Efficient photovoltaic electrode device optimization system
By introducing a multi-layer heat dissipation design and an automated dust cleaning system into the photovoltaic optimizer, the problem of insufficient heat dissipation in the photovoltaic optimizer is solved, achieving efficient heat dissipation and low maintenance, and ensuring the stable operation of photovoltaic electrode devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NORTHWEST ENGINEERING CORPORATION LIMITED
- Filing Date
- 2025-12-31
- Publication Date
- 2026-04-21
AI Technical Summary
Existing photovoltaic optimizers rely on a single external heat sink fin for heat dissipation, which makes it difficult to dissipate heat quickly, resulting in excessively high temperatures that affect MPPT tracking accuracy and energy conversion efficiency, and may even cause device failure.
It adopts a multi-layer heat dissipation design, including an internal through-type heat dissipation slot and an external heat dissipation mechanism. Combined with fan components and filter plates, it forms a directional airflow channel. With the help of a control motor-driven movable plate and brush plate for dust cleaning, it achieves active and passive heat dissipation and enhances heat dissipation efficiency.
It effectively solves the problem of insufficient heat dissipation in photovoltaic optimizers, ensures efficient operation of devices, reduces maintenance difficulty, and improves system reliability and lifespan.
Smart Images
Figure CN121908517A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of photovoltaic electrode optimization technology, and in particular to a high-efficiency photovoltaic electrode device optimization system. Background Technology
[0002] With the continued growth of global demand for clean energy, photovoltaic technology, as the core direction of the renewable energy field, has made power generation efficiency and long-term stability key goals for industry development. As the core component for the collection and transmission of photogenerated carriers in the photovoltaic system, the performance of photovoltaic electrode devices directly determines the energy conversion efficiency of photovoltaic modules. To solve the power mismatch problem in scenarios such as partial shading and uneven illumination, photovoltaic optimizers have emerged. By performing independent maximum power point tracking (MPPT) control on individual or string-level modules, they can effectively reduce power loss and improve the overall power generation of the system.
[0003] However, the current mainstream photovoltaic optimizer heat dissipation solutions rely heavily on a single external heat dissipation fin. This involves placing metal fins on the outside of the device casing and using natural convection to dissipate heat. This passive heat dissipation relies solely on increasing the surface area, resulting in a long heat conduction path and high thermal resistance. It is difficult to quickly remove the large amount of heat generated under high power conditions, causing the internal temperature of the device to easily exceed the safe operating threshold of electronic components. This leads to limited heat dissipation efficiency and can also cause reduced MPPT tracking accuracy, decreased energy conversion efficiency, and even device failure. Summary of the Invention
[0004] Purpose of the invention: The purpose of this invention is to provide a high-efficiency photovoltaic electrode device optimization system to solve the problem of insufficient heat dissipation in existing photovoltaic optimizers.
[0005] Technical solution: A high-efficiency photovoltaic electrode device optimization system includes an optimizer, the front surface of which is provided with a wire outlet, a cable is provided on the outside of the wire outlet, the upper surface of which is provided with multiple heat dissipation fins, the inside of which the left and right sides are provided with through-type heat dissipation slots, and the outside of which is provided with a heat dissipation mechanism.
[0006] The heat dissipation mechanism includes a U-shaped shell, with through-type ventilation slots on both the left and right sides of the U-shaped shell. Hollow plates are fixedly connected to the inner walls of the two ventilation slots together with the inner walls of the U-shaped shell. Fan assemblies are provided on the inner walls of the two hollow plates, and filter plates are provided on the inner walls of the two hollow plates and on the opposite sides of the two fan assemblies.
[0007] Furthermore, the rear surface of the optimizer is fixedly connected with a hook, and the upper surface of the hook has a through-type slot.
