Intelligent control terminal of low-voltage power distribution cabinet based on photovoltaic inverter

Abstract

The invention relates to the technical field of power distribution control, in particular to an intelligent control terminal of a low-voltage power distribution cabinet based on a photovoltaic inverter, and solves the problems that when an intelligent control terminal in an existing low-voltage power distribution cabinet monitors and controls photovoltaic power generation, reasonable distribution of the photovoltaic power generation is inconvenient, and the photovoltaic power generation efficiency is low. The intelligent control terminal comprises a low-voltage power distribution cabinet, a power connection control mechanism is installed on the inner side of the low-voltage power distribution cabinet, a control terminal main body is installed at the upper end of the power connection control mechanism, a photovoltaic inverter is installed above the control terminal main body, and the photovoltaic inverter is installed above the control terminal main body. And an electrical detection mechanism is arranged between the control terminal main body and the photovoltaic inverter. The photovoltaic inverter and the intelligent control terminal in the low-voltage power distribution cabinet are electrically detected, so that the operation safety can be effectively improved, stable heat dissipation during operation can be conveniently maintained, and meanwhile, the intelligent control terminal is convenient to reasonably control and distribute the electric energy of photovoltaic power generation.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution control, and particularly to an intelligent control terminal for a low-voltage power distribution cabinet based on a photovoltaic inverter. Background Technique

[0002] The power distribution cabinet is a general term for the electric control center, which distributes the electric energy allocated by the upper-level power distribution equipment to the nearby loads, and at the same time provides protection, monitoring and control for the nearby loads. The power distribution cabinet is usually equipped with an intelligent control terminal to protect the circuit, and at the same time uses the intelligent control terminal to monitor the voltage, current, frequency, etc. of the circuit and can display the data. When allocating and controlling the electric energy generated by photovoltaic power generation, a photovoltaic inverter needs to be equipped on one side of the intelligent control terminal.

[0003] When the intelligent control terminal in the existing low-voltage power distribution cabinet monitors and controls photovoltaic power generation, it is not convenient for the reasonable distribution of photovoltaic power generation, and it is not convenient for electrical monitoring and stable heat dissipation during the operation of the intelligent control terminal; therefore, it does not meet the existing requirements, and for this reason, we propose an intelligent control terminal for a low-voltage power distribution cabinet based on a photovoltaic inverter. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent control terminal for a low-voltage power distribution cabinet based on a photovoltaic inverter, so as to solve the problems mentioned in the above background technique that when the intelligent control terminal in the existing low-voltage power distribution cabinet monitors and controls photovoltaic power generation, it is not convenient for the reasonable distribution of photovoltaic power generation, and it is not convenient for electrical monitoring and stable heat dissipation during the operation of the intelligent control terminal.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: An intelligent control terminal for a low-voltage power distribution cabinet based on a photovoltaic inverter, including a low-voltage power distribution cabinet, an electricity connection control mechanism is installed inside the low-voltage power distribution cabinet, a control terminal main body is installed above the electricity connection control mechanism, a photovoltaic inverter is installed above the control terminal main body, an electrical detection mechanism is installed between the control terminal main body and the photovoltaic inverter, the low-voltage power distribution cabinet includes a power distribution cabinet body, a cabinet door is rotatably connected to the front end face of the power distribution cabinet body, and a plurality of indicator lights are fixedly installed on the front end face of the cabinet door; The control terminal main body includes a terminal housing, the terminal housing is fixedly connected to the power distribution cabinet body, a sealing cover is fixedly installed on the front end face of the terminal housing, an embedded display screen is fixedly installed in the middle of the front end face of the sealing cover, serial port interfaces are provided at both ends of the terminal housing, a 4G interface is installed above one of the serial port interfaces, a positioning interface is installed above the 4G interface, and a power supply connection port is installed above the other serial port interface; The electrical detection mechanism includes a detection box which is fixedly connected to the power distribution cabinet body. A circuit board is installed inside the detection box, and a plurality of power connection posts are installed on the rear end face of the circuit board. A conductive metal frame is installed outside the rear end of each power connection post, and an arc contact seat is slidably connected to one end of the conductive metal frame.

