An energy-saving power distribution cabinet for photovoltaic power generation

Abstract

The present invention relates to the field of power distribution cabinets, and in particular to an energy-saving power distribution cabinet for photovoltaic power generation, including a base, a power distribution box, a water-cooled heat sink and a fan, etc.; the base is fixedly connected to the power distribution box; the rear side of the power distribution box is fixedly connected to a water-cooled heat sink for auxiliary heat dissipation, and the water-cooled heat sink is set to be hollow, and the water-cooled heat sink is provided with a heat conduction plate; the power distribution box is fixedly connected to a plurality of fans. The present invention allows water to flow through the water-cooled heat sink, so that the water-cooled heat sink always maintains a low temperature, thereby assisting the fan to dissipate heat for electrical components, greatly improving the heat dissipation effect for electrical components, and by allowing water to flow into the sliding groove, the buoyancy plate, the sealing plate and the connecting rod move upward, and the sealing plate blocks the splashes of water when the waves hit the base, preventing the splashes from passing through the heat dissipation holes on the distribution box into the distribution box, causing the problem of short circuit in the internal circuit of the distribution box.

Description

Technical Field

[0001] The invention relates to the field of power distribution cabinets, and in particular to an energy-saving power distribution cabinet for photovoltaic power generation. Background Art

[0002] A floating photovoltaic power station is a form of photovoltaic power station. It generates photovoltaic power by floating photovoltaic panels on the lake surface, and then distributes the generated electricity through the distribution cabinet. Since the photovoltaic panels float on the lake surface, the distribution cabinet also needs to be installed on the lake surface, and then supported at the bottom of the distribution cabinet by a cement base. However, the water in the lake will evaporate to produce water vapor, so that at night, the humidity on the lake surface will be very heavy. This moisture will enter the distribution cabinet through the heat dissipation holes on the distribution cabinet, and then adhere to the electrical components of the distribution cabinet, which can easily cause short circuits in the electrical components.

[0003] In addition, waves often appear on the lake surface. When the waves hit the base of the distribution cabinet, a large amount of water will splash. Some of the water will pass through the heat dissipation holes on the distribution cabinet and enter the distribution cabinet, causing a short circuit in the internal circuit of the distribution cabinet, requiring staff to carry out maintenance, affecting photovoltaic power generation. Summary of the invention

[0004] In order to overcome the disadvantage that moisture may enter the distribution cabinet through the heat dissipation holes on the distribution cabinet and then adhere to the electrical components of the distribution cabinet, which may easily cause a short circuit of the electrical components, the present invention provides an energy-saving distribution cabinet for photovoltaic power generation.

[0005] Technical solution: An energy-saving distribution cabinet for photovoltaic power generation, including a base and a distribution box; the base is fixedly connected to the distribution box; it also includes a water-cooled heat sink, a fan, a top plate, a buoyancy plate, a sealing plate, a connecting rod and a pump; the base is provided with a sliding groove, the base is provided with a water flow groove, and the water flow groove is connected to the bottom of the sliding groove; a water-cooled heat sink for auxiliary heat dissipation is fixedly connected to the rear side of the distribution box, and the water-cooled heat sink is hollow, and the water-cooled heat sink is provided with a heat conducting plate, and the water-cooled heat sink is provided with a water inlet pipe; the base is fixedly connected to the pump, and the water inlet pipe is connected to the bottom of the sliding groove; the water-cooled heat sink ... The pump is connected, and the water-cooling heat sink is provided with a water outlet pipe II, and the water outlet pipe II is connected to the water trough; the base is provided with a water outlet pipe I, and the water outlet pipe I is connected to the sliding groove, the base is provided with a water outlet I, and the water outlet I is connected to the sliding groove, and the water outlet I is above the water outlet pipe I; the distribution box is fixedly connected with a plurality of fans; the distribution box is fixedly connected with a top plate; the sliding groove is slidably connected with a buoyancy plate; the buoyancy plate is connected with a plurality of sealing plates for isolating water vapor; the buoyancy plate is connected with a plurality of connecting rods, and all the connecting rods are fixedly connected with adjacent sealing plates.

[0006] Further explanation: the base is provided with an emergency power supply; the water outlet pipe I is provided with a solenoid valve I, and the solenoid valve I is electrically connected to the distribution box, and power is supplied to the solenoid valve I through the distribution box; the water outlet pipe I is also provided with a solenoid valve II, and the solenoid valve II is electrically connected to the emergency power supply.

