A photovoltaic inverter

Abstract

An embodiment of the present invention discloses a photovoltaic inverter, which includes an inverter main body and a power regulator. The power regulator is detachably fixed to the inverter main body through a fixing component; the interior of the inverter main body includes a coolant circulation tank; the photovoltaic inverter includes a cooling component, and the cooling component includes a coolant storage box, a first pipeline communicated with the liquid inlet end of the coolant circulation tank, and a second pipeline communicated with the liquid outlet end of the coolant circulation tank; the other end of the first pipeline is connected to the liquid outlet of the coolant storage box through a pump body, the other end of the second pipeline is connected to the liquid inlet of the coolant storage box, and the coolant storage box, the first pipeline, the coolant circulation tank and the second pipeline form a coolant circulation loop, which is configured to cool down the inverter main body by the coolant flowing into the coolant circulation tank. It has the advantages of simple structure, convenient use, easy to move, good cooling effect, and convenient disassembly and replacement of the power regulator.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic inverter devices. More specifically, it relates to a photovoltaic inverter. Background Art

[0002] A photovoltaic inverter (PV inverter or solar inverter) can convert the variable DC voltage generated by photovoltaic (PV) solar panels into AC power at the commercial power frequency, which can be fed back into the commercial power transmission system or used for an off-grid power grid.

[0003] The existing photovoltaic inverters have the following deficiencies when in use

[0004] 1. When in use, the power adjustment device is integrated with the photovoltaic inverter and cannot be replaced with a high-power device according to requirements, affecting the use efficiency of the photovoltaic inverter;

[0005] 2. When in use, the photovoltaic inverter is generally fixed at the destination position by a bracket, so it needs to be carried as a whole when moving, resulting in inconvenient movement;

[0006] 3. When in use, the cabinet of the photovoltaic inverter dissipates heat through heat dissipation holes. In this way, external dust easily enters the interior of the photovoltaic inverter cabinet directly through the heat dissipation holes, affecting the service life of the internal components of the photovoltaic inverter. Therefore, there is an urgent need for a device to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a photovoltaic inverter to solve the problems raised in the above background art.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] A photovoltaic inverter, comprising:

[0010] Comprising an inverter main body and a power regulator, the power regulator is detachably fixed to the side wall of the inverter main body through a fixing component;

[0011] The interior of the inverter main body includes a coolant circulation tank;

[0012] The photovoltaic inverter further includes a cooling component, the cooling component includes a coolant storage box, a first pipeline communicated with the liquid inlet end of the coolant circulation tank, and a second pipeline communicated with the liquid outlet end of the coolant circulation tank;

[0013] The other end of the first pipeline is connected to the liquid outlet of the coolant storage box through a pump body, and the other end of the second pipeline is connected to the liquid inlet of the coolant storage box. The coolant storage box, the first pipeline, the coolant circulation tank, and the second pipeline form a coolant circulation loop, which is configured to cool down the inverter body by the coolant flowing into the coolant circulation tank.

[0014] In addition, a preferred solution is that the cooling assembly further includes a cooling pipe and a fan arranged corresponding to the cooling pipe;

[0015] One end of the cooling pipe is connected to the outlet of the first pipeline, and the other end is communicated with the liquid inlet end of the coolant circulation tank through a third pipeline;

[0016] The fan is fixedly combined on the inverter body and is configured to dissipate heat from the coolant inside the cooling pipe to ensure the cooling effect of the coolant.

[0017] In addition, a preferred solution is that the fixing assembly includes two connecting rods slidably connected to the inverter body, and the two connecting rods can move closer to or away from each other;

[0018] The two connecting rods are connected by a first spring;

[0019] The connecting rod includes a main body portion fixedly combined with the first spring and a connecting portion formed by extending downward from the end of the main body portion away from the first spring;

[0020] The connecting portion includes a connecting column protruding toward the side close to the power regulator, and the connecting column is configured to connect the inverter body and the power regulator so that the power regulator is fixed on the inverter body.

