A busbar box suitable for various installation positions

Abstract

The present application belongs to the technical field of busbar chamber, especially relates to a busbar chamber suitable for various installation positions, which comprises a box body, a connecting assembly, a temperature regulating assembly and a sand-proof assembly. The box body is used for installing a fuse, a circuit breaker, a lightning arrester, a disconnector and an inverter. The connecting assembly is used for fixing and installing the box body on a circular or square vertical rod with different specifications and sizes. The temperature regulating assembly is used for temperature regulation and dehumidification in the box body. The sand-proof assembly is used for shielding sand and wind from entering the box body when the electrical elements in the box body are maintained in windy and sandy weather or for shielding sunlight from directly irradiating the box body in non-windy and non-sandy weather. In the present application, the temperature regulating assembly installed in the box body integrates heating, refrigeration and dehumidification, effectively improves the integration degree, reduces the space occupied by the heating system and the dehumidification system in the busbar chamber, and effectively reduces the cost of the heating system and the dehumidification system.

Description

Technical Field

[0001] The present invention belongs to the technical field of combiner boxes, and in particular relates to a combiner box suitable for multiple installation positions. Background Art

[0002] The combiner box is a key device in the photovoltaic power generation system. It plays an important role in connecting photovoltaic modules and inverters. Users can connect a certain number of photovoltaic cells of the same specifications in series into a photovoltaic string, and then connect several photovoltaic strings to the photovoltaic combiner box.

[0003] Photovoltaic systems are installed in places with good lighting conditions. These places may be sandy, high-altitude, with large temperature differences between day and night, or cold or hot. The temperature and humidity in the combiner box installed in these places are not conducive to the efficient operation of the inverter inside, thereby affecting the efficiency of photovoltaic power generation.

[0004] When there is strong wind and sand outside the combiner box, if the combiner box is repaired, the wind and sand will enter the combiner box and affect the maintenance of the combiner box.

[0005] Patent application number 201811141115.7 discloses a technology for heating the combiner box using photovoltaic power or mains power when the temperature inside the combiner box is low. Photovoltaic power is used for heating when there is sufficient photovoltaic power, and mains power is used for heating when there is insufficient photovoltaic power. The temperature inside the combiner box is first raised to the required suitable temperature by heating. When the photovoltaic panels have power, the inverter inside the combiner box can be inverted to generate electricity in time. However, too low a temperature is not conducive to the efficient operation of the inverter inside the combiner box. Dehumidification is generally achieved by refrigeration condensation. When the temperature of the working plate is lower than the dew point temperature of the environment in the current state, water in the air will condense on the working plate, thereby reducing the humidity of the air. Generally speaking, the heating system and the dehumidification system are relatively independent and separate, and the degree of integration between the two is low.

[0006] Existing combiner boxes are generally installed on round or square vertical poles. During installation, the combiner box needs to be fixed to the vertical pole through special connectors suitable for round or square poles. The connectors are not universal, making the installation operation more complicated.

[0007] The present invention designs a combiner box suitable for multiple installation positions to solve the above problems. Summary of the Invention

[0008] Based on this, it is necessary to address the problems existing in current combiner boxes and provide a combiner box suitable for multiple installation locations. The present invention utilizes a thermostat installed in the first mounting slot at the bottom of the box body, which can be used to adjust the temperature within the box body in four different ways, depending on the temperature characteristics of the location where the combiner box is installed: no temperature adjustment and no dehumidification, dehumidification and heating, heating alone, and cooling and dehumidification. This ensures that the box body, using photovoltaic power or mains electricity, always maintains an appropriate temperature and humidity within the combiner box body for efficient inverter operation, ensuring high operating efficiency for the inverter installed within the box body, thereby improving the efficiency of photovoltaic power generation. The thermostat installed within the box body integrates heating, cooling, and dehumidification, effectively improving its integration, reducing the space occupied by the heating and dehumidification systems within the combiner box body, and effectively reducing the cost of the heating and dehumidification systems. The sandstorm protection assembly installed on the upper side of the box body can be retracted in non-sandstorm weather to provide a certain degree of shielding from direct sunlight, ensuring that the temperature within the box body does not rise too high due to direct sunlight, thereby ensuring that the inverter within the box body maintains an appropriate temperature and high operating efficiency. Furthermore, the fan assembly deploys during windy and sandy weather, providing 360-degree shielding for the upper half of the box. This prevents excessive intrusion of wind and sand when the door is opened for maintenance, ensuring smooth repair of the combiner box. The two connecting assemblies, located on the rear cover of the box, utilize their unique structure to effectively secure the combiner box to circular or square vertical bars of varying horizontal dimensions. Installation is simple, convenient, and efficient.

[0009] The above purpose is achieved through the following technical solutions:

[0010] A combiner box suitable for various installation positions, used in a photovoltaic power generation system, including:

[0011] Box, used to install fuses, circuit breakers, lightning arresters, disconnectors and inverters.

[0012] Two connecting components are used to quickly fix the box on round or square vertical poles of different specifications and sizes.