[0008] Furthermore, a fixing plate is fixedly connected to the inner side of the U-shaped shell, and multiple through-holes are opened on the outer side wall of the fixing plate. Multiple threaded holes are opened on the outer side wall of the optimizer. The fixing plate and the optimizer are fixed by bolts passing through the corresponding through-holes and threaded holes.
[0009] Furthermore, the inner rear surface of the U-shaped shell is symmetrically connected to reciprocating lead screws via a rotating shaft. The front ends of the two reciprocating lead screws pass through the two hollow plates respectively. The outer walls of the two reciprocating lead screws and the interior of the two hollow plates are threaded with movable plates. The outer walls of the two movable plates are slidably connected to the inner walls of the two hollow plates respectively. Brush plates are detachably connected to the opposite sides of the two movable plates. The opposite sides of the two brush plates are in contact with the opposite sides of the two filter plates respectively.
[0010] Furthermore, a sealing groove is provided on the outer side of the optimizer, and a sealing gasket is provided on the inner side wall of the fixing plate, with the outer side wall of the sealing gasket contacting the inner side wall of the sealing groove.
[0011] Furthermore, pulley 1 is fixedly connected to the rear of the outer side wall of each of the two reciprocating lead screws, and a control motor is fixedly connected to the inner rear surface of the U-shaped shell between the two pulley 1s. A pulley 2 is fixedly connected to the front end of the output shaft of the control motor, and a transmission belt is connected to the outer side wall of the two pulley 1s and the outer side wall of the pulley 2s.
[0012] Furthermore, the optimizer has a through slot on its inner rear surface, and a temperature sensor is fixedly connected to the inner rear of the U-shaped shell, with the front end of the temperature sensor passing through the slot.
[0013] Furthermore, both the inner front and inner rear surfaces of the two hollow plates are provided with through-type movable slots, and the front and rear surfaces of the two filter plates pass through multiple movable slots respectively. An L-shaped limiting rod is fixedly connected to the opposite side of the two filter plates and in front of the two hollow plates.
[0014] Furthermore, the front ends of the two reciprocating lead screws pass through the two hollow plates respectively, and are fixedly connected to cam columns. The outer side walls of the two cam columns are provided with cam grooves, and the top ends of the two L-shaped limiting rods are slidably connected to the interior of the two cam grooves respectively.
[0015] Beneficial effects: The present invention achieves initial passive heat dissipation by increasing the contact area through the heat dissipation fins of the optimizer itself. The internal through-type heat dissipation groove can accelerate the internal air circulation, while the external heat dissipation mechanism passes through the front end of the two hollow plates respectively, and the front end of the two hollow plate shells and ventilation grooves form a directional air channel with the hollow plates. After the fan assembly is started, it can form convection, which can quickly remove the heat inside and on the surface of the optimizer. This effectively solves the problem of insufficient heat dissipation of a single heat dissipation fin in the prior art, avoids the performance degradation of the optimizer due to excessive temperature, and ensures the efficient operation of photovoltaic electrode devices.
[0016] This invention controls the periodic starting of a motor to drive the pulley to rotate, which in turn drives two reciprocating screws to rotate synchronously. This drives a movable plate with a brush plate to reciprocate and wipe the filter plate. At the same time, it drives the cam column to rotate. The cam groove and the front end of the cam pass through two hollow plates L respectively, and the front end of the cam passes through two hollow plate-shaped limit rods respectively, controlling the filter plate to move back and forth along the movable groove. The wiping action of the brush plate and the movement of the filter plate work together to thoroughly clean the dust and impurities attached to the outside of the filter plate, avoiding dust blockage that affects the ventilation and heat dissipation effect. At the same time, it eliminates the need for frequent manual disassembly and cleaning, reducing the difficulty of operation and maintenance.
