Outdoor ring main unit box based on photovoltaic photo-thermal integration method for cooling and dehumidification

Abstract

The application relates to an outdoor ring network cabinet box based on a photovoltaic light heat integrated method for cooling and dehumidifying, which comprises a base, a box arranged on the base and a top cover arranged on the top of the box, the box comprises a box frame, a box front door and a plurality of box side doors installed on the box frame, a transparent plate and a photovoltaic plate are sequentially and tightly arranged in the middle of the box front door from outside to inside, the transparent plate and the photovoltaic plate are arranged at intervals to form a wall chamber between the transparent plate and the photovoltaic plate, a first air outlet is arranged below the photovoltaic plate and communicates with the lower end of the wall chamber, a second air outlet is arranged above the transparent plate and communicates with the upper end of the wall chamber, and an air inlet is arranged on the box side door. The application forms an open normal air circulation between the box and the external environment under the light condition, and cooling and dehumidification of the ring network cabinet are realized without additional energy supply; the application can improve the power generation efficiency of the photovoltaic plate during the cooling and dehumidification process of the ring network cabinet, and is energy-saving and environment-friendly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power grid system power distribution electrical equipment, in particular to an outdoor ring main unit box based on photovoltaic and photo-thermal integration method for cooling and dehumidification. BACKGROUND

[0002] The ring main unit is a group of power distribution electrical equipment (high-voltage switch equipment) installed in a metal or non-metal insulated cabinet or made into a split interval type ring network power supply unit. It is widely used by load centers such as civil and industrial application distribution stations and box-type substations. Due to the use of the scene and environmental restrictions, the ring main unit needs to be placed outdoors. The general outdoor ring main unit includes an independent box, and the ring main unit placed outdoors will have the following problems due to environmental reasons: high temperature in the box, small air flow in the box, difficult to exhaust humid air, and easy to form an environment conducive to condensation in the box. When the ring main unit is working, the powered equipment will generate heat, and when the current is large, forced cooling is required to cool down. The humid air in the box will reduce the insulation of the ring main unit and increase the probability of accidents of the ring main unit, especially for solid ring main units, the dryness of the box interior needs to be ensured, so a drying device is needed to dry the interior of the box. The ring main unit on the market mainly cools the interior of the box by connecting an external fan or air conditioner, and the humid air in the box is currently dried by an external power heating device. SUMMARY

[0003] The present application provides an outdoor ring main unit box based on photovoltaic and photo-thermal integration method for cooling and dehumidification from the perspective of forming a cycle of the air in the outdoor ring main unit and the external environment. The present application can utilize the wall chamber cavity formed between the transparent plate and the photovoltaic plate to form an open normal air automatic cycle between the ring main unit box and the external environment by using the photovoltaic and photo-thermal integration method, and utilize this cycle to achieve the purpose of cooling and dehumidification of the outdoor ring main unit. In addition, the photovoltaic plate can provide part of the power source for the electrical appliances in the box, achieving the purpose of energy saving and environmental protection.

[0004] To solve the above problems in the prior art, the present application provides an outdoor ring main unit box based on photovoltaic and photo-thermal integration method for cooling and dehumidification, which comprises a base, a box arranged on the base, and a top cover arranged on the top of the box. The box comprises a box frame, a box front door and a plurality of box side doors mounted on the box frame. A transparent plate and a photovoltaic plate are sequentially and hermetically mounted in the middle of the box front door from the outside to the inside. The transparent plate and the photovoltaic plate are arranged in a spaced manner to form a wall chamber cavity therebetween. A first air outlet is arranged below the photovoltaic plate and communicates with the lower end of the wall chamber cavity. A second air outlet is arranged above the transparent plate and communicates with the upper end of the wall chamber cavity. An air inlet is arranged on the box side door.