[0013] The temperature regulating component arranged in the first installation groove at the bottom of the box is used to regulate the temperature and dehumidify the box. The temperature regulating component has the functional characteristics of integrating dehumidification, heating and cooling.

[0014] The wind and sand protection component arranged on the top of the box is used to prevent wind and sand from entering the box when repairing the electrical components in the box in windy and sandy weather, or to prevent direct sunlight from shining on the box in non-windy and sandy weather.

[0015] In one embodiment, a door for opening and closing the box is hinged at the front opening of the box body, and a heat-insulating layer is provided on the left and right sides, upper and lower sides of the inner wall of the box body and the inner side of the door by gluing. A rear cover wrapping the box body is installed on the rear side of the box body by bolts, and a heat-insulating layer is provided between the rear cover and the rear side of the box body.

[0016] In one embodiment, the two connecting components are arranged on the back cover and distributed vertically, and the connecting components include two support ears symmetrically arranged on the back cover, the two support ears are hinged with a first connecting rod through a vertical hinge pin, the two first connecting rods are hinged with a second connecting rod through a vertical pin column, the ends of the two second connecting rods are connected to the connecting seat through a connecting bolt, and the connecting bolt is fixed by a nut threadedly connected thereto, the center distance between the end hinge points of the two second connecting rods is equal to the center distance between the hinge points on the two support ears, the center distance between the two end hinge points of the first connecting rod is equal to the center of the two end hinge points of the second connecting rod, and the two pin columns are provided with a positioning structure that enables the two first connecting rods and the two second connecting rods to clamp the vertical rod.

[0017] In one embodiment, the positioning structure includes a base body provided on the pin, a fixing base provided on the base body, a first screw and a second screw respectively provided in two threaded holes on the fixing base, the first screw and the second screw are perpendicular to the axis of the corresponding pin and are located in the same vertical plane, a swivel seat is rotatably provided at the end of the second screw, a clamping seat is provided on the swivel seat, a slot for accommodating one end of the wire rope is provided on the upper surface of the clamping seat, positioning balls are provided at both ends of the wire rope to prevent the wire rope from escaping from the slot, and a third screw for pressing the wire rope is provided in the threaded hole on the clamping seat.

[0018] In one embodiment, the inner walls of the first connecting rod and the second connecting rod are both provided with tooth patterns that match with the cylindrical surface of the circular vertical rod or the edge of the square vertical rod.

[0019] In one embodiment, a ball groove is provided at a notch on one side of the slot for positioning a positioning ball at the corresponding end of the wire rope.

[0020] In one embodiment, the temperature control component includes a first baffle that blocks the first mounting groove, a side strip connected to the box body by bolts is provided at the edge of the first baffle, two first guide seats are provided on the two first guide seats, two first sliders driven by the first motor slide vertically, a motor housing is connected between the two first sliders by a first connecting rod, a second motor is provided in the motor housing, the output shaft of the second motor rotates in a circular hole in the side wall of the motor housing, a second connecting rod is provided on the output shaft of the second motor, a cylinder coaxial with the output shaft of the second motor is provided on the second connecting rod, a semiconductor cooling and heating chip is provided in the cylinder, the internal space of the semiconductor cooling and heating chip is divided into two semi-cylindrical spaces, the two side ends of the semiconductor cooling and heating chip are fixed in the cylinder by a pad layer, the cooling side of the semiconductor cooling and heating chip is provided with a first water guide wall for causing water on the chip to flow axially toward the water-absorbing material in the second mounting groove on the first baffle, and a water-absorbing material is provided on the inner wall of the 180-degree cylinder corresponding to the cooling side of the semiconductor cooling and heating chip. A second water guide wall is provided, and a plurality of heat exchange plates parallel to the cylinder axis are connected between the second water guide wall and the first water guide wall and between the heating side of the semiconductor refrigeration and heating chip and the corresponding 180-degree cylinder inner wall. A drainage hole is provided on the heat exchange plate between the second water guide wall and the first water guide wall to facilitate the water on the second water guide wall and the first water guide wall to converge to the middle. A first receiving groove is provided on the first baffle plate to cooperate with the motor square housing, the second motor output shaft, the second connecting rod and the cylinder. The motor square housing is connected to the first receiving groove by the third connecting rod when the motor square housing and the cylinder are in the box. The second baffle for closing the receiving groove is provided on the first baffle, and a first air duct which can be opposite to the cylinder body at 180 degrees is provided on the first baffle, and the first air duct and the water-absorbing material are distributed at both ends of the cylinder, and two air supply components for supplying air into the cylinder are provided in the first air duct, and a third air duct is provided on the first baffle through a support rod to guide the air transported by the air supply component in the lower half of the cylinder to the upper half of the cylinder, and a second air duct is provided on the upper side of the first air duct to guide the air from the upper half of the cylinder upward, and a second receiving groove which cooperates with the motor square housing is provided on the wall surface of the first air duct and the second air duct.

