Building light storage direct-flexible direct current power distribution device

Abstract

The application relates to the technical field of building direct-current power distribution, and particularly discloses a building light-storage direct-flexible direct-current power distribution device, which comprises a cabinet body and a base, the cabinet body is arranged above the base, heat dissipation channels are symmetrically arranged on the two sides of the cabinet body, the heat dissipation channels are composed of a plurality of heat dissipation grooves arranged in an array, a lifting assembly is arranged between the base and the cabinet body, a detection assembly is arranged at the bottom of the cabinet body, two groups of blocking assemblies are arranged in the cabinet body, two groups of linkage assemblies are arranged on the cabinet body, and a resisting assembly is arranged on the base. The building light-storage direct-flexible direct-current power distribution device is characterized in that the copper sheet contact triggering structure of the detection assembly cooperates with the lifting assembly, ground water is monitored in real time, after the water meets the standard, the cabinet body is automatically lifted by the control unit, the cabinet body is separated from the water surface, the internal electrical elements are prevented from being damaged by water, the blocking assembly can be automatically driven to be dislocated to block the heat dissipation channels during the lifting of the cabinet body, sealing, moisture-proof and protection are simultaneously completed, and the defects of the traditional equipment, such as fixed height and easy water and moisture entering, are solved.

Description

Technical Field

[0001] This invention relates to the field of building DC power distribution technology, specifically to a building photovoltaic-storage DC-flexible DC power distribution device. Background Technology

[0002] Building-integrated photovoltaic (BIPV) power distribution system is a core device for realizing building-integrated photovoltaic power generation, energy storage, DC power supply, and flexible power consumption control. It is widely used in zero-carbon buildings, industrial parks, commercial complexes, residential buildings, and other scenarios. It can realize self-generation and self-consumption of green electricity in buildings, peak shaving and valley filling, and emergency power supply. It is an important component of new building power distribution systems.

[0003] Existing building-integrated photovoltaic (BIPV) and energy storage DC-DC power distribution systems are mostly fixed installation structures with inadequate height adjustment capabilities. The fixed height of the system means that during rainy weather, flood season, or in underground garages or low-lying areas, water can easily accumulate on the ground. Because the height is not adjustable, the equipment is highly susceptible to submersion, leading to water ingress, short circuits, and corrosion damage to core electrical components such as the DC bus, energy storage converter, DC circuit breaker, and DC / DC converter. This can cause power outages and electrical leakage hazards, severely limiting the adaptability of BIPV and energy storage DC-DC power distribution systems in different application scenarios and reducing the stability and lifespan of the equipment. Summary of the Invention

[0004] This invention provides a building-integrated photovoltaic-storage DC-DC power distribution device, which aims to solve the problems mentioned in the background art.

[0005] The present invention provides a building-mounted photovoltaic-storage DC-DC power distribution device, comprising: The cabinet and the base, with the cabinet positioned on top of the base; The cabinet has symmetrical ventilation channels on both sides, which are composed of multiple ventilation slots arranged in a row. The lifting component is located between the base and the cabinet and is used to adjust the distance between the cabinet and the base; The detection component is located at the bottom of the cabinet. The detection component is used to detect the water level. When the water level poses a threat to the cabinet, it sends a start command to the lifting component, thereby driving the lifting component to adjust the distance between the cabinet and the base. Two sets of blocking components are installed inside the cabinet and correspond one-to-one with two sets of heat dissipation channels. The blocking components can seal off all heat dissipation slots. Two sets of linkage components are installed on the cabinet, with one linkage component corresponding to one blocking component; The contact component is located on the base. When the cabinet moves upward, the linkage component moves synchronously, so that the linkage component will come into contact with the contact component, thereby driving the linkage component to move and causing the blocking component to close all the heat dissipation slots.

[0006] Preferably, the cabinet is symmetrically equipped with pushing components, which correspond one-to-one with two sets of blocking components. The pushing components are used to push the blocking components to move, thereby blocking the blocking components to close all heat dissipation slots.

[0007] Preferably, a support plate is provided on the base, and a guide groove is provided on the support plate. The lifting component slides in conjunction with the guide groove. Multiple support columns are evenly provided on the top surface of the base, and the bottom end of the support column contacts the bottom surface of the cabinet.

