Photovoltaic controller with electrical protection structure

Abstract

The utility model provides a photovoltaic controller with an electrical protection structure, which comprises a protective outer cover, a fuse and a transmission shaft, a photovoltaic controller main body is arranged in the protective outer cover, a hollow fixed frame and a hollow support plate are respectively fixed at the left end and the right end in the protective outer cover, and a sliding leg is inserted in the hollow fixed frame in a sliding manner. A bearing seat is installed at the upper end of the hollow supporting plate, a nut cylinder is fixed to the inner side of the bearing seat in a penetrating mode, and a fourth gear is fixed to the upper end of the outer portion of the nut cylinder, so that the problems that in an existing electrical protection structure, once a fuse is triggered, manual replacement and disassembly are needed, the disassembly process is complex, and time and cost are increased are solved; according to the utility model, a threaded lifting type transmission structure is adopted, so that the fuse can be quickly moved out, a worker can quickly dismount the fuse, the fuse replacement process is simplified, a new fuse can be conveniently replaced to carry out electrical protection on the photovoltaic controller, and time and labor are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a photovoltaic controller with electrical protection structure belongs to photovoltaic controller technical field. BACKGROUND

[0002] The photovoltaic controller is one of the core components in the photovoltaic system, responsible for managing the electrical energy generated by the photovoltaic panel and safely storing it in the battery or supplying it to the load. Since the photovoltaic system is usually installed in an outdoor environment, the photovoltaic controller may face various electrical threats, such as lightning, overvoltage, undervoltage, overcurrent, etc., so effective electrical protection measures are needed to ensure its normal operation and prolong its service life.

[0003] However, once some protection elements (such as fuses) in the existing electrical protection structure are triggered, they need to be manually replaced and removed, which is a complex process that increases time and cost. There is an urgent need for a photovoltaic controller with electrical protection structure to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a photovoltaic controller with electrical protection structure to solve the problems raised in the background art. The utility model adopts a threaded lifting type transmission structure, which can quickly remove the fuse to facilitate the quick disassembly of the staff, simplifying the process of replacing the fuse.

[0005] In order to achieve the above purpose, the utility model is implemented by the following technical scheme: a photovoltaic controller with electrical protection structure, comprising a protective cover, a fuse and a transmission shaft, the protective cover is internally installed with a photovoltaic controller main body, the protective cover is internally fixed with a hollow fixed frame and a hollow support plate at the left and right ends respectively, a sliding leg is slidingly inserted into the hollow fixed frame, a bearing seat is installed on the upper end of the hollow support plate, a nut cylinder is fixedly penetrated into the inner side of the bearing seat, a fourth gear is fixedly installed on the outer upper end of the nut cylinder, a threaded moving rod is threadedly inserted into the nut cylinder, a horizontal support table is horizontally installed on the upper end of the threaded moving rod and the upper end of the sliding leg, a fixed rod is fixedly installed on the left and right sides of the upper end of the horizontal support table, an arc-shaped temperature insulation sheet is fixedly installed on the upper end of the horizontal support table, a conductive block is fixedly installed on the opposite inner sides of the two fixed rods, a stepped thread cylinder is fixedly installed on the outer side of the left conductive block, an internal thread cylinder is threadedly installed on the outer side of the stepped thread cylinder, a return spring is horizontally installed in the stepped thread cylinder and the internal thread cylinder, an insulating cylinder is fixedly installed on the outer side of the right conductive block, the fuse is clamped at the arc-shaped temperature insulation sheet, a hand screw block is installed on the right side of the upper end of the protective cover through a bearing, and a first gear is installed on the lower end of the hand screw block, a transmission shaft is horizontally installed on the right end of the protective cover through a bearing, and a third gear and a second gear are fixedly installed on the outer left end of the transmission shaft.

[0006] Furthermore, the positive electrode of the photovoltaic controller body is connected to the left conductive block via a spiral wire.

[0007] Furthermore, the protective cover has a heat dissipation hole at the rear end and a plug-in interface at the front end.

[0008] Furthermore, the left end of the fuse is inserted into the internally threaded cylinder and is electrically connected to the return spring, while the right end of the fuse is inserted into the insulating cylinder and is electrically connected to the right conductive block, which is connected to an external power source via a wire.

[0009] Furthermore, the upper end of the protective cover is provided with a disassembly slot, which is located directly above the fuse, and a step fastener is provided at the disassembly slot.