[0021] In one embodiment, a vertical screw is rotatably provided on the first guide seat and is threadedly connected to the corresponding first slider. A first gear is provided at the upper end of the screw. The first gear is engaged with a second gear. The second gear is provided on the output shaft of the first motor on the corresponding first guide seat.

[0022] In one embodiment, the air supply assembly includes a third motor disposed in the first air duct via a bracket, and a fan is disposed on an output shaft of the third motor.

[0023] In one embodiment, the wind and sand prevention assembly includes two second guide seats symmetrically arranged on the left and right sides of the box body, a sliding seat is inclined and sliding in the second guide seat, a fourth screw cooperating with the sliding seat is provided in the threaded hole on the second guide seat, a second slider is provided in the sliding seat for sliding along the direction parallel to its movement direction, a fifth screw cooperating with the second slider is provided in the threaded hole on the slide, two second sliders are hingedly connected to two first door frames and three second door frames, the three second door frames are located between the two first door frames, two third gears coaxial with their hinge points are symmetrically provided on the first door frame, two third gears on the same side of the two first door frames are meshed with each other, and elastic cloth for shielding the box body is provided on the first door frame and the second door frame by gluing, and the first door frame located on the rear side swings backward to open when the second slider and the slide seat slide obliquely upward, and swings forward to retract when the second slider and the slide seat slide obliquely downward.

[0024] The beneficial effects of the present invention are:

[0025] 1. The present invention can realize four temperature control modes in the box according to the temperature characteristics of the geographical location where the junction box is installed, namely, no temperature control and no dehumidification, dehumidification and heating, simple heating and cooling and dehumidification, by installing a temperature control component at the first installation slot at the bottom of the box. This ensures that the box uses photovoltaic power or city power to always maintain the appropriate temperature and humidity inside the junction box that are suitable for the efficient operation of the inverter, ensures that the inverter installed in the box has high working efficiency, and thus improves the efficiency of photovoltaic power generation.

[0026] 2. The temperature control component installed in the box of the present invention integrates heating, cooling and dehumidification, effectively improving its integration, reducing the space occupied by the heating system and dehumidification system in the junction box, and effectively reducing the cost of the heating system and dehumidification system.

[0027] 3. The wind and sand shield assembly installed on the upper side of the box in this invention can be retracted during non-windy weather to provide some shade from direct sunlight, ensuring that the temperature inside the box does not rise too high due to direct sunlight, thereby maintaining the inverter inside the box at an appropriate temperature and high operating efficiency. Furthermore, the fan assembly can be deployed during windy and sandy weather to provide 360-degree shielding over the upper half of the box. This prevents excessive intrusion of wind and sand when the box door is opened for maintenance, ensuring that the combiner box can be repaired normally.

[0028] 4. The two connecting components arranged on the rear cover of the box body in the present invention can realize the effective fixed installation of the box body of the combiner box on round vertical bars or square vertical bars of different horizontal sizes through their own unique structure, and the installation operation is simple and convenient, and the installation efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a first overall schematic diagram of the present invention;

[0030] Figure 2 is a second overall cross-sectional view of the present invention;

[0031] Figure 3 It is an overall cross-sectional view of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the wind and sand protection component;

[0033] Figure 5 It is a partial schematic diagram of the wind and sand protection component;

[0034] Figure 6 Schematic diagram of the recovery state of the wind and sand protection component in coordination with the first lever and the second lever;

[0035] Figure 7 1. is a schematic diagram of the sand-proof assembly in the deployed state in cooperation with the first lever and the second lever;

[0036] Figure 8 It is a schematic diagram of the box structure;

[0037] Figure 9 It is a schematic diagram of the temperature control component;

[0038] Figure 10 This is the first cross-sectional view of the thermostat assembly and the box body;

[0039] Figure 11 This is the second cross-sectional view of the thermostat assembly and the box body;

[0040] Figure 12 It is a schematic diagram of the cross-sectional structure of the cylinder in the temperature control component;

[0041] Figure 13 It is a schematic diagram of the structure of the first baffle in the temperature control component;

[0042] Figure 14 is a schematic diagram of connected components;

[0043] Figure 15 is a cross-sectional view of the connection assembly;

[0044] Figure 16 It is a cross-sectional view of the connection assembly;

[0045] Figure 17 It is a schematic diagram of the wire rope structure in the connection assembly;

[0046] Figure 18 This is a cross-sectional view of the connection assembly and the circular vertical rod;

[0047] Figure 19This is a cross-sectional view of the connection assembly and the square vertical rod;

[0048] Figure 20 This is the dehumidification and heating status diagram of the temperature control components in the box;

[0049] Figure 21 This is a simple temperature rise state diagram of the temperature control component in the box;

[0050] Figure 22 This is the cooling and dehumidification status diagram of the temperature control components in the box;

[0051] Name of the label in the figure:

[0052] 101, box body; 102, first mounting slot; 103, box door; 104, thermal insulation layer; 105, rear cover; 106, vertical rod; 107, first lever; 108, second lever;