[0008] Preferably, the lifting assembly includes a fixed block, a driving device, a lead screw, and two guide rods. The fixed block is located on one side of the cabinet and slides with the guide groove. The driving device is mounted on the support plate. One end of the lead screw is coaxially connected to the driving end of the driving device, and the other end is rotatably mounted on the inner wall of the guide groove. Both guide rods are fixed in the guide groove along the length of the guide groove. The fixed block is threadedly connected to the lead screw, and slides with the guide rods.

[0009] Preferably, the detection component includes a sliding column, a positioning plate, a floating plate, a trigger element one, and a trigger element two. One end of the sliding column is installed on the bottom surface of the cabinet. The positioning plate is fixedly installed on the end of the sliding column away from the cabinet. The floating plate is slidably fitted onto the sliding column. The trigger element one is fixedly fitted onto the end of the sliding column near the cabinet. The trigger element two is located on the side of the floating plate near the trigger element one.

[0010] Preferably, the blocking component includes two guide rails and a baffle. The two guide rails are symmetrically distributed on both sides of the heat dissipation channel, and the baffle is slidably installed in the guide rails on both sides. The baffle can completely cover all the heat dissipation slots. Multiple ventilation slots are arranged on the baffle, and the ventilation slots correspond one-to-one with the heat dissipation slots and have the same size.

[0011] Preferably, the linkage assembly includes a linkage plate, which is rotatably mounted on the cabinet via an automatic reset component. One side of the linkage plate is located inside the cabinet, and the other side is located outside the cabinet. The linkage plate is initially tilted, with the outer side lower than its inner side. A storage slot 1 is symmetrically provided on the outer surface of the cabinet. Each linkage plate of the linkage assembly corresponds to a storage slot 1. The outer side of the linkage plate can enter the storage slot 1. A second storage slot 2 is symmetrically provided on the inner wall of the cabinet. Each linkage plate of the linkage assembly corresponds to a storage slot 2. The inner side of the linkage plate can enter the storage slot 2. The linkage assembly also includes a connecting rod, one end of which is rotatably connected to a baffle, and the other end of which is rotatably connected to the inner side of the linkage plate.

[0012] Preferably, the abutment component includes a mounting bracket, which is fixedly mounted on a support plate. A mounting plate is mounted on the mounting bracket, and abutment plates are symmetrically arranged on both sides of the mounting plate. The abutment plates correspond one-to-one with the linkage plates.

[0013] Preferably, the pushing component includes a pushing device, which is installed on the inner wall of the cabinet. The pushing end of the pushing device is equipped with a push plate, which contacts the baffle.

[0014] Preferably, the top surface of the cabinet is equipped with a rain shelter, which is inclined.

[0015] The beneficial effects of this invention are: By using the copper contact trigger structure of the detection component in conjunction with the lifting component, the ground water level can be monitored in real time. When the water level reaches the danger threshold, the control unit automatically drives the cabinet to lift, so that the cabinet is removed from the water surface. This effectively prevents the internal electrical components of the device from being soaked in water, short-circuiting and corroding. It solves the problem of traditional equipment being fixed in height and easily flooded, and significantly improves the operational safety of the equipment in rainy weather and low-lying areas.

[0016] By utilizing the mechanical cooperation of the counteracting and linkage components, while the cabinet is raised to avoid danger, the blocking components can be automatically moved to slide, causing the ventilation slots and heat dissipation slots to be misaligned and blocked. The heat dissipation channels can be closed synchronously without additional electrical control operations, effectively preventing rainwater and moisture from entering the cabinet from the heat dissipation slots. This achieves integrated protection of lifting for waterproofing and sealing for moisture prevention, with a reliable structure and rapid response.

[0017] Equipped with an independent drive component and a built-in control unit, in addition to passive protection against water accumulation, it can actively drive the baffle to seal the heat dissipation slots according to the equipment's heat dissipation status, ambient humidity, and other operating conditions, achieving multiple protections against moisture, dust, and condensation. This breaks the limitations of the traditional single protection mode of equipment and greatly improves the device's intelligent protection capabilities and adaptability to multiple scenarios. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention.

