A solar photovoltaic busbar box and its installation method

Abstract

The present invention relates to the technical field of photovoltaic busbar boxes, and specifically relates to a solar photovoltaic busbar box and its installation method. The busbar box is provided with an electrical compartment on it. A heat dissipation mechanism is arranged inside the electrical compartment. The heat dissipation mechanism includes a right-angle connecting pipe and a copper pipe. A semiconductor refrigeration ring is arranged on the copper pipe. Air supply boxes are arranged at one end of each right-angle connecting pipe. A fan is arranged inside the air supply box. An inclined cavity is formed on one side surface of the busbar box. The inclined cavity is communicated with external air through air passing holes. In the whole busbar box of the present invention, it is almost in a sealed state. The trapezoidal heat dissipation mechanism can avoid the direct inflow of air currents. The semiconductor refrigeration ring transfers heat to the outside of the busbar box through the copper pipe. The fan can accelerate the air flow. The inclined cavity connected to the air supply box is arranged obliquely downward to prevent rainwater from pouring into the inside of the heat dissipation mechanism through the air passing holes, improving the heat dissipation effect and waterproof performance of the device.

Description

Technical Field

[0001] The present invention relates to a busbar box and an installation method thereof, in particular to a solar photovoltaic busbar box and an installation method thereof, belonging to the technical field of photovoltaic busbar boxes. Background Art

[0002] With the popularization of the concept of new energy, the application of photovoltaic power generation is becoming more and more extensive. In the existing technology, the basic equipment for solar photovoltaic power generation generally includes photovoltaic cell components, photovoltaic array brackets, photovoltaic busbar boxes, photovoltaic DC distribution cabinets, photovoltaic inverters, photovoltaic AC distribution cabinets, etc. Among them, the photovoltaic busbar box is a wiring device that ensures the orderly connection and busbar function of photovoltaic modules in the solar power generation system, and plays a crucial role in the photovoltaic power generation system.

[0003] When the solar photovoltaic busbar box is in use, a large amount of heat is generated due to the operation of the components inside the box. The existing heat dissipation structure of the busbar box is relatively simple, and it cannot sufficiently reduce the temperature inside the busbar box. At the same time, the waterproof effect is also relatively weak, making it easy for external water stains to enter the box through the heat dissipation holes, resulting in the damage of the electrical components due to water, leading to poor waterproof and heat dissipation performance of the box. At the same time, it is not convenient to operate when disassembling, assembling and repairing the components, increasing the work burden of the operators.

[0004] Chinese Patent CN 209709477 U discloses "a glass exterior wall cleaning device", including: a placement plate, a box door and a box body; the box door is rotatably connected to the edge of one side outer wall of the box body through a connecting hinge, the number of the placement plates is multiple, and the multiple placement plates are arranged in parallel and equidistantly on the inner wall of the box body. The upper ends on both sides of the outer wall of the box body are symmetrically provided with heat dissipation holes, and the cross-section of the heat dissipation holes is a circular structure. A hollowed-out plate is arranged at the bottom of the box body. In the present invention, the photovoltaic busbar box can play a role of ventilation and heat dissipation for the inside of the box through the provided heat dissipation holes, ensuring that the inside of the box is in a relatively dry operating state. At the same time, with the waterproof protection effect of the waterproof cover, it can avoid the phenomenon that external water stains enter the box through the heat dissipation holes and cause water pollution to the photovoltaic busbar box, improving the waterproofness of the photovoltaic busbar box, and thus enhancing the use safety of the photovoltaic busbar box. However, only the heat dissipation holes are provided, and the temperature cannot be dissipated into the air in a timely and effective manner. Moreover, water vapor and other moisture will also enter the inside of the busbar box through the heat dissipation holes. Therefore, the heat dissipation efficiency and waterproof performance are relatively low.

[0005] Therefore, it is urgent to improve the solar photovoltaic busbar box to solve the above existing problems. Summary of the Invention

[0006] The object of the present invention is to provide a solar photovoltaic busbar box and an installation method thereof. The entire busbar box is almost in a sealed state. The trapezoidal heat dissipation mechanism can avoid the direct inflow of air. The semiconductor refrigeration circle transfers heat to the outside of the busbar box through a copper pipe. The fan can accelerate the air flow. The inclined cavity connected to the air supply box is arranged obliquely downward to prevent rainwater from pouring into the inside of the heat dissipation mechanism through the air passing holes, improving the heat dissipation effect and waterproof performance of the device.