[0053] 200, connecting assembly; 201, support ear; 202, first connecting rod; 203, pin; 204, second connecting rod; 205, tooth pattern; 206, seat; 207, fixing seat; 208, first screw; 209, second screw; 210, rotating sleeve; 211, retaining seat; 212, retaining groove; 213, ball groove; 214, third screw; 215, connecting seat; 216, connecting bolt; 217, nut; 218, wire rope; 219, positioning ball; 220, positioning structure;

[0054] 300, thermostat assembly; 301, first baffle; 302, first receiving slot; 303, second mounting slot; 304, side strip; 305, first air duct; 306, second air duct; 307, second receiving slot; 308, first guide seat; 309, screw; 310, first gear; 311, second gear; 312, first motor; 313, first slider; 314, first connecting rod; 315, motor housing; 316, second motor 317, second connecting rod; 318, cylinder; 319, cushion layer; 320, semiconductor cooling and heating chip; 321, first water guide wall; 322, second water guide wall; 323, heat exchange plate; 324, drainage hole; 325, third connecting rod; 326, second baffle; 327, water-absorbing material; 328, air supply assembly; 329, bracket; 330, third motor; 331, fan; 332, third air duct; 333, support rod;

[0055] 400. Wind and sand protection assembly; 401. Second guide seat; 402. Sliding seat; 403. Fourth screw; 404. Fifth screw; 405. Second slider; 406. Third gear; 407. First door frame; 408. Second door frame; 409. Elastic cloth. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0057] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like, indicating positions or relationships, are based on those shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or element being referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention.

[0058] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0059] like Figure 1-22 As shown, a combiner box suitable for multiple installation positions is used in a photovoltaic power generation system, including:

[0060] Box 101 is used to install fuses, circuit breakers, lightning arresters, disconnectors and inverters.

[0061] The two connecting assemblies 200 are used to quickly fix the box 101 on round or square vertical rods 106 of different specifications and sizes.

[0062] The temperature control component 300 disposed in the first installation groove 102 at the bottom of the box body 101 is used to control the temperature and dehumidify the box body 101. The temperature control component 300 has the functional characteristics of integrating dehumidification, heating and cooling.

[0063] The wind and sand protection assembly 400 provided on the top of the box 101 is used to prevent wind and sand from entering the box 101 when the electrical components in the box 101 are repaired in windy and sandy weather, or to prevent direct sunlight from shining on the box 101 in non-windy and sandy weather.

[0064] In a further embodiment, Figure 1 、 Figure 3 As shown, a door 103 for opening and closing the box body 101 is hinged at the front box opening of the box body 101, and a heat insulation layer 104 is provided on the left and right sides, upper and lower sides of the inner wall of the box body 101 and the inner side of the door 103 by gluing. A rear cover 105 is installed on the rear side of the box body 101 by bolts to wrap it, and a heat insulation layer 104 is provided between the rear cover 105 and the rear side of the box body 101.

[0065] In a further embodiment, Figure 1 、 Figure 14 、 Figure 15 、 Figure 16 、 Figure 18 、 Figure 19 As shown, the two connecting components 200 are arranged on the back cover 105 and distributed vertically, and the connecting components 200 include two support ears 201 symmetrically arranged on the back cover 105, and the two support ears 201 are hinged with a first connecting rod 202 through a vertical hinge pin, and the two first connecting rods 202 are hinged with a second connecting rod 204 through a vertical pin column 203, and the ends of the two second connecting rods 204 are connected to the connecting seat 215 through a connecting bolt 216, and the connecting bolt 216 is fixed by a nut 217 threadedly connected thereto, and the center distance between the end hinge points of the two second connecting rods 204 is equal to the center distance between the hinge points on the two support ears 201, and the center distance between the two end hinge points of the first connecting rod 202 is equal to the center of the two end hinge points of the second connecting rod 204, and the two pin columns 203 are provided with a positioning structure 220 for clamping the two first connecting rods 202 and the two second connecting rods 204 on the vertical rod 106.

[0066] In a further embodiment, Figure 14 、 Figure 15 、 Figure 16 、 Figure 17 、 Figure 18 、 Figure 19 As shown, the positioning structure 220 includes a seat body 206 provided on the pin 203, a fixing seat 207 provided on the seat body 206, and a first screw 208 and a second screw 209 respectively provided in the two threaded holes on the fixing seat 207, the first screw 208 and the second screw 209 are perpendicular to the axis of the corresponding pin 203 and are located in the same vertical plane, a swivel seat is rotatably provided at the end of the second screw 209, a clamping seat 211 is provided on the swivel seat, and a slot 212 for accommodating one end of the wire rope 218 is provided on the upper surface of the clamping seat 211, and positioning balls 219 are provided at both ends of the wire rope 218 to prevent the wire rope 218 from escaping from the slot 212, and a third screw 214 for pressing the wire rope 218 is provided in the threaded hole on the clamping seat 211.

