A spill-proof and stable power distribution cabinet for photovoltaic power stations

Abstract

The present invention relates to the technical field of power distribution cabinets, and specifically to a spill-proof and stable power distribution cabinet for photovoltaic power stations, comprising a bottom plate and a cabinet body, and also comprising a rainproof plate, a sealing mechanism, a wiping mechanism and a shielding mechanism. The rainproof plate is fixedly arranged on the top of the bottom plate, the sealing mechanism comprises a driving assembly and two bottom sealing plates, the wiping mechanism comprises a transmission assembly, a rotating assembly, a lifting assembly and two sponges, each sponge is slidably arranged at one end inside the cabinet body, the shielding mechanism is arranged on the cabinet body, the shielding mechanism comprises an electric control assembly and two blocking covers, the electric control assembly is arranged on the cabinet body, two vents are symmetrically arranged on the outer walls on both sides of the cabinet body, a filter plate is provided inside the vents, and each blocking cover is slidably arranged beside a vent. The spill-proof and stable power distribution cabinet for photovoltaic power stations of the present invention can completely wrap the bottom of the cabinet body to prevent accumulated water from overflowing into the interior of the cabinet body from the gap between the bottom of the cabinet body and the protective door to cause damage to the power distribution facilities.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, and in particular to a spill-proof and stable power distribution cabinet for a photovoltaic power station. Background Art

[0002] Distribution cabinets (boxes) are classified as power distribution cabinets (boxes), lighting distribution cabinets (boxes), and metering cabinets (boxes). They are the final stage of the power distribution system. Distribution cabinets are a general term for motor control centers (MCCs). Distribution cabinets are used in applications with relatively dispersed loads and a small number of circuits, while MCCs are used in applications with concentrated loads and a large number of circuits. They distribute power from a circuit in the upper-level distribution equipment to the nearest load. This level of equipment should provide protection, monitoring, and control for the loads.

[0003] The existing power distribution cabinet has the following deficiencies:

[0004] 1. The bottom of the distribution cabinet is not sealed, and water on the ground can easily overflow into the distribution cabinet from the gap between the bottom of the distribution box and the door, causing moisture inside the cabinet, thus affecting the operation of the distribution facilities.

[0005] 2. When it rains, some water vapor enters the cabinet through the filter plate at the ventilation opening and forms water droplets that adhere to the inner wall of the cabinet. If not handled in time, the power distribution facilities may become damp and malfunction. Summary of the Invention

[0006] The object of the present invention is to provide a spill-proof and stable power distribution cabinet for a photovoltaic power station.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] Provided is a spill-proof and stable power distribution cabinet for a photovoltaic power station, comprising a base plate and a cabinet body, wherein the cabinet body is fixed to the top of the base plate by four L-shaped rods;

[0009] It also includes a flashing plate, a sealing mechanism, a wiping mechanism and a shielding mechanism, wherein the flashing plate is fixedly arranged on the top of the base plate;

[0010] The sealing mechanism is arranged on the top of the bottom plate, and the sealing mechanism includes a driving assembly and two bottom sealing plates, each bottom sealing plate is slidably arranged on the top of the bottom plate, and the driving assembly is arranged between the two bottom sealing plates;

[0011] The wiping mechanism is provided on the cabinet, and includes a transmission assembly, a rotating assembly, a lifting assembly and two sponges. Each sponge is slidably provided at one end of the interior of the cabinet. The rotating assembly is provided at the top of the cabinet. The transmission assembly is provided between the driving assembly and the rotating assembly. The lifting assembly is provided between the rotating assembly and the two sponges.

[0012] The shielding mechanism is arranged on the cabinet body, and the shielding mechanism includes an electronic control component and two blocking covers. The electronic control component is arranged on the cabinet body. Two ventilation holes are symmetrically arranged on the outer walls on both sides of the cabinet body. A filter plate is provided inside each ventilation hole, and each blocking cover is slidably arranged on the side of a ventilation hole.

[0013] Furthermore, the drive assembly includes a stepper motor, a first gear, a transmission shaft and two first racks. The stepper motor is fixed on the outer wall of the cabinet, the transmission shaft is rotatably arranged on the rainproof plate, the output end of the stepper motor is fixedly connected to the top of the transmission shaft, the first gear is fixedly arranged at the bottom of the transmission shaft, each first rack is fixed on a bottom plate, each first rack is slidingly connected to the bottom plate, the first gear is meshed with the two first racks, one end of one of the bottom plates is provided with a sealing strip, and one end of the other bottom plate is provided with a groove for inserting the sealing strip.