[0005] Further, the application discloses an outdoor ring main unit box based on a photovoltaic and photothermal integrated method for cooling and dehumidifying, wherein a heat insulation plate is additionally arranged on the front door of the box, the middle part of the back surface of the photovoltaic panel is recessed inward, and the front surface of the heat insulation plate is in abutment with the back surface of the photovoltaic panel, so that the air heat insulation cavity is formed between the heat insulation plate and the photovoltaic panel.

[0006] Further, the application discloses an outdoor ring main unit box based on a photovoltaic and photothermal integrated method for cooling and dehumidifying, wherein the inner side of the front door of the box is correspondingly and fixedly connected with a first upper mounting beam and a first lower mounting beam in the up-down direction, and the photovoltaic panel and the heat insulation plate are fixedly connected between the first upper mounting beam and the first lower mounting beam.

[0007] Further, the application discloses an outdoor ring main unit box based on a photovoltaic and photothermal integrated method for cooling and dehumidifying, wherein the lower end of the first upper mounting beam is provided with an upper baffle extending downward near the side of the photovoltaic panel, the back surface of the upper baffle is in abutment with the front surface of the photovoltaic panel, the upper end of the first upper mounting beam is provided with an upper inclined surface gradually away from the second air outlet from bottom to top, the upper end of the first lower mounting beam is provided with a lower baffle extending upward near the side of the photovoltaic panel, the back surface of the lower baffle is in abutment with the front surface of the photovoltaic panel, and the lower end of the first lower mounting beam is provided with a lower inclined surface gradually away from the first air outlet from bottom to top.

[0008] Further, the application discloses an outdoor ring main unit box based on a photovoltaic and photothermal integrated method for cooling and dehumidifying, wherein the outer side of the front door of the box is correspondingly and fixedly connected with a second upper mounting beam and a second lower mounting beam in the up-down direction, the lower end of the second upper mounting beam is provided with an upper mounting groove arranged along the length direction of the second upper mounting beam, the upper end of the second lower mounting beam is provided with a lower mounting groove arranged along the length direction of the second lower mounting beam, and the transparent plate is embedded in the upper mounting groove and the lower mounting groove corresponding to the second upper mounting beam and the second lower mounting beam.

[0009] Further, the application discloses an outdoor ring main unit box based on a photovoltaic and photothermal integrated method for cooling and dehumidifying, wherein the back surface of the second lower mounting beam is flush with the back surface of the first lower mounting beam, the cross section shape of the second lower mounting beam is L-shaped, and the first lower mounting beam is arranged above the second lower mounting beam, so that the side walls of the adjacent first lower mounting beam and second lower mounting beam form the first air outlet.

[0010] Further, the application discloses an outdoor ring main unit box based on a photovoltaic and photothermal integrated method for cooling and dehumidifying, wherein the first upper mounting beam is provided with a first convex beam extending towards the inside of the box, the second lower mounting beam is provided with a second convex beam extending towards the inner side of the box, and the outlet dustproof net is arranged between the first convex beam and the second convex beam.

[0011] Further, the application discloses an outdoor ring main unit box based on a photovoltaic and photo-thermal integrated method for cooling and dehumidifying, wherein a plurality of interval arranged air outlet holes are arranged at the first air outlet, the air outlet holes are in a strip shape, the upper end of each air outlet hole is provided with a strip-shaped wind deflector, each wind deflector comprises a connecting part, a shielding part and an extending part, one end of the connecting part is fixed on the outer side wall of the box door, the other end of the connecting part is connected with the shielding part, the shielding part is arranged at the position corresponding to the air outlet hole, the extending part is downwardly extended after being smoothly connected with the shielding part, and the outer surface of the extending part of each wind deflector is in the same plane.

[0012] Further, the application discloses an outdoor ring main unit box based on a photovoltaic and photo-thermal integrated method for cooling and dehumidifying, wherein a plurality of interval arranged air outlet holes are arranged at the first air outlet, the air outlet holes are in a strip shape, the upper end of each air outlet hole is provided with a strip-shaped wind deflector, each wind deflector comprises a connecting part, a shielding part and an extending part, one end of the connecting part is fixed on the outer side wall of the box door, the other end of the connecting part is connected with the shielding part, the shielding part is arranged at the position corresponding to the air outlet hole, the extending part is downwardly extended after being smoothly connected with the shielding part, and the outer surface of the extending part of each wind deflector is in the same plane.