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0008] A solar photovoltaic busbar box, including a busbar box, an electrical compartment is provided on the busbar box, a heat dissipation mechanism is arranged inside the electrical compartment, the heat dissipation mechanism is a trapezoidal structure, and the heat dissipation mechanism is used to cool the inside of the electrical compartment. The heat dissipation mechanism includes a right-angle connecting pipe and a copper pipe, and both ends of the copper pipe are threadedly connected to the right-angle connecting pipe;

[0009] Through the above technical solutions, a trapezoidal heat dissipation mechanism is arranged inside the busbar box. The trapezoidal heat dissipation mechanism can avoid the direct inflow of air. The entire busbar box is almost in a sealed state. While waterproofing, it can also directly prevent the electrical components inside the busbar box from directly contacting the air, effectively preventing the aging of the electrical components and improving the service life of the busbar box. The arranged heat dissipation mechanism can, on the one hand, maintain the sealing of the busbar box, prevent impurities such as rainwater from entering the inside of the electrical compartment, and at the same time effectively transfer the heat generated inside the electrical compartment to the outside of the busbar box, thereby achieving the purpose of cooling the inside of the electrical compartment and improving the heat dissipation effect of the busbar box;

[0010] A semiconductor refrigeration circle is arranged on the copper pipe. The semiconductor refrigeration circle includes a refrigeration circle heat absorption surface and a refrigeration circle heat dissipation surface. The refrigeration circle heat dissipation surface is fixedly connected to the outer side surface of the copper pipe, and the refrigeration circle heat absorption surface is arranged inside the electrical compartment;

[0011] Through the above technical solutions, a semiconductor refrigeration circle is arranged on the copper pipe. The refrigeration circle heat dissipation surface on the semiconductor refrigeration circle is directly fixedly connected to the copper pipe, and the refrigeration circle heat absorption surface is arranged inside the electrical compartment. Therefore, the heat generated inside the electrical compartment will be absorbed by the refrigeration circle heat absorption surface on the semiconductor refrigeration circle. The refrigeration circle heat absorption surface will further transfer the heat to the refrigeration circle heat dissipation surface, and transfer the temperature to the copper pipe again through heat conduction. The copper pipe transfers the generated heat to the outside of the electrical compartment through the right-angle connecting pipe. Of course, the effect will be better when there is wind. When the air flow pours in from one of the right-angle connecting pipes, the air flow can be discharged through the other right-angle connecting pipe. The structure is simple and easy to use, thereby accelerating the cooling efficiency;

[0012] One end of each of the right-angled connecting pipes away from the copper pipe is fixedly provided with a blower box. Inside the blower box, a blower is fixedly provided through a plurality of blower support frames. A blower fan blade is arranged at the output end of the blower, and the blower fan blade is arranged inside the blower box;

[0013] Through the above technical solutions, further, a blower is variably arranged inside the blower box. Blowers are arranged inside both blower boxes, and the rotation directions of the blower fan blades on the two blowers are the same, avoiding the airflow collision caused by opposite directions and affecting the heat dissipation efficiency. It can accelerate the air flow under windless conditions and improve the heat dissipation efficiency;

[0014] An inclined cavity is formed on one side surface of the busbar box corresponding to the blower box. The blower box is fixedly connected to the busbar box, and the blower box is communicated with the inclined cavity. The inclined cavity is used to prevent rainwater from entering the heat dissipation mechanism, and the inclined cavity is communicated with the external air through air passing holes. The height of the connection between the blower box and the inclined cavity is higher than that of the air passing holes;

[0015] Through the above technical solutions, the inclined cavity connected to the blower box is arranged obliquely downward. Even if the busbar box is outdoors and in the rainy season, rainwater cannot pour into the inclined cavity from the air passing holes, and even less can pour into the inside of the heat dissipation mechanism from the inside of the inclined cavity. Therefore, the waterproof performance of the device can be improved and the service life of the device can be extended.

[0016] Preferably, a plurality of uniformly distributed air vent holes are formed on one side surface of the right-angled connecting pipe away from the blower box, and the air vent holes are communicated with the blower box;

[0017] Through the above technical solutions, the air vent holes on the right-angled connecting pipe are arranged inside the electrical appliance compartment. On the one hand, it can effectively ventilate the inside of the electrical appliance compartment. On the other hand, it can prevent rainwater from directly entering the inside of the heat dissipation mechanism or the electrical appliance compartment. The structure is simple and the ventilation effect of the device is improved.