[0014] Furthermore, the transmission assembly includes a traction rod, a push block, a second rack, a second gear, a third gear and a fourth gear. The top of the cabinet is provided with a first hinge shaft and a second hinge shaft, the second gear and the third gear are respectively fixed on the first hinge shaft and the second hinge shaft, the top of the cabinet is respectively rotatably provided with a first rotating shaft and a second rotating shaft, the fourth gear is fixed on the first rotating shaft, a support plate is fixed on the outer wall of the cabinet, a guide rail is fixed on the top of the support plate, the second rack is slidably provided on the top of the guide rail, the second rack, the second gear, the third gear and the fourth gear are meshed and connected in sequence, the push block is fixed on the outer wall of the second rack, the traction rod is fixed on the top of one of the first racks, the push block and the traction rod are fixedly connected at one end away from the first rack by a connecting rod, and the side wall of the guide rail is provided with a sliding groove for the push block to slide.

[0015] Furthermore, the rotating assembly includes a driving wheel, a driven wheel and a belt. The driving wheel and the driven wheel are fixed on the first rotating shaft and the second rotating shaft respectively, and the belt is sleeved between the driving wheel and the driven wheel.

[0016] Furthermore, the lifting assembly includes a turntable, a steel rope, a lifting rod, two gravity blocks and two slides. The turntable is fixed on the second rotating shaft. Four slide rails are fixed inside the cabinet. Each slide rail is slid between two slide rails on the same side. Each sponge is connected to a slide. The lifting rod is fixed between the two slides. The two gravity blocks are fixed at the bottom of the lifting rod. The steel rope is fixed at one end of one of the slides. The end of the steel rope away from the slide is fixedly connected to the turntable.

[0017] Furthermore, two stoppers are symmetrically arranged at both ends of the interior of the cabinet, and each stopper is located below a sponge.

[0018] Furthermore, two drainage grooves are symmetrically arranged at the inner bottom of the cabinet, the top of each drainage groove is a slope structure, two drainage outlets are opened at one end of the cabinet close to the first rack, and a docking port is provided at one end of each bottom plate close to the drainage outlet.

[0019] Furthermore, a baffle is slidably provided at one end of each bottom cover plate close to the docking port, and a micro electric push rod is fixedly provided on the outer wall of each bottom cover plate, and its output end is fixedly connected to the baffle.

[0020] Furthermore, the electronic control component includes a bidirectional electric push rod and two push plates. The bidirectional electric push rod is fixed at the bottom of the support plate. Each push plate is fixed between the output end of the bidirectional electric push rod and one of the blocking covers. An induction block is fixed on the outer wall of one of the slides, and a proximity switch is fixed on the inner bottom of the cabinet. The proximity switch is located directly below the induction block.

[0021] Furthermore, a mounting plate is fixedly provided inside the cabinet, a protective door is hingedly provided on the open end of the cabinet, and a handle is provided on the outer wall of the protective door.

[0022] Beneficial effects of the present invention:

[0023] 1. The present invention designs a sealing mechanism, namely a drive assembly and two bottom plates. At the same time, a position sensor is fixedly installed on the back outer wall of the rainproof plate, and its detection end is vertically facing the ground. When it is detected that the water on the ground is about to exceed the top of the bottom plate, a signal is sent to the controller, which activates the drive assembly through the controller, driving the two bottom plates to approach each other until they fit together, and the sealing strip on one bottom plate is inserted into the groove on the other bottom plate to seal the gap between the two bottom plates, thereby completely wrapping the bottom of the cabinet to prevent accumulated water from overflowing into the interior of the cabinet from the gap between the bottom of the cabinet and the protective door, causing damage to the power distribution facilities.

[0024] 2. The present invention drives the sealing mechanism and the wiping mechanism to operate synchronously by designing a transmission component. That is, while the two bottom sealing plates approach each other to wrap the gap between the bottom of the cabinet and the protective door, the two sponges inside the cabinet are synchronously driven to descend vertically, wiping and adsorbing the water droplets adhering to the two inner walls of the cabinet close to the filter plate, thereby cleaning the water vapor and avoiding the use of a driving source for each mechanism, thereby reducing the overall power consumption of the distribution cabinet and thus helping to reduce the cost of overflow prevention.