[0010] Furthermore, the second gear meshes with the first gear for transmission, and the third gear meshes with the fourth gear for transmission.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a photovoltaic controller with an electrical protection structure. Because it incorporates a hand-tightening block, a first gear, a second gear, a transmission shaft, a third gear, a fourth gear, a nut sleeve, a bearing seat, a hollow support plate, and a threaded moving rod, our design improvements and practical use have shown that this device has a reasonable structure and good practicality. It adopts a threaded lifting transmission structure, enabling rapid removal of the fuse. Furthermore, it is equipped with a sliding leg, a horizontal support platform, a fixed rod, a stepped threaded sleeve, a return spring, an internal threaded sleeve, and an arc-shaped heat insulation sheet, facilitating quick fuse removal by operators, simplifying the fuse replacement process, and making it easier to replace the fuse for electrical protection of the photovoltaic controller, while saving time and effort. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a photovoltaic controller with an electrical protection structure according to the present invention;

[0014] Figure 2 This is a cross-sectional schematic diagram of a photovoltaic controller with an electrical protection structure according to the present invention;

[0015] Figure 3 This is a schematic diagram showing the disassembled internal threaded cylinder of a photovoltaic controller with an electrical protection structure according to this utility model.

[0016] Figure 4 for Figure 2 A magnified view of a portion of the image.

[0017] In the figure: 1 - protective cover, 2 - photovoltaic controller main body, 3 - hollow fixed frame, 4 - sliding leg, 5 - horizontal support platform, 6 - fixed rod, 7 - stepped threaded cylinder, 8 - reset spring, 9 - internal threaded cylinder, 10 - fuse, 11 - arc-shaped temperature isolation sheet, 12 - stepped buckle plate, 13 - hand twisting block, 14 - first gear, 15 - second gear, 16 - transmission shaft, 17 - third gear, 18 - fourth gear, 19 - nut cylinder, 20 - bearing seat, 21 - hollow support plate, 22 - threaded moving rod. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0019] Please refer to Figures 1-4 The utility model provides a kind of photovoltaic controller with electrical protection structure, including protective cover 1, fuse 10 and transmission shaft 16, protective cover 1 inside is equipped with photovoltaic controller main body 2, protective cover 1 inside left and right ends are fixed with hollow fixed frame 3 and hollow support plate 21, sliding leg 4 is slidably inserted in hollow fixed frame 3, bearing seat 20 is installed on the upper end of hollow support plate 21, nut cylinder 19 is fixedly penetrated in the inner side of bearing seat 20, fourth gear 18 is fixed on the outer upper end of nut cylinder 19, threaded moving rod 22 is inserted in nut cylinder 19 by thread, horizontal support platform 5 is horizontally installed on the upper end of threaded moving rod 22 with sliding leg 4, fixed rod 6 is fixed on the upper end of horizontal support platform 5 left and right sides, arc-shaped temperature isolation sheet 11 is fixed on the upper end of horizontal support platform 5 middle, electrically-conductive block is fixed on the opposite inner side of two fixed rods 6, stepped threaded cylinder 7 is fixed on the outer left side of electrically-conductive block, internal threaded cylinder 9 is installed on the outer threaded of stepped threaded cylinder 7, reset spring 8 is horizontally installed in stepped threaded cylinder 7 and internal threaded cylinder 9, insulating cylinder is fixed on the outer right side of electrically-conductive block, fuse 10 is clamped at arc-shaped temperature isolation sheet 11, hand twisting block 13 is installed on the lower end of the right side of protective cover 1 through bearing, and first gear 14 is installed on the lower end of hand twisting block 13, transmission shaft 16 is horizontally installed in the right end of the inside of protective cover 1 through bearing, third gear 17 and second gear 15 are fixed on the outer left end of transmission shaft 16, this design solves the problem that fuse in existing electrical protection structure needs to be manually replaced and disassembled once triggered, the disassembly process is more complex, and time and cost are increased.

[0020] As a first embodiment of the utility model: photovoltaic controller main part 2 positive pole is connected with left side conductive block through spiral wire, fuse 10 left end is inserted in inner thread cylinder 9, and fuse 10 left end is connected with reset spring 8, and fuse 10 right end is inserted in insulating cylinder, and fuse 10 right end is connected with right side conductive block, and right side conductive block is connected with external power supply through wire, and then the positive pole of photovoltaic controller main part 2 can be indirectly connected with the left end of fuse 10 through spiral wire.

[0021] The protective cover 1 rear end is provided with a heat dissipation hole, the protective cover 1 front end is provided with a plug-in interface, the protective cover 1 upper end is provided with a dismounting slot, and the dismounting slot is directly above the fuse 10, and a stepped buckle plate 12 is clamped at the dismounting slot. The added stepped buckle plate 12 can shield the dismounting slot. The second gear 15 is in meshing transmission with the first gear 14, and the third gear 17 is in meshing transmission with the fourth gear 18. The added second gear 15 is in meshing transmission with the first gear 14, and the third gear 17 is in meshing transmission with the fourth gear 18. When the first gear 14 rotates, the second gear 15 can be driven to rotate, and when the third gear 17 rotates, the fourth gear 18 can be driven to rotate.