[0067] In a further embodiment, Figure 14 、 Figure 15 As shown, the inner walls of the first connecting rod 202 and the second connecting rod 204 are both provided with tooth patterns 205 that match with the cylindrical surface of the circular vertical rod 106 or the edge of the square vertical rod 106 .

[0068] In a further embodiment, Figure 14 、 Figure 18 、 Figure 19 As shown, a ball groove 213 for positioning a positioning ball 219 at the corresponding end of the wire rope 218 is opened at a notch on one side of the slot 212.

[0069] In a further embodiment, Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13As shown, the temperature control component 300 includes a first baffle 301 that blocks the first mounting groove 102. A side strip 304 connected to the box body 101 by bolts is provided at the edge of the first baffle 301. Two first guide seats 308 are provided on the first baffle 301. Two first sliders 313 driven by a first motor 312 slide vertically on the two first guide seats 308. A motor square housing 315 is connected between the two first sliders 313 through a first connecting rod 314. The motor square housing 315 is provided with The second motor 316 has an output shaft that rotates in a circular hole on the side wall of the motor housing 315. A second connecting rod 317 is provided on the output shaft of the second motor 316, which is perpendicular to the output shaft. A cylinder 318 coaxial with the output shaft of the second motor 316 is provided on the second connecting rod 317. A semiconductor cooling and heating chip 320 is provided in the cylinder 318, which divides its internal space into two semi-cylindrical spaces. Both ends of the semiconductor cooling and heating chip 320 are fixed to the cylinder 318 by pads 319. The cooling side of the semiconductor cooling and heating chip 320 is provided with a first water guide wall 321 that allows the water thereon to flow axially toward the water-absorbing material 327 in the second mounting groove 303 on the first baffle 301. The inner wall of the 180-degree cylinder 318 corresponding to the cooling side of the semiconductor cooling and heating chip 320 is provided with a second water guide wall 322 that allows the water thereon to flow axially toward the water-absorbing material 327 in the second mounting groove 303 on the first baffle 301. The second water guide wall 322 and the first water guide wall 321 and the semiconductor cooling and heating chip 320 are connected. Several heat exchange plates 323 parallel to the axis of the cylinder 318 are connected between the heating side of the heating chip 320 and the inner wall of the corresponding 180-degree cylinder 318. The heat exchange plates 323 between the second water guide wall 322 and the first water guide wall 321 are provided with drainage holes 324 to facilitate the convergence of water on the second water guide wall 322 and the first water guide wall 321 to the middle. The first baffle 301 is provided with a first receiving groove 302 that cooperates with the motor square housing 315, the output shaft of the second motor 316, the second connecting rod 317 and the cylinder 318.The motor housing 315 is connected to a second baffle 326 via a third connecting rod 325, which closes the first receiving slot 302 when the motor housing 315 and the cylinder 318 are located within the housing 101. The first baffle 301 is provided with a first air duct 305 that is 180 degrees opposite the cylinder 318. The first air duct 305 and the water-absorbing material 327 are located at both ends of the cylinder 318. The first air duct 305 is provided with two air supply assemblies 328 that supply air into the cylinder 318. A third air duct 332 is provided on the first baffle 301 via a support rod 333, which guides air delivered by the air supply assemblies 328 from the lower half of the cylinder 318 into the upper half of the cylinder 318. A second air duct 306 is provided on the upper side of the first air duct 305, which guides air from the upper half of the cylinder 318 upward. Second receiving slots 307 that cooperate with the motor housing 315 are formed on the walls of the first and second air ducts 305 and 306.

[0070] In a further embodiment, Figure 11 As shown, a vertical screw 309 is rotatably provided on the first guide seat 308 and is threadedly connected to the corresponding first slider 313. A first gear 310 is provided at the upper end of the screw 309. The first gear 310 is engaged with the second gear 311. The second gear 311 is provided on the output shaft of the first motor 312 on the corresponding first guide seat 308.

[0071] In a further embodiment, Figure 10 As shown, the air supply assembly 328 includes a third motor 330 disposed in the first air duct 305 through a bracket 329 , and a fan 331 is disposed on the output shaft of the third motor 330 .

[0072] In a further embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7As shown, the wind and sand prevention component 400 includes two second guide seats 401 symmetrically arranged on the left and right sides of the box body 101, a slide 402 is tilted and slidably provided in the second guide seat 401, a fourth screw 403 cooperating with the slide 402 is provided in the threaded hole on the second guide seat 401, a second slider 405 is provided in the slide 402 for sliding along a direction parallel to its movement direction, a fifth screw 404 cooperating with the second slider 405 is provided in the threaded hole on the slide 402, two first door frames 407 and three second door frames 408 are hinged on the two second door frames 405, and the three second door frames 408 are located at the two first door frames 4 07, two third gears 406 coaxial with the hinge point are symmetrically arranged on the first door frame 407, and the two third gears 406 on the same side of the two first door frames 407 are meshed with each other. The first door frame 407 and the second door frame 408 are glued with elastic cloth 409 for shielding the box body 101. When the second slider 405 and the slide seat 402 slide obliquely upward, the first door frame 407 located at the rear side swings backward to open through the cooperation with the second lever 108 on the corresponding side of the box body 101, and when the second slider 405 and the slide seat 402 slide obliquely downward, it swings forward to retract through the cooperation with the first lever 107 on the corresponding side of the box body 101.