[0025] 3. The present invention is designed with blocks on both inner walls of the cabinet, a drainage groove is designed directly below each block, a drainage outlet is designed at one end of the cabinet close to each drainage groove, and a docking interface is designed at one end of each bottom plate close to the drainage outlet, and a baffle is designed on the outer wall of each docking interface, so that the water adsorbed into the sponge by wiping can be squeezed out and fall into the inside of the drainage groove, and then the baffle is removed by a micro electric push rod to open the docking interface to realize the discharge of water, thereby preventing the water from being retained inside the cabinet and causing moisture in the distribution facilities and causing malfunctions. At the same time, squeezing out the water adsorbed by the sponge can ensure the continuous use of the sponge and reduce the replacement frequency.

[0026] 4. The present invention is designed with a sensing block, a proximity switch and a shielding mechanism, which includes an electronic control component and two blocking covers. After the sponge descends and squeezes the water absorbed inside it into the drain groove, the sensing block approaches the proximity switch. After the proximity switch detects the arrival of the sensing block, it sends a signal to the controller, thereby driving the two blocking covers to block the two vents through the electronic control component, preventing water vapor from continuing to enter the interior of the cabinet from the filter plate, so that the entire interior of the cabinet remains sealed, and the heat generated by the operation of the power distribution facilities is used to heat the interior of the cabinet, thereby gradually reducing the overall humidity inside the cabinet, and at the same time heating the two sponges after squeezing out the water to ensure water absorption operation next time.

[0027] 5. The present invention is designed with two gravity blocks, which can apply a certain gravity to the lifting rod, ensuring that the sliding plate drives the sponge to vertically descend, thereby increasing the wiping force of the sponge on the inner wall of the cabinet, thereby ensuring the sponge's adsorption effect on the water droplets on the inner wall of the cabinet, preventing omissions, and improving the effect of wiping and adsorbing water droplets. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings in the embodiments of the present invention.

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 2 for Figure 1 A magnified view of point A in the figure;

[0031] Figure 3 Schematic diagram of the three-dimensional structure of the present invention without the rainproof plate Figure 1 ;

[0032] Figure 4 for Figure 3 Enlarged view of point B in FIG.

[0033] Figure 5 for Figure 3 Enlarged view of point C in the figure;

[0034] Figure 6This is a schematic diagram of the planar structure without the flashing;

[0035] Figure 7 for Figure 6 The enlarged view of point D in the figure;

[0036] Figure 8 for Figure 6 Enlarged view of point E in the figure;

[0037] Figure 9 Schematic diagram of the three-dimensional structure of the present invention without the rainproof plate Figure 2 ;

[0038] Figure 10 for Figure 9 The enlarged view of point F in the figure;

[0039] Figure 11 for Figure 9 The enlarged view of G in the figure;

[0040] Figure 12 It is a schematic diagram of the three-dimensional structure of the cabinet of the present invention;

[0041] Figure 13 for Figure 12 The enlarged view of H in the figure;

[0042] In the figure: cabinet 10, rainproof plate 11, bottom plate 12, sponge 13, blocking cover 14, vent 15, filter plate 16, stepper motor 17, first gear 18, transmission shaft 19, first rack 20, sealing strip 21, traction rod 22, push block 23, second rack 24, second gear 25, third gear 26, fourth gear 27, driving wheel 28, driven wheel 29, belt 30, turntable 31, steel rope 32, lifting rod 33, gravity block 34, slide plate 35, slide rail 36, block 37, drainage trough 38, drainage outlet 39, docking port 40, baffle 41, micro electric push rod 42, two-way electric push rod 43, push plate 44, sensor block 45, proximity switch 46, mounting plate 47, protective door 48, first hinge axis 49, second hinge axis 50, first rotating shaft 51, second rotating shaft 52. DETAILED DESCRIPTION

[0043] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0044] The accompanying drawings are for illustrative purposes only and are schematic diagrams rather than actual drawings, and should not be construed as limiting the present invention. In order to better illustrate the embodiments of the present invention, certain components of the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the dimensions of actual products.