[0006] Preferably, the electrical detection mechanism further includes an insulating cover fixedly connected to the front end face of the detection box. A display screen is fixedly installed in the middle of the front end face of the insulating cover, and an insulating pad is provided on the inner wall of the detection box.

[0007] Preferably, the low-voltage power distribution cabinet further includes an annular ventilation cover fixedly connected to the outside of the power distribution cabinet body. A partition insulating board is fixedly installed inside the power distribution cabinet body. A plurality of flow guide sleeves are installed inside the upper end of the annular ventilation cover. Filter mounting seats are installed on both sides of the annular ventilation cover. A plurality of filter elements are inserted into the inner side of each filter mounting seat. A second ventilation board is fixedly installed inside the bottom end of the power distribution cabinet body. Two fan boxes are fixedly installed inside the bottom end of the annular ventilation cover, and a first ventilation board is installed between the two fan boxes.

[0008] Preferably, the power connection control mechanism includes a device mounting rack which is fixedly connected to the power distribution cabinet body. A power distributor is fixedly installed inside the bottom end of the device mounting rack. A plurality of power connection air switches are installed on one side of the power distributor, and a plurality of load monitors are installed above the power distributor.

[0009] Preferably, the inside of the power distribution cabinet body is divided into a device installation area and a cable winding area by a partition insulating board. The power connection control mechanism, the control terminal main body, the electrical detection mechanism, and the photovoltaic inverter are all installed in the device installation area. A plurality of the power connection air switches and load monitors are electrically connected to the indicator lights.

[0010] Preferably, an annular ventilation cavity is provided inside the annular ventilation cover. The plurality of flow guide sleeves are linearly arranged and fixedly connected to the upper end of the annular ventilation cover. The device installation area is connected to the annular ventilation cavity through the plurality of flow guide sleeves. When the two fan boxes operate, airflows are generated. Both of the two airflows pass through the fan boxes, the filter elements, and the flow guide sleeves and are input into the inner side of the device installation area.

[0011] Preferably, control components are provided inside the terminal housing and the sealing cover. The photovoltaic inverter and the embedded display screen are electrically connected to the control components.

[0012] Preferably, a spring is provided inside one end of the conductive metal frame. One end of the conductive metal frame penetrates through the detection box and the insulating pad and is connected to the arc contact seat through the spring. The rear ends of the plurality of power connection posts all penetrate through the middle of the conductive metal frame and are inserted between the detection box and the insulating pad.

[0013] Preferably, the circuit board is fixedly connected to the detection box by screws. The circuit board is fixedly welded to the plurality of power connection posts. An electronic ammeter and an electronic voltmeter are provided on the surface of the circuit board. The circuit board is electrically connected to the display screen.