[0017] In this invention, the heat dissipation mechanism achieves a stable connection with the optimizer through the cooperation of a fixing plate, insertion hole, threaded hole and bolt. During disassembly, simply unscrew the bolts to remove the front end of the device, which passes through the two hollow plate U-shaped shells respectively. This facilitates the maintenance or upgrading of components such as the fan assembly and filter plate. At the same time, the cooperation between the sealing gasket and the sealing groove can effectively prevent dust and moisture from entering the device, enhancing the reliability of outdoor use. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0019] Figure 2 This is a rear view schematic diagram of the heat dissipation-free mechanism and the hanging ear of the present invention;
[0020] Figure 3 This is a schematic diagram of the overall structure of the heat dissipation mechanism of the present invention;
[0021] Figure 4 This is a top view of the overall structure of the heat dissipation mechanism of the present invention.
[0022] Figure 5 This is a side view structural schematic diagram of the cross-section of the hollow plate and cam column of the present invention;
[0023] Figure 6 This is a schematic diagram of the overall structure of the hollow plate of the present invention;
[0024] Figure 7 This is the present invention. Figure 4A magnified structural diagram of point A in the middle.
[0025] In the diagram: 1. Optimizer; 2. Outlet terminal; 3. Cable; 4. Heat sink fins; 5. Heat sink groove; 6. Heat dissipation mechanism; 7. Hanging ear; 8. Slot; 9. Sealing groove; 10. Sealing gasket; 11. Slot; 12. Temperature sensor; 601. U-shaped shell; 602. Ventilation groove; 603. Hollow plate; 604. Fan assembly; 605. Filter plate; 606. Fixing plate; 607. Insertion hole; 608. Threaded hole; 609. Reciprocating screw; 610. Movable plate; 611. Brush plate; 612. Belt pulley one; 613. Control motor; 614. Belt pulley two; 615. Drive belt; 616. Movable groove; 617. L-shaped limit rod; 618. Cam column; 619. Cam groove. Detailed Implementation
[0026] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] Example
[0028] like Figure 1 As shown, a hook 7 is fixedly connected to the rear surface of the optimizer 1, and a through slot 8 is provided on the upper surface of the hook 7.
[0029] During installation, simply align the slot 8 with the adapter strip on the photovoltaic bracket or mounting frame and snap it down to complete the initial fixation of the optimizer 1. Positioning can be achieved without additional tools, greatly simplifying the installation process and improving construction efficiency. At the same time, the structural design of the slot 8 ensures that the optimizer 1 is firmly attached to the mounting surface after installation, avoiding loosening due to vibration or external force, thus balancing installation convenience and connection reliability.
[0030] like Figures 1-7 As shown, a high-efficiency photovoltaic electrode device optimization system is provided, including an optimizer 1. The front surface of the optimizer 1 is provided with a wire outlet 2, and a cable 3 is provided on the outside of the wire outlet 2. The upper surface of the optimizer 1 is provided with multiple heat dissipation fins 4. The inside of the optimizer 1 has through-type heat dissipation slots 5 on the left and right sides. The outside of the optimizer 1 is provided with a heat dissipation mechanism 6. The heat dissipation mechanism 6 includes a U-shaped shell 601. The left and right sides of the U-shaped shell 601 have through-type ventilation slots 602. The inner sidewalls of the two ventilation slots 602 are fixedly connected to the inner sidewalls of the U-shaped shell 601 with hollow plates 603. The inner sidewalls of the two hollow plates 603 are provided with fan assemblies 604. The inner sidewalls of the two hollow plates 603 and the opposite sides of the two fan assemblies 604 are provided with filter plates 605.