[0020] Figure 3 This is the invention Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0021] Figure 4 This is the invention Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0022] Figure 5 This is a schematic diagram of the base structure of the present invention.

[0023] Figure 6 This is a schematic diagram of the structure of the contact component of the present invention.

[0024] Figure 7 This is a schematic diagram of the internal structure of the cabinet of the present invention.

[0025] Figure 8 This is the invention Figure 7 A magnified schematic diagram of the structure at point C.

[0026] Figure 9 This is the invention Figure 7 A magnified schematic diagram of the structure at point D in the middle.

[0027] Figure label: 10. Cabinet; 11. Base; 12. Ventilation slot; 13. Support plate; 14. Guide slot; 15. Support column; 16. Fixing block; 17. Drive device; 18. Lead screw; 19. Guide rod; 20. Sliding column; 21. Positioning plate; 22. Floating plate; 23. Trigger element one; 24. Trigger element two; 25. Guide rail; 26. Baffle; 27. Ventilation slot; 28. Link plate; 29. ​​Storage slot one; 30. Storage slot two; 31. Connecting rod; 32. Mounting bracket; 33. Mounting plate; 34. Abutment plate; 35. Pushing device; 36. Push plate; 37. Rain shelter. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] like Figures 1 to 9 As shown, a building photovoltaic-storage DC-DC power distribution device of the present invention includes a cabinet 10, a base 11, a lifting component, a detection component, two sets of blocking components, two sets of linkage components, and a contact component. The cabinet 10 is located above the base 11. The cabinet 10 has symmetrical heat dissipation channels on both sides. The heat dissipation channels are composed of several arrayed heat dissipation slots 12. The lifting assembly is installed between the base 11 and the cabinet 10 to adjust the distance between the cabinet 10 and the base 11. The detection component is installed at the bottom of the cabinet 10. The detection component can detect the water level of the environment in real time. When the water level reaches the danger threshold and poses a threat of flooding to the equipment in the cabinet 10, it sends a start control command to the lifting component to drive the lifting component to raise the cabinet 10 and increase the distance between the cabinet 10 and the base 11. Two sets of blocking components are installed inside the cabinet 10 and are set one-to-one with the two sets of heat dissipation channels. The blocking components are used to simultaneously block all heat dissipation slots 12 of the corresponding heat dissipation channels. Two sets of linkage components are assembled on the cabinet 10 and are adapted and driven by two sets of blocking components; The contact component is fixedly installed on the base 11. When the cabinet 10 is lifted upward by the lifting component, the linkage component moves vertically in sync with the cabinet 10. During the movement of the linkage component, it contacts and cooperates with the contact component, thereby driving the linkage component to generate a linkage action, which in turn drives the corresponding blocking component to close all the heat dissipation slots 12.

[0030] In actual use, the device is usually installed in low-lying areas of buildings, underground garages, outdoor areas of parks and other places prone to water accumulation. The heat dissipation channels on both sides of the cabinet 10 enable continuous ventilation and heat dissipation inside the equipment, ensuring the stable operation of the photovoltaic-storage DC-DC power distribution module, energy storage converter and DC power distribution components. When encountering rainfall and rising ground water, the detection component monitors the water level in real time, and automatically triggers a dual mechanism of lifting protection and heat dissipation sealing protection when the water level approaches the bottom of the cabinet 10 and there is a risk of flooding. This effectively avoids water damage to the equipment and greatly improves the environmental adaptability and operational safety of the device.

[0031] Furthermore, two sets of pushing components are symmetrically assembled inside the cabinet 10. The two sets of pushing components correspond one-to-one with the two sets of blocking components. The pushing components are connected to the corresponding blocking components, and the pushing components can independently push the corresponding blocking components to a directional displacement so that the blocking components completely block all the heat dissipation slots 12 of the corresponding heat dissipation channel, thereby achieving airtight protection of the heat dissipation structure of the cabinet 10.

[0032] Furthermore, a support plate 13 is fixedly mounted on the base 11, and a guide groove 14 is provided on the support plate 13. The lifting component is slidably adapted to the guide groove 14 to realize the guided sliding installation of the lifting component. Several support columns 15 are evenly mounted on the four corners of the top surface of the base 11. The top of the support column 15 can abut against the bottom surface of the cabinet 10. Under normal conditions, the support column 15 supports the cabinet 10 and stably maintains the distance between the cabinet 10 and the base 11. The gap formed between the cabinet 10 and the base 11 provides sufficient space for the installation of the detection component and water level detection operation.