[0045] Reference Figures 1 to 13As shown, a spill-proof stable photovoltaic power distribution cabinet includes a bottom plate and a cabinet body 10, and the cabinet body 10 is fixed on the top of the bottom plate by four L-shaped rods;

[0046] It also includes a rainproof plate 11, a sealing mechanism, a wiping mechanism and a shielding mechanism, and the rainproof plate 11 is fixedly arranged on the top of the base plate;

[0047] The sealing mechanism is provided on the top of the bottom plate, and the sealing mechanism includes a driving assembly and two bottom sealing plates 12. Each bottom sealing plate 12 is slidably provided on the top of the bottom plate, and the driving assembly is provided between the two bottom sealing plates 12.

[0048] The wiping mechanism is provided on the cabinet 10 and includes a transmission assembly, a rotating assembly, a lifting assembly and two sponges 13. Each sponge 13 is slidably provided at one end of the interior of the cabinet 10. The rotating assembly is provided at the top of the cabinet 10. The transmission assembly is provided between the driving assembly and the rotating assembly. The lifting assembly is provided between the rotating assembly and the two sponges 13.

[0049] The shielding mechanism is arranged on the cabinet 10, and the shielding mechanism includes an electronic control component and two blocking covers 14. The electronic control component is arranged on the cabinet 10. Two ventilation holes 15 are symmetrically arranged on the outer walls on both sides of the cabinet 10. A filter plate 16 is provided inside each ventilation hole 15, and each blocking cover 14 is slidably arranged next to a ventilation hole 15.

[0050] Reference Figures 1 to 13As shown, the driving assembly includes a stepper motor 17, a first gear 18, a transmission shaft 19 and two first racks 20. The stepper motor 17 is fixedly arranged on the outer wall of the cabinet 10, and the transmission shaft 19 is rotatably arranged on the rainproof plate 11. The output end of the stepper motor 17 is fixedly connected to the top of the transmission shaft 19, and the first gear 18 is fixedly arranged at the bottom of the transmission shaft 19. Each first rack 20 is fixedly arranged on a bottom plate 12, and each first rack 20 is slidably connected to the bottom plate. The first gear 18 is meshed with the two first racks 20. One end of one of the bottom plates 12 is provided with a sealing strip 21, and one end of the other bottom plate 12 is provided with a groove for inserting the sealing strip 21. The power distribution cabinet is equipped with a controller, and a position sensor is fixedly installed on the back outer wall of the rainproof plate 11 (Figure 1). ), its detection end is vertically facing the ground. When it detects that the water on the ground is about to exceed the top of the bottom plate, it sends a signal to the controller, thereby starting the stepper motor 17 through the controller. Since its output end is fixedly connected to the first gear 18, each first rack 20 is slidably connected to the top of the bottom plate, each first rack 20 is fixedly connected to a bottom plate 12, and each bottom plate 12 is slidably connected to the top of the bottom plate. The first gear 18 is meshed with the two first racks 20, thereby driving the two bottom plates 12 to approach each other until they are fitted together. At this time, the sealing strip 21 is inserted into the groove to seal the gap between the two bottom plates 12, thereby completely wrapping the bottom of the cabinet 10 to prevent accumulated water from overflowing from the bottom of the cabinet 10 into the interior of the cabinet 10 and causing damage to the power distribution facilities.

[0051] Reference Figures 1 to 13As shown, the transmission assembly includes a traction rod 22, a push block 23, a second rack 24, a second gear 25, a third gear 26 and a fourth gear 27. The top of the cabinet 10 is provided with a first hinge shaft 49 and a second hinge shaft 50. The second gear 25 and the third gear 26 are respectively fixed on the first hinge shaft 49 and the second hinge shaft 50. The top of the cabinet 10 is respectively rotatably provided with a first rotating shaft 51 and a second rotating shaft 52. The fourth gear 27 is fixed on the first rotating shaft 51. A support plate is fixed on the outer wall of the cabinet 10. A guide rail is fixed on the top of the support plate. The second rack 24 is slidably provided on the top of the guide rail. The second rack 24, the second gear 25, the third gear 26 and the fourth gear 27 are meshed and connected in sequence. The push block 23 is fixed on the outer wall of the second rack 24. The traction rod 22 is fixed on one of them. At the top of the first rack 20, the push block 23 and the traction rod 22 are fixedly connected at one end away from the first rack 20 by a connecting rod, and a sliding groove for the push block 23 to slide is provided on the side wall of the guide rail. When the two bottom plates 12 approach each other, since the second gear 25 and the third gear 26 are fixedly connected to the first hinge shaft 49 and the second hinge shaft 50 respectively, the fourth gear 27 is fixedly connected to the first rotating shaft 51, the second rack 24 slides and is slidably connected to the guide rail, the second rack 24, the second gear 25, the third gear 26 and the fourth gear 27 are meshed and connected in sequence, the push block 23 is fixedly connected to the second rack 24, the traction rod 22 is fixedly connected to one of the first racks 20, and the push block 23 and the traction rod 22 are fixedly connected at one end away from the first rack 20 by a connecting rod, thereby driving the first rotating shaft 51 to rotate clockwise.