[0013] Further, the application discloses an outdoor ring main unit box based on a photovoltaic and photo-thermal integrated method for cooling and dehumidifying, wherein a plurality of interval arranged air outlet holes are arranged at the first air outlet, the air outlet holes are in a strip shape, the upper end of each air outlet hole is provided with a strip-shaped wind deflector, each wind deflector comprises a connecting part, a shielding part and an extending part, one end of the connecting part is fixed on the outer side wall of the box door, the other end of the connecting part is connected with the shielding part, the shielding part is arranged at the position corresponding to the air outlet hole, the extending part is downwardly extended after being smoothly connected with the shielding part, and the outer surface of the extending part of each wind deflector is in the same plane.

[0014] Compared with the prior art, the outdoor ring main unit box based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying has the following advantages: the transparent plate, the wall cavity and the photovoltaic panel form a stifling structure, the air in the wall cavity can be quickly heated by the heat absorption layer on the surface of the photovoltaic panel, the hot air rises, the cold air in the box quickly supplements into the wall cavity, so that the wall cavity, the inside of the box and the atmospheric environment form an open normal air flow circulation, the circulation has a good cooling and dehumidifying effect on the ring main unit box, the circulation is promoted by sunlight, energy saving and environmental protection, and can be normally operated, so that the purpose of cooling and dehumidifying without additional power supply under the light condition is achieved. Moreover, the cold air in the box quickly supplements into the wall cavity at the same time, the surface of the photovoltaic panel is cooled, the photovoltaic panel generates electricity, the power generation efficiency of the photovoltaic panel is improved, the safe operation of the ring main unit is promoted more, and the electric energy is saved. Compared with the prior art, the application is more energy saving and environmental protection, and has stronger cooling and dehumidifying capacity, so that the safe operation of the ring main unit is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a side view structural schematic diagram of the outdoor ring main unit box based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying according to the present application;

[0016] Figure 2 FIG. 2 is a partial enlarged view of A part in FIG. 1; Figure 1

[0017] Figure 3 FIG. 3 is a partial enlarged view of B part in FIG. 1; Figure 2

[0018] Figure 4 FIG. 4 is a front view structural schematic diagram of the outdoor ring main unit box based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying according to the present application;

[0019] Figure 5 FIG. 5 is a connection structure schematic diagram of each electrical element in the outdoor ring main unit box based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying according to the present application. DETAILED DESCRIPTION

[0020] In order to make the effects, technical solutions and advantages of the present application clearer, more apparent and more understandable, the present application will be further described below in combination with the drawings and specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] As Figure 1 ​​As shown, the specific embodiment of the outdoor ring main unit cabinet based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying of the application specifically comprises a base 1, a cabinet 2 arranged on the base 1, and a top cover 3 arranged on the top of the cabinet 2. The cabinet 2 comprises a cabinet frame, a cabinet front door 21 and a plurality of cabinet side doors 22 mounted on the cabinet frame. As an improvement, a transparent plate 4 and a photovoltaic plate 5 are sequentially and sealingly arranged in the middle of the cabinet front door 21 from outside to inside. The transparent plate 4 is arranged in a spaced manner with the photovoltaic plate 5 to form a wall chamber 41 between the transparent plate 4 and the photovoltaic plate 5. A first air outlet 23 is arranged below the photovoltaic plate 5 and communicates with the lower end of the wall chamber 41. A second air outlet 24 is arranged above the transparent plate 4 and communicates with the upper end of the wall chamber 41. An air inlet 25 is arranged on the cabinet side door 22. The photovoltaic plate 5 is used to provide electric energy for the electric components (such as an air inlet heater 252, an air pump 8, a first temperature sensor 91, a first humidity sensor 92, a second temperature sensor 93, a second humidity sensor 94, an internal heater 96, and a self-controller 97) in the cabinet 2. The surface of the photovoltaic plate 5 is heated to heat the air in the wall chamber 41, which is discharged to the outside air through the second air outlet 24. Then, the outside air enters the cabinet 2 through the air inlet 25 and supplements the air in the wall chamber 41 through the first air outlet 23 to form an open air circulation. To avoid direct contact between the cabinet 2 and the ground and reduce the influence of geothermal or moisture, the base 1 is arranged to elevate the cabinet 2 to a certain height. A plurality of through holes 11 are arranged on the base 1 and arranged in a linear manner.