[0007] Further explanation: the water inlet pipe is connected to the bottom of the sliding groove; the top plate is set to be hollow, and a plurality of water outlets II are set on the rear side of the top plate; the water cooling heat sink is provided with a connecting pipe, and the connecting pipe is connected to the top plate.

[0008] Further explanation: the top plate is provided with a receiving groove, and the receiving groove is snap-fitted with the sealing plate and the upper end of the connecting rod.

[0009] Further explanation, it also includes an electric push rod I and an extrusion block; a plurality of electric push rods I are fixedly connected to the base, and the electric push rod I is electrically connected to the emergency power supply; the telescopic ends of all the electric push rods I on the left are commonly fixedly connected to an extrusion block, and the telescopic ends of all the electric push rods I on the right are commonly fixedly connected to another extrusion block, and the extrusion block is provided with an avoidance groove I, and the avoidance groove I is plugged into and matched with the sealing plate.

[0010] Further description, it also includes a limit rod and a rotation rod; the buoyancy plate and the sealing plate are arranged to be slidably connected; each connecting rod is rotatably connected to a limit rod, and a limit part is arranged at the lower part of each limit rod, and the connecting rod is provided with a lower avoidance groove II, and the limit part passes through the avoidance groove II; the buoyancy plate is provided with a rotation groove, and an avoidance groove III is arranged in the rotation groove, and the avoidance groove III passes through the lower side of the buoyancy plate, and the limit part can slide in the avoidance groove II, the rotation groove and the avoidance groove III; each connecting rod is rotatably connected to a rotation rod, and the rotation rod is fixedly connected to the adjacent limit rod.

[0011] Further description, the surface of the rotating rod is provided with an anti-skid groove.

[0012] Further description, a sealing strip is provided at the upper opening of the sliding groove.

[0013] Further explanation, it also includes an electric push rod II and a limit plate; a top plate is fixedly connected to a plurality of rectangularly distributed electric push rods II; the telescopic ends of every two front and rear corresponding electric push rods II are commonly fixedly connected to the limit plate, and the position of the limit plate corresponds to the accommodating groove.

[0014] To further explain, a transverse plate portion is provided at the upper end of the sealing plate.

[0015] The beneficial effects of the present invention are as follows: the present invention allows water to flow through the water-cooling heat sink, so that the water-cooling heat sink always maintains a low temperature, thereby assisting the fan to dissipate heat for the electrical components, greatly improving the heat dissipation effect for the electrical components, and by allowing water to flow into the sliding groove, the buoyancy plate, the sealing plate and the connecting rod move upward, and the sealing plate blocks the splashes of water when the waves hit the base, preventing the splashes from passing through the heat dissipation holes on the distribution box into the distribution box, causing the problem of short circuit in the internal circuit of the distribution box;

[0016] The present invention blocks the moisture at night by entering the containing groove through the upper end of the sealing plate, so that the moisture at night cannot enter the distribution box, and prevents the moisture from entering the distribution box through the heat dissipation holes on the distribution box and adhering to the electrical components of the distribution box, which may easily cause the problem of short circuit of the electrical components.

[0017] The present invention squeezes the water in the sliding groove by the squeezing block, so that the water level in the sliding groove rises, and the buoyancy plate, the sealing plate and the connecting rod move upward to fit with the receiving groove, so that the distribution box is sealed in the case of a short circuit, so that the external oxygen cannot enter the distribution box, and the problem of short circuit causing some wires or electrical components to catch fire and cause a fire is avoided;

[0018] The present invention clamps the horizontal plate portion by the limiting plate so that the horizontal plate portion cannot move downward, thereby preventing the sealing plate from being separated from the receiving groove, avoiding the sealing plate from shaking significantly, resulting in the sealing plate and the receiving groove being unable to maintain a fitting state, resulting in a poor sealing effect of the sealing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the energy-saving power distribution cabinet for photovoltaic power generation disclosed by the present invention;

[0020] Figure 2 A schematic diagram of the combined structure of a base, a distribution box and a top plate disclosed in the energy-saving distribution cabinet for photovoltaic power generation of the present invention;

[0021] Figure 3 A cross-sectional view of a distribution box and a top plate disclosed in the energy-saving distribution cabinet for photovoltaic power generation of the present invention;

[0022] Figure 4 for Figure 3 A magnified image of point A;

[0023] Figure 5 It is a structural schematic diagram of a water cooling and heat dissipation frame disclosed in the energy-saving power distribution cabinet for photovoltaic power generation of the present invention;