[0014] Preferably, the control terminal body is an intelligent control terminal. The intelligent control terminal and the photovoltaic inverter are installed inside the low-voltage power distribution cabinet and the number of both is the same. The intelligent control terminal is connected to a plurality of photovoltaic base stations through the photovoltaic inverter. The intelligent control terminal is electrically connected to a photovoltaic grid connection cabinet and a fusion terminal. The fusion terminal performs power connection regulation on the photovoltaic grid connection cabinet and the low-voltage power distribution cabinet through the distribution network regulation system.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In the present invention, the photovoltaic power generation of a plurality of photovoltaic base stations is converted and grid-connected through the low-voltage power distribution cabinet and the photovoltaic grid connection cabinet. The data of the photovoltaic grid connection cabinet and the low-voltage power distribution cabinet are monitored through the fusion terminal. The data obtained by the fusion terminal is analyzed and processed by using the distribution network regulation system, and then the instructions are transmitted to the photovoltaic grid connection cabinet and the low-voltage power distribution cabinet by means of 4G or wireless transmission. Furthermore, the photovoltaic power generation of a plurality of photovoltaic base stations can be rationally distributed. The control components provided in the terminal housing are correspondingly connected to a plurality of power connection air switches and load monitors. The load on the lines of the plurality of power connection air switches can be monitored by the load monitor and the data is transmitted into the terminal housing. Then, the load data is processed by the control component and rationally distributed by the power distributor. Thus, the intelligent control of the alternating current converted by the photovoltaic inverter by the control terminal body is realized. 2. In the present invention, the circuit board and a plurality of conductive metal frames are both connected through the power connection posts. The detection box can closely fit and contact the surfaces of the terminal housing and the photovoltaic inverter through the spring. An electronic ammeter and an electronic voltmeter are provided on the circuit board. Thus, the circuit board can monitor the surface electricity of the terminal housing and the photovoltaic inverter in real time through the power connection posts, the conductive metal frames and the arc contact seats and display it through the display screen, effectively improving the operation safety of personnel for the low-voltage power distribution cabinet. 3. The present invention divides the inner side of the distribution cabinet body by a partition insulating board into a device installation area and a cable winding area. The device installation area can effectively protect the power connection control mechanism, the control terminal main body, the electrical detection mechanism, and the photovoltaic inverter from external environmental interference. The two fan boxes can simultaneously extract external air and filter it through multiple filters and guide it through multiple diversion sleeves, thereby facilitating ventilation of the device installation area. When draining the accumulated water inside the distribution cabinet body, the first ventilation plate and the second ventilation plate can unidirectionally discharge the input air, thereby maintaining stable ventilation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the power connection flow chart of the low-voltage distribution cabinet of the present invention; Figure 2 It is the structural schematic diagram of the low-voltage distribution cabinet of the present invention; Figure 3 It is the installation structural schematic diagram of the power connection control mechanism of the present invention; Figure 4 It is the structural schematic diagram of the annular ventilation hood of the present invention; Figure 5 It is the sectional structural schematic diagram of the partition insulating board of the present invention; Figure 6 It is the sectional structural schematic diagram of the annular ventilation hood of the present invention; Figure 7 It is the structural schematic diagram of the control terminal main body of the present invention; Figure 8 It is the structural schematic diagram of the electrical detection mechanism of the present invention; Figure 9 It is the exploded structural schematic diagram of the electrical detection mechanism of the present invention; Figure 10 It is the installation structural schematic diagram of the conductive metal frame of the present invention.

[0017] In the figure: 1, low-voltage power distribution cabinet; 101, power distribution cabinet body; 102, cabinet door; 103, indicator light; 104, annular ventilation hood; 105, partition insulation board; 106, fan box; 107, first ventilation board; 108, filter mounting seat; 109, flow guide sleeve; 110, second ventilation board; 111, filter element; 2, power connection control mechanism; 201, device mounting rack; 202, power connection air switch; 203, load monitor; 204, power distributor; 3, control terminal body; 301, terminal housing; 302, sealing cover; 303, embedded display screen; 304, positioning interface; 305, 4G interface; 306, serial port interface; 307, power supply connection port; 4, electrical property detection mechanism; 401, detection box; 402, insulation cover; 403, display screen; 404, conductive metal rack; 405, arc contact seat; 406, circuit board; 407, power connection post; 408, insulation pad; 5, photovoltaic inverter. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] Please refer to Figures 2 to 6 , an embodiment provided by the present invention: An intelligent control terminal for a low-voltage power distribution cabinet based on a photovoltaic inverter, including a low-voltage power distribution cabinet 1. The low-voltage power distribution cabinet 1 includes a power distribution cabinet body 101. The front end face of the power distribution cabinet body 101 is rotatably connected with a cabinet door 102. A plurality of indicator lights 103 are fixedly installed on the front end face of the cabinet door 102. An annular ventilation hood 104 is fixedly installed on the outside of the power distribution cabinet body 101. A partition insulation board 105 is fixedly installed inside the power distribution cabinet body 101. The inside of the power distribution cabinet body 101 is divided into a device installation area and a cable winding area by the partition insulation board 105. The power connection control mechanism 2, the control terminal body 3, the electrical property detection mechanism 4, and the photovoltaic inverter 5 are all installed in the device installation area. The device installation area can effectively protect the power connection control mechanism 2, the control terminal body 3, the electrical property detection mechanism 4, and the photovoltaic inverter 5 from external environmental interference; A plurality of flow guiding sleeves 109 are installed inside the upper end of the annular ventilation hood 104. Filter mounting seats 108 are installed on both sides of the annular ventilation hood 104. A plurality of filter elements 111 are inserted inside each filter mounting seat 108. A second ventilation plate 110 is fixedly installed inside the bottom end of the power distribution cabinet body 101. Two fan boxes 106 are fixedly installed inside the bottom end of the annular ventilation hood 104. A first ventilation plate 107 is installed between the two fan boxes 106. An annular ventilation cavity is provided inside the annular ventilation hood 104. The plurality of flow guiding sleeves 109 are linearly arranged and fixedly connected to the upper end of the annular ventilation hood 104. The device installation area and the annular ventilation cavity are connected through the plurality of flow guiding sleeves 109. When the two fan boxes 106 operate, airflows are generated. Both airflows pass through the fan boxes 106, the filter elements 111, and the flow guiding sleeves 109 and are input to the inside of the device installation area. The two fan boxes 106 can simultaneously extract external air, filter it through the plurality of filter elements 111 in sequence, and guide it through the plurality of flow guiding sleeves 109, thereby facilitating the ventilation operation of the device installation area.