[0022] In actual use, when the photovoltaic plate 5 on the cabinet front door 21 receives sunlight, the photovoltaic plate 5 is subjected to a photovoltaic effect, and the surface temperature of the photovoltaic plate 5 is increased to heat the air in the wall chamber 41. The heated air flows upward, and the hot air flows out of the cabinet 2 to the outside through the second air outlet 24. When the air in the wall chamber 41 is reduced, the cold air in the cabinet 2 is supplemented into the wall chamber 41. The cold air absorbs the heat of the surface of the photovoltaic plate 5 to promote the power generation efficiency of the photovoltaic plate 5. At the same time, the pressure in the cabinet 2 is reduced, and the outside air is forced to enter the cabinet 2 through the air inlet 25. Therefore, due to the thermal reaction of the sun, the cabinet 2 forms an open air circulation. The flowing air carries away the heat generated by the ring main unit during operation and reduces the humidity of the air in the cabinet, so as to ensure that the ring main unit operates in a safe and stable environment. The circulation can realize the cooling and dehumidification of the ring main unit cabinet. The circulation is promoted by sunlight, which is energy-saving, environmentally friendly, and can be operated normally. The purpose of cooling and dehumidification without additional power supply under illumination is achieved.

[0023] As Figure 1As shown, due to the higher temperature of the air in the wall chamber cavity 41 under the irradiation of sunlight relative to the temperature inside the cabinet, in order to prevent the heat generated in the wall chamber cavity 41 from being conducted to the inside of the cabinet, destroying the normal open air circulation. The cabinet front door 21 is also provided with a heat insulation plate 6, the middle part of the back of the photovoltaic panel 5 is inwardly recessed, the front surface of the heat insulation plate 6 is abutted with the back of the photovoltaic panel 5, so that the air heat insulation cavity 51 is formed between the heat insulation plate 6 and the photovoltaic panel 5. Through the above setting of the heat insulation plate 6, the heat generated in the wall chamber cavity 41 can be prevented from being conducted to the inside of the cabinet, and the air heat insulation cavity 51 will serve as an intermediate transition space, which can absorb part of the heat, and can form a double heat insulation structure with the heat insulation plate 6, further improving the heat insulation effect.

[0024] On the basis of the above embodiment, as Figure 2 and in combination Figure 3 As shown, the specific fixing mode of the photovoltaic panel 5 and the heat insulation plate 6 in this embodiment is that the first upper mounting beam 26 and the first lower mounting beam 27 are respectively fixedly connected to the inner side of the cabinet front door 21 in the upward direction, and the photovoltaic panel 5 and the heat insulation plate 6 are fixedly connected between the first upper mounting beam 26 and the first lower mounting beam 27. The lower end of the first upper mounting beam 26 near the photovoltaic panel 5 is provided with an upper baffle 261 extending downward, the back of the upper baffle 261 is abutted with the front of the photovoltaic panel 5, and the upper end of the first lower mounting beam 27 near the photovoltaic panel 5 is provided with a lower baffle 271 extending upward, the back of the lower baffle 271 is abutted with the front of the photovoltaic panel 5. Through the cooperation of the upper baffle 261 and the lower baffle 271, the photovoltaic panel 5 and the heat insulation plate 6 can be limited, preventing the photovoltaic panel 5 from falling into the wall chamber cavity 41 and affecting the operation of the open air circulation. In order to further improve the flowability of the open air circulation, the upper end of the first upper mounting beam 26 is provided with an upper inclined surface 262 gradually away from the second air outlet 24 from bottom to top, and the lower end of the first lower mounting beam 27 is provided with a lower inclined surface 272 gradually away from the first air outlet 23 from bottom to top. Through the above setting, the upper and lower ends of the wall chamber cavity 41 form an open structure, reducing the air flow resistance and improving the flowability of the open air circulation.