[0052] Reference Figures 1 to 13 As shown, the rotating assembly includes a driving wheel 28, a driven wheel 29 and a belt 30. The driving wheel 28 and the driven wheel 29 are respectively fixed on the first rotating shaft 51 and the second rotating shaft 52. The belt 30 is sleeved between the driving wheel 28 and the driven wheel 29. When the first rotating shaft 51 rotates clockwise, since the driving wheel 28 and the driven wheel 29 are respectively fixedly connected to the first rotating shaft 51 and the second rotating shaft 52, the driving wheel 28 and the driven wheel 29 are sleeved by the belt 30, thereby driving the second rotating shaft 52 to rotate clockwise.

[0053] Reference Figures 1 to 13As shown, the lifting assembly includes a turntable 31, a steel rope 32, a lifting rod 33, two weight blocks 34 and two slides 35. The turntable 31 is fixed on the second rotating shaft 52. Four slide rails 36 are fixed inside the cabinet 10. Each slide rail 35 is slidably arranged between two slide rails 36 on the same side. Each sponge 13 is sleeved with a slide 35. The lifting rod 33 is fixed between the two slides 35. The two weight blocks 34 are fixed at the bottom of the lifting rod 33. The steel rope 32 is fixed at one end of one of the slides 35. The end of the steel rope 32 away from the slide 35 is fixedly connected to the turntable 31. When the second rotating shaft 52 is rotated clockwise, When the needle rotates, since the steel rope 32 is fixedly connected to one end of one of the slides 35, the end of the steel rope 32 away from the slide 35 is fixedly connected to the turntable 31. Under the action of the gravity of the two gravity blocks 34, the steel rope 32 wound on the outer wall of the turntable 31 will be unwound, so that the lifting rod 33 drives the two slides 35 to vertically descend between the four slide rails 36. Due to the initial state, the end of each sponge 13 away from the slide 35 is in contact with the inner wall of the cabinet 10 near the vent 15, so that when the two sponges 13 follow the slide 35 to descend vertically, they will absorb the condensed water droplets on the two inner walls of the cabinet 10 near the vent 15.

[0054] Reference Figures 1 to 13 As shown, two blocks 37 are symmetrically provided at both ends of the interior of the cabinet 10, and each block 37 is located below a sponge 13. When the sponge 13 after absorbing water drops to contact the block 37, the block 37 will squeeze the sponge 13, thereby squeezing out the water absorbed therein.

[0055] Reference Figures 1 to 13 As shown, two drainage grooves 38 are symmetrically provided at the inner bottom of the cabinet body 10, and the top of each drainage groove 38 is a slope structure. Two drainage outlets 39 are provided at one end of the cabinet body 10 close to the first rack 20, and a docking port 40 is provided at one end of each bottom plate 12 close to the drainage outlet 39. The drainage grooves 38 are used to receive the water squeezed out from the inside of the sponge 13. The slope structure facilitates the flow of water to the drainage outlet 39, and the docking port 40 facilitates the discharge of water from the drainage outlet 39 to the inside of the cabinet body 10.

[0056] Reference Figures 1 to 13As shown, a baffle 41 is slidingly provided at one end of each bottom plate 12 near the docking port 40, and a micro-electric push rod 42 is fixed on the outer wall of each bottom plate 12, whose output end is fixedly connected to the baffle 41, and the water squeezed out from the inside of the sponge 13 drops into the inside of the drainage groove 38. Since the top of the drainage groove 38 is a slope structure, two drainage ports 39 are designed at one end of the cabinet 10 near the first rack 20, and a docking port 40 is designed at one end of each bottom plate 12 near the drainage port 39. The two micro-electric push rods 42 are started by the controller, so that their output ends are contracted, driving the two baffles 41 to move away from the docking port 40, so that the water dripping into the inside of the drainage groove 38 flows out from the two docking ports 40, preventing it from being retained inside the cabinet 10 and causing moisture inside the cabinet 10 to cause moisture to malfunction in the power distribution facilities, and then the two baffles 41 are driven to reset by the two micro-electric push rods 42 to achieve the blocking of the docking port 40, preventing water vapor from entering the inside of the bottom plate 12 and being transmitted to the inside of the cabinet 10.

