Solar photovoltaic inverter

Abstract

The invention belongs to the technical field of inverter equipment, and discloses a solar photovoltaic inverter which comprises an inverter body, the upper surface of the inverter body is movably connected with a protective shell, one side of the inverter body is connected with a top cover in a clamped mode, and through cooperation of a first motor, a lead screw, a rotating rod, an expansion plate and other structures, the first motor, the lead screw, the rotating rod, the expansion plate and the like are connected with the protective shell in a clamped mode. A lead screw can be driven to rotate through arrangement of a first motor, the lead screw rotates to drive a connecting rod in threaded connection with the lead screw, so that the connecting rod can move on the lead screw, and the connecting rod can drive a rotating rod in rotating connection to rotate while moving; the rotating rod rotates and the rotating rod sleeve connected with the rotating rod can drive the expansion plate, so that the expansion plate is unfolded towards the two sides, the expansion plate is unfolded towards the two sides, hot air blown out by the fan device can be effectively and better blown out towards the two sides, and therefore the effects of adjusting the heat dissipation area of the fan device and rapidly discharging heat are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of inverter equipment, in particular to a solar photovoltaic inverter. Background Art

[0002] Solar photovoltaic inverter is one of the key devices in solar photovoltaic system. Its main function is to convert the direct current generated by photovoltaic modules into alternating current so as to connect to the grid or power local loads.

[0003] The existing solar photovoltaic inverter still has disadvantages when in use. The existing solar photovoltaic inverter will generate a large amount of heat when in use, so the heat dissipation is dissipated by the heat dissipation device. However, the existing heat dissipation device cannot speed up the heat dissipation effect by adjusting the heat dissipation area when in use, so it needs to be improved. Summary of the invention

[0004] In order to solve the problem in the above background technology that the heat dissipation area cannot be adjusted to speed up the heat dissipation, the present invention provides a solar photovoltaic inverter.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a solar photovoltaic inverter comprises an inverter body, wherein a protective shell is movably connected to the upper surface of the inverter body, a top cover is clamped on one side of the inverter body, a heat sink shell is arranged on the side of the top cover away from the protective shell, a fan device is arranged on the side of the heat sink shell close to the protective shell, a copper sheet is fixedly connected to the side of the protective shell close to the fan device, a heat pipe is fixedly connected to the side of the copper sheet away from the protective shell, a heat sink is fixedly connected to the side of the heat sink away from the copper sheet, a filter cover is fixedly connected to the side of the fan device away from the heat sink, a first motor is arranged on one side of the heat sink shell, a screw rod is rotatably connected to the output shaft end of the first motor, a connecting rod is threadedly connected to the upper surface of the screw rod, an auxiliary frame is fixedly connected to one side of the screw rod, a rotating rod is rotatably connected to the side of the connecting rod away from the screw rod, a rotating rod sleeve is rotatably connected to the upper surface of the rotating rod, and an expansion plate is fixedly connected to one side of the rotating rod sleeve.

[0006] Preferably, a spring is fixedly connected to the interior of the protective shell, and a sloped block is fixedly connected to a side of the spring away from the protective shell.

[0007] Preferably, a connecting rod is fixedly connected to one side of the top cover close to the protective shell, and the connecting rod consists of a rod body, a fixed block, and a movable block. A spring is fixedly connected to the inside of the protective shell, and the setting of the spring has the function of enabling the inclined block fixedly connected thereto to effectively clamp the rod. Through such a clamping setting, the subsequent inverter body and the heat dissipation device shell can be better disassembled. The rod consists of a rod body, a fixed block, and a movable block. When clamping, the inclined block is fixedly clamped by the fixed block on the rod. When it needs to be opened, the downward operation allows the inclined block to slide out according to the trajectory of the movable block, so that it can be quickly disassembled.

[0008] Preferably, the number of the first motor, the screw rod, the connecting rod, the rotating rod, the rotating rod sleeve and the expansion plate is set to two, and the expansion plates are located on both sides of the fan device.

[0009] Preferably, a second motor is disposed inside the housing of the heat dissipation device, and an output shaft end of the second motor is rotatably connected to a turntable.

[0010] Preferably, a side of the rotating disk away from the second motor is movably connected to a movable rod, and a side of the rotating disk close to the movable rod is fixedly connected to a fixed rod.