[0073] The temperature adjusting assembly 300 installed at the first installation groove 102 of the bottom of the box body 101 can realize four temperature adjusting modes, i.e., no temperature adjusting and no dehumidifying, dehumidifying and temperature increasing, pure temperature increasing and refrigeration dehumidifying, according to the temperature characteristics of the region where the box body 101 is installed, so that the box body 101 always has suitable temperature and humidity suitable for the efficient operation of the inverter when photovoltaic power or mains power is used, the inverter installed in the box body 101 has high working efficiency, and the efficiency of photovoltaic power generation is improved. The temperature adjusting assembly 300 installed in the box body 101 integrates heating, refrigeration and dehumidification, effectively improves the integration degree, reduces the space occupied by the heating system and the dehumidification system in the box body 101, and effectively reduces the cost of the heating system and the dehumidification system. The wind and sand prevention assembly 400 installed on the upper side of the box body 101 is retracted in non-windy and sandy weather to shield the sun from directly irradiating the box body 101, so that the temperature in the box body 101 is not too high due to the direct irradiation of the sun, and the inverter in the box body 101 has high working efficiency at suitable temperature. In addition, the fan 331 is expanded in windy and sandy weather to form a 360-degree shield on the upper half of the box body 101, which prevents a large amount of wind and sand from entering the box body 101 when the box door 103 is opened for maintenance, and ensures that the box body is maintained normally. The two connecting assemblies 200 arranged on the rear cover 105 of the box body 101 can effectively fix and install the box body 101 on the circular vertical rod 106 or the square vertical rod 106 with different horizontal dimensions through the unique structure thereof, and the installation operation is simple and convenient, and the installation efficiency is high.

[0074] The operation flow of the present application is as follows:

[0075] In the initial state, the box door 103 is in the closed state, the elastic cloth 409 in the wind and sand prevention assembly 400 is in the retracted state and forms a downward shield on the box body 101, the second sliding block 405 is located at the bottom of the corresponding sliding seat 402, and the sliding seat 402 is located at the bottom of the corresponding second guide base 401. The first air duct 305 and the second air duct 306 in the temperature adjusting assembly 300 are opposite to the refrigeration side half cylinder 318 body and the heating side half cylinder 318 body of the semiconductor refrigeration and heating chip 320, respectively, the motor square shell 315 is located in the second containing groove 307 of the first air duct 305 and the second air duct 306, the refrigeration side half cylinder 318 body and the heating side half cylinder 318 body of the semiconductor refrigeration and heating chip 320 are opposite to the two ends of the third air duct 332, respectively, and the second baffle 326 closes the first containing groove 302 on the first baffle 301.

[0076] The process of fixing the box body 101 on the vertical rod 106 is as follows:

[0077] Remove the connecting seats 215 at the ends of the two second connecting rods 204 in the connecting assembly 200 so that the two second connecting rods 204 can swing freely, open the two first connecting rods 202 and the two second connecting rods 204 of the connecting assembly 200 and form a clamping state with the vertical rod 106, and connect the two second connecting rods 204 to the connecting seats 215 through the connecting bolts 216 and nuts 217, so that the inner tooth patterns 205 of the two first connecting rods 202 and the two second connecting rods 204 are in contact with the vertical rod 106, and then, pass the two ends of the wire rope 218 around the vertical rod 106 and insert them into the slots 212 on the two clamping seats 211 respectively. And make the positioning ball 219 at the end of the wire rope 218 located in the ball groove 213 at the notch of the corresponding slot 212, tighten the third screw 214 and fix the wire rope 218, rotate the second screw 209 on the two fixing seats 207 to tighten the wire rope 218, and the tightened wire rope 218 can make the two first connecting rods 202 and the two second connecting rods 204 clamped and fixed to the vertical rod 106, then, rotate the first screw 208 on the two fixing seats 207 so that the two first screws 208 are against the vertical rod 106 to effectively position the two first connecting rods 202 and the two second connecting rods 204.

[0078] like Figure 6 、 Figure 7 As shown, when sandstorms come, the slide 402 in the sandstorm prevention assembly 400 is manually slid forward and upward relative to the second guide seat 401, and at the same time, the second slider 405 is slid forward and upward relative to the corresponding slide 402. During the upward sliding of the two second sliders 405, the rear first door frame 407 swings backward under the action of the second lever 108, and the rear first door frame 407 drives the front first door frame 407 to swing forward through the corresponding third gear 406 and the third gear 406 on the front first door frame 407. The forward and backward swinging of the two first door frames 407 unfolds the elastic cloth 409 and drives the three second door frames 408 to open and form an arc-shaped support for the opened elastic cloth 409. The elastic cloth 409 also rises during the oblique rising process of the second slider 405. Finally, after the two first door frames 407 drive the elastic cloth 409 to form a 180-degree arc, it forms a shielding protection for the upper half of the box body 101, making it convenient to open the box door 103 to repair the electrical components in the box body 101.