[0024] Figure 6 A schematic diagram of the combined structure of a water-cooling heat sink and a top plate disclosed in the energy-saving power distribution cabinet for photovoltaic power generation of the present invention;

[0025] Figure 7A schematic diagram of the combined structure of a base and a sealing plate disclosed in the energy-saving power distribution cabinet for photovoltaic power generation of the present invention;

[0026] Figure 8 It is a schematic diagram of the combined structure of the base, the electric push rod I and the extrusion block disclosed in the energy-saving distribution cabinet for photovoltaic power generation of the present invention;

[0027] Fig. 9 for Figure 8 A magnified view of point B;

[0028] Fig.10 A schematic diagram of the sliding groove structure of the base disclosed in the energy-saving distribution cabinet for photovoltaic power generation of the present invention;

[0029] Fig.11 A cross-sectional view of a base disclosed by the energy-saving power distribution cabinet for photovoltaic power generation of the present invention;

[0030] Fig.12 A schematic diagram of the combined structure of the buoyancy plate, the sealing plate and the connecting rod disclosed in the energy-saving distribution cabinet for photovoltaic power generation of the present invention;

[0031] Fig.13 A cross-sectional view of a buoyancy plate disclosed in the energy-saving distribution cabinet for photovoltaic power generation of the present invention;

[0032] Fig.14 This is a cross-sectional view of the connecting rod disclosed in the energy-saving distribution cabinet for photovoltaic power generation of the present invention.

[0033] In the above drawings: 1-base, 2-distribution box, 3-water cooling rack, 4-fan, 5-top plate, 6-buoyancy plate, 7-sealing plate, 8-connecting rod, 9-pump, 101-electric push rod I, 102-extrusion block, 201-limiting rod, 202-rotating rod, 301-electric push rod II, 302-limiting plate, 1001-sliding groove, 1002-water outlet pipe I, 1003-water outlet I, 1004-water flow groove, 3001-heat conduction plate, 3002-water inlet pipe, 3 003-water outlet pipe Ⅱ, 3004-connecting pipe, 5001-water outlet Ⅱ, 5002-receiving groove, 6001-rotating groove, 6002-avoidance groove Ⅲ, 7001-cross plate part, 8001-avoidance groove Ⅱ, 10201-avoidance groove Ⅰ, 20101-limiting part, 100201-solenoid valve Ⅰ, 100202-solenoid valve Ⅱ, 300201-solenoid valve Ⅲ, 300202-solenoid valve Ⅳ, 300301-solenoid valve Ⅵ, 300401-solenoid valve Ⅴ. DETAILED DESCRIPTION

[0034] The present invention will now be described more fully below with reference to the accompanying drawings, in which currently preferred embodiments of the present invention are shown. However, the present invention may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and these embodiments fully convey the scope of the present invention to the skilled person.

[0035] Example 1

[0036] An energy-saving distribution cabinet for photovoltaic power generation, such as Figure 1-Figure 14 As shown, it includes a base 1 and a distribution box 2; the base 1 is fixedly connected to the distribution box 2;

[0037] It also includes a water-cooled heat sink 3, a fan 4, a top plate 5, a buoyancy plate 6, a sealing plate 7, a connecting rod 8 and a pump 9; the base 1 is provided with a sliding groove 1001, the base 1 is provided with a water flow groove 1004, and the water flow groove 1004 is connected to the bottom of the sliding groove 1001; the rear side of the distribution box 2 is fixedly connected with a water-cooled heat sink 3, and the water-cooled heat sink 3 is arranged to be hollow, and the water-cooled heat sink 3 is provided with a heat conducting plate 3001, and the water-cooled heat sink 3 is provided with a water inlet pipe 3002; the base 1 is fixedly connected with a pump 9, and the water inlet pipe 3002 is connected with the pump 9, and the water-cooled heat sink 3 is provided with a water outlet pipe II 3003, and the water outlet pipe II 3003 is connected to the The water flow trough 1004 is connected; the base 1 is provided with a water outlet pipe Ⅰ1002, and the water outlet pipe Ⅰ1002 is connected to the sliding groove 1001, the base 1 is provided with a water outlet port Ⅰ1003, and the water outlet port Ⅰ1003 is connected to the sliding groove 1001, and the water outlet port Ⅰ1003 is above the water outlet pipe Ⅰ1002; the distribution box 2 is fixedly connected with two fans 4; the distribution box 2 is fixedly connected with a top plate 5; the sliding groove 1001 is slidably connected with a buoyancy plate 6; the buoyancy plate 6 is connected with a plurality of sealing plates 7; the buoyancy plate 6 is connected with a plurality of connecting rods 8, and all the connecting rods 8 are fixedly connected with adjacent sealing plates 7; the splashing water is blocked by the sealing plate 7.