[0021] In addition, a preferred solution is that the inverter body includes a fixed frame, and the power regulator is detachably fixed inside the fixed frame through a fixing assembly;

[0022] The fixing assembly is arranged on the outside of the fixed frame;

[0023] The side walls of the fixed frame and the side walls of the power regulator both include connection holes, and the connection holes are correspondingly arranged in cooperation with the connecting columns. The connecting columns are configured to pass through the connection holes of the fixed frame and the power regulator to fixedly connect the power regulator and the inverter body.

[0024] In addition, a preferred solution is that the inverter body includes moving wheels, and the moving wheels are arranged on the inverter body through belt gear shafts;

[0025] The moving wheels are configured to rotate driven by the belt gear shafts to facilitate the movement of the photovoltaic inverter.

[0026] In addition, a preferred solution is that the photovoltaic inverter further includes a stopping component, and the stopping component is configured to achieve stopping of the moving wheel;

[0027] The stop assembly comprises:

[0028] A movable rod with a rack at one end;

[0029] a second spring connecting the two movable rods;

[0030] an electromagnet disposed above the second spring; and

[0031] Magnetic metal plates located on opposite sides of the electromagnet;

[0032] The stop assembly includes two movable rods, the racks of the two movable rods are respectively engaged with a gear shaft, and the other ends of the two movable rods are connected by a second spring;

[0033] The magnetic metal plates are respectively fixed on the two movable rods. When the electromagnet is energized, the two movable rods can move close to each other under the action of the electromagnetic force.

[0034] In addition, a preferred solution is that the stop assembly further includes a hollow block, and the electromagnet is fixed to the top of the hollow block;

[0035] The second spring is located inside the hollow block, the movable rod is movably connected to the hollow block, and the magnetic metal plate is located outside the hollow block.

[0036] In addition, a preferred solution is that the stop assembly further includes a handle and a trigger switch provided on the handle, and the trigger switch is configured to control the start and stop of the electromagnet.

[0037] In addition, a preferred solution is that the top of the inverter body includes a rain shield.

[0038] In addition, a preferred solution is that the top end of the coolant storage box includes a liquid infusion tube, and the end of the liquid infusion tube is provided with a sealing cover.

[0039] The beneficial effects of the present invention are as follows:

[0040] In view of the technical problems existing in the prior art, an embodiment of the present application provides a photovoltaic inverter. By setting a cooling component, a coolant storage box, a first pipeline, a cooling pipe, a third pipeline, a coolant circulation tank, and a second pipeline form a coolant circulation loop. The coolant flowing into the coolant circulation tank cools down the inverter main body to ensure the internal operating temperature. During cooling, the entire inverter main body is in a relatively sealed state to prevent external dust from entering the interior of the inverter main body and affecting the service life of the internal components of the inverter main body. In addition, the combined use of the fan and the cooling pipe also ensures the cooling effect of the coolant.

[0041] By setting a fixing component, the power regulator can be disassembled and replaced, and different power regulators can be installed, improving the applicable range of the photovoltaic inverter and achieving better use effects.

[0042] By setting a stopping component and cooperating with the moving wheels and the belt gear shaft, the overall photovoltaic inverter is convenient to move. When it is moved to the target position, the stopping component can fix the position of the belt gear shaft, making the moving wheels fixed and not rotating, facilitating the fixed use of the photovoltaic inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The following further describes in detail the specific embodiments of the present invention with reference to the drawings.

[0044] Figure 1 It is a schematic diagram of the overall structure of the photovoltaic inverter provided by the embodiment of the present invention.

[0045] Figure 2 It is a cross-sectional view of the photovoltaic inverter provided by the embodiment of the present invention.

[0046] Figure 3 It is Figure 1 an enlarged view of part A in

[0047] Figure 4 It is a schematic diagram of the structure of the stopping component provided by the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0048] The following further describes the present invention in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present invention and not for limiting the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention are shown in the drawings rather than all the structures.

[0049] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0051] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0052] To overcome the defects existing in the prior art, an embodiment of the present invention provides a photovoltaic inverter, which combines Figures 1-4 As shown, the photovoltaic inverter includes an inverter main body 1, a power regulator 2, a fixing component, a cooling component, and a stopping component. The power regulator 2 is detachably fixed to the side wall of the inverter main body 1 through the fixing component.

