a ventilation port 102. Three ventilation ports 102 in a straight line array are provided on the left and right side walls of the controller housing 1. A ventilation cylinder 6 is provided on the inner side wall of the ventilation port 102. A ventilation channel 602 is connected between the outer end of the ventilation cylinder 6 and the inner end of the ventilation port 102. A ventilation slot 601 is provided at the inner end of the ventilation cylinder 6. A flow regulating device is provided inside the ventilation cylinder 6.

[0040] In this embodiment, when the cooling fan inside the controller housing 1 is working, air inside and outside the controller housing 1 is convected from the ventilation channel 602 and the ventilation slot 601 .

[0041] In a further embodiment of the present invention, Figures 1-6 As shown, the flow regulating device includes a positioning column 603 rotatably arranged inside the ventilation cylinder 6, and three ventilation grooves 604 are arranged on the positioning column 603. The widths of the ventilation grooves 604 are different. The central axes of the three ventilation grooves 604 pass through three diameters respectively, and the positioning column 603 is connected to the angle control mechanism.

[0042] In this embodiment, the ventilation slots 604 with three different cross-sectional areas can take turns to align with the ventilation slot 601 for heat dissipation operations. Which ventilation slot is selected to align with the ventilation slot 601 is determined according to the dust level. Compared with the heat dissipation mechanism of the prior art, the ventilation cross-section of the previous heat dissipation grid was fixed. If there is a weather with a large amount of dust, a lot of dust will enter.

[0043] In a further embodiment of the present invention, as Figures 1-5 shown, the angle control mechanism includes a driven gear 702 at the center of the positioning post 603. The driven gear 702 is located at the top of the outer shell of the ventilation cylinder 6. A stepping motor 704 is fixedly installed on the inner side wall of the controller box 1. A driving gear 703 is provided on the output shaft of the stepping motor 704. A rack 7 is provided between the driving gear 703 and the three driven gears 702. The rack 7 meshes with the driven gear 702 and the driving gear 703 respectively. A stabilizing component is provided at the end of the rack 7.

[0044] In this embodiment, during a period when the dust is not serious, the stepping motor 704 drives the rack 7 to move through the driving gear 703. The rack 7 simultaneously drives the three driven gears 702 to rotate. Furthermore, the positioning post 603 below the driven gear 702 will also twist.

[0045] In a further embodiment of the present invention, as Figures 4-5 shown, the stabilizing component includes an insertion channel inside the rack 7. A steel bar 701 is provided inside the insertion channel. The outer end of the steel bar 701 is fixedly connected to the inner side wall of the controller box 1.

[0046] In this embodiment, during the horizontal insertion process of the rack 7, the rack 7 will insert back and forth relative to the steel bar 701. Furthermore, the steel bar 701 can stabilize the movement of the rack.

[0047] In a further embodiment of the present invention, as Figure 3 、 7As shown in FIGS. 8, the wiring mechanism includes six linear-array wiring holes at the bottom of the controller box body 1. The inner ports of the wiring holes are fixedly installed with wiring cylinders 5. At the top of the wiring cylinder 5, there is a compaction cylinder 501. At the opening of the compaction cylinder 501, there is a cover plate 502. A compaction head 403 is rotatably arranged in the compaction cylinder 501. At the front end of the compaction head 403, there is a torsion tube 4 which passes through the opening hole of the cover plate 502. On the side wall of the cover plate 101, there is a shaft hole matching the torsion tube 4. The outer end of the torsion tube 4 penetrates to the outside of the cover plate 101. In the middle of the compaction head 403, there is a wire slot 405. The shallow opening of the wire slot 405 is aligned with the wire passing channel inside the wiring cylinder 5. There is a two-millimeter gap between the outer side wall of the compaction head 403 and the inner side wall of the compaction cylinder 501. Inside the wire slot 405, there is also a locking mechanism.

[0048] In this embodiment, when wiring the controller box body 1, insert the end of the cable into the inside of the wiring cylinder 5. When the cable end enters the inside of the wire slot 405, manually rotate the torsion tube 4 and the compaction head 403. The cable end will enter the arc-shaped gap between the compaction head 403 and the compaction cylinder 501, so that wiring can be achieved without using tools such as a screwdriver.

[0049] In a further embodiment of the present invention, as Figures 7-8 shown, the locking mechanism includes a threaded channel inside the torsion tube 4. Inside the threaded channel, a threaded rod 401 is rotatably arranged. At the top of the threaded rod 401, there is a torsion head 402. At the bottom of the threaded rod 401, there is a pressing block 404 which is inserted into the wire slot 405.

[0050] In this embodiment, when the cable end enters the inside of the wire slot 405, the staff starts to rotate the threaded rod 401 until the pressing block 404 at the bottom of the threaded rod 401 locks the cable end.

[0051] In a further embodiment of the present invention, as Figures 7-8 shown, arc chamfers 406 are provided at the edges of the opening of the wire slot 405.