[0011] Preferably, the shape of the movable rod is adapted to the fixed rod, and the movable rod is composed of a sweeping rod, a semi-toothed plate, and a protrusion. A toothed plate is meshed on one side of the semi-toothed plate, and a second motor is arranged inside the heat dissipation device housing. The second motor can drive the turntable to rotate. When the turntable rotates, it can cleverly cooperate with the movable rod through the fixed rod on one side thereof. Under this cooperation, the movable rod can reciprocate. The reciprocating motion setting of the movable rod can drive the sweeping rod to effectively scrape the heat dissipation outlet on one side of the heat dissipation device housing. At the same time, the toothed plate meshed on one side of the semi-toothed plate at the bottom of the movable rod will also reciprocate under the drive of the semi-toothed plate.

[0012] Preferably, a round rod is fixedly connected to one side of the tooth plate, and the round rod is slidably connected to the connecting frame.

[0013] Preferably, heat dissipation outlets are opened on both sides of the heat dissipation device shell, and the sweeping rod is fitted with the opened heat dissipation outlets. The sweeping rod in the movable rod is fitted with the heat dissipation outlets opened on both sides of the heat dissipation device shell. When the movable rod makes reciprocating motion, the sweeping rod can comprehensively clean the heat dissipation outlets. Such cleaning operation can effectively prevent dust and other impurities from clogging the heat dissipation outlets, thereby ensuring a good heat dissipation effect.

[0014] Preferably, a display screen is provided on a side of the inverter body away from the heat sink housing, and a connection hole is fixedly connected to one side of the inverter body.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention facilitates the concentration and heat dissipation of the inverter heat through the coordination of structures such as copper sheets, heat pipes, heat sinks, and fan devices. Specifically, the arrangement of the copper sheets can efficiently transfer the heat generated by the inverter to the heat pipes, and the heat pipes play a key role in heat transfer, accurately concentrating the absorbed heat on the heat sinks. Subsequently, the fan device is started to quickly discharge the heat on the heat sinks. In this way, the excellent effect of concentrating the heat to better dissipate the heat of the inverter is achieved.

[0017] The present invention facilitates the rapid discharge of heat through the coordination of structures such as the first motor, the screw rod, the rotating rod, and the expansion plate setting. The setting of the first motor can drive the rotation of the screw rod, and the rotation of the screw rod can drive the connecting rod threaded therewith, so that the connecting rod can move on the screw rod. The movement of the connecting rod can drive the rotating rod connected to the rotating rod to rotate. The rotation of the rotating rod sleeve connected to the rotating rod can drive the expansion plate, so that the expansion plate is expanded to both sides. The expansion of the expansion plate to both sides can effectively blow the hot air blown out by the fan device to both sides, thereby achieving the effect of adjusting the heat dissipation area of ​​the fan device and quickly discharging the heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the front cross-section structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the spring structure of the present invention;

[0021] Figure 4 This is an exploded view of the heat sink of the present invention;

[0022] Figure 5 It is a schematic diagram of the screw rod structure of the present invention;

[0023] Figure 6 This is an exploded view of the screw rod of the present invention;

[0024] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0025] In the figure: 1. inverter body; 101. protective shell; 2. heat sink shell; 201. top cover; 3. spring; 4. inclined block; 5. clamping rod; 6. fan device; 7. copper sheet; 8. heat pipe; 9. heat sink; 10. filter cover; 11. first motor; 12. screw rod; 211. auxiliary frame; 13. connecting rod; 14. rotating rod; 15. rotating rod sleeve; 16. expansion plate; 17. second motor; 18. turntable; 19. movable rod; 190. sweeping rod; 191. semi-tooth plate; 192. protrusion; 20. connecting frame; 21. tooth plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 7 As shown, the present invention provides a solar photovoltaic inverter, including an inverter body 1, the upper surface of the inverter body 1 is movably connected with a protective shell 101, a top cover 201 is clamped on one side of the inverter body 1, a heat sink shell 2 is arranged on the side of the top cover 201 away from the protective shell 101, a fan device 6 is arranged on the side of the heat sink shell 2 close to the protective shell 101, a copper sheet 7 is fixedly connected to the side of the protective shell 101 close to the fan device 6, a heat pipe 8 is fixedly connected to the side of the copper sheet 7 away from the protective shell 101, and the heat pipe 8 is away from the protective shell 101. A heat sink 9 is fixedly connected to one side of the copper sheet 7, a filter cover 10 is fixedly connected to the side of the fan device 6 away from the heat sink 9, a first motor 11 is arranged on one side inside the heat dissipation device housing 2, a screw rod 12 is rotatably connected to the output shaft end of the first motor 11, a connecting rod 13 is threadedly connected to the upper surface of the screw rod 12, an auxiliary frame 211 is fixedly connected to one side of the screw rod 12, a rotating rod 14 is rotatably connected to the side of the connecting rod 13 away from the screw rod 12, a rotating rod sleeve 15 is rotatably connected to the upper surface of the rotating rod 14, and an expansion plate 16 is fixedly connected to one side of the rotating rod sleeve 15.