[0057] Reference Figures 1 to 13 As shown, the electric control component includes a bidirectional electric push rod 43 and two push plates 44. The bidirectional electric push rod 43 is fixed at the bottom of the support plate. Each push plate 44 is fixed between the output end of the bidirectional electric push rod 43 and one of the blocking covers 14. A sensing block 45 is fixed on the outer wall of one of the slides 35. A proximity switch 46 is fixed on the inner bottom of the cabinet 10. The proximity switch 46 is located directly below the sensing block 45. When the sponge 13 contacts the block 37 and the water adsorbed thereon is squeezed into the inside of the drain groove 38, that is, when the slide 35 drops to the lowest state inside the cabinet 10, The proximity switch 46 senses the arrival of the sensing block 45. Since the sensing block 45 is fixedly connected to the slide 35, a signal is sent to the controller, which then starts the bidirectional electric push rod 43 through the controller. Since the output end of the bidirectional electric push rod 43 and each blocking cover 14 are fixedly connected to the two ends of a push plate 44, each blocking cover 14 is slidingly connected to the outer wall of the cabinet 10, thereby driving the two blocking covers 14 to slide toward one end close to the vent 15 until they are in contact with the vent 15, achieving a covering effect, preventing moisture from entering the interior of the cabinet 10 when it rains, and keeping the interior of the cabinet 10 dry.

[0058] Reference Figures 1 to 13 As shown, a mounting plate 47 is fixed inside the cabinet 10, and a protective door 48 is hingedly provided on the open end of the cabinet 10. A handle is provided on the outer wall of the protective door 48. The mounting plate 47 is used to install the distribution switch and lighting facilities. The protective door 48 plays a protective role, and the handle makes it convenient for workers to open and close the protective door 48.

[0059] Working principle of the present invention: This distribution cabinet is equipped with a controller, and a position sensor is fixedly installed on the back outer wall of the rainproof plate 11, and its detection end is vertically facing the ground. When it is detected that the water on the ground is about to exceed the top of the bottom plate, a signal is sent to the controller, thereby starting the stepper motor 17 through the controller. Since its output end is fixedly connected to the first gear 18, each first rack 20 is slidably connected to the top of the bottom plate, and each first rack 20 is fixedly connected to a bottom plate 12. Each bottom plate 12 is slidably connected to the top of the bottom plate. The first gear 18 is meshed with the two first racks 20, thereby driving the two bottom plates 12 to approach each other until they fit together. At this time, the sealing strip 21 is inserted into the groove to seal the gap between the two bottom plates 12, and then completely wrap the bottom of the cabinet 10 to prevent accumulated water from overflowing from the bottom of the cabinet 10 into the interior of the cabinet 10 and causing damage to the distribution facilities.

[0060] When the two bottom plates 12 approach each other, since the second gear 25 and the third gear 26 are fixedly connected to the first hinge shaft 49 and the second hinge shaft 50 respectively, the fourth gear 27 is fixedly connected to the first rotating shaft 51, the second rack 24 is slidably connected to the guide rail, the second rack 24, the second gear 25, the third gear 26 and the fourth gear 27 are meshed and connected in sequence, the push block 23 is fixedly connected to the second rack 24, the traction rod 22 is fixedly connected to one of the first racks 20, and the push block 23 and the traction rod 22 are fixedly connected at one end away from the first rack 20 by a connecting rod, thereby driving the first rotating shaft 51 to rotate clockwise.

[0061] When the first rotating shaft 51 rotates clockwise, the driving wheel 28 and the driven wheel 29 are fixedly connected to the first rotating shaft 51 and the second rotating shaft 52 respectively, and the driving wheel 28 and the driven wheel 29 are connected by the belt 30, thereby driving the second rotating shaft 52 to rotate clockwise.