[0018] Preferably, a sealed cover compartment is formed on one side surface of the busbar box. A box body seal cover is slidably arranged inside the sealed cover compartment. Symmetrically distributed convex blocks are arranged on the upper and lower side surfaces of the sealed cover compartment. A U-shaped sliding groove for slidably connecting with the convex blocks is formed on the box body seal cover;

[0019] Through the above technical solutions, the traditional busbar box door is of a flip type. Therefore, during the inspection process, the entire door needs to be opened, which will expose all the components inside the electrical compartment to the air, accelerating the aging of the components. At the same time, during the process of flipping the door, the door will also occupy a large amount of space, and it is relatively easy to cause harm to the body during the flipping process. Therefore, the utilization rate is low. During the use of this device, the box body sealing cover can be slid left and right to repair and maintain the electrical appliances on both sides respectively. If major repairs are required, the U-shaped chute on the box body sealing cover can be slid out of the convex block as a whole, so it is more convenient to repair the components inside the electrical compartment and improve the convenience of later maintenance.

[0020] Preferably, a visual window groove is provided in the middle of the box body sealing cover, a visual window is fixedly arranged inside the visual window groove, push-pull handles are provided on both sides of the visual window, and the push-pull handles are arranged on the outer side surface of the box body sealing cover;

[0021] Through the above technical solutions, when local components need to be repaired, first observe through the visual window on the visual window groove, and then slide the box body sealing cover left and right through the push-pull handle on the box body sealing cover. After sliding to the specified position, perform the inspection. The operation is convenient and the convenience of use is improved.

[0022] Preferably, a wire discharge groove is provided at the bottom of the busbar box, a plurality of uniformly distributed lead wire pipe grooves are provided at the bottom of the electrical compartment, a rubber lead wire pipe is arranged inside the lead wire pipe groove, the rubber lead wire pipe penetrates through the lead wire pipe groove and extends into the wire discharge groove, and a first fastening nut and a second fastening nut are screwed on the rubber lead wire pipe. The first fastening nut is arranged inside the electrical compartment, and the second fastening nut is arranged inside the wire discharge groove;

[0023] Through the above technical solutions, after the wire is connected to the components inside the electrical compartment, it penetrates through the rubber lead wire pipe, and then the upper end of the rubber lead wire pipe is fastened by using the first fastening nut, and the lower end of the rubber lead wire pipe is fastened by using the second fastening nut, so that the rubber lead wire pipe is closely attached to the wire, effectively improving the sealing performance of the device and preventing rainwater from entering the inside of the electrical compartment;

[0024] At the same time, the wire discharge groove at the bottom of the busbar box can protect the wire on the one hand and effectively prevent rainwater from entering on the other hand.

[0025] Preferably, a lock slot is provided on one side of the busbar box. A lock is rotatably arranged inside the lock slot. A lock head rotatably connected to the lock is arranged on the sealing cover bin. A lock head slot is provided on the side surface of the box body sealing cover close to the busbar box. The lock head slot corresponds to the lock head. After use, the box body sealing cover can be fixed on the sealing cover bin to prevent the box body sealing cover from being blown open by strong wind. The structure is simple, the operation is convenient, and the use safety is improved.

[0026] Preferably, symmetrically distributed mounting plates are fixedly arranged on both sides of the busbar box. Mounting holes are provided on the mounting plates. The mounting holes are fixedly connected to an external wall through bolts.

[0027] Preferably, a sliding groove is provided above the busbar box. The sliding groove is recessed from the upper side surface of the busbar box. Rainwater can slide along the sliding groove to the rear side surface of the busbar box, reducing the erosion of rainwater on the front side surface of the busbar box and improving the service life of the device.

[0028] Preferably, a sponge water absorption pad is fixedly arranged at the bottom of the inner side surface of the electrical appliance bin. The rubber lead wire tube penetrates through the sponge water absorption pad. The sponge water absorption pad can absorb the water vapor inside the electrical appliance bin and keep the inside of the electrical appliance bin dry.