[0031] In use, the optimizer 1 transmits power and signals to the photovoltaic module via the cable 3 connected to the output terminal 2. Multiple heat dissipation fins 4 on its upper surface provide initial passive heat dissipation by increasing the contact area with air. Simultaneously, the through-type heat dissipation slots 5 on the left and right sides accelerate internal airflow, forming a highly efficient heat dissipation system in conjunction with the external heat dissipation mechanism 6. The U-shaped shell 601 of the heat dissipation mechanism 6 covers the optimizer 1. The ventilation slots 602 on the left and right sides, together with the hollow plate 603, form directional airflow channels. After the fan assembly 604 inside the hollow plate 603 is activated... Air can be drawn in from the outside and filtered out by the filter plate 605. Then, it forms convection with the heat dissipation slot 5 of the optimizer 1 through the ventilation slot 602, which quickly removes the heat inside and on the surface of the optimizer 1. This design that combines active and passive heat dissipation can significantly improve heat dissipation efficiency and prevent the optimizer 1 from degrading due to excessive internal temperature. At the same time, the filter plate 605 can prevent dust from entering and affecting the operation of the device. The U-shaped shell 601 can also provide additional protection for the optimizer 1, enhance its reliability in complex outdoor environments, and thus ensure the continuous and efficient operation of the photovoltaic electrode device.
[0032] like Figure 2 and Figure 3 As shown, a fixing plate 606 is fixedly connected to the inner side of the U-shaped shell 601. The outer side wall of the fixing plate 606 has multiple through-holes 607, and the outer side wall of the optimizer 1 has multiple threaded holes 608. The fixing plate 606 and the optimizer 1 are fixed by bolts passing through the corresponding through-holes 607 and threaded holes 608.
[0033] The fixing plate 606 on the inner side of the U-shaped shell 601 is aligned with the threaded hole 608 on the outer side of the optimizer 1 through the insertion hole 607 on it, and then fixed by bolts, so that the heat dissipation mechanism 6 and the optimizer 1 form a solid connection. When it is necessary to maintain the fan assembly 604 or the filter plate 605, the U-shaped shell 601 can be removed from the optimizer 1 by simply unscrewing the bolts. The internal components can be quickly accessed without complicated operations, which facilitates subsequent maintenance work, greatly shortens maintenance time, reduces operation and maintenance costs, and improves the adaptability and service life of the system.
[0034] like Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, the inner rear surface of the U-shaped shell 601 is symmetrically connected to reciprocating screws 609 via a rotating shaft. The front ends of the two reciprocating screws 609 pass through two hollow plates 603 respectively. The outer walls of the two reciprocating screws 609 and inside the two hollow plates 603 are threadedly connected to movable plates 610. The outer walls of the two movable plates 610 are slidably connected to the inner walls of the two hollow plates 603 respectively. The opposite sides of the two movable plates 610 are detachably connected to brush plates 611. The opposite sides of the two brush plates 611 are in contact with the opposite sides of the two filter plates 605 respectively.
[0035] Two reciprocating lead screws 609 are fixedly connected to the rear of the outer side walls of each of the two reciprocating lead screws 609. A control motor 613 is fixedly connected to the inner rear surface of the U-shaped shell 601 between the two reciprocating lead screws 612. A second pulley 614 is fixedly connected to the front end of the output shaft of the control motor 613. The outer side walls of the two reciprocating lead screws 612 and the outer side walls of the second pulley 614 are connected to a drive belt 615.
[0036] When it is necessary to clean the dust adhering to the outside of the filter plate 605, the control motor 613 starts periodically, and its output shaft drives the pulley 614 to rotate. Through the transmission belt 615, it synchronously drives the two pulleys 612 and the reciprocating screw 609 to rotate. The outer side of the pulley and the inner side of the transmission belt 615 are respectively provided with tooth blocks and grooves to ensure smooth transmission. When the two reciprocating screws 609 rotate, they control the two movable plates 610 to slide back and forth along the inner sidewalls of the two hollow plates 603, thereby driving the brush plate 611 to wipe back and forth on the surface of the filter plate 605, removing the dust on the filter plate 605, avoiding dust clogging the filter plate 605 and affecting the ventilation efficiency, ensuring that the fan assembly 604 can continuously draw in sufficient air to participate in heat dissipation, maintaining the efficient operation of the heat dissipation mechanism 6, further ensuring the heat dissipation effect of the optimizer 1, and reducing the problem of reduced heat dissipation capacity caused by dust accumulation on the filter plate 605.