[0062] When the second rotating shaft 52 rotates clockwise, since the steel rope 32 is fixedly connected to one end of one of the slides 35, the end of the steel rope 32 away from the slide 35 is fixedly connected to the turntable 31. Under the action of the gravity of the two gravity blocks 34, the steel rope 32 wound on the outer wall of the turntable 31 will be unwound, so that the lifting rod 33 drives the two slides 35 to vertically descend between the four slide rails 36. Due to the initial state, the end of each sponge 13 away from the slide 35 is in contact with the inner wall of the cabinet 10 close to the vent 15, so that when the two sponges 13 follow the slide 35 to descend vertically, they will absorb the condensed water droplets on the two inner walls of the cabinet 10 close to the vent 15.

[0063] When the sponge 13 after absorbing water descends to contact the stopper 37 , the stopper 37 will squeeze the sponge 13 , thereby squeezing out the water absorbed therein.

[0064] The water squeezed out from the sponge 13 drips into the inside of the drainage trough 38. Since the top of the drainage trough 38 is a slope structure, two drainage ports 39 are designed at one end of the cabinet 10 close to the first rack 20, and a docking port 40 is designed at one end of each bottom plate 12 close to the drainage port 39. The two micro electric push rods 42 are activated by the controller to shrink their output ends, driving the two baffles 41 to move away from the docking port 40, so that the water dripping into the drainage trough 38 flows out from the two docking ports 40, preventing it from being retained in the cabinet 10 and causing moisture inside the cabinet 10, which may cause the power distribution facilities to malfunction due to moisture. Then, the two baffles 41 are driven to reset by the two micro electric push rods 42 to achieve the blocking of the docking port 40, preventing water vapor from entering the bottom plate 12 and being transmitted to the inside of the cabinet 10.

[0065] When the sponge 13 contacts the block 37 and the moisture adsorbed thereon is squeezed into the inside of the drain groove 38, that is, when the slide 35 drops to the lowest state inside the cabinet 10, the proximity switch 46 senses the arrival of the sensing block 45. Since the sensing block 45 is fixedly connected to the slide 35, a signal is sent to the controller, which then starts the two-way electric push rod 43 through the controller. Since the output end of the two-way electric push rod 43 and each blocking cover 14 are fixedly connected to the two ends of a push plate 44, each blocking cover 14 is slidably connected to the outer wall of the cabinet 10, thereby driving the two blocking covers 14 to slide toward one end close to the vent 15 until they are in contact with the vent 15, achieving a covering effect, preventing moisture from entering the interior of the cabinet 10 when it rains, and keeping the interior of the cabinet 10 dry.

[0066] The mounting plate 47 is used to install the power distribution switch and lighting facilities, the protective door 48 plays a protective role, and the handle makes it convenient for workers to open and close the protective door 48.