[0029] An installation method of a solar photovoltaic busbar box includes the following steps:

[0030] S1: First, fix the semiconductor refrigeration ring on the copper tube, and then fix two right-angle connecting tubes at both ends of the copper tube respectively to complete the installation of the heat dissipation mechanism;

[0031] S2: Rotate the installed heat dissipation mechanism to make it in a trapezoidal structure, then connect the other ends of the two right-angle connecting tubes to the air supply box respectively, and fix the air supply box at the inner port of the inclined cavity, and pay attention to the height positions of the two inclined cavities;

[0032] S3: Pass the rubber lead wire tube into the inside of the lead wire tube slot and fix the upper part of the rubber lead wire tube with a first fastening nut, and fix the bottom of the rubber lead wire tube with a second fastening nut;

[0033] S4: Fix the busbar box on the wall through bolts passing through the mounting holes on the mounting plates;

[0034] S5: Snap the sliding groove on the box body sealing cover into one end of the sealing cover bin, then slide the box body sealing cover into the inside of the sealing cover bin, and lock the box body sealing cover through the lock in the lock slot.

[0035] The present invention at least has the following beneficial effects:

[0036] 1. The inside of the busbar box is provided with a trapezoidal heat dissipation mechanism. The trapezoidal heat dissipation mechanism can prevent the direct inflow of air currents. The entire busbar box is almost in a sealed state, which can not only prevent water ingress but also directly prevent the electrical components inside the busbar box from coming into direct contact with air. This can effectively prevent the aging of electrical components and extend the service life of the busbar box. The set heat dissipation mechanism can, on the one hand, maintain the sealing of the busbar box, and at the same time can effectively transfer the heat generated inside the electrical compartment to the outside of the busbar box, thereby achieving the purpose of cooling the inside of the electrical compartment and improving the heat dissipation effect of the busbar box.

[0037] 2. The cooling surface of the Peltier cooler on the Peltier cooler is directly fixedly connected to the copper pipe. The heat absorption surface of the cooler is arranged inside the electrical compartment. Therefore, the heat generated inside the electrical compartment will be absorbed by the heat absorption surface of the Peltier cooler on the Peltier cooler. The heat absorption surface of the cooler will further transfer the heat to the cooling surface of the cooler, and the temperature will be transferred to the copper pipe again through heat conduction. The copper pipe transfers the generated heat to the outside of the electrical compartment through the right-angle connecting pipe.

[0038] 3. The inclined cavity connected to the air supply box is arranged obliquely downward. Even if the busbar box is outdoors, rainwater cannot pour into the inclined cavity through the air passing holes, and even less can it pour into the inside of the heat dissipation mechanism from the inside of the inclined cavity. Therefore, the waterproof performance of the device can be improved and the service life of the device can be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0040] Figure 1 is a partial perspective view of the present invention;

[0041] Figure 2 is a perspective view of the present invention;

[0042] Figure 3 is a structural diagram of the heat dissipation mechanism of the present invention;

[0043] Figure 4 is a cross-sectional view of the heat dissipation mechanism of the present invention;

[0044] Figure 5 is a front view of the present invention;

[0045] Figure 6 is a cross-sectional view of the box body sealing cover of the present invention;

[0046] Figure 7 is a cross-sectional view of the air supply box of the present invention;

[0047] Figure 8 is a perspective view of the rubber lead pipe of the present invention.

[0048] In the figure, 1 is a busbar box, 101 is an electrical component compartment, 102 is a sealing cover compartment, 103 is a bump, 104 is a lock groove, 105 is a ventilation hole, 106 is an inclined cavity, 107 is a sliding groove, 108 is a wire slot, 109 is a lead pipe slot, 2 is a heat dissipation mechanism, 3 is a semiconductor refrigeration ring, 301 is a refrigeration ring heat absorption surface, 302 is a refrigeration ring heat dissipation surface, 4 is a right-angle connecting pipe, 401 is a ventilation hole, 5 is a box body sealing cover, 501 is a push-pull handle, 502 is a lock head groove, 503 is a U-shaped sliding groove, 504 is a viewing window groove, 6 is a viewing window, 7 is a air supply box, 701 is a fan support frame, 8 is a fan, 9 is a fan blade, 10 is a rubber lead pipe, 11 is a first fastening nut, 12 is a second fastening nut, 13 is a lock part, 14 is a lock head, 15 is a mounting plate, 16 is a mounting hole, 17 is a sponge water absorption pad, 18 is a copper pipe. Specific embodiments