[0037] like Figure 2 and Figure 3 As shown, a sealing groove 9 is provided on the outer side of the optimizer 1, and a sealing gasket 10 is provided on the inner side wall of the fixing plate 606. The outer side wall of the sealing gasket 10 is in contact with the inner side wall of the sealing groove 9.
[0038] When the fixing plate 606 is fixed to the optimizer 1 by bolts, the sealing gasket 10 is squeezed and fills the gap of the sealing groove 9, forming a reliable sealing structure. This effectively prevents external dust and moisture from entering the device through the connection gap between the fixing plate 606 and the optimizer 1, avoiding short circuits or performance degradation of internal electronic components due to moisture or dust accumulation, ensuring the stability of the optimizer 1's internal operation, and further enhancing the protection capability of the entire system.
[0039] like Figure 2 and Figure 3 As shown, a through slot 11 is provided on the inner rear surface of the optimizer 1, and a temperature sensor 12 is fixedly connected to the inner rear of the U-shaped shell 601, with the front end of the temperature sensor 12 passing through the slot 11.
[0040] The through slot 11 on the rear surface of the optimizer 1 allows the front end of the temperature sensor 12 inside the rear of the U-shaped shell 601 to pass through, enabling the temperature sensor 12 to directly contact the internal environment of the optimizer 1 and monitor its internal temperature changes in real time and accurately. When the temperature exceeds the preset threshold, it can promptly trigger the fan assembly 604 in the heat dissipation mechanism 6 to enhance its operation or control the motor 613 to start cleaning the filter plate 605, thereby realizing dynamic heat dissipation regulation based on the actual temperature. This avoids wasting heat dissipation resources and ensures that the optimizer 1 is always within a suitable operating temperature range, further improving the intelligence and efficiency of the heat dissipation system.
[0041] like Figures 4-7 As shown, both the inner front and inner rear surfaces of the two hollow plates 603 are provided with through-type movable slots 616. The front and rear surfaces of the two filter plates 605 pass through multiple movable slots 616 respectively. The opposite sides of the two filter plates 605 and the front of the two hollow plates 603 are fixedly connected with L-shaped limiting rods 617. The front ends of the two reciprocating screws 609 pass through the two hollow plates 603 respectively and are fixedly connected with cam columns 618. The outer side walls of the two cam columns 618 are provided with cam grooves 619. The top ends of the two L-shaped limiting rods 617 are slidably connected to the interior of the two cam grooves 619 respectively.
[0042] When the two reciprocating screws 609 rotate, they synchronously drive the cam column 618 at the front end to rotate. The cam groove 619 on the outer side of the cam column 618 will slide with the top of the L-shaped limit rod 617, driving the L-shaped limit rod 617 to drive the filter plate 605 to reciprocate along the movable groove 616 on the front and rear surfaces inside the hollow plate 603. At the same time, the movable plate 610 will also rotate with the reciprocating screws 609, driving the brush plate 611 to reciprocate and slide to wipe the filter plate 605. The active reciprocating movement of the filter plate 605 and the wiping action of the brush plate 611 work together to more thoroughly remove the dust and impurities attached to the outer side of the filter plate 605, avoid dust residue on the surface of the filter plate 605, further improve the cleaning effect of the filter plate 605, ensure that the ventilation channel is always unobstructed, ensure the continuous and stable heat dissipation efficiency of the heat dissipation mechanism 6, and thus maintain the efficient operation of the optimizer 1.
[0043] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.