[0053] In this embodiment, as Figure 1 and Figure 3As shown, a fixed frame 3 is welded and fixed to one side of the inverter main body 1, and the power regulator 2 is movably clamped inside the fixed frame 3 through a fixing component. The fixing component is arranged on the outer side of the fixed frame 3 and is used to fix the power regulator 2 to the inverter main body 1, and can facilitate the disassembly of the power regulator 2, can install power regulators of different sizes, and improve the usage range of the inverter. The fixing component includes connecting rods 41 and a first spring 42. The number of the connecting rods 41 is two. The two connecting rods 41 are arranged oppositely and are respectively slidably connected to the inverter main body 1. The two connecting rods 41 can move closer to or away from each other. Specifically, a sliding groove 43 is formed on the side wall of the inverter main body 1. A slider 44 is welded and fixed to the side of the connecting rod 41 close to the inverter main body 1. The slider 44 is movably clamped in the sliding groove 43, so that the connecting rod 41 is slidably connected to the inverter main body 1. The connecting rod 41 can slide along the long side direction of the inverter main body 1, and the two connecting rods 41 move closer to or away from each other.

[0054] The first spring 42 is located between the two connecting rods 41 and is respectively fixedly connected to the ends of the two connecting rods 41. When the fixing component fixes the power regulator 2 inside the fixed frame 3, the first spring 42 is in a stretched state.

[0055] The connecting rod 41 includes a main body portion fixedly connected to the first spring 42 and a connecting portion extending downward from the end of the main body portion away from the first spring 42. As Figure 3 shown, the main body portion is the horizontal part of the connecting rod 41, and the connecting portion is the vertical part of the connecting rod 41. The slider 44 is fixedly connected to the side of the main body portion close to the inverter main body 1. A connecting column 45 protrudes from the side of the connecting portion close to the power regulator 2. The connecting column 45 is used to connect the fixed frame 3 and the power regulator 2, so that the power regulator 2 is fixed inside the fixed frame 3. Correspondingly, connecting holes (not shown in the figure) that fit the connecting column 45 are formed on the left and right sides of the power regulator 2 and the left and right sides of the fixed frame 3. The connecting holes on the power regulator 2 and the connecting holes on the fixed frame 3 overlap. The connecting column 45 can pass through the adjusting holes of the power regulator 2 and the adjusting holes of the fixed frame 3 at the same time to connect and fix the fixed frame 3 and the power regulator 2, realizing the fixation of the power regulator 2. Since the first spring 5 is in a stretched state at this time, the connecting columns 45 of the two connecting rods 41 are tightly clamped in the connecting holes and will not automatically come out, realizing the stable fixation of the power regulator 2. When it is necessary to remove and replace the power regulator 2, slide the connecting rod 41 along the sliding groove 43 to make the two connecting rods 41 move away from each other, so that the first spring 42 is further stretched. At this time, the connecting column 45 of the connecting rod 41 disengages from the connecting hole, and the power regulator 2 can be removed for replacement. This fixing component can facilitate the installation of different power regulators and improve the applicable range of the photovoltaic inverter.

[0056] In one embodiment, as Figure 1 and Figure 2 shown, the cooling component is used to cool down the inverter main body 1. The cooling component includes a coolant storage box 51, a first pipeline 52 and a second pipeline 53. The coolant storage box 51 is welded and fixed to one side of the inverter main body 1, and stores coolant inside. A pump body 54 is fixed to the top end of the coolant storage box 51 through a mounting bracket. The first pipeline 52 serves as an outlet pipeline and is connected to the outlet of the coolant storage box 51 through the pump body 54. The second pipeline 53 serves as a return pipeline and is connected to the inlet of the coolant storage box 51. The interior of the inverter main body 1 includes a coolant circulation tank 11. The other end of the first pipeline 52 is connected to the inlet end of the coolant circulation tank 11, and the second pipeline 53 is connected to the outlet end of the coolant circulation tank 11. When it is necessary to cool down the inverter main body 1, the pump body 54 is started. The pump body 54 discharges the coolant in the coolant storage box 51 through the first pipeline 52 and enters the coolant circulation tank 11, and then returns to the coolant storage box 51 through the second pipeline 53. The coolant storage box 51, the first pipeline 52, the coolant circulation tank 11 and the second pipeline 53 form a coolant circulation loop. The inverter main body 1 is cooled down by the coolant flowing into the coolant circulation tank 11 to ensure the internal operating temperature. During cooling, the entire inverter main body 1 is in a relatively sealed state to prevent external dust from entering the interior of the inverter main body 1 and affecting the service life of the internal components of the inverter main body 1.