[0049] The following will be combined with the drawings and embodiments to detail the implementation manner of the present application, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0050] As Figures 1-8 shown, the solar photovoltaic busbar box and its installation method provided in this embodiment include a busbar box 1. An electrical component compartment 101 is opened on the busbar box 1. A heat dissipation mechanism 2 is arranged inside the electrical component compartment 101. The heat dissipation mechanism 2 is a trapezoidal structure. The heat dissipation mechanism 2 is used to cool the inside of the electrical component compartment 101. The heat dissipation mechanism 2 includes a right-angle connecting pipe 4 and a copper pipe 18. Both ends of the copper pipe 18 are threadedly connected to the right-angle connecting pipe 4.

[0051] A trapezoidal heat dissipation mechanism 2 is arranged inside the busbar box 1. The trapezoidal heat dissipation mechanism 2 can avoid the direct inflow of air. The entire busbar box 1 is almost in a sealed state. While preventing water, it can also directly prevent the electrical components inside the busbar box 1 from directly contacting the air, which can effectively prevent the aging of electrical components and improve the service life of the busbar box 1. The arranged heat dissipation mechanism 2 can, on the one hand, maintain the sealing of the busbar box 1, prevent impurities such as rainwater from entering the inside of the electrical component compartment 101, and at the same time can effectively transfer the heat generated inside the electrical component compartment 101 to the outside of the busbar box 1 through 18, so as to achieve the purpose of cooling the inside of the electrical component compartment 101 and improve the heat dissipation effect of the busbar box 1;

[0052] At the same time, a semiconductor refrigeration ring 3 is arranged on the copper pipe 18. The semiconductor refrigeration ring 3 includes a refrigeration ring heat absorption surface 301 and a refrigeration ring heat dissipation surface 302. The refrigeration ring heat dissipation surface 302 is fixedly connected to the outer side surface of the copper pipe 18. The refrigeration ring heat absorption surface 301 is arranged inside the electrical component compartment 101;

[0053] A semiconductor refrigeration ring 3 is provided on the copper pipe 18. The refrigeration ring heat dissipation surface 302 on the semiconductor refrigeration ring 3 is directly fixedly connected to the copper pipe 18. The refrigeration ring heat absorption surface 301 is arranged inside the electrical appliance compartment 101. Therefore, the heat generated inside the electrical appliance compartment 101 will be absorbed by the refrigeration ring heat absorption surface 301 on the semiconductor refrigeration ring 3. The refrigeration ring heat absorption surface 301 will further transfer the heat to the refrigeration ring heat dissipation surface 302, and transfer the temperature to the copper pipe 18 again through heat conduction. The copper pipe 18 transfers the generated heat to the outside of the electrical appliance compartment 101 through the right-angle connecting pipe 4. Of course, if there is wind, the effect will be better. When the air flow is poured into one of the right-angle connecting pipes 4, the air flow can be discharged through the other right-angle connecting pipe 4. The structure is simple and easy to use, thus improving the cooling efficiency.

[0054] At the ends of the right-angle connecting pipes 4 far away from the copper pipe 18, air supply boxes 7 are fixedly provided. Inside the air supply boxes 7, fans 8 are fixedly provided through a plurality of fan support frames 701. On the output end of the fan 8, a fan blade 9 is provided, and the fan blade 9 is arranged inside the air supply box 7.

[0055] Fans 8 are optionally arranged inside the air supply boxes 7. Fans 8 are arranged inside both air supply boxes 7, and the rotation directions of the fan blades 9 on the two fans 8 are the same, avoiding the air flow collision caused by opposite directions and affecting the heat dissipation efficiency. It can accelerate the air flow and improve the heat dissipation efficiency under the condition of no wind.

[0056] Furthermore, on one side surface of the busbar box 1 corresponding to the air supply box 7, an inclined cavity 106 is formed. The air supply box 7 is fixedly connected to the busbar box 1 and is communicated with the inclined cavity 106. The inclined cavity 106 is used to prevent rainwater from entering the heat dissipation mechanism 2, and the inclined cavity 106 is communicated with the external air through air holes 105. The height of the connection between the air supply box 7 and the inclined cavity 106 is higher than that of the air holes 105.