[0025] On the basis of the above embodiment, as Figure 2 and in combination Figure 3As shown, the specific fixing mode of the transparent plate 4 in the embodiment is that the second upper mounting beam 28 and the second lower mounting beam 29 are respectively fixed and connected on the outside of the cabinet front door 21 along the vertical direction, the upper mounting groove 281 is arranged along the length direction of the second upper mounting beam 28 at the lower end of the second upper mounting beam 28, the lower mounting groove 291 is arranged along the length direction of the second lower mounting beam 29 at the upper end of the second lower mounting beam 29, and the transparent plate 4 is embedded in the corresponding upper mounting groove 281 and lower mounting groove 291 of the second upper mounting beam 28 and the second lower mounting beam 29. Through the above arrangement, the transparent plate 4 is firmly fixed in the upper mounting groove 281 and the lower mounting groove 291, so that the transparent plate 4 will not fall off, and the operation of the open air circulation will not be affected, and the stability of the operation is improved. It should be noted that the transparent plate 4 can be made of tempered glass, acrylic plastic plate, etc., and of course other materials can also be used to make the transparent plate.

[0026] As shown in Figure 3 In order to make the structure more compact and stable, in the embodiment, the back surface of the second lower mounting beam 29 is flush with the back surface of the first lower mounting beam 27, and the cross-sectional shape of the second lower mounting beam 29 is designed as L-shaped, and the position of the first lower mounting beam 27 is above the second lower mounting beam 29, so that the side walls of the adjacent first lower mounting beam 27 and the second lower mounting beam 29 form the first air outlet 23. Through the above arrangement, the first air outlet 23 can be avoided to be separately arranged on the cabinet front door 21, and the opening operation is reduced, the integrity of the whole part is ensured, and the structural stability and service life are improved.

[0027] As shown in Figure 1 and in combination with Figure 3 In order to ensure the cleanliness of the cabinet, in the embodiment, the first convex beam 273 extending to the inside of the cabinet 2 is arranged on the first lower mounting beam 27, the second convex beam 292 extending to the inside of the cabinet 2 is arranged on the second lower mounting beam 29, and the outlet dust screen 7 is arranged between the first convex beam 273 and the second convex beam 292. In addition, the air inlet dust screen 251 is also arranged at the air inlet 25. Through the above arrangement, the external air must pass through the air inlet dust screen 251 or the outlet dust screen 7 to enter the cabinet, which prevents the external dust and other particulate matters from entering the cabinet, ensures the cleanliness of the ring main unit, and further ensures the safe operation of the ring main unit.

[0028] As shown in Figure 2As shown, in order to cause the air in the box 2 to be discharged, or due to the external air caused by the situation such as the influence of open air circulation operation effect. In this embodiment, a plurality of spaced apart air outlet holes 231 are provided at the second air outlet 24, and the air outlet holes 231 are designed as long strips, and a long strip-shaped air deflector 232 is provided at the upper end of each air outlet hole 231. And each air deflector 232 includes a connecting part 2321, a shielding part 2322 and an extension part 2323. One end of the connecting part 2321 is fixed on the outer side wall of the box door 21, the other end of the connecting part 2321 is connected with the shielding part 2322, the shielding part 2322 is blocked at the position corresponding to the air outlet hole 231, and the shielding part 2322 can reduce the influence of the backflow in windy weather. Let the extension part 2323 smoothly transition from the shielding part 2322 and extend downward, and the outer surface of the extension part 2323 of each air deflector 232 is in the same plane. The air discharged from each air outlet hole 231 will not be received by the air outlet hole 231 above it, making the air discharge process of each air outlet hole 231 more smooth and improving the open air circulation capacity.