[0028] Through the arrangement of the copper sheet 7, the heat generated by the inverter can be transferred to the heat pipe 8 very efficiently. The copper sheet 7 plays an important bridge role in this process. With its good thermal conductivity, it quickly absorbs and conducts the heat generated by the inverter when it is working. The heat pipe 8 plays a key role in heat transfer in the entire heat dissipation system. It accurately gathers the heat absorbed from the copper sheet 7 on the heat sink 9. The heat sink 9 provides more favorable conditions for the subsequent heat dissipation process by increasing the heat dissipation area. Subsequently, the fan device 6 is started, and the strong wind force quickly discharges the heat on the heat sink 9. In this way, the excellent effect of concentrating the heat to better dissipate the heat of the inverter is achieved. This centralized heat dissipation method can effectively improve the heat dissipation efficiency and ensure that the inverter is always kept in a suitable temperature range during operation, thereby extending the service life of the inverter and improving the stability and reliability of the entire solar photovoltaic system.

[0029] At the same time, the setting of the first motor 11 can accurately drive the screw rod 12 to rotate. The first motor 11 provides a reliable power source for the rotation of the screw rod 12 with its stable power output. When the screw rod 12 rotates, it will drive the connecting rod 13 threadedly connected thereto to move on the screw rod 12. Driven by the screw rod 12, the connecting rod 13 can accurately adjust its own position. During the movement of the connecting rod 13, it will drive the rotating rod 14 connected to the rotation. As the key link of the connection, the rotating rod 14 transmits the movement of the connecting rod 13 to the rotating rod sleeve 15, and the rotating rod 14 then prompts the rotating rod sleeve connected thereto to rotate. 15 drives the expansion plate 16 to move, and the expansion plate 16 will be in a state of being expanded to both sides. This expansion can effectively blow the hot air blown out by the fan device 6 to both sides better, thereby achieving the purpose of adjusting the heat dissipation area of ​​the fan device 6 and playing a significant effect of quickly discharging heat. The movement of the expansion plate 16 makes the coverage of the heat dissipation wind wider, and can dissipate the heat more quickly, further improving the heat dissipation efficiency. The whole process realizes precise control and efficient heat dissipation of the inverter through the synergistic effect of various components, providing a strong guarantee for the stable operation of the solar photovoltaic inverter.

[0030] like Figure 2 , Figure 5 As shown, a spring 3 is fixedly connected to the inside of the protective shell 101, and a bevel block 4 is fixedly connected to the side of the spring 3 away from the protective shell 101. A connecting rod 5 is fixedly connected to the side of the top cover 201 close to the protective shell 101. The connecting rod 5 consists of a rod body, a fixed block, and a movable block. The number of the first motor 11, the screw rod 12, the connecting rod 13, the rotating rod 14, the rotating rod sleeve 15, and the expansion plate 16 is set to two, and the expansion plate 16 is located on both sides of the fan device 6.

[0031] The above scheme is adopted: the inside of the protective shell 101 is fixedly connected with a spring 3, and the setting of the spring 3 has the function of enabling the inclined block 4 fixedly connected thereto to effectively clamp the clamping rod 5. Through such a clamping setting, it is convenient for the subsequent inverter body 1 and the heat dissipation device shell 2 to be better disassembled. The clamping rod 5 is composed of a rod body, a fixed block, and a movable block. When clamping, the inclined block 4 is fixedly clamped by the fixed block on the clamping rod 5. When it needs to be opened, the inclined block 4 can slide out according to the trajectory of the movable block by pressing down, so that it can be quickly disassembled. In addition, the number of the first motor 11, the screw rod 12, the connecting rod 13, the rotating rod 14, the rotating rod sleeve 15, and the expansion plate 16 is set to two. Through such a setting of two, the effect of better dissipating heat can be achieved. The expansion plate 16 is located on both sides of the fan device 6. Such a layout facilitates the rapid discharge of heat, thereby making the entire heat dissipation system operate more efficiently, providing a strong guarantee for the stable operation of the inverter.