Claims
1. A high-efficiency photovoltaic electrode device optimization system, comprising an optimizer (1), characterized in that: The optimizer (1) has a cable outlet (2) on its front surface, a cable (3) on the outside of the cable outlet (2), a plurality of heat dissipation fins (4) on its upper surface, a through heat dissipation slot (5) on the left and right sides of the inside of the optimizer (1), and a heat dissipation mechanism (6) on the outside of the optimizer (1). The heat dissipation mechanism (6) includes a U-shaped shell (601), and through ventilation slots (602) are provided on the left and right sides of the U-shaped shell (601). Hollow plates (603) are fixedly connected to the inner walls of the two ventilation slots (602) together with the inner walls of the U-shaped shell (601). Fan assemblies (604) are provided on the inner walls of the two hollow plates (603). Filter plates (605) are provided on the inner walls of the two hollow plates (603) and on the opposite sides of the two fan assemblies (604).
2. The high-efficiency photovoltaic electrode device optimization system according to claim 1, characterized in that: The rear surface of the optimizer (1) is fixedly connected with a hook (7), and the upper surface of the hook (7) is provided with a through slot (8).
3. The high-efficiency photovoltaic electrode device optimization system according to claim 1, characterized in that: A fixing plate (606) is fixedly connected to the inner side of the U-shaped shell (601). The outer side wall of the fixing plate (606) is provided with multiple through-holes (607). The outer side wall of the optimizer (1) is provided with multiple threaded holes (608). The fixing plate (606) and the optimizer (1) are fixed by bolts passing through the corresponding through-holes (607) and threaded holes (608).
4. The high-efficiency photovoltaic electrode device optimization system according to claim 1, characterized in that: The U-shaped shell (601) has reciprocating screws (609) symmetrically connected to its inner rear surface via a rotating shaft. The front ends of the two reciprocating screws (609) pass through the two hollow plates (603) respectively. The outer walls of the two reciprocating screws (609) and inside the two hollow plates (603) are threadedly connected to movable plates (610). The outer walls of the two movable plates (610) are slidably connected to the inner walls of the two hollow plates (603) respectively. The opposite sides of the two movable plates (610) are detachably connected to brush plates (611). The opposite sides of the two brush plates (611) are in contact with the opposite sides of the two filter plates (605) respectively.
5. The high-efficiency photovoltaic electrode device optimization system according to claim 3, characterized in that: The optimizer (1) has a sealing groove (9) on its outer side, and the inner wall of the fixing plate (606) is provided with a sealing gasket (10), and the outer wall of the sealing gasket (10) is in contact with the inner wall of the sealing groove (9).
6. The high-efficiency photovoltaic electrode device optimization system according to claim 4, characterized in that: A pulley (612) is fixedly connected to the rear of the outer side wall of each of the two reciprocating lead screws (609). A control motor (613) is fixedly connected to the inner rear surface of the U-shaped shell (601) between the two pulleys (612). A pulley (614) is fixedly connected to the front end of the output shaft of the control motor (613). A transmission belt (615) is connected to the outer side wall of the two pulleys (612) and the outer side wall of the pulley (614).
7. The high-efficiency photovoltaic electrode device optimization system according to claim 1, characterized in that: The optimizer (1) has a through slot (11) on its inner rear surface. A temperature sensor (12) is fixedly connected to the inner rear of the U-shaped shell (601). The front end of the temperature sensor (12) passes through the slot (11).
8. The high-efficiency photovoltaic electrode device optimization system according to claim 4, characterized in that: Both of the two hollow plates (603) have through-type movable grooves (616) on their inner front and inner rear surfaces. The front and rear surfaces of the two filter plates (605) pass through multiple movable grooves (616). An L-shaped limiting rod (617) is fixedly connected to the opposite sides of the two filter plates (605) and in front of the two hollow plates (603).
9. The high-efficiency photovoltaic electrode device optimization system according to claim 8, characterized in that: The front ends of the two reciprocating lead screws (609) pass through the two hollow plates (603) respectively, and are fixedly connected to cam columns (618). The outer side walls of the two cam columns (618) are provided with cam grooves (619). The top ends of the two L-shaped limiting rods (617) are slidably connected to the interior of the two cam grooves (619) respectively.