[0020] Please refer to Figure 3 , a power connection control mechanism 2 is installed inside the low-voltage power distribution cabinet 1. The power connection control mechanism 2 includes a device mounting rack 201. The device mounting rack 201 is fixedly connected to the power distribution cabinet body 101. A power distributor 204 is fixedly installed inside the bottom end of the device mounting rack 201. A plurality of power connection air switches 202 are installed on one side of the power distributor 204. A plurality of load monitors 203 are installed above the power distributor 204. The plurality of power connection air switches 202 and the load monitors 203 are electrically connected to the indicator lamp 103. The load on the lines of the plurality of power connection air switches 202 can be monitored through the load monitors 203, and the data is transmitted to the inside of the terminal housing 301. Then, the load data is processed by the control element and reasonably distributed through the power distributor 204.

[0021] Please refer to Figure 3 and Figure 7, a control terminal body 3 is installed at the upper end of the power connection control mechanism 2, and a photovoltaic inverter 5 is installed above the control terminal body 3. The control terminal body 3 includes a terminal housing 301, and the terminal housing 301 is fixedly connected to the power distribution cabinet body 101. A sealing cover 302 is fixedly installed on the front end face of the terminal housing 301, and an embedded display screen 303 is fixedly installed in the middle of the front end face of the sealing cover 302. Serial port interfaces 306 are provided at both ends of the terminal housing 301. A 4G interface 305 is installed above one of the serial port interfaces 306, a positioning interface 304 is installed above the 4G interface 305, and a power connection port 307 is installed above the other serial port interface 306. Control components are provided inside the terminal housing 301 and the sealing cover 302. The photovoltaic inverter 5 and the embedded display screen 303 are both electrically connected to the control components. The load data is processed by the control element and reasonably distributed through the power distributor 204, so as to realize the intelligent control of the alternating current converted by the photovoltaic inverter 5 by the control terminal body 3.