Claims

1. A spill-proof stable power distribution cabinet for a photovoltaic power station, comprising a bottom plate and a cabinet body (10), wherein the cabinet body (10) is fixed to the top of the bottom plate by four L-shaped rods, and is characterized in that: It also includes a rainproof plate (11), a sealing mechanism, a wiping mechanism and a shielding mechanism, wherein the rainproof plate (11) is fixedly arranged on the top of the base plate; The sealing mechanism is arranged on the top of the bottom plate, and the sealing mechanism includes a driving assembly and two bottom sealing plates (12). Each bottom sealing plate (12) is slidably arranged on the top of the bottom plate, one end of one bottom sealing plate (12) is provided with a sealing strip (21), and one end of the other bottom sealing plate (12) is provided with a groove for inserting the sealing strip (21), and the driving assembly is arranged between the two bottom sealing plates (12); The driving assembly includes a stepper motor (17), a first gear (18), a transmission shaft (19) and two first racks (20), wherein the stepper motor (17) is fixedly mounted on the outer wall of the cabinet (10), the transmission shaft (19) is rotatably mounted on the rainproof plate (11), the output end of the stepper motor (17) is fixedly connected to the top end of the transmission shaft (19), the first gear (18) is fixedly mounted on the bottom end of the transmission shaft (19), each first rack (20) is fixedly mounted on a bottom cover plate (12), each first rack (20) is slidably connected to the bottom plate, and the first gear (18) is meshedly connected to the two first racks (20); The wiping mechanism is arranged on the cabinet (10), and the wiping mechanism includes a transmission assembly, a rotating assembly, a lifting assembly and two sponges (13), each sponge (13) is slidably arranged at one end inside the cabinet (10), the rotating assembly is arranged on the top of the cabinet (10), the transmission assembly is arranged between the driving assembly and the rotating assembly, and the lifting assembly is arranged between the rotating assembly and the two sponges (13); The transmission assembly includes a traction rod (22), a push block (23), a second rack (24), a second gear (25), a third gear (26) and a fourth gear (27). The top of the cabinet (10) is provided with a first hinge shaft (49) and a second hinge shaft (50). The second gear (25) and the third gear (26) are respectively fixed on the first hinge shaft (49) and the second hinge shaft (50). The top of the cabinet (10) is respectively provided with a first rotating shaft (51) and a second rotating shaft (52). The fourth gear (27) is fixed on the first rotating shaft (51). The cabinet (10) A support plate is fixed on the outer wall of the support plate, a guide rail is fixed on the top of the support plate, a second rack (24) is slidably arranged on the top of the guide rail, the second rack (24), the second gear (25), the third gear (26) and the fourth gear (27) are meshed and connected in sequence, a push block (23) is fixed on the outer wall of the second rack (24), a traction rod (22) is fixed on the top of one of the first racks (20), the push block (23) and the traction rod (22) are fixedly connected at one end away from the first rack (20) by a connecting rod, and a slide groove for sliding the push block (23) is provided on the side wall of the guide rail; The lifting assembly includes a turntable (31), a steel rope (32), a lifting rod (33), two weight blocks (34) and two slides (35). The turntable (31) is fixed on the second rotating shaft (52). Four slide rails (36) are fixed inside the cabinet (10). Each slide rail (35) is slidably arranged between two slide rails (36) located on the same side. Each sponge (13) is sleeved with a slide rail (35). The lifting rod (33) is fixed between the two slide rails (35). The two weight blocks (34) are fixed at the bottom of the lifting rod (33). The steel rope (32) is fixed at one end of one of the slides (35). The end of the steel rope (32) away from the slide rail (35) is fixedly connected to the turntable (31). The shielding mechanism is provided on the cabinet (10), and the shielding mechanism includes an electric control component and two blocking covers (14). The electric control component is provided on the cabinet (10). Two ventilation openings (15) are symmetrically provided on the outer walls of both sides of the cabinet (10). A filter plate (16) is provided inside each ventilation opening (15), and each blocking cover (14) is slidably provided on the side of a ventilation opening (15); The electric control component includes a bidirectional electric push rod (43) and two push plates (44), the bidirectional electric push rod (43) is fixed at the bottom of the support plate, each push plate (44) is fixed between the output end of the bidirectional electric push rod (43) and one of the blocking covers (14), a sensing block (45) is fixed on the outer wall of one of the slides (35), and a proximity switch (46) is fixed on the inner bottom of the cabinet (10), and the proximity switch (46) is located directly below the sensing block (45).

2. The anti-overflow stable photovoltaic power distribution cabinet according to claim 1, characterized in that: The rotating assembly comprises a driving wheel (28), a driven wheel (29) and a belt (30). The driving wheel (28) and the driven wheel (29) are fixed on the first rotating shaft (51) and the second rotating shaft (52), respectively. The belt (30) is sleeved between the driving wheel (28) and the driven wheel (29).

3. The anti-overflow stable photovoltaic power distribution cabinet according to claim 2, characterized in that: Two stoppers (37) are symmetrically arranged at both ends of the interior of the cabinet (10), and each stopper (37) is located below a sponge (13).

4. The anti-overflow stable photovoltaic power distribution cabinet according to claim 3, characterized in that: Two drainage grooves (38) are symmetrically arranged on the inner bottom of the cabinet body (10), and the top of each drainage groove (38) is a slope structure. Two drainage openings (39) are opened at one end of the cabinet body (10) close to the first rack (20), and a docking interface (40) is provided at one end of each bottom cover plate (12) close to the drainage opening (39).

5. The anti-overflow stable power distribution cabinet for photovoltaic power station according to claim 4, characterized in that: A baffle (41) is slidably provided at one end of each bottom cover plate (12) close to the docking port (40), and a micro electric push rod (42) is fixedly provided on the outer wall of each bottom cover plate (12), the output end of which is fixedly connected to the baffle (41).

6. The anti-overflow stable power distribution cabinet for photovoltaic power station according to claim 5, characterized in that: A mounting plate (47) is fixedly provided inside the cabinet (10), a protective door (48) is hingedly provided on the open end of the cabinet (10), and a handle is provided on the outer wall of the protective door (48).

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