[0029] In order to improve the adaptability of the device as a whole, it can cope with extreme conditions without sunlight, such as Figure 1 , Figure 4 and in combination Figure 5 As shown, in this embodiment, an air inlet heater 252 is installed at the air inlet dust screen 251, which is used to start when the external environment humidity is too large, to avoid the influence of the humidity in the box on the safe operation of the ring network cabinet. An air pump 8 is installed on the box door 21 or the box side door 22, the air suction end of the air pump 8 is communicated with the inside of the box 2, and the air exhaust end of the air pump 8 is communicated with the outside atmosphere. The air pump 8 is used to start when the external environment temperature is too large or the temperature in the box is too large, to avoid the influence of the high temperature in the box on the safe operation of the ring network cabinet. The outside of the box 2 is provided with a first temperature sensor 91 and a first humidity sensor 92, the first temperature sensor 91 is used to detect the temperature of the external environment, and the first humidity sensor 92 is used to detect the humidity of the external environment. The inside of the box 2 is provided with a second temperature sensor 93 and a second humidity sensor 94, the second temperature sensor 93 is used to detect the temperature in the box, and the second humidity sensor 94 is used to detect the humidity in the box. The box 2 is also provided with a storage battery 95 and an internal heater 96, the storage battery 95 is electrically connected with the photovoltaic panel 5, the storage battery 95 is used to store the electric energy generated by the photovoltaic panel 5, and the internal heater 96 is used to start when the humidity in the box is too large, to avoid the influence of the humidity in the box on the safe operation of the ring network cabinet.

[0030] On the basis of the above-mentioned embodiments, in order to improve the automation level of the system and realize fine control of the whole system, the self-control device 97 is further included in the present embodiment. Of course, those skilled in the art can understand that the self-control device 97 can adopt a digital signal processor (DSP), a field-programmable gate array (FPGA), a microcontroller unit (MCU) system board, a system on a chip (SoC) system board, or a programmable logic controller (PLC) minimum system including I / O. Through preset control logic, the self-control operation of the system can be realized according to the detection data. The storage battery 95 is connected with the air inlet heater 252, the air exhaust pump 8, the first temperature sensor 91, the first humidity sensor 92, the second temperature sensor 93, the second humidity sensor 94, the internal heater 96 and the self-control device 97 through the photovoltaic inverter 98, and the self-control device 97 is connected with the air inlet heater 252, the air exhaust pump 8, the first temperature sensor 91, the first humidity sensor 92, the second temperature sensor 93, the second humidity sensor 94 and the internal heater 96.

[0031] In the present embodiment, the air inlet heater 252, the internal heater 96 and the air exhaust pump 8 are additionally provided to ensure the safety and stability of the operating environment of the ring main unit, and the air exhaust pump 8 enables the cooling and dehumidifying activities to be carried out through stable open air circulation, thereby avoiding the generation of excessive air flow disturbance in the box and low-efficiency cooling and dehumidifying effect. The temperature and humidity inside and outside the box are monitored by the first temperature sensor 91, the first humidity sensor 92, the second temperature sensor 93 and the second humidity sensor 94, and an intelligent monitoring and control system is formed in combination with the self-control device 97, thereby achieving the effect of intelligence, reducing human participation, achieving the purpose of not requiring human maintenance, and the use of the intelligent monitoring and control system is more secure for the safe operation of the ring main unit. The integration of photovoltaic and photo-thermal improves the power generation efficiency of the photovoltaic panel and reduces the dependence of the electrical components on the power grid.