[0057] Furthermore, the cooling component further includes a cooling pipe 55 and a fan 56 corresponding to the cooling pipe 55. The cooling pipe 55 is located between the coolant storage box 51 and the coolant circulation tank 11 in the entire coolant circulation loop. One end of the cooling pipe 55 is connected to the first pipeline 52, and the other end is connected to the inlet end of the coolant circulation tank 11 through a third pipeline 57. The first pipeline 52, the cooling pipe 55 and the third pipeline 57 together form an inlet pipeline. In this embodiment, the cooling pipe 55 is arranged on the top of the inverter main body 1, and the fan 56 is fixed to the top end of the inverter main body 1 through a mounting bracket. The fan 56 is located below the cooling pipe 55 and is used to dissipate heat from the coolant in the cooling pipe 55 to ensure the cooling effect of the coolant.

[0058] In this embodiment, a protection frame 6 is welded and fixed to the top of the inverter main body 1, and the protection frame 6 surrounds the outside of the fan 56.

[0059] In one embodiment, a liquid replenishing pipe 58 is inlaid and fixed to the top end of the coolant storage box 51, and a sealing cover is arranged at the top end of the liquid replenishing pipe 58.

[0060] In one embodiment, the two sides of the inverter main body 1 are movably clamped with a gear shaft 7. A moving wheel 8 is fixed to the outside of the gear shaft 7 by bolts. The moving wheel 8 is coaxially connected to the gear shaft 7, which facilitates the movement of the entire photovoltaic inverter.

[0061] In a specific embodiment, in combination with Figure 1 and Figure 4 As shown, the two sides of the inverter main body 1 further include a stopping component for restricting the rotation of the gear shaft 7. The stopping component is configured to restrict the rotation of the gear shaft 7 so as to achieve the stopping of the moving wheel 8. The stopping component includes: a movable rod 91, a second spring 92, an electromagnet 93, and a magnetic metal plate 94. The stopping component includes two movable rods 91, and the two movable rods 91 are connected by a second spring 92. A rack 95 is fixedly connected to the end of the movable rod 91 away from the second spring 92. The rack 95 can be meshed with the gear shaft 7. The racks 95 of the two movable rods 91 are respectively meshed with a gear shaft 7. When the rack 95 is in a meshed state with the gear shaft 7, the gear shaft 7 cannot rotate, and the moving wheel 8 cannot rotate either. The photovoltaic inverter can stay and will not slide. The electromagnet 93 is located above the second spring 92. Two magnetic metal plates 94 are respectively fixedly connected to the upper edges of the two movable rods 91, on the left and right sides of the electromagnet 93. When the electromagnet 93 is energized, the electromagnet 93 adsorbs the two magnetic metal plates 94. Under the electromagnetic action, the movable rod 91 moves towards the electromagnet 93 along with the magnetic metal plate 94, squeezing the second spring 92, so that the rack 95 moves away from the gear shaft 7, and the rack 95 is disengaged from the meshed state with the gear shaft 7. The stopping of the gear shaft 7 by the stopping component is cancelled, so that the moving wheel 8 can rotate, facilitating the overall movement of the photovoltaic inverter. When it moves to the target position, the electromagnet 93 is powered off, and the movable rod 91 resets under the action of the second spring 92, so that the rack 95 is meshed with the gear shaft 7, and the moving wheel 8 is fixed, facilitating the fixed use of the overall photovoltaic inverter.

[0062] In one embodiment, the stopping component further includes a hollow block 96. The hollow block is fixedly connected to the side wall of the inverter main body 1. The electromagnet 93 is fixedly connected to the top of the hollow block 96. The second spring 92 is located inside the hollow block 96. A part of the movable rod 91 is located inside the hollow block 96 and is movably clamped with the hollow block 96. The movable rod 91 can move inside the hollow block 96. The magnetic metal plate 94 is located outside the hollow block 96 and is arranged corresponding to the electromagnet 93. The hollow block 96 can realize the limit of the movable rod 91.