[0079] When there is no need to perform temperature control and dehumidification in the box 101 , the first motor 312 , the second motor 316 , the third motor 330 and the semiconductor cooling and heating chip 320 in the temperature control assembly 300 are not powered on and are not working.

[0080] When the temperature in the box 101 needs to be increased and dehumidified, the two third motors 330 are started to drive the two fans 331 to rotate and blow the air in the box 101 into the cooling side semi-cylinder 318 of the cylinder 318 through the first air duct 305. At the same time, the semiconductor cooling and heating chip 320 is started. The semiconductor cooling and heating chip 320 cools on its cooling side and heats on its heating side. The air entering the cooling side of the cylinder 318 through the first air duct 305 quickly exchanges heat with the heat exchange plate 323 arranged between the first water guide wall 321 and the second water guide wall 322. The moisture in the air condenses on the low-temperature heat exchange plate 323 to reach For the purpose of dehumidification, condensed water reaches the second water guide wall 322 through the heat exchange plate 323 and reaches the bottom of the second water guide wall 322 through the drainage holes 324 on the heat exchange plate 323 and is drained to the water-absorbing material 327 on the first baffle 301, and is absorbed by the water-absorbing material 327 and discharged out of the box body 101. The dehumidified air reaches the heating side of the cylinder 318 through the third air duct 332 and is heated by the heat exchange plate 323 on the heating side. The heated and dehumidified air is guided by the second air duct 306 to the upper part of the box body 101 without forming mixing interference with the air entering the first air duct 305, thereby improving the heating and dehumidification efficiency of the air.

[0081] When it is necessary to simply heat the inside of the box 101, the two first motors 312 are started to drive the motor housing 315 and the cylinder 318 to move downward synchronously. When the motor housing 315, the output shaft of the second motor 316, the second connecting rod 317 and the cylinder 318 synchronously arrive at the first receiving groove 302 on the first baffle 301 and just close the first receiving groove 302, the heating side in the cylinder 318 is just opposite to the first air duct 305. Under the action of the air supply component 328, the air entering the first air duct 305 enters the heating side of the cylinder 318 and is heated by the heat exchange plate 323 in the heating side. The heated air is blown to the second air duct 306 through the third air duct 332 and moves to the upper part of the box 101 under the guidance of the second air duct 306.

[0082] When the air in the box 101 needs to be dehumidified and cooled, the second motor 316 is started to drive the cylinder 318 to rotate 180 degrees on the basis that the refrigeration side of the cylinder 318 is outside the box 101, so that the heating side half of the cylinder 318 is turned to the top and opposite to the first air duct 305. Under the action of the air supply assembly 328, the air entering the first air duct 305 enters the refrigeration side of the cylinder 318 and exchanges heat quickly with the heat exchange plate 323 in the refrigeration side. The moisture in the air condenses on the heat exchange plate 323 and reaches the first water guide wall 321 at the bottom along the heat exchange plate 323. The condensed water reaching the first water guide wall 321 is gathered at the middle bottom of the first water guide wall 321 under the action of gravity and is drained to the water absorption material 327 on the first baffle 301 for discharge. The dehumidified air is blown to the second air duct 306 through the third air duct 332 and is guided by the second air duct 306 to the upper part of the box 101, thereby realizing the dehumidification and cooling of the air in the box 101.

[0083] When the box 101 does not need to be equipped with the temperature adjusting assembly 300 in order to reduce the purchase cost, the temperature adjusting assembly 300 at the bottom of the box 101 is removed and a plastic baffle is installed by bolts to shield the first mounting groove 102.