[0033] Furthermore, the lifting assembly includes a fixing block 16, a drive device 17, a lead screw 18, and two guide rods 19. The fixing block 16 is slidably fitted and installed in the guide groove 14 and slides with the guide groove 14. The fixing block 16 is fixedly connected to one side of the bottom of the cabinet 10. The drive device 17 is fixedly installed on the support plate 13. The drive device 17 includes, but is not limited to, servo motors, stepper motors, and other devices that can drive forward and reverse precisely. The lead screw 18 is arranged along the length direction of the guide groove 14. One end of the lead screw 18 is coaxially fixedly connected to the drive end of the drive device 17. The other end of the lead screw 18 is rotatably mounted on the groove wall of the guide groove 14. The two guide rods 19 are both fixedly arranged inside the guide groove 14 along the length direction of the guide groove 14. The fixing block 16 is threadedly connected to the lead screw 18, and the fixing block 16 is movably sleeved on the two guide rods 19. During operation, the drive device 17 drives the lead screw 18 to rotate, thereby driving the fixed block 16 to slide horizontally along the guide groove 14. In conjunction with the guide rod 19 for limiting and guiding, the cabinet 10 can be smoothly adjusted in height.

[0034] Furthermore, the detection assembly includes a sliding column 20, a positioning plate 21, a float 22, a trigger element 23, and a trigger element 24. The top of the sliding column 20 is fixedly installed on the bottom surface of the cabinet 10. The positioning plate 21 is fixedly installed on the bottom end of the sliding column 20. The float 22 is vertically slidably sleeved on the outside of the sliding column 20 and can slide freely vertically along the sliding column 20 as the water level rises and falls. The trigger element 23 is fixedly sleeved on the upper part of the sliding column 20 near the cabinet 10. The trigger element 24 is correspondingly assembled on the top of the float 22 facing the trigger element 23. On the side end face, the mutual triggering contact areas of trigger 1 23 and trigger 2 24 are both set as conductive copper sheets. The copper sheet material is corrosion resistant and has stable conductivity, which can effectively avoid the problem of poor contact due to oxidation in humid environments. When the water level rises, it causes the float 22 and the second trigger to move upward synchronously, so that the two sets of conductive copper sheets make contact and conduction. The detection component sends a lifting drive signal to the drive device 17. After receiving the instruction, the drive device 17 starts and drives the lifting component to move, automatically raising the height of the cabinet 10, so that the bottom of the cabinet 10 is removed from the water accumulation range, and preventing water flooding.

[0035] Furthermore, the blocking component includes two guide rails 25 and a baffle 26. The two guide rails 25 are symmetrically fixed on both sides of the corresponding heat dissipation channel. The two ends of the baffle 26 are slidably fitted into the corresponding guide rails 25, so that the baffle 26 can slide laterally along the guide rails 25. The baffle 26 has several ventilation slots 27 arranged in an array on its surface. The ventilation slots 27 are set one-to-one with the heat dissipation slots 12 of the heat dissipation channel and the two have the same specifications and dimensions. Under normal conditions, the ventilation slots 27 and the heat dissipation slots 12 are aligned and connected to achieve normal ventilation and heat dissipation of the cabinet 10, which meets the heat dissipation requirements of the equipment during long-term operation. When water accumulation triggers the protection mechanism, the sliding baffle 26 can completely misalign the ventilation slots 27 and the heat dissipation slots 12. After misalignment, the baffle 26 completely blocks all the heat dissipation slots 12, achieving complete sealing of the heat dissipation channel and preventing rainwater and moisture from entering the cabinet 10 through the heat dissipation slots 12.