[0057] Even further, the inclined cavity 106 connected to the air supply box 7 is arranged obliquely downward. Even if the busbar box 1 is outdoors and in the rainy season, rainwater cannot pour into the inclined cavity 106 from the air holes 105, and even less can pour into the inside of the heat dissipation mechanism 2 from the inside of the inclined cavity 106. Therefore, the waterproof performance of the device can be improved and the service life of the device can be extended.

[0058] On one side surface of the right-angle connecting pipe 4 far away from the air supply box 7, a plurality of uniformly distributed air holes 401 are formed. The air holes 401 are communicated with the air supply box 7. The air holes 401 on the right-angle connecting pipe 4 are arranged inside the electrical appliance compartment 101. On the one hand, it can effectively ventilate the inside of the electrical appliance compartment 101, and on the other hand, it can prevent rainwater from directly entering the inside of the heat dissipation mechanism 2 or the inside of the electrical appliance compartment 101. The structure is simple and the ventilation effect of the device is improved.

[0059] One side of the busbar box 1 is provided with a sealed cover bin 102. A box body sealed cover 5 is slidably arranged inside the sealed cover bin 102. Symmetrically distributed bumps 103 are arranged on the upper and lower side surfaces of the sealed cover bin 102. A U-shaped sliding groove 503 for slidably connecting with the bumps 103 is arranged on the box body sealed cover 5. The traditional busbar box door body is of a flip type. Therefore, during the inspection process, the entire door body needs to be opened, which will expose all the components inside the electrical appliance bin 101 to the air, accelerating the aging of the components. At the same time, during the process of flipping the door body, the door body will also occupy a large amount of space, and it is relatively easy to cause harm to the body during the flipping process. Therefore, the utilization rate is low. During the use of this device, the box body sealed cover 5 can be slid left and right to repair and maintain the electrical appliances on both sides respectively. If major repairs are required, the U-shaped sliding groove 503 on the box body sealed cover 5 can be completely slid out of the bumps 103. Therefore, it is more convenient to overhaul the components inside the electrical appliance bin 101, improving the convenience of later maintenance and repair.

[0060] A visual window groove 504 is arranged in the middle of the box body sealed cover 5. A visual window 6 is fixedly arranged inside the visual window groove 504. Push-pull handles 501 are arranged on both sides of the visual window 6. The push-pull handles 501 are arranged on the outer side surface of the box body sealed cover 5. When local components need to be repaired, first observe through the visual window 6 on the visual window groove 504, and then slide the box body sealed cover 5 left and right through the push-pull handles 501 on the box body sealed cover 5. After sliding to the designated position, carry out the inspection. The operation is convenient, improving the convenience of use.

[0061] In this embodiment, as Figure 5 shown, a wire discharge groove 108 is arranged at the bottom of the busbar box 1. A plurality of uniformly distributed lead wire tube grooves 109 are arranged at the bottom of the electrical appliance bin 101. A rubber lead wire tube 10 is arranged inside the lead wire tube grooves 109. The rubber lead wire tube 10 penetrates through the lead wire tube grooves 109 and extends into the wire discharge groove 108. A first fastening nut 11 and a second fastening nut 12 are screwed on the rubber lead wire tube 10. The first fastening nut 11 is arranged inside the electrical appliance bin 101, and the second fastening nut 12 is arranged inside the wire discharge groove 108. After the wire is connected to the components inside the electrical appliance bin 101, it penetrates through the rubber lead wire tube 10, and then the upper end of the rubber lead wire tube 10 is fastened by using the first fastening nut 11, and the lower end of the rubber lead wire tube 10 is fastened by using the second fastening nut 12, so that the rubber lead wire tube 10 is closely attached to the wire, effectively improving the sealing performance of the device and preventing rainwater from entering the inside of the electrical appliance bin 101;

[0062] At the same time, the wire discharge groove 108 at the bottom of the busbar box 1 can protect the wire on the one hand and effectively prevent rainwater from entering on the other hand.

[0063] In this embodiment, asFigure 1 As shown, a lock member groove 104 is formed on one side of the busbar box 1. A lock member 13 is rotatably arranged inside the lock member groove 104. A lock head 14 rotatably connected to the lock member 13 is arranged on the sealing cover bin 102. A lock head groove 502 is formed on one side surface of the box body sealing cover 5 close to the busbar box 1. The lock head groove 502 corresponds to the lock head 14. After use, the box body sealing cover 5 can be fixed on the sealing cover bin 102 to prevent the box body sealing cover 5 from being blown open due to excessive wind force. The structure is simple, the operation is convenient, and the use safety is improved.