[0032] like Figure 5 , Figure 6 As shown, a second motor 17 is arranged inside the heat dissipation device housing 2, and the output shaft end of the second motor 17 is rotatably connected to a turntable 18, and a movable rod 19 is movably connected to the side of the turntable 18 away from the second motor 17, and a fixed rod is fixedly connected to the side of the turntable 18 close to the movable rod 19, and the shape of the movable rod 19 is adapted to the fixed rod. The movable rod 19 is composed of a sweeping rod 190, a semi-toothed plate 191, and a protrusion 192, and a toothed plate 21 is meshed on one side of the semi-toothed plate 191.

[0033] The above scheme is adopted: by setting a second motor 17 inside the heat dissipation device housing 2, the setting of the second motor 17 can drive the turntable 18 to rotate. When the turntable 18 rotates, it can cleverly cooperate with the movable rod 19 through the fixed rod on one side thereof. Under this cooperation, the movable rod 19 can reciprocate. The reciprocating motion setting of the movable rod 19 can drive the sweeping rod 190 to effectively scrape the heat dissipation outlet on one side of the heat dissipation device housing 2. At the same time, the tooth plate 21 engaged on one side of the semi-tooth plate 191 at the bottom of the movable rod 19 will also reciprocate under the drive of the semi-tooth plate 191. Such a design can ensure that the heat dissipation outlet of the heat dissipation device housing 2 remains unobstructed, and prevent the heat dissipation effect from being affected by the accumulation of impurities such as dust, thereby providing a strong guarantee for the stable operation and efficient heat dissipation of the entire solar photovoltaic inverter.

[0034] like Figure 1 , Figure 6As shown, a round rod is fixedly connected to one side of the tooth plate 21, and the round rod is slidably connected to the connecting frame 20. Heat dissipation outlets are opened on both sides of the heat dissipation device housing 2, and the sweeping rod 190 fits with the opened heat dissipation outlets. A display screen is opened on the side of the inverter body 1 away from the heat dissipation device housing 2, and a connecting hole is fixedly connected to one side of the inverter body 1.

[0035] The above scheme is adopted: the round rod fixedly connected to one side of the tooth plate 21 is slidably connected to the connecting frame 20. This design can effectively ensure the stability of the movement of the tooth plate 21. The sweeping rod 190 in the movable rod 19 fits with the heat dissipation outlets opened on both sides of the heat dissipation device shell 2. When the movable rod 19 reciprocates, the sweeping rod 190 can comprehensively clean the heat dissipation outlet. Such a cleaning operation can effectively prevent dust and other impurities from clogging the heat dissipation outlet, thereby ensuring a good heat dissipation effect. In addition, a display screen is provided on the side of the inverter body 1 away from the heat dissipation device shell 2. The display screen can clearly display information such as the working status of the inverter, which greatly facilitates the user to understand the operation status of the inverter at any time, allowing the user to timely grasp the working dynamics of the inverter, so that when problems arise, corresponding measures can be taken quickly to deal with them.

[0036] The working principle and use process of the present invention:

[0037] First, in the solar photovoltaic inverter, the inverter body 1 and the heat sink housing 2 can be quickly connected by the clamping rod 5 through the ingenious arrangement of the spring 3 and the inclined block 4. This clamping method is more convenient and provides great convenience for users during installation and disassembly. After the connection, when the inverter body 1 starts to work, heat will inevitably be generated. This heat will be quickly transferred to the protective housing 101. The copper sheet 7 on the protective housing 101 has good thermal conductivity and can efficiently absorb heat and transfer the heat to the heat pipe 8. The heat pipe 8 further transfers the heat to the heat sink 9, thereby increasing the heat dissipation area. At this time, the fan device 6 on the side of the heat sink housing 2 close to the protective housing 101 is started, and it draws in the external cold air. After being filtered by the filter cover 10, the clean cold air is blown to the heat sink 9. This process accelerates the heat dissipation of the heat sink 9. After the cold air takes away the heat on the heat sink 9, it is discharged from the heat dissipation outlets on both sides of the heat sink housing 2. While the fan device 6 is dissipating heat, the first motor 11 is started to drive the screw rod 12 to rotate. The screw rod The connecting rod 13 threadedly connected to the upper surface of the screw 12 moves with the rotation of the screw 12, and the movement of the connecting rod 13 drives the rotating rod 14 to rotate. The rotating rod sleeve 15 connected to the upper surface of the rotating rod 14 also moves accordingly, and the expansion plate 16 fixedly connected to one side of the rotating rod sleeve 15 also moves. The movement of the expansion plate 16 can adjust the flow direction and range of the wind blown by the fan device 6, which plays an important role in expanding the coverage area of ​​the heat dissipation wind and further improves the heat dissipation effect. In addition, the second motor 17 inside the heat dissipation device housing 2 can drive the turntable 18 to rotate. The turntable 1 The fixed rod on one side of the rotating disk 18 drives the movable rod 19 to move. The movable rod 19 is composed of a sweeping rod 190, a semi-toothed plate 191 and a protrusion 192. When the rotating disk 18 rotates, the movable rod 19 makes a reciprocating motion through the cooperation between the fixed rod and the movable rod 19. Since the sweeping rod 190 in the movable rod 19 fits with the heat dissipation outlets opened on both sides of the heat dissipation device housing 2, when the movable rod 19 makes a reciprocating motion, the sweeping rod 190 can clean the heat dissipation outlets. This cleaning operation effectively prevents dust and other impurities from blocking the heat dissipation outlets, thereby ensuring the continuous and stable heat dissipation effect.