[0036] Furthermore, the linkage assembly includes a linkage plate 28, an automatic reset component, and a connecting rod 31. The linkage plate 28 is rotatably mounted on the cabinet 10 via the automatic reset component, which is preferably a torsion spring. The linkage plate 28 is arranged in a through-type configuration, with one end located inside the cabinet 10 and the other end located outside the cabinet 10. The linkage plate 28 is initially arranged at an angle, and the height of the side located outside the cabinet 10 is lower than the height of the side located inside the cabinet 10. The outer surface of the cabinet 10 is symmetrically provided with storage slots 29. A single linkage assembly consists of a linkage plate 28 and a single storage slot 29. Correspondingly, the outer end of the cabinet 10 of the linkage plate 28 can be retracted into the corresponding storage slot 29. The inner wall of the cabinet 10 is symmetrically provided with storage slots 30. The linkage plate 28 of a single linkage component corresponds to the position of a single storage slot 30. The inner end of the cabinet 10 of the linkage plate 28 can be retracted into the corresponding storage slot 30. One end of the connecting rod 31 is rotatably hinged to the baffle 26, and the other end of the connecting rod 31 is rotatably hinged to the end of the linkage plate 28 located inside the cabinet 10, so that when the linkage plate 28 rotates, the baffle 26 can be pulled laterally by the connecting rod 31 to realize the power linkage transmission.

[0037] Furthermore, the abutment assembly includes a mounting bracket 32, a mounting plate 33, and two abutment plates 34. The mounting bracket 32 ​​is fixedly mounted on the support plate 13, and the mounting plate 33 is fixedly mounted on the top of the mounting bracket 32. The two abutment plates 34 are symmetrically fixed on the left and right sides of the mounting plate 33 and correspond one-to-one with the linkage plates 28 of the two sets of linkage components. When the cabinet 10 is lifted upwards by the lifting component, the outer end of the linkage plate 28, which moves upwards synchronously with the cabinet 10, abuts and presses against the corresponding abutment plate 34, causing the linkage plate 28 to overcome the automatic reset component. The elastic force causes rotation. During the rotation, the end of the connecting plate 28 located outside the cabinet 10 is inserted into the storage slot 29, and the end of the connecting plate 28 located inside the cabinet 10 is inserted into the storage slot 30. At the same time, the connecting plate 28 drives the baffle 26 to slide laterally along the guide rail 25 through the connecting rod 31, so that the ventilation slot 27 of the baffle 26 is misaligned with the heat dissipation slot 12 of the cabinet 10. The baffle 26 completely covers and seals all the heat dissipation slots 12. While the cabinet 10 is raised and waterproofed, the heat dissipation channel is sealed at the same time, achieving dual protection of waterproof and moisture-proof.

[0038] Furthermore, the pushing component includes a pushing device 35 and a push plate 36. The pushing device 35 is rotatably mounted on the inner wall of the cabinet 10. The pushing device 35 includes, but is not limited to, an electric push rod and a micro telescopic drive mechanism. The power output end of the pushing device 35 is fixedly mounted with the push plate 36. The surface of the push plate 36 abuts against the side wall of the baffle 26 of the corresponding blocking component. The pushing device 35 can output thrust and push the baffle 26 through the push plate 36. The baffle 26 slides smoothly along the guide rail 25 to ensure that the baffle 26 accurately completes the blocking and conduction switching action of the heat dissipation slot 12.

[0039] Furthermore, the top surface of the cabinet 10 is provided with an inclined rain shelter 37, which can shield and protect the heat dissipation structure on the top and sides of the cabinet 10, preventing rainwater from directly washing over the cabinet 10 and further improving the overall rainproof and waterproof effect of the device.

[0040] It should be noted that the cabinet 10 has a built-in independent control unit. The control unit is electrically connected to the detection component, the lifting component drive device 17, and the pushing component, respectively. It is used to receive and analyze various detection signals in real time, and intelligently control the start and stop of the drive device 17 and the pushing device 35 according to the working conditions to realize the automatic protection and control of the equipment. The control unit is existing technology and will not be described in detail here.