[0032] The self-control operation process is as follows:

[0033] When the first temperature sensor 91 detects that the ambient temperature is greater than a limited value, the air exhaust pump 8 is started to increase the flow intensity of the air inside the box and the air outside, thereby avoiding the generation of safety hazards due to excessively high temperature in the box;

[0034] When the first humidity sensor 92 detects that the ambient humidity is greater than a limited value, the air inlet heater 252 is started to reduce the humidity of the air entering the box, thereby avoiding the generation of safety hazards due to excessively high humidity in the box;

[0035] When the second temperature sensor 93 detects that the temperature in the box is greater than a defined value, the air pump 8 is started to increase the flow intensity of the air in the box and the outside air, so as to avoid the safety hazard caused by the high temperature in the box;

[0036] When the second humidity sensor 94 detects that the humidity in the box is greater than a defined value, the internal heater 96 and the air pump 8 are started at the same time, so as to ensure that the humidity in the box is maintained within a safe range.

[0037] In the description of the present application, it should be understood that the term "front" refers to the side facing the outside of the box, and the term "back" refers to the side facing the inside of the box. The terms "up", "down", "front", "back", "left", "right", "inside", "outside", etc. indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. It should be noted that if the present application involves directional indications, the directional indications are only used to explain the relative positional relationship, movement, etc. between the components through the bolts in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0038] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] The above embodiments only describe the preferred embodiments of the present application, and do not limit the scope of protection of the present application. Without departing from the design spirit of the present application, various forms of deformation of the technical solution of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. An outdoor ring main unit cabinet based on photovoltaic photothermal integration method for cooling and dehumidification, comprising a base (1), a cabinet (2) arranged on the base (1), and a top cover (3) arranged on the top of the cabinet (2), the cabinet (2) comprises a cabinet frame and a cabinet front door (21) and a plurality of cabinet side doors (22) installed on the cabinet frame, characterized in that, The middle part of the cabinet front door (21) is sequentially sealed and installed with a transparent plate (4) and a photovoltaic plate (5) from outside to inside, the transparent plate (4) and the photovoltaic plate (5) are spaced apart to form a wall chamber cavity (41) between the transparent plate (4) and the photovoltaic plate (5), the cabinet front door (21) is provided with a first air outlet (23) communicating with the lower end of the wall chamber cavity (41) below the photovoltaic plate (5), the cabinet front door (21) is provided with a second air outlet (24) communicating with the upper end of the wall chamber cavity (41) above the transparent plate (4), the cabinet side door (22) is provided with an air inlet (25), the cabinet front door (21) is further provided with a heat insulation plate (6), the middle part of the back of the photovoltaic plate (5) is recessed inward, the front of the heat insulation plate (6) abuts against the back of the photovoltaic plate (5) to form an air heat insulation cavity (51) between the heat insulation plate (6) and the photovoltaic plate (5), the inner side of the cabinet front door (21) is respectively correspondingly fixedly connected with a first upper mounting beam (26) and a first lower mounting beam (27) in the up-down direction, the photovoltaic plate (5) and the heat insulation plate (6) are fixedly connected between the first upper mounting beam (26) and the first lower mounting beam (27), the lower end of the first upper mounting beam (26) is provided with an upper baffle (261) extending downward near the side of the photovoltaic plate (5), the back of the upper baffle (261) abuts against the front of the photovoltaic plate (5), the upper end of the first upper mounting beam (26) is provided with an upper inclined surface (262) gradually away from the second air outlet (24) from bottom to top, the upper end of the first lower mounting beam (27) is provided with a lower baffle (271) extending upward near the side of the photovoltaic plate (5), the back of the lower baffle (271) abuts against the front of the photovoltaic plate (5), the lower end of the first lower mounting beam (27) is provided with a lower inclined surface (272) gradually away from the first air outlet (23) from bottom to top.