[0064] Symmetrically distributed mounting plates 15 are fixedly arranged on both sides of the busbar box 1. Mounting holes 16 are formed on the mounting plates 15. The mounting holes 16 are fixedly connected to the external wall through bolts, which is convenient to fix the busbar box 1 on the wall and improve the stability of the busbar box 1.

[0065] A sliding groove 107 is formed above the busbar box 1. The sliding groove 107 is recessed from the upper side surface of the busbar box 1. Rainwater can slide along the sliding groove 107 to the rear side surface of the busbar box 1, reducing the erosion of rainwater on the front side surface of the busbar box 1 and improving the service life of the device.

[0066] A sponge water absorption pad 17 is fixedly arranged at the bottom of the inner side surface of the electrical appliance bin 101. The rubber lead pipe 10 passes through the sponge water absorption pad 17. The sponge water absorption pad 17 can absorb the water vapor inside the electrical appliance bin 101 to keep the inside of the electrical appliance bin 101 dry.

[0067] As Figures 1-8 shown, the installation method of the solar photovoltaic busbar box provided in this embodiment includes the following steps:

[0068] S1: First, fix the semiconductor refrigeration circle 3 on the copper pipe 18, and then fix the two right-angle connecting pipes 4 at both ends of the copper pipe 18 respectively to complete the installation of the heat dissipation mechanism 2;

[0069] S2: Rotate the installed heat dissipation mechanism 2 to form a trapezoidal structure, then connect the other ends of the two right-angle connecting pipes 4 to the air supply box 7 respectively, and fix the air supply box 7 at the inner port of the inclined cavity 106, and pay attention to the height positions of the two inclined cavities 106;

[0070] S3: Pass the rubber lead pipe 10 into the inside of the lead pipe groove 109 and fix the upper part of the rubber lead pipe 10 with the first fastening nut 11, and fix the bottom of the rubber lead pipe 10 with the second fastening nut 12;

[0071] S4: Fix the busbar box 1 on the wall through bolts passing through the mounting holes 16 on the mounting plates 15;

[0072] S5: Insert the sliding groove 503 on the box body sealing cover 5 into one end of the sealing cover bin 102, then slide the box body sealing cover 5 into the interior of the sealing cover bin 102, and lock the box body sealing cover 5 through the locking member 13 inside the locking member groove 104.

[0073] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but use the difference in functions of components as the criterion for distinction. As mentioned throughout the specification and claims, "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve technical problems within a certain error range and basically achieve the technical effect.

[0074] It should be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such commodity or system. Without more limitations, the element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the element.

[0075] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the technology or knowledge in related fields. And any changes and variations made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A solar photovoltaic busbar box, comprising a busbar box (1), characterized in that, The busbar box (1) is provided with an electrical appliance compartment (101). Inside the electrical appliance compartment (101), a heat dissipation mechanism (2) is arranged. The heat dissipation mechanism (2) is of a trapezoidal structure and is used to cool the inside of the electrical appliance compartment (101). The heat dissipation mechanism (2) includes a right-angle connecting pipe (4) and a copper pipe (18). Both ends of the copper pipe (18) are threadedly connected to the right-angle connecting pipe (4). A semiconductor refrigeration ring (3) is arranged on the copper pipe (18). The semiconductor refrigeration ring (3) includes a refrigeration ring heat absorption surface (301) and a refrigeration ring heat dissipation surface (302). The refrigeration ring heat dissipation surface (302) is fixedly connected to the outer side surface of the copper pipe (18), and the refrigeration ring heat absorption surface (301) is arranged inside the electrical appliance compartment (101). At one end of the right-angle connecting pipe (4) far from the copper pipe (18), air supply boxes (7) are fixedly arranged. Inside the air supply boxes (7), fans (8) are fixedly arranged through a plurality of fan support frames (701). An air supply fan blade (9) is arranged at the output end of the fan (8), and the air supply fan blade (9) is arranged inside the air supply box (7). On one side surface of the busbar box (1) corresponding to the air supply box (7), an inclined cavity (106) is opened. The air supply box (7) is fixedly connected to the busbar box (1) and is communicated with the inclined cavity (106). The inclined cavity (106) is used to prevent rainwater from entering the heat dissipation mechanism (2), and the inclined cavity (106) is communicated with the external air through air passing holes (105). The height of the connection part between the air supply box (7) and the inclined cavity (106) is higher than that of the air passing holes (105). On one side surface of the busbar box (1), a sealing cover compartment (102) is opened. Inside the sealing cover compartment (102), a box body sealing cover (5) is slidably arranged. On the upper and lower side surfaces of the sealing cover compartment (102), symmetrically distributed convex blocks (103) are arranged. On the box body sealing cover (5), a U-shaped sliding groove (503) for sliding connection with the convex blocks (103) is opened. At the bottom of the busbar box (1), a wire arranging groove (108) is opened. At the bottom of the electrical appliance compartment (101), a plurality of uniformly distributed lead wire pipe grooves (109) are opened. Inside the lead wire pipe grooves (109), rubber lead wire pipes (10) are arranged. The rubber lead wire pipes (10) penetrate through the lead wire pipe grooves (109) and extend into the wire arranging groove (108). First fastening nuts (11) and second fastening nuts (12) are threadedly connected to the rubber lead wire pipes (10). The first fastening nuts (11) are arranged inside the electrical appliance compartment (101), and the second fastening nuts (12) are arranged inside the wire arranging groove (108).