[0052] In this embodiment, the arc chamfers 406 at the edges of the opening of the wire slot 405 can prevent the sharp edges from cutting the cable.

[0053] It should be noted that, for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0054] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above division of units may have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the shown or discussed coupling or communication connection between each other can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0055] The units described as separate components above may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they can be located in one place, or can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions or other adjustments to the features in the embodiments of the present invention according to the situation without creative efforts, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A fitting type MPPT solar charging controller, characterized in that: It comprises a controller box (1), the front of the controller box (1) is provided with a cover plate (101), the upper and lower parts of the back of the controller box (1) are provided with heat dissipation racks (2), and the left and right edges of the heat dissipation rack (2) are provided with assembly sheets; Dustproof components are arranged on the outside of the controller box (1) and the cover plate (101), a wiring mechanism is arranged at the bottom of the controller box (1), and heat dissipation slot mechanisms are arranged on the left and right side walls of the controller box (1); The dustproof component comprises torsion bars (103) rotatably arranged at four corners of a controller housing (1); a rotatable slot matching the torsion bars (103) is arranged on the side wall of the controller housing (1); a sand-proof film (3) is mounted on the four torsion bars (103); two docking ports (301) are arranged on the side wall of the sand-proof film (3); the two docking ports (301) are respectively located at the positions of two heat dissipation slot mechanisms; one of the torsion bars (103) is mounted on the output shaft of a servo motor, and the servo motor is fixed on the inner side wall of the controller housing (1).

2. The fitting type MPPT solar charging controller according to claim 1, characterized in that: The heat dissipation slot mechanism comprises a ventilation port (102), three ventilation ports (102) in a straight line array are arranged on the left and right side walls of the controller housing (1), a ventilation cylinder (6) is arranged on the inner side wall of the ventilation port (102), a ventilation channel (602) is connected between the outer end of the ventilation cylinder (6) and the inner end of the ventilation port (102), a ventilation slot (601) is arranged at the inner end of the ventilation cylinder (6), and a flow regulating device is arranged inside the ventilation cylinder (6).

3. The conforming MPPT solar charging controller according to claim 2, characterized in that: The flow regulating device comprises a positioning column (603) rotatably arranged inside the ventilation cylinder (6), and three ventilation grooves (604) are arranged on the positioning column (603). The widths of the ventilation grooves (604) are different, and the central axes of the three ventilation grooves (604) pass through three diameters respectively. The positioning column (603) is connected to the angle control mechanism.

4. The fitting type MPPT solar charging controller according to claim 3, characterized in that: The angle control mechanism comprises a driven gear (702) on the axis of the positioning column (603), the driven gear (702) being located at the top of the housing of the ventilation cylinder (6), a stepper motor (704) being fixedly mounted on the inner wall of the controller housing (1), a driving gear (703) being arranged on the output shaft of the stepper motor (704), a rack (7) being arranged between the driving gear (703) and the three driven gears (702), the rack (7) being respectively meshed with the driven gear (702) and the driving gear (703), and a stabilizing component being arranged at the end of the rack (7).

5. The fitting type MPPT solar charging controller according to claim 4, characterized in that: The stabilizing component comprises an insertion channel inside the rack (7), a steel bar (701) is arranged inside the insertion channel, and the outer end of the steel bar (701) is fixedly connected to the inner side wall of the controller box (1).

6. The fitting type MPPT solar charging controller according to claim 1, characterized in that: The wiring mechanism includes six wire holes arranged in a linear array at the bottom of the controller box body (1). The inner ports of the wire holes are fixedly installed with wire barrels (5). A compaction barrel (501) is arranged at the top of the wire barrel (5). A cover plate (502) is arranged at the opening of the compaction barrel (501). A compaction head (403) is rotatably arranged in the compaction barrel (501). A torsion tube (4) is arranged at the front end of the compaction head (403). The torsion tube (4) passes through the opening of the cover plate (502). A shaft hole matching the torsion tube (4) is arranged on the side wall of the cover plate (101). The outer end of the torsion tube (4) penetrates to the outside of the cover plate (101). A wire slot (405) is arranged in the middle of the compaction head (403). The shallow opening of the wire slot (405) is aligned with the wire passing channel inside the wire barrel (5). A two-millimeter gap is arranged between the outer side wall of the compaction head (403) and the inner side wall of the compaction barrel (501). A locking mechanism is also arranged inside the wire slot (405).

7. The fitting type MPPT solar charging controller according to claim 6, wherein: The locking mechanism includes a threaded channel inside the torsion tube (4). A threaded rod (401) is rotatably arranged inside the threaded channel. A torsion head (402) is arranged at the top of the threaded rod (401). A pressing block (404) is arranged at the bottom of the threaded rod (401). The pressing block (404) is inserted into the wire slot (405).

8. The fitting type MPPT solar charging controller according to claim 6, wherein: Arc chamfers (406) are arranged at the edges of the opening of the wire slot (405).

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