[0063] In one embodiment, as Figure 3As shown, the stop assembly further includes a handle 97 and a trigger switch 98 located on the handle 97. The handle 97 is welded to the inverter body 1. The electromagnet 93 is electrically connected to the trigger switch 98, and the start and stop of the electromagnet 93 can be controlled through the trigger switch 98. When in use, when it is necessary to move the photovoltaic inverter, hold the position of the handle 97. At this time, press the trigger switch 98 integrally, the electromagnet 93 is powered on, and the electromagnet 93 adsorbs two magnetic metal plates 94. Under the electromagnetic action, the movable rod 91 moves in the direction close to the electromagnet 93 along with the magnetic metal plates 94, squeezing the second spring 92, so that the rack 95 moves away from the belt gear shaft 7, and the rack 95 and the belt gear shaft 7 are disengaged from the meshing state, and the stop of the stop assembly on the belt gear shaft 7 is cancelled, so that the moving wheel 8 can rotate, facilitating the overall movement of the photovoltaic inverter. When it is moved to the target position, release the handle 97, the trigger switch 98 is in a non-squeezed state, the electromagnet 93 is powered off, and the movable rod 91 is reset under the action of the second spring 92, so that the rack 95 meshes with the belt gear shaft 7, and the moving wheel 8 is fixed, facilitating the fixed use of the overall photovoltaic inverter.

[0064] In one embodiment, a rain shield 10 is welded and fixed to the top of the inverter body 1.

[0065] The working principle of the photovoltaic inverter provided by the embodiments of the present invention is as follows: When in use, the pump body 54 is started. The pump body 54 discharges the coolant inside the coolant storage box 51 through the first pipeline 52, injects it into the cooling pipe 55, then injects it into the coolant circulation tank 11 through the third pipeline 57, and then returns to the inside of the coolant storage box 51 through the second pipeline 53. The coolant flowing into the coolant circulation tank 11 cools down the inverter main body 1 to ensure the internal operating temperature. At the same time, the fan 56 is started, and the fan 56 dissipates heat from the coolant inside the cooling pipe 55, thus ensuring the cooling effect of the coolant. At the same time, during cooling, the entire inverter main body 1 is in a relatively sealed state to prevent external dust from entering the inside of the inverter main body 1 and affecting the service life of the internal components of the inverter main body 1; When in use, the connecting column 45 of the connecting rod 41 penetrates into the connecting hole to fix the position of the power regulator 2. At this time, the first spring 42 is in a stretched state. Then, the user slides the connecting rod 41 along the chute 43, causing the first spring 42 to be further stretched. At this time, the connecting column 45 of the connecting rod 41 disengages from the inside of the connecting hole, and then the power regulator 2 can be disassembled and replaced, so as to conveniently adjust and use different power regulators 2 and improve the applicable range of this photovoltaic inverter; When in use, when it is necessary to move the photovoltaic inverter, hold the handle 97. At this time, the trigger switch 98 is integrally pressed, the electromagnet 93 is energized, and the electromagnet 93 adsorbs the two magnetic metal plates 94. Under the electromagnetic action, the movable rod 91 moves towards the electromagnet 93 along with the magnetic metal plates 94, squeezing the second spring 92, causing the rack 95 to move away from the belt gear shaft 7, and the rack 95 disengages from the meshing state with the belt gear shaft 7. The stopping component cancels the stop of the belt gear shaft 7, enabling the moving wheel 8 to rotate, which facilitates the overall movement of the photovoltaic inverter. When it is moved to the destination position, release the handle 97, the trigger switch 98 is in a non-squeezed state, the electromagnet 93 is powered off, and the movable rod 91 is reset under the action of the second spring 92, causing the rack 95 to engage with the belt gear shaft 7, and the moving wheel 8 is fixed, which facilitates the fixed use of the overall photovoltaic inverter. It has the advantages of simple structure, convenient use, easy movement, good cooling effect, and convenient disassembly and replacement of the power regulator.