[0038] In summary, the solar photovoltaic inverter realizes the functions of efficient heat dissipation, convenient installation and disassembly, and automatic cleaning of heat dissipation outlets through the synergistic effect of various components, providing a strong guarantee for the stable operation of the solar photovoltaic system.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solar photovoltaic inverter, comprising an inverter body (1), characterized in that: The upper surface of the inverter body (1) is movably connected to a protective shell (101); a top cover (201) is clamped on one side of the inverter body (1); a heat sink shell (2) is provided on the side of the top cover (201) away from the protective shell (101); a fan device (6) is provided on the side of the heat sink shell (2) close to the protective shell (101); a copper sheet (7) is fixedly connected to the side of the protective shell (101) close to the fan device (6); a heat pipe (8) is fixedly connected to the side of the copper sheet (7) away from the protective shell (101); and a heat sink (9) is fixedly connected to the side of the heat pipe (8) away from the copper sheet (7). ), a filter cover (10) is fixedly connected to the side of the fan device (6) away from the heat sink (9), a first motor (11) is arranged on one side inside the heat sink housing (2), an output shaft end of the first motor (11) is rotatably connected to a screw rod (12), an upper surface of the screw rod (12) is threadedly connected to a connecting rod (13), one side of the screw rod (12) is fixedly connected to an auxiliary frame (211), a side of the connecting rod (13) away from the screw rod (12) is rotatably connected to a rotating rod (14), an upper surface of the rotating rod (14) is rotatably connected to a rotating rod sleeve (15), and one side of the rotating rod sleeve (15) is fixedly connected to an expansion plate (16).

2. The solar photovoltaic inverter according to claim 1, characterized in that: A spring (3) is fixedly connected to the interior of the protective shell (101), and a sloped block (4) is fixedly connected to the side of the spring (3) away from the protective shell (101).

3. The solar photovoltaic inverter according to claim 1, characterized in that: A connecting rod (5) is fixedly connected to one side of the top cover (201) close to the protective housing (101), and the connecting rod (5) is composed of a rod body, a fixed block, and a movable block.

4. The solar photovoltaic inverter according to claim 1, characterized in that: The number of the first motor (11), the screw rod (12), the connecting rod (13), the rotating rod (14), the rotating rod sleeve (15), and the expansion plate (16) is set to two, and the expansion plate (16) is located on both sides of the fan device (6).

5. The solar photovoltaic inverter according to claim 1, characterized in that: A second motor (17) is arranged inside the heat dissipation device housing (2), and an output shaft end of the second motor (17) is rotatably connected to a rotating disk (18).

6. The solar photovoltaic inverter according to claim 5, characterized in that: A side of the rotating disk (18) away from the second motor (17) is movably connected to a movable rod (19), and a side of the rotating disk (18) close to the movable rod (19) is fixedly connected to a fixed rod.

7. The solar photovoltaic inverter according to claim 6, characterized in that: The shape of the movable rod (19) is matched with that of the fixed rod. The movable rod (19) is composed of a sweeping rod (190), a semi-toothed plate (191), and a protrusion (192). One side of the semi-toothed plate (191) is meshed with a toothed plate (21).

8. The solar photovoltaic inverter according to claim 7, characterized in that: A round rod is fixedly connected to one side of the tooth plate (21), and the round rod is slidably connected to the connecting frame (20).

9. The solar photovoltaic inverter according to claim 7, characterized in that: Heat dissipation outlets are provided on both sides of the heat dissipation device housing (2), and the sweeping rod (190) fits in the heat dissipation outlets.

10. The solar photovoltaic inverter according to claim 1, characterized in that: A display screen is provided on a side of the inverter body (1) away from the heat sink housing (2), and a connection hole is fixedly connected to one side of the inverter body (1).

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