[0038] The base 1 is provided with an emergency power supply; the water outlet pipe Ⅰ1002 is provided with a solenoid valve Ⅰ100201, and the solenoid valve Ⅰ100201 is electrically connected to the distribution box 2, and the solenoid valve Ⅰ100201 is powered by the distribution box 2; the water outlet pipe Ⅰ1002 is also provided with a solenoid valve Ⅱ100202, and the solenoid valve Ⅱ100202 is electrically connected to the emergency power supply.

[0039] The water inlet pipe 3002 is connected to the bottom of the sliding groove 1001, and the water inlet pipe 3002 is provided with an electromagnetic valve III 300201, and the electromagnetic valve III 300201 is located at the connecting port between the water inlet pipe 3002 and the outside, and the water inlet pipe 3002 is provided with an electromagnetic valve IV 300202, and the electromagnetic valve IV 300202 is located at the connecting port between the water inlet pipe 3002 and the sliding groove 1001; the top plate 5 is set to be hollow, and a plurality of water outlets II 5001 are set on the rear side of the top plate 5; the water cooling heat sink 3 is provided with a connecting pipe 3004, and the connecting pipe 3004 is connected to the top plate 5, and the connecting pipe 3004 is provided with an electromagnetic valve V 300401; the water outlet pipe II 3003 is provided with an electromagnetic valve VI 300301.

[0040] The top plate 5 is provided with a receiving groove 5002, and the receiving groove 5002 is engaged with the sealing plate 7 and the upper end of the connecting rod 8. The receiving groove 5002 improves the sealing between the sealing plate 7 and the top plate 5, and prevents water vapor from entering the inside through the gap between the sealing plate 7 and the top plate 5.

[0041] It also includes an electric push rod Ⅰ101 and an extrusion block 102; eight electric push rods Ⅰ101 are fixedly connected to the base 1, and the electric push rod Ⅰ101 is electrically connected to the emergency power supply; the telescopic ends of all the electric push rods Ⅰ101 located on the left are commonly fixedly connected to an extrusion block 102, and the telescopic ends of all the electric push rods Ⅰ101 located on the right are commonly fixedly connected to another extrusion block 102, and the extrusion block 102 is provided with an avoidance groove Ⅰ10201, and the avoidance groove Ⅰ10201 is plugged into the sealing plate 7.

[0042] It also includes a limit rod 201 and a rotating rod 202; the buoyancy plate 6 and the sealing plate 7 are arranged to be slidably connected; each connecting rod 8 is rotatably connected to a limit rod 201, and a limit portion 20101 is arranged at the lower part of each limit rod 201, and the connecting rod 8 is provided with a lower avoidance groove II 8001, and the limit portion 20101 passes through the avoidance groove II 8001; the buoyancy plate 6 is provided with a rotating groove 6001, and an avoidance groove III 6002 is arranged in the rotating groove 6001, and the avoidance groove III 6002 passes through the lower side of the buoyancy plate 6, and the limit portion 20101 can slide in the avoidance groove II 8001, the rotating groove 6001 and the avoidance groove III 6002; each connecting rod 8 is rotatably connected to a rotating rod 202, and the rotating rod 202 is fixedly connected to the adjacent limit rod 201.

[0043] The surface of the rotating rod 202 is provided with an anti-skid groove, which is convenient for the staff to rotate the rotating rod 202.

[0044] A sealing strip is provided at the upper opening of the sliding groove 1001 to enhance the sealing between the sliding groove 1001 and the sealing plate 7, thereby preventing moisture in the sliding groove 1001 from entering the upper part of the base 1 through the sliding groove 1001 and the sealing plate 7, thereby affecting the use of the distribution box 2.