[0022] Please refer to Figures 7 to 10 , an electrical property detection mechanism 4 is installed between the control terminal body 3 and the photovoltaic inverter 5. The electrical property detection mechanism 4 includes a detection box 401, and the detection box 401 is fixedly connected to the power distribution cabinet body 101. A circuit board 406 is installed inside the detection box 401. A plurality of power connection posts 407 are installed on the rear end face of the circuit board 406. A conductive metal frame 404 is installed on the outer side of the rear end of each power connection post 407. An arc contact seat 405 is slidably connected to one end of the conductive metal frame 404. An insulating pad 408 is provided on the inner wall of the detection box 401. A spring is provided on the inner side of one end of the conductive metal frame 404. One end of the conductive metal frame 404 penetrates through the detection box 401 and the insulating pad 408 and is connected to the arc contact seat 405 through a spring. The detection box 401 can closely fit the arc contact seat 405 with the surfaces of the terminal housing 301 and the photovoltaic inverter 5 through the spring; The rear ends of the plurality of power connection posts 407 all penetrate through the middle of the conductive metal frame 404 and are inserted between the detection box 401 and the insulating pad 408. The circuit board 406 is fixedly connected to the detection box 401 by screws, and the circuit board 406 is fixedly welded to the plurality of power connection posts 407. An insulating cover 402 is fixedly installed on the front end face of the detection box 401, and a display screen 403 is fixedly installed in the middle of the front end face of the insulating cover 402. An electronic ammeter and an electronic voltmeter are provided on the surface of the circuit board 406. The circuit board 406 is electrically connected to the display screen 403. The circuit board 406 can monitor the surface electrical properties of the terminal housing 301 and the photovoltaic inverter 5 in real time through the power connection posts 407, the conductive metal frame 404, and the arc contact seat 405 and display them through the display screen 403.

[0023] Please refer to Figure 1, the control terminal body 3 is an intelligent control terminal. The intelligent control terminal and the photovoltaic inverter 5 are installed inside the low-voltage power distribution cabinet 1 and the number of both is the same. The intelligent control terminal is connected to multiple photovoltaic base stations through the photovoltaic inverter 5. The intelligent control terminal is electrically connected to a photovoltaic grid connection cabinet and a fusion terminal. The fusion terminal conducts power connection regulation on the photovoltaic grid connection cabinet and the low-voltage power distribution cabinet through the distribution network regulation system. The photovoltaic power generation of multiple photovoltaic base stations is converted and grid-connected through the low-voltage power distribution cabinet 1 and the photovoltaic grid connection cabinet, and the fusion terminal monitors the data of the photovoltaic grid connection cabinet and the low-voltage power distribution cabinet 1.

[0024] In summary, when regulating the photovoltaic power generation, both the intelligent control terminal and the photovoltaic inverter 5 are installed inside the low-voltage power distribution cabinet 1, so that the low-voltage power distribution cabinet 1 and multiple photovoltaic base stations are all electrically connected. The photovoltaic power generation of multiple photovoltaic base stations is converted and grid-connected through the low-voltage power distribution cabinet 1 and the photovoltaic grid connection cabinet, and the fusion terminal monitors the data of the photovoltaic grid connection cabinet and the low-voltage power distribution cabinet 1. The distribution network regulation system is used to analyze and process the data obtained by the fusion terminal, and then the instructions are transmitted to the photovoltaic grid connection cabinet and the low-voltage power distribution cabinet 1 by means of 4G or wireless transmission, so as to be able to reasonably allocate the photovoltaic power generation of multiple photovoltaic base stations; When the low-voltage power distribution cabinet 1 is in operation, the control components provided in the terminal housing 301 are correspondingly connected to multiple power connection air switches 202 and load monitors 203. The photovoltaic inverter 5 converts the direct current generated by the photovoltaic power generation of multiple photovoltaic base stations into alternating current. The load monitor 203 can monitor the load of the lines on multiple power connection air switches 202 and transmit the data to the inside of the terminal housing 301. Then, the load data is processed by the control element and reasonably distributed by the power distributor 204, so as to realize the intelligent control of the alternating current converted by the photovoltaic inverter 5 by the control terminal body 3. At the same time, an electrical detection mechanism 4 is installed between the control terminal body 3 and the photovoltaic inverter 5; Specifically, a plurality of conductive metal frames 404 are installed inside the detection box 401, and the circuit board 406 is connected to the plurality of conductive metal frames 404 through electrical connection posts 407. One end of the conductive metal frame 404 penetrates through the detection box 401 and is connected to the arc contact seat 405 through a spring. Therefore, the detection box 401 can closely fit the arc contact seat 405 with the surfaces of the terminal housing 301 and the photovoltaic inverter 5 through the spring. An electronic ammeter and an electronic voltmeter are provided on the circuit board 406. Therefore, the circuit board 406 can monitor the surface electricity of the terminal housing 301 and the photovoltaic inverter 5 in real time through the electrical connection posts 407, the conductive metal frames 404 and the arc contact seat 405 and display it through the display screen 403, effectively improving the operation safety of personnel for the low-voltage power distribution cabinet 1; A partition insulation board 105 is fixedly installed inside the distribution cabinet body 101, so that the partition insulation board 105 divides the inside of the distribution cabinet body 101 into a device installation area and a cable winding area. The device installation area can effectively protect the power connection control mechanism 2, the control terminal main body 3, the electrical detection mechanism 4 and the photovoltaic inverter 5 from being interfered by the external environment. Specifically, an annular ventilation cavity is provided inside the annular ventilation hood 104. Two fan boxes 106 can simultaneously extract external air to the inside of the annular ventilation cavity and filter it through a plurality of filter elements 111 and guide it through a plurality of diversion sleeves 109 in sequence, so as to facilitate the ventilation operation of the device installation area. The second ventilation plate 110 and the first ventilation plate 107 are both installed at the bottom end of the distribution cabinet body 101, so that when draining the accumulated water inside the distribution cabinet body 101 through the first ventilation plate 107 and the second ventilation plate 110, the input air can be discharged unidirectionally, thereby maintaining stable ventilation.