2. The solar photovoltaic busbar box according to claim 1, wherein: On one side surface of the right-angle connecting pipe (4) far from the air supply box (7), a plurality of uniformly distributed air vent holes (401) are opened, and the air vent holes (401) are communicated with the air supply box (7).

3. The solar photovoltaic busbar box according to claim 2, wherein: A visual window groove (504) is formed in the middle of the box body sealing cover (5). A visual window (6) is fixedly arranged inside the visual window groove (504). Push-pull handles (501) are formed on both sides of the visual window (6), and the push-pull handles (501) are arranged on the outer side surface of the box body sealing cover (5).

4. A solar photovoltaic busbar box according to claim 1, characterized in that: A lock part groove (104) is formed on one side of the busbar box (1). A lock part (13) is rotatably arranged inside the lock part groove (104). A lock head (14) rotatably connected to the lock part (13) is arranged on the sealing cover bin (102). A lock head groove (502) is formed on one side surface of the box body sealing cover (5) close to the busbar box (1), and the lock head groove (502) corresponds to the lock head (14).

5. A solar photovoltaic busbar box according to claim 1, characterized in that: Mounting plates (15) symmetrically distributed are fixedly arranged on both sides of the busbar box (1). Mounting holes (16) are formed in the mounting plates (15), and the mounting holes (16) are fixedly connected to an external wall through bolts.

6. The solar photovoltaic busbar box according to claim 4, characterized in that: A sliding groove (107) is formed above the busbar box (1), and the sliding groove (107) is recessed from the upper side surface of the busbar box (1).

7. A solar photovoltaic busbar box according to claim 1, characterized in that: A sponge water absorption pad (17) is fixedly arranged at the bottom of the inner side surface of the electrical appliance bin (101), and the rubber lead pipe (10) penetrates through the sponge water absorption pad (17).

8. An installation method of a solar photovoltaic busbar box according to any one of claims 1-7, characterized in that: Comprising the following steps: S1: First, fix the semiconductor refrigeration ring (3) on the copper pipe (18), and then fix the two right-angle connecting pipes (4) at both ends of the copper pipe (18) respectively to complete the installation of the heat dissipation mechanism (2). S2: Rotate the installed heat dissipation mechanism (2) to make it in a trapezoidal structure, and then connect the other ends of the two right-angle connecting pipes (4) to the air supply box (7) respectively. Fix the air supply box (7) at the inner port of the inclined cavity (106), and pay attention to the height positions of the two inclined cavities (106). S3: Insert the rubber lead pipe (10) into the lead pipe groove (109), and fix the upper part of the rubber lead pipe (10) with the first fastening nut (11), and fix the bottom of the rubber lead pipe (10) with the second fastening nut (12). S4: Fix the busbar box (1) on the wall through bolts passing through the mounting holes (16) on the mounting plates (15). S5: Snap the sliding groove (503) on the box body sealing cover (5) into one end of the sealing cover bin (102), then slide the box body sealing cover (5) into the sealing cover bin (102), and lock the box body sealing cover (5) through the lock part (13) inside the lock part groove (104).

Images