[0041] The working principle of this device is as follows: Under normal working conditions, the cabinet 10 is stably supported by the support column 15 at the top of the base 11. A detection space is reserved between the cabinet 10 and the base 11. The floating plate 22 of the detection component is in a naturally drooping low position. The first trigger and the second trigger are separated from each other. The device is in a normal heat dissipation and normal power distribution working mode. The ventilation slot 27 of the baffle 26 is aligned and connected with the heat dissipation slot 12 of the cabinet 10 to ensure stable ventilation and heat dissipation of the optical storage DC-flexible power distribution module inside the cabinet 10. When rainfall occurs and the site floods, the buoyancy of the water pushes the float 22 to slide upward along the sliding column 20. The float 22 drives the second trigger to move upward synchronously. When the water level reaches the dangerous water level threshold, the upper and lower sets of conductive copper sheets make contact and conduction. The detection component generates a lifting trigger signal and transmits it to the control unit inside the cabinet 10. After receiving the trigger command, the control unit analyzes and outputs a control signal to start the drive device 17 of the lifting component. After the drive device 17 is started, it drives the lead screw 18 to rotate, drives the fixed block 16 to slide and lift the overall height of the cabinet 10, so that the cabinet 10 is removed from the water surface and the equipment is prevented from being flooded and damaged.

[0042] During the upward lifting of the cabinet 10, the outer end of the connecting plate 28, which moves upward synchronously with the cabinet 10, comes into contact with and presses against the abutment plate 34 fixed to the side of the base 11, causing the connecting plate 28 to rotate against the torsion spring force. During the rotation of the connecting plate 28, the baffle 26 is pulled to slide laterally along the guide rail 25 through the connecting rod 31, so that the ventilation groove 27 of the baffle 26 is completely misaligned with the heat dissipation groove 12 of the cabinet 10, automatically sealing all heat dissipation channels and effectively preventing rainwater and moisture from entering the interior of the cabinet 10.

[0043] After the water recedes, the water level drops, the float 22 automatically falls back, the two sets of conductive copper sheets disconnect, the detection component stops sending trigger signals, and after the control unit receives the signal disconnection command, it can cooperate with the preset program to realize the automatic fall back and reset of the cabinet 10. At the same time, the linkage plate 28 is reset in the opposite direction under the elastic force of the automatic reset component, which drives the baffle 26 to slide and reset, so that the ventilation slot 27 and the heat dissipation slot 12 are realigned, and the normal ventilation and heat dissipation of the cabinet 10 is restored. Meanwhile, the control unit built into the cabinet 10 can receive monitoring signals such as no heat dissipation requirement of the equipment, dampness of the cabinet 10, and excessive ambient humidity, and autonomously send control commands to drive the push device 35 to achieve active closure protection of the heat dissipation slot 12. It can automatically block the heat dissipation channel under special working conditions, comprehensively improve the water accumulation protection, moisture and water resistance of the building photovoltaic storage DC flexible DC power distribution device, and effectively solve the problems of fixed height, easy flooding and poor scene adaptability of existing equipment.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A building-integrated photovoltaic-storage DC-DC power distribution device, characterized in that, include: The cabinet (10) and the base (11) are arranged above the base (11); The cabinet (10) has symmetrical heat dissipation channels on both sides, and the heat dissipation channels are composed of multiple heat dissipation slots (12) arranged in a row; A lifting component is installed between the base (11) and the cabinet (10) to adjust the distance between the cabinet (10) and the base (11); The detection component is set at the bottom of the cabinet (10). The detection component is used to detect the water level height. When the water level height poses a threat to the cabinet (10), it sends a start command to the lifting component, thereby driving the lifting component to adjust the distance between the cabinet (10) and the base (11). Two sets of blocking components are installed inside the cabinet (10) and correspond one-to-one with the two sets of heat dissipation channels. The blocking components can close all heat dissipation slots (12). Two sets of linkage components are set on the cabinet (10), with one linkage component and one blocking component corresponding to each other; The contact component is set on the base (11). When the cabinet (10) moves upward, the linkage component moves synchronously, so that the linkage component will contact the contact component to drive the linkage component to move and drive the blocking component to close all heat dissipation slots (12).

2. The building-integrated photovoltaic-storage DC-DC power distribution device according to claim 1, characterized in that, The cabinet (10) is symmetrically provided with pushing components. The pushing components correspond one-to-one with two sets of blocking components. The pushing components are used to push the blocking components to move, thereby blocking the blocking components to close all heat dissipation slots (12).