[0025] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An intelligent control terminal for a low-voltage power distribution cabinet based on a photovoltaic inverter, comprising a low-voltage power distribution cabinet (1), characterized in that: The low-voltage power distribution cabinet (1) is provided with a power connection control mechanism (2) installed on the inner side, a control terminal body (3) is installed on the upper end of the power connection control mechanism (2), a photovoltaic inverter (5) is installed above the control terminal body (3), and an electrical property detection mechanism (4) is installed between the control terminal body (3) and the photovoltaic inverter (5). The low-voltage power distribution cabinet (1) comprises a power distribution cabinet (101), a cabinet door (102) is rotatably connected to the front end surface of the power distribution cabinet (101), and a plurality of indicator lights (103) are fixedly installed on the front end surface of the cabinet door (102); the control terminal body (3) comprises a terminal housing (301), the terminal housing (301) is fixedly connected to the power distribution cabinet (101), a sealing cover (302) is fixedly installed on the front end surface of the terminal housing (301), and a sealing cover (302) is fixedly installed in the middle of the front end surface of the sealing cover (302). An embedded display screen (303), serial ports (306) are provided at both ends of the terminal housing (301), a 4G port (305) is installed above one of the serial ports (306), a positioning port (304) is installed above the 4G port (305), and a power connection port (307) is installed above the other serial port (306); the electrical property detection mechanism (4) comprises a detection box (401), the detection box (401) is fixedly connected to the power distribution cabinet (101), a circuit board (406) is installed on the inner side of the detection box (401), a plurality of power connection posts (407) are installed on the rear end surface of the circuit board (406), a conductive metal frame (404) is installed on the outer side of the rear end of each power connection post (407), and one end of the conductive metal frame (404) is slidably connected to an arc-shaped contact seat (405).

2. The intelligent control terminal of the low-voltage power distribution cabinet based on the photovoltaic inverter according to claim 1 is characterized in that: The electrical property detection mechanism (4) further comprises an insulating cover (402) fixedly connected to the front end surface of the detection box (401), a display screen (403) is fixedly mounted in the middle of the front end surface of the insulating cover (402), and an insulating pad (408) is provided on the inner wall of the detection box (401).