Claims

1. A combiner box suitable for multiple installation positions, used in a photovoltaic power generation system, characterized in that: include: Box, used to install fuses, circuit breakers, lightning arresters, disconnect switches and inverters; Two connecting components are used to quickly fix the box on round or square vertical poles of different specifications and sizes; The thermostat is installed in the first mounting groove at the bottom of the box body, which is used to adjust the temperature and dehumidify the box body. The thermostat has the functions of dehumidification, heating and cooling. The wind and sand protection component is installed on the top of the box to prevent sand from entering the box when repairing the electrical components in the box in windy and sandy weather, or to prevent direct sunlight from shining on the box in non-windy and sandy weather; A door is hingedly connected to the front opening of the box body for opening and closing, and the left and right sides, upper and lower sides of the inner wall of the box body and the inner side of the door are all provided with a heat insulation layer by gluing. A rear cover wrapped around the rear side of the box body is fixed by bolts, and a heat insulation layer is provided between the rear cover and the rear side of the box body. The two connecting assemblies are arranged on the rear cover and distributed vertically, and the connecting assembly includes two support ears symmetrically arranged on the rear cover, each of the two support ears is hinged to a first connecting rod via a vertical hinge pin, and each of the two first connecting rods is hinged to a second connecting rod via a vertical pin column, and the ends of the two second connecting rods are connected to the connecting seat via a connecting bolt, and the connecting bolt is fixed by a nut threadedly connected thereto, and the center distance between the end hinge points of the two second connecting rods is equal to the center distance between the hinge points on the two support ears, and the center distance between the two end hinge points of the first connecting rod is equal to the center of the two end hinge points of the second connecting rod, and the two pin columns are provided with a positioning structure that enables the two first connecting rods and the two second connecting rods to clamp the vertical rod; The positioning structure includes a seat body provided on the pin, a fixing seat provided on the seat body, a first screw and a second screw respectively provided in two threaded holes on the fixing seat, the first screw and the second screw are perpendicular to the axis of the corresponding pin and are located in the same vertical plane, a swivel seat is rotatably provided at the end of the second screw, a clamping seat is provided on the swivel seat, a clamping slot for accommodating one end of the wire rope is provided on the upper surface of the clamping seat, positioning balls are provided at both ends of the wire rope to prevent the wire rope from escaping from the clamping slot, and a third screw for pressing the wire rope is provided in the threaded hole on the clamping seat; A ball groove for positioning a positioning ball at the corresponding end of the wire rope is provided at a notch on one side of the clamping slot.

2. The combiner box suitable for multiple installation positions according to claim 1, characterized in that: The inner walls of the first connecting rod and the second connecting rod are both provided with tooth patterns that match with the cylindrical surface of the circular vertical rod or the edge of the square vertical rod.

3. The combiner box suitable for multiple installation positions according to claim 1, characterized in that: The temperature control assembly includes a first baffle that blocks the first mounting groove, a side strip connected to the box body by bolts is provided at the edge of the first baffle, two first guide seats are provided on the two first guide seats, two first sliders driven by the first motor are vertically slid, a motor square housing is connected between the two first sliders by a first connecting rod, a second motor is provided in the motor square housing, the output shaft of the second motor rotates in a circular hole in the side wall of the motor square housing, a second connecting rod perpendicular to the output shaft of the second motor is provided, a cylinder coaxial with the output shaft of the second motor is provided on the second connecting rod, a semiconductor cooling and heating chip is provided in the cylinder, the internal space of the semiconductor cooling and heating chip is divided into two semi-cylindrical spaces, both side ends of the semiconductor cooling and heating chip are fixed in the cylinder by a pad, the cooling side of the semiconductor cooling and heating chip is provided with a first water guide wall to cause water on the chip to flow axially to the water-absorbing material in the second mounting groove on the first baffle, and a second guide wall is provided on the 180-degree inner wall of the cylinder corresponding to the cooling side of the semiconductor cooling and heating chip to cause water on the chip to flow axially to the water-absorbing material in the second mounting groove on the first baffle. Water wall, a number of heat exchange plates parallel to the cylinder axis are connected between the second water guide wall and the first water guide wall and between the heating side of the semiconductor refrigeration and heating chip and the corresponding 180-degree cylinder inner wall, and the heat exchange plate between the second water guide wall and the first water guide wall is provided with a drainage hole for facilitating the water on the second water guide wall and the first water guide wall to converge to the middle, the first baffle is provided with a first receiving groove that cooperates with the motor square housing, the second motor output shaft, the second connecting rod and the cylinder, the motor square housing is connected to the first receiving groove by a third connecting rod when the motor square housing and the cylinder are in the box. The second baffle is closed, and the first baffle is provided with a first air duct which can be opposite to the cylinder body at 180 degrees. The first air duct and the water-absorbing material are distributed at both ends of the cylinder. The first air duct is provided with two air supply components for supplying air into the cylinder. The first baffle is provided with a third air duct through a support rod to guide the air transported by the air supply component in the lower half of the cylinder to the upper half of the cylinder. The upper side of the first air duct is provided with a second air duct to guide the air from the upper half of the cylinder upward. The walls of the first air duct and the second air duct are provided with a second receiving groove which cooperates with the motor square housing.

4. The combiner box suitable for multiple installation positions according to claim 3, characterized in that: A vertical screw is rotatably provided on the first guide seat and is threadedly connected to the corresponding first slider. A first gear is provided on the upper end of the screw. The first gear is engaged with a second gear. The second gear is provided on the output shaft of the first motor on the corresponding first guide seat.

5. The combiner box suitable for multiple installation positions according to claim 3, characterized in that: The air supply assembly includes a third motor arranged in the first air duct through a bracket, and a fan is arranged on the output shaft of the third motor.

6. The combiner box suitable for multiple installation positions according to claim 1, characterized in that: The two cams are connected with each other via a screw thread on the first and second guide rails, and the two cams are connected with each other via a screw thread on the first and second guide rails, and the two cams are connected with each other via a screw thread on the second and second guide rails.

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