3. A building-mounted photovoltaic-storage DC-DC power distribution device according to claim 2, characterized in that, The base (11) is provided with a support plate (13), and a guide groove (14) is provided on the support plate (13). The lifting component slides in cooperation with the guide groove (14). Multiple support columns (15) are evenly provided on the top surface of the base (11), and the bottom end of the support column (15) contacts the bottom surface of the cabinet (10).

4. A building-mounted photovoltaic-storage DC-DC power distribution device according to claim 3, characterized in that, The lifting assembly includes a fixed block (16), a driving device (17), a lead screw (18), and two guide rods (19). The fixed block (16) is located on one side of the cabinet (10) and is slidably engaged with the guide groove (14). The driving device (17) is mounted on the support plate (13). One end of the lead screw (18) is coaxially connected to the driving end of the driving device (17), and the other end is rotatably mounted on the inner wall of the guide groove (14). The two guide rods (19) are fixed in the guide groove (14) along the length direction of the guide groove (14). The fixed block (16) and the lead screw (18) are threaded and connected through each other, and the fixed block (16) and the guide rods (19) are slidably engaged.

5. A building-integrated photovoltaic-storage DC-DC power distribution device according to claim 4, characterized in that, The detection assembly includes a sliding column (20), a positioning plate (21), a floating plate (22), a trigger element one (23), and a trigger element two (24). One end of the sliding column (20) is installed on the bottom surface of the cabinet (10). The positioning plate (21) is fixedly installed on the end of the sliding column (20) away from the cabinet (10). The floating plate (22) is slidably fitted on the sliding column (20). The trigger element one (23) is fixedly fitted on the end of the sliding column (20) close to the cabinet (10). The trigger element two (24) is set on the side of the floating plate (22) close to the trigger element one (23).

6. A building-integrated photovoltaic-storage DC-DC power distribution device according to claim 3, characterized in that, The blocking assembly includes two guide rails (25) and a baffle (26). The two guide rails (25) are symmetrically distributed on both sides of the heat dissipation channel. Both sides of the baffle (26) are slidably installed in the guide rails (25). The baffle (26) can completely cover all the heat dissipation slots (12). Multiple ventilation slots (27) are arranged on the baffle (26). The ventilation slots (27) correspond one-to-one with the heat dissipation slots (12) and have the same size.

7. A building-integrated photovoltaic-storage DC-DC power distribution device according to claim 6, characterized in that, The linkage assembly includes a linkage plate (28), which is rotatably mounted on the cabinet (10) via an automatic reset component. One side of the linkage plate (28) is located inside the cabinet (10), and the other side is located outside the cabinet (10). The linkage plate (28) is initially tilted, with the outer side lower than the inner side. The outer surface of the cabinet (10) is symmetrically provided with storage slots (29). The linkage plate (28) of one linkage assembly corresponds to the position of one storage slot (29). The cabinet (10) is located on the outside side and can enter the storage slot 1 (29). The cabinet (10) is symmetrically provided with storage slot 2 (30) on the inner wall. The linkage plate (28) of the linkage component corresponds to the position of storage slot 2 (30). The linkage plate (28) is located on the inside side of the cabinet (10) and can enter the storage slot 2 (30). The linkage component also includes a linkage rod (31). One end of the linkage rod (31) is rotatably connected to the baffle (26), and the other end is rotatably connected to the linkage plate (28) located on the inside side of the cabinet (10).

8. A building-mounted photovoltaic-storage DC-DC power distribution device according to claim 7, characterized in that, The contact component includes a mounting bracket (32), which is fixedly mounted on a support plate (13). A mounting plate (33) is mounted on the mounting bracket (32), and contact plates (34) are symmetrically arranged on both sides of the mounting plate (33). The contact plates (34) correspond one-to-one with the linkage plate (28).

9. A building-integrated photovoltaic-storage DC-DC power distribution device according to claim 6, characterized in that, The pushing assembly includes a pushing device (35), which is installed on the inner wall of the cabinet (10). The pushing end of the pushing device (35) is equipped with a push plate (36), which is in contact with the baffle (26).

10. A building-integrated photovoltaic-storage DC-DC power distribution device according to claim 1, characterized in that, The top surface of the cabinet (10) is provided with a rain shelter (37), which is inclined.

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