[0022] As a second embodiment of the utility model: photovoltaic controller main part 2 positive pole is connected with left side conductive block through spiral wire, left side conductive block is connected with reset spring 8, fuse 10 left end is inserted in inner thread cylinder 9, and fuse 10 left end is connected with reset spring 8, and fuse 10 right end is inserted in insulating cylinder, and fuse 10 right end is connected with right side conductive block, and right side conductive block is connected with external power supply through wire, and then the positive pole of photovoltaic controller main part 2 can be indirectly connected with the left end of fuse 10 through spiral wire; when the current of photovoltaic controller main part 2 is too large, the fuse 10 is overheated and fused, which can protect the photovoltaic controller main part 2 from overcurrent, and the photovoltaic controller main part 2 and the fuse 10 are existing mature components, and their working principles are known to those skilled in the art, so they are not described in detail.

[0023] When the fuse 10 needs to be disassembled, first, the power supply is disconnected, the stepped buckle plate 12 is pulled out, and the fuse 10 is tested by a test pen to see if there is residual current, if there is no residual current, first, the hand knob 13 is twisted, the hand knob 13 can drive the first gear 14 to rotate, the first gear 14 drives the second gear 15 to mesh and rotate, and the transmission shaft 16 and the third gear 17 can be driven to rotate, the third gear 17 rotates to drive the fourth gear 18 to mesh and rotate, the fourth gear 18 rotates to make the nut cylinder 19 rotate in place in the bearing seat 20, the nut cylinder 19 rotates to drive the threaded moving rod 22 to move upwards through the threaded principle, and then the horizontal support table plate 5 can be moved upwards (in this process, the sliding leg 4 slides upwards in the hollow fixed frame 3), until the fuse 10 moves to the disassembly slot, the inner threaded cylinder 9 is twisted to the right, until the inner threaded cylinder 9 is separated from the stepped threaded cylinder 7, then the fuse 10 is pulled to the left and upwards, until the right end of the fuse 10 is pulled out of the insulating cylinder, and the disassembly of the fuse 10 can be realized, which is quick and convenient.

[0024] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and for those skilled in the art, obviously, the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0025] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A photovoltaic controller with electrical protection structure, comprising a protective cover (1), a fuse (10) and a transmission shaft (16), characterized in that: The protective cover (1) is internally provided with a photovoltaic controller body (2), the left and right ends of the protective cover (1) are respectively fixed with a hollow fixed frame (3) and a hollow support plate (21), a sliding leg (4) is slidingly inserted into the hollow fixed frame (3), a bearing seat (20) is installed on the upper end of the hollow support plate (21), a nut cylinder (19) is fixedly penetrated into the inner side of the bearing seat (20), a fourth gear (18) is fixedly arranged on the outer upper end of the nut cylinder (19), and a threaded moving rod (22) is threadedly inserted into the nut cylinder (19). A horizontal support table plate (5) is horizontally installed on the upper end of the threaded moving rod (22) and the upper end of the sliding leg (4), the upper end of the horizontal support table plate (5) is fixed with fixed rods (6) on the left and right sides, an arc-shaped temperature insulation sheet (11) is fixedly arranged on the upper end of the horizontal support table plate (5), the opposite inner sides of the two fixed rods (6) are fixed with conductive blocks, a stepped thread cylinder (7) is fixedly arranged on the outer side of the left conductive block, an internal thread cylinder (9) is threadedly installed on the outer side of the stepped thread cylinder (7), a reset spring (8) is horizontally installed in the stepped thread cylinder (7) and the internal thread cylinder (9), and an insulating cylinder is fixedly arranged on the outer side of the right conductive block, the fuse (10) is clamped at the arc-shaped temperature insulation sheet (11). A hand screw block (13) is rotatably arranged on the right side of the upper end of the protective cover (1), a first gear (14) is arranged on the lower end of the hand screw block (13), a transmission shaft (16) is horizontally arranged on the right end in the protective cover (1), and a third gear (17) and a second gear (15) are fixedly arranged on the outer left end of the transmission shaft (16).

2. A photovoltaic controller with electrical protection according to claim 1, characterized in that: The positive electrode of the photovoltaic controller body (2) is connected with the left conductive block through a spiral wire.

3. The photovoltaic controller with electrical protection according to claim 1, wherein: The rear end of the protective cover (1) is provided with a heat dissipation hole, and the front end of the protective cover (1) is provided with a plug-in port.

4. The photovoltaic controller with electrical protection according to claim 1, wherein: The left end of the fuse (10) is inserted into the internal thread cylinder (9) and is in conductive connection with the reset spring (8), the right end of the fuse (10) is inserted into the insulating cylinder and is in conductive connection with the right conductive block, and the right conductive block is connected with an external power supply through a wire.

5. The photovoltaic controller with electrical protection according to claim 1, wherein: A dismounting groove is arranged on the upper end of the protective cover (1), the dismounting groove is directly above the fuse (10), and a stepped buckle plate (12) is clamped on the dismounting groove.

6. The photovoltaic controller with electrical protection according to claim 1, wherein: The second gear (15) is in meshing transmission with the first gear (14), and the third gear (17) is in meshing transmission with the fourth gear (18).

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