2. The outdoor ring main unit cabinet based on photovoltaic photo-thermal integration method for cooling and dehumidifying according to claim 1, characterized in that, The outer side of the cabinet front door (21) is respectively correspondingly fixedly connected with a second upper mounting beam (28) and a second lower mounting beam (29) in the up-down direction, the lower end of the second upper mounting beam (28) is provided with an upper mounting groove (281) arranged along the length direction of the second upper mounting beam (28), the upper end of the second lower mounting beam (29) is provided with a lower mounting groove (291) arranged along the length direction of the second lower mounting beam (29), the transparent plate (4) is embedded in the corresponding upper mounting groove (281) and lower mounting groove (291) of the second upper mounting beam (28) and the second lower mounting beam (29).

3. The outdoor ring main unit cabinet based on photovoltaic photo-thermal integration method for cooling and dehumidifying according to claim 2, characterized in that, The back of the second lower mounting beam (29) is flush with the back of the first lower mounting beam (27), and the cross-sectional shape of the second lower mounting beam (29) is L-shaped, and the position of the first lower mounting beam (27) is above the second lower mounting beam (29), so that the side walls of the adjacent first lower mounting beam (27) and the second lower mounting beam (29) form the first air outlet (23).

4. The outdoor ring main unit cabinet based on photovoltaic photo-thermal integration method for cooling and dehumidifying according to claim 3, characterized in that, The first lower mounting crossbeam (27) is provided with a first convex beam (273) extending to the inside of the box (2), the second lower mounting crossbeam (29) is provided with a second convex beam (292) extending to the inside of the box (2), and the first convex beam (273) and the second convex beam (292) are mounted with the outlet dustproof net (7).

5. The outdoor ring main unit cabinet based on photovoltaic photo-thermal integration method for cooling and dehumidifying according to claim 1, characterized in that, The second air outlet (24) is provided with a plurality of spaced air outlets (231), the shape of the air outlet (231) is a long strip, the upper end of each air outlet (231) is provided with a long strip-shaped air deflector (232), each air deflector (232) includes a connecting portion (2321), a shielding portion (2322) and an extension portion (2323), one end of the connecting portion (2321) is fixed on the outer side wall of the box front door (21), the other end of the connecting portion (2321) is connected with the shielding portion (2322), the shielding portion (2322) is blocked at the corresponding position of the air outlet (231), and the extension portion (2323) is extended downward after being smoothly transitioned from the shielding portion (2322), and the outer surfaces of the extension portions (2323) of each air deflector (232) are in the same plane.

6. The outdoor ring main unit cabinet based on photovoltaic photo-thermal integration method for cooling and dehumidifying according to claim 1, characterized in that, The air inlet (25) is provided with an air inlet dustproof net (251), the air inlet dustproof net (251) is provided with an air inlet heater (252), the box front door (21) or the box side door (22) is provided with an air suction pump (8), the air suction end of the air suction pump (8) is communicated with the inside of the box (2), the air exhaust end of the air suction pump (8) is communicated with the outside atmosphere, the outside of the box (2) is provided with a first temperature sensor (91) and a first humidity sensor (92), the inside of the box (2) is provided with a second temperature sensor (93) and a second humidity sensor (94), the inside of the box (2) is further provided with a storage battery (95), an internal heater (96) and an automatic controller (97), the storage battery (95) is electrically connected with the photovoltaic panel (5), the storage battery (95) is connected with the air inlet heater (252), the air suction pump (8), the first temperature sensor (91), the first humidity sensor (92), the second temperature sensor (93), the second humidity sensor (94), the internal heater (96) and the automatic controller (97) through the photovoltaic inverter (98), and the automatic controller (97) is connected with the air inlet heater (252), the air suction pump (8), the first temperature sensor (91), the first humidity sensor (92), the second temperature sensor (93), the second humidity sensor (94) and the internal heater (96).

7. The outdoor ring main unit cabinet based on photovoltaic photo-thermal integration method for cooling and dehumidifying according to claim 1, characterized in that, The base (1) supports the box (2), and a plurality of through holes (11) are arranged on the base (1) in a linear arrangement.

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