[0045] The working steps of the above embodiment are: in the initial state, the solenoid valve III 300201, the solenoid valve VI 300301, the solenoid valve I 100201 and the solenoid valve II 100202 are all in the open state, and the solenoid valve IV 300202 and the solenoid valve V 300401 are in the closed state; when the photovoltaic power station starts to generate electricity, the generated electric energy is allocated through the distribution box 2, so that the electrical components inside the distribution box 2 start to operate, the fan 4 is controlled to start, and the fan 4 rotates to drive the outside air into the distribution box 2, thereby dissipating the heat inside the distribution box 2, and the pump 9 is controlled to start, and the lake The water in the water is drawn into the water inlet pipe 3002 through the opened electromagnetic valve III 300201, and then enters the water-cooling heat sink 3, and then flows through the water-cooling heat sink 3 and flows into the water flow trough 1004 from the water outlet pipe II 3003, and then flows into the sliding groove 1001 from the water flow trough 1004; the heat generated by the electrical components will be transferred to the water-cooling heat sink 3 through the heat conduction plate 3001, and the flowing water of the water-cooling heat sink 3 will absorb the heat, so that the water-cooling heat sink 3 always maintains a low temperature, thereby assisting the fan 4 to dissipate heat for the electrical components, greatly improving the heat dissipation effect of the electrical components.

[0046] When water flows into the sliding groove 1001, it will gradually accumulate in the sliding groove 1001. In the process of gradual accumulation of water in the sliding groove 1001, the buoyancy plate 6 will also gradually move upward, and the buoyancy plate 6 drives the sealing plate 7 and the connecting rod 8 to move upward. When the water in the sliding groove 1001 accumulates to the same height as the water surface of the outlet pipe Ⅰ1002, the water will flow out through the outlet pipe Ⅰ1002 and flow back into the lake. The water surface in the sliding groove 1001 no longer rises, the buoyancy plate 6 stops moving upward, and the sealing plate 7 and the connecting rod 8 stop moving upward. At this time, the sealing plate 7 has not yet contacted the top plate 5, and is as shown in FIG. Figure 1 In the state shown, the upper side of the sealing plate 7 is at three-quarters of the height of the distribution box 2. The sealing plate 7 blocks the splashing water when the waves hit the base 1, preventing the splashing water from passing through the heat dissipation holes on the distribution box 2 into the distribution box 2, causing the problem of short circuit in the internal circuit of the distribution box 2; and at this time, the airflow driven by the fan 4 can flow between the sealing plate 7 and the top plate 5, without affecting the heat dissipation effect in the distribution box 2.

[0047] When it is night, there is no sunshine, the photovoltaic power station cannot generate electricity, and the electrical components in the distribution box 2 will also stop running. Or on rainy days, the photovoltaic power station has low power generation efficiency and the electrical components in the distribution box 2 have low heat dissipation requirements. The water cooling rack 3 and the fan 4 can be stopped for heat dissipation, and the solenoid valve Ⅰ100201 is controlled to be closed, so that the water in the sliding groove 1001 cannot flow out through the outlet pipe Ⅰ1002, and the water level in the sliding groove 1001 continues to rise, so that the buoyancy plate 6, the sealing plate 7 and the connecting rod 8 continue to move upward. When the water level in the sliding groove 1001 rises to the outlet Ⅰ10 03, water will flow out through the water outlet Ⅰ1003, and the upper end of the sealing plate 7 will move upward to enter the receiving groove 5002 and fit with the receiving groove 5002, thereby isolating the distribution box 2 from the outside world, and at the same time the fan 4 stops rotating, the pump 9 stops delivering water, saving electricity, and entering the receiving groove 5002 through the upper end of the sealing plate 7, thereby blocking the moisture at night, so that the moisture at night cannot enter the distribution box 2, and avoiding the moisture from entering the distribution box 2 through the heat dissipation holes on the distribution box 2 and adhering to the electrical components of the distribution box 2, which may easily cause the electrical components to short-circuit.