[0066] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, based on the above description, other different forms of changes or variations can be made. It is impossible to list all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A photovoltaic inverter, characterized in that, The photovoltaic inverter includes an inverter main body and a power regulator, and the power regulator is detachably fixed to the side wall of the inverter main body through a fixing component; The interior of the inverter main body includes a coolant circulation tank, and the coolant circulation tank is formed on the side wall of the inverter main body and is located between the inner and outer wall surfaces; The photovoltaic inverter further includes a cooling component, and the cooling component includes a coolant storage box, a first pipeline communicated with the liquid inlet end of the coolant circulation tank, and a second pipeline communicated with the liquid outlet end of the coolant circulation tank; The other end of the first pipeline is connected to the liquid outlet of the coolant storage box through a pump body, and the other end of the second pipeline is connected to the liquid inlet of the coolant storage box. The coolant storage box, the first pipeline, the coolant circulation tank and the second pipeline form a coolant circulation loop, which is configured to cool down the inverter main body by the coolant flowing into the coolant circulation tank; The fixing component includes two connecting rods slidably connected to the inverter main body, and the two connecting rods can move closer to or away from each other; The two connecting rods are connected by a first spring; The connecting rod includes a main body portion fixedly combined with the first spring and a connecting portion formed by extending downward from one end of the main body portion away from the first spring; The connecting portion includes a connecting column protruding toward the side of the power regulator, and the connecting column is configured to connect the inverter main body and the power regulator so that the power regulator is fixed to the inverter main body; The inverter main body includes a fixing frame, and the power regulator is detachably fixed inside the fixing frame through a fixing component; The fixing component is arranged outside the fixing frame; Both the side wall of the fixing frame and the side wall of the power regulator include connecting holes, and the connecting holes are correspondingly arranged with the connecting columns. The connecting columns are configured to pass through the connecting holes of the fixing frame and the power regulator so that the power regulator is fixedly connected to the inverter main body.

2. The photovoltaic inverter according to claim 1, wherein The cooling component further includes a cooling pipe and a fan correspondingly arranged with the cooling pipe; One end of the cooling pipe is connected to the outlet of the first pipeline, and the other end is communicated with the liquid inlet end of the coolant circulation tank through a third pipeline; The fan is fixedly combined with the inverter main body and is configured to dissipate heat from the coolant inside the cooling pipe to ensure the cooling effect of the coolant.

3. The photovoltaic inverter according to claim 1, characterized in that, The inverter main body includes moving wheels, and the moving wheels are arranged on the inverter main body through a belt gear shaft; The moving wheels are configured to rotate under the drive of the belt gear shaft to facilitate the movement of the photovoltaic inverter; 4. The photovoltaic inverter according to claim 3, characterized in that, The photovoltaic inverter further includes a stopping component, and the stopping component is configured to stop the moving wheels; The stopping component includes: A movable rod with a rack at one end; A second spring connecting the two movable rods; An electromagnet arranged above the second spring; and Magnetic metal plates located on two opposite sides of the electromagnet; The stopping component includes two movable rods, and the racks of the two movable rods are respectively engaged with a belt gear shaft, and the other ends of the two movable rods are connected by a second spring; The magnetic metal plates are respectively fixedly coupled to the two movable rods. When the electromagnet is energized, the two movable rods can move closer to each other under the electromagnetic action.

5. The PV inverter according to claim 4, characterized in that, The stopping assembly further includes a hollow block, and the electromagnet is fixedly coupled to the top of the hollow block; The second spring is located inside the hollow block. The movable rod is movably clamped with the hollow block, and the magnetic metal plate is located outside the hollow block.

6. The photovoltaic inverter according to claim 4, characterized in that, The stopping assembly further includes a handle and a trigger switch arranged on the handle. The trigger switch is configured to control the start and stop of the electromagnet.

7. The photovoltaic inverter according to claim 1, characterized in that, The top end of the inverter body includes a rain shield.

8. The photovoltaic inverter according to claim 1, characterized in that, The top end of the coolant storage box includes a liquid replenishing pipe, and a sealing cap is arranged at the end of the liquid replenishing pipe.

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