[0048] On sunny days, the photovoltaic panels are exposed to sunlight to generate electricity, which increases the heat dissipation demand of the electrical components in the distribution box 2. Then, the solenoid valve Ⅰ100201 is controlled to open, so that the water in the sliding groove 1001 can flow out from the outlet pipe Ⅰ1002, and the water level in the sliding groove 1001 drops, so that the buoyancy plate 6, the sealing plate 7 and the connecting rod 8 move downward, and the sealing plate 7 is separated from the top plate 5. Then, the fan 4 is controlled to start rotating again, and the pump 9 is controlled to input water into the water inlet pipe 3002 again, so as to restart the heat dissipation of the electrical components; when the working When the operator needs to perform routine maintenance on the distribution box 2, the solenoid valve IV 300202 is controlled to be opened, and the solenoid valve III 300201 is closed, so that after the subsequent pump 9 is started, the water in the sliding groove 1001 will enter the water inlet pipe 3002, and at the same time, the solenoid valve VI 300301 is controlled to be closed, and the solenoid valve V 300401 is opened, so that the water in the subsequent water inlet pipe 3002 will not enter the water outlet pipe II 3003, but enter the connecting pipe 3004; then the pump 9 pumps the water in the sliding groove 1001 into the water inlet pipe 3002. The water flows into the pipe 3002, then flows through the water cooling rack 3 and enters the connecting pipe 3004, then enters the top plate 5 from the connecting pipe 3004, and then sprays out backwards from the water outlet II 5001 on the top plate 5 and flows back into the lake, thereby pumping out the water in the sliding groove 1001, causing the water level in the sliding groove 1001 to drop, and the buoyancy plate 6, the sealing plate 7 and the connecting rod 8 move downward. When the water in the sliding groove 1001 is completely pumped out, the sealing plate 7 will move downward until the upper side is aligned with the upper side of the base 1, so that the staff can Perform routine maintenance on the distribution box 2, and then after the maintenance is completed, control the solenoid valve IV 300202 to close, and the solenoid valve III 300201 to open, and control the solenoid valve VI 300301 to open, and the solenoid valve V 300401 to close, so that the subsequent pump 9 can draw external water into the water inlet pipe 3002, and then flow into the sliding groove 1001 after passing through the water-cooled heat sink 3, the water outlet pipe II 3003, and the water flow groove 1004, so that the water in the sliding groove 1001 accumulates again, and the buoyancy plate 6, the sealing plate 7 and the connecting rod 8 move upward.

[0049] During the use of the distribution box 2, due to the aging of wires and electrical components and other problems, the circuit may be short-circuited, causing the temperature of some wires or electrical components to rise rapidly, and in severe cases, they may catch fire, causing a fire; therefore, when a short circuit occurs in the circuit, the circuit breaker in the distribution box 2 quickly cuts off the power supply, and then the emergency power supply is started. At this time, due to the power outage, the pump 9 cannot transport water, so that the buoyancy plate 6, the sealing plate 7 and the connecting rod 8 cannot move upward. At this time, the emergency power supply is used to control the solenoid valve II 100202 to be closed, so that the water in the sliding groove 1001 cannot flow out of the water outlet pipe I 1002, and then the emergency power supply is used to control the electric push rod I 10 1 pushes the two squeezing blocks 102 to move in opposite directions. During the movement of the squeezing blocks 102, the water in the sliding groove 1001 is squeezed, so that the water level in the sliding groove 1001 rises, and the water cannot flow out from the water outlet pipe Ⅰ1002. Therefore, when the water level in the sliding groove 1001 rises to the water outlet Ⅰ1003, the water can flow out from the water outlet Ⅰ1003, thereby moving the buoyancy plate 6, the sealing plate 7 and the connecting rod 8 upward, so that the sealing plate 7 fits with the containing groove 5002, thereby sealing the distribution box 2 in the case of a short circuit, so that the external oxygen cannot enter the distribution box 2, and the problem of fire caused by short circuit is avoided.

[0050] When the extrusion block 102 moves to fit the inner left side or inner right side of the sliding groove 1001, the electric push rod I101 stops pushing, and the avoidance groove I10201 will be aligned with the sealing plate 7; when the staff comes to repair, because the distribution box 2 is in a short-circuit state at this time, the water in the sliding groove 1001 cannot be pumped out by the pump 9, resulting in the buoyancy plate 6 and the sealing plate 7 cannot be lowered. Therefore, the staff can rotate the rotating rod 202, and the rotating rod 202 drives the limiting rod 201 to rotate, so that the limiting rod 201 rotates counterclockwise from a top-down perspective. When the limiting part 20101 rotates in the rotating groove 6001 to align with the corresponding avoidance groove III6002, the limiting part 20101 can pass through the avoidance groove III600 2 moves downward to the bottom of the buoyancy plate 6, and then rotates all the rotating rods 202 in sequence to align all the limiting parts 20101 with the corresponding avoidance grooves III 6002. Then the staff can push the connecting rod 8 and the sealing plate 7 to move downward, so that the sealing plate 7 passes through the buoyancy plate 6 and moves downward. When the sealing plate 7 moves downward to the extrusion block 102, the sealing plate 7 will enter the avoidance groove I 10201 to prevent the extrusion block 102 from blocking the sealing plate 7 from moving downward. When the sealing plate 7 moves downward to the lower side surface contacting the bottom of the avoidance groove I 10201, the upper side surface of the sealing plate 7 will move to align with the upper side surface of the base 1, thereby completing the downward movement of the sealing plate 7, and preventing the sealing plate 7 and the connecting rod 8 from blocking the staff from repairing the distribution box 2.

[0051] When the staff has completed the maintenance of the distribution box 2, the staff pulls the sealing plate 7 and the connecting rod 8 upward. When the sealing plate 7 moves upward to fit with the accommodating groove 5002, the limiting portion 20101 rises to be horizontally aligned with the rotating groove 6001. At this time, the rotating rod 202 is rotated to make the limiting rod 201 rotate clockwise from a top view. When the limiting rod 201 rotates into the rotating groove 6001, the staff stops rotating the rotating rod 202 so that the limiting portion 20101 is no longer aligned with the avoidance groove III 6002. The limiting portion 201 is aligned with the avoiding groove III 6002 through the rotating groove 6001. 01 limit, so that the limit rod 201 and the buoyancy plate 6 cannot be separated, so that the buoyancy plate 6 and the sealing plate 7 are reconnected together, and then the solenoid valve II 100202 is controlled to open by the emergency power supply. Then, after the power supply of the distribution box 2 is restored, the solenoid valve I 100201 is controlled to be in an open state, and then the water in the sliding groove 1001 flows out from the outlet pipe I 1002, so that the buoyancy plate 6, the sealing plate 7 and the connecting rod 8 move downward, and the sealing plate 7 is separated from the receiving groove 5002. Then the fan 4 and the pump 9 are controlled to start, and the heat dissipation work of the distribution box 2 is restarted.

[0052] Example 2

[0053] On the basis of Example 1, Figure 3 , Figure 4 , Figure 6 and Fig.12 As shown, it also includes an electric push rod II 301 and a limit plate 302; the top plate 5 is fixed with four rectangularly distributed electric push rods II 301; the telescopic ends of every two front and rear corresponding electric push rods II 301 are commonly fixed with the limit plate 302, and the position of the limit plate 302 corresponds to the accommodating groove 5002.

[0054] A transverse plate portion 7001 is provided at the upper end of the sealing plate 7 .

[0055] The working steps of the above embodiment are as follows: when the sealing plate 7 moves upward to fit with the receiving groove 5002, the buoyancy plate 6 supports the sealing plate 7 by buoyancy; there is often wind on the lake surface, and when the wind is strong, the sealing plate 7 will shake, and the buoyancy of the buoyancy plate 6 cannot provide a stable support, so the sealing plate 7 will shake greatly, resulting in the sealing plate 7 and the receiving groove 5002 being unable to maintain a fit state, so that the sealing effect of the sealing plate 7 is poor, so after the sealing plate 7 and the receiving groove 5002 are fitted, the horizontal plate portion 7001 It is located above the limit plate 302, and then the electric push rod II 301 is controlled to push the two limit plates 302 to move toward each other. When the limit plate 302 moves to fit with the sealing plate 7, the electric push rod II 301 stops pushing. At this time, the limit plate 302 will jam the horizontal plate part 7001, making it unable to move downward, so that the sealing plate 7 cannot be separated from the receiving groove 5002, avoiding the sealing plate 7 from shaking significantly, resulting in the sealing plate 7 and the receiving groove 5002 being unable to maintain a fit state, resulting in the sealing effect of the sealing plate 7 being poor.

[0056] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. An energy-saving distribution cabinet for photovoltaic power generation, comprising a base (1) and a distribution box (2); the base (1) is fixedly connected to the distribution box (2); the characteristics are: The invention also comprises a water-cooling heat sink (3), a fan (4), a top plate (5), a buoyancy plate (6), a sealing plate (7), a connecting rod (8) and a pump (9); the base (1) is provided with a sliding groove (1001), the base (1) is provided with a water flow groove (1004), and the water flow groove (1004) is connected to the bottom of the sliding groove (1001); the rear side of the distribution box (2) is fixedly connected with a water-cooling heat sink (3) for auxiliary heat dissipation, the water-cooling heat sink (3) is arranged to be hollow, the water-cooling heat sink (3) is provided with a heat conducting plate (3001), and the water-cooling heat sink (3) is provided with a water inlet pipe (3002); the base (1) is fixedly connected with a pump (9), and the water inlet pipe (3002) is connected to the pump (9), and the water-cooling heat sink (3) is provided with a water outlet pipe II (3003), and the outlet pipe II (3004) is connected to the pump (9). The water pipe II (3003) is connected to the water flow trough (1004); the base (1) is provided with a water outlet pipe I (1002), and the water outlet pipe I (1002) is connected to the sliding groove (1001); the base (1) is provided with a water outlet port I (1003), and the water outlet port I (1003) is connected to the sliding groove (1001), and the water outlet port I (1003) is located above the water outlet pipe I (1002); the distribution box (2) is fixedly connected to a plurality of fans (4); the distribution box (2) is fixedly connected to a top plate (5); the sliding groove (1001) is slidably connected to a buoyancy plate (6); the buoyancy plate (6) is connected to a plurality of sealing plates (7) for isolating water vapor; the buoyancy plate (6) is connected to a plurality of connecting rods (8), and all the connecting rods (8) are fixedly connected to adjacent sealing plates (7); The invention also comprises a limit rod (201) and a rotating rod (202); the buoyancy plate (6) and the sealing plate (7) are arranged to be slidably connected; each connecting rod (8) is rotatably connected to a limit rod (201), and each limit rod (201) is provided with a limit portion (20101) at the lower part, and the connecting rod (8) is provided with a lower avoidance groove II (8001), and the limit portion (20101) passes through the avoidance groove II (8001); the buoyancy plate (6) is provided with a rotating The buoyancy plate (6) is provided with an avoidance groove III (6002) in the rotation groove (6001), and the avoidance groove III (6002) passes through the lower side of the buoyancy plate (6), and the limiting portion (20101) can slide in the avoidance groove II (8001), the rotation groove (6001) and the avoidance groove III (6002); each connecting rod (8) is rotatably connected to a rotation rod (202), and the rotation rod (202) is fixedly connected to an adjacent limit rod (201).

2. An energy-saving distribution cabinet for photovoltaic power generation according to claim 1, characterized in that: The base (1) is provided with an emergency power supply; the water outlet pipe I (1002) is provided with a solenoid valve I (100201), and the solenoid valve I (100201) is electrically connected to the distribution box (2), and the solenoid valve I (100201) is powered by the distribution box (2); the water outlet pipe I (1002) is also provided with a solenoid valve II (100202), and the solenoid valve II (100202) is electrically connected to the emergency power supply.

3. An energy-saving distribution cabinet for photovoltaic power generation according to claim 2, characterized in that: The water inlet pipe (3002) is connected to the bottom of the sliding groove (1001); the top plate (5) is configured to be hollow, and a plurality of water outlets II (5001) are provided on the rear side of the top plate (5); the water cooling heat sink (3) is provided with a connecting pipe (3004), and the connecting pipe (3004) is connected to the top plate (5).

4. An energy-saving distribution cabinet for photovoltaic power generation according to claim 3, characterized in that: The top plate (5) is provided with a receiving groove (5002), and the receiving groove (5002) is engaged with the sealing plate (7) and the upper end of the connecting rod (8).

5. An energy-saving distribution cabinet for photovoltaic power generation according to claim 3, characterized in that: It also includes an electric push rod I (101) and an extrusion block (102); a plurality of electric push rods I (101) are fixedly connected to the base (1), and the electric push rods I (101) are electrically connected to an emergency power supply; the telescopic ends of all the electric push rods I (101) located on the left are commonly fixedly connected to an extrusion block (102), and the telescopic ends of all the electric push rods I (101) located on the right are commonly fixedly connected to another extrusion block (102), and the extrusion block (102) is provided with an avoidance groove I (10201), and the avoidance groove I (10201) is plug-fitted with the sealing plate (7).

6. An energy-saving distribution cabinet for photovoltaic power generation according to claim 1, characterized in that: The surface of the rotating rod (202) is provided with an anti-slip groove.

7. An energy-saving distribution cabinet for photovoltaic power generation according to claim 1, characterized in that: A sealing strip is provided at the upper opening of the sliding groove (1001).

8. An energy-saving distribution cabinet for photovoltaic power generation according to claim 7, characterized in that: It also includes an electric push rod II (301) and a limit plate (302); the top plate (5) is fixedly connected to a plurality of electric push rods II (301) distributed in a rectangular shape; the telescopic ends of every two electric push rods II (301) corresponding to each other in the front and rear are jointly fixedly connected to the limit plate (302), and the position of the limit plate (302) corresponds to the accommodating groove (5002).

9. An energy-saving distribution cabinet for photovoltaic power generation according to claim 8, characterized in that: A transverse plate portion (7001) is provided at the upper end of the sealing plate (7).

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