3. The intelligent control terminal of the low-voltage distribution cabinet based on the photovoltaic inverter according to claim 2 is characterized in that: The low-voltage power distribution cabinet (1) further comprises an annular ventilation hood (104) fixedly connected to the outer side of the power distribution cabinet (101); a partition insulating plate (105) is fixedly installed on the inner side of the power distribution cabinet (101); a plurality of guide sleeves (109) are installed on the inner side of the upper end of the annular ventilation hood (104); filter mounting seats (108) are installed on both sides of the annular ventilation hood (104); a plurality of filter elements (111) are plugged into the inner side of each of the filter mounting seats (108); a second air vent plate (110) is fixedly installed on the inner side of the bottom end of the power distribution cabinet (101); two fan boxes (106) are fixedly installed on the inner side of the bottom end of the annular ventilation hood (104); and a first air vent plate (107) is installed between the two fan boxes (106).

4. The intelligent control terminal of the low-voltage power distribution cabinet based on the photovoltaic inverter according to claim 3 is characterized in that: The power connection control mechanism (2) comprises a device mounting frame (201), the device mounting frame (201) being fixedly connected to a power distribution cabinet (101), and a power distributor (204) being fixedly mounted on the inner side of the bottom end of the device mounting frame (201). A plurality of power connection air switches (202) are mounted on one side of the power distributor (204), and a plurality of load monitors (203) are mounted above the power distributor (204).

5. The intelligent control terminal of the low-voltage power distribution cabinet based on the photovoltaic inverter according to claim 4 is characterized in that: The inner side of the power distribution cabinet (101) is divided into a device installation area and a cable winding area by a partition insulating plate (105); the power connection control mechanism (2), the control terminal body (3), the electrical property detection mechanism (4) and the photovoltaic inverter (5) are all installed in the device installation area; and the plurality of power connection air switches (202) and the load monitors (203) are all electrically connected to the indicator light (103).

6. The intelligent control terminal of the low-voltage power distribution cabinet based on the photovoltaic inverter according to claim 5 is characterized in that: An annular ventilation cavity is provided inside the annular ventilation hood (104); a plurality of guide sleeves (109) are linearly arranged and fixedly connected to the upper end of the annular ventilation hood (104); the device installation area and the annular ventilation cavity are connected through the plurality of guide sleeves (109); both fan boxes (106) generate airflow when in operation; both airflows pass through the fan box (106), the filter element (111) and the guide sleeve (109) and are input into the inner side of the device installation area.

7. The intelligent control terminal of the low-voltage power distribution cabinet based on the photovoltaic inverter according to claim 6 is characterized in that: Control components are provided inside the terminal housing (301) and the sealing cover (302), and the photovoltaic inverter (5) and the embedded display screen (303) are both electrically connected to the control components.

8. The intelligent control terminal of the low-voltage power distribution cabinet based on the photovoltaic inverter according to claim 7 is characterized in that: A spring is provided on the inner side of one end of the conductive metal frame (404); one end of the conductive metal frame (404) passes through the detection box (401) and the insulating pad (408) and is connected to the arc-shaped contact seat (405) via the spring; and rear ends of the plurality of electrical connection posts (407) pass through the middle of the conductive metal frame (404) and are plugged between the detection box (401) and the insulating pad (408).

9. The intelligent control terminal of the low-voltage power distribution cabinet based on the photovoltaic inverter according to claim 8 is characterized in that: The circuit board (406) is fixedly connected to the detection box (401) by screws, the circuit board (406) is fixedly connected to a plurality of electrical posts (407) by welding, an electronic ammeter and an electronic voltmeter are provided on the surface of the circuit board (406), and the circuit board (406) is electrically connected to the display screen (403).

10. The intelligent control terminal of the low-voltage power distribution cabinet based on the photovoltaic inverter according to claim 1, characterized in that: The control terminal body (3) is an intelligent control terminal. The intelligent control terminal and the photovoltaic inverter (5) are installed on the inner side of the low-voltage distribution cabinet (1) and the number of the intelligent control terminal and the photovoltaic inverter (5) are the same. The intelligent control terminal is connected to a plurality of photovoltaic base stations via the photovoltaic inverter (5). The intelligent control terminal is electrically connected to the photovoltaic grid-connected cabinet and the fusion terminal. The fusion terminal performs power connection control on the photovoltaic grid-connected cabinet and the low-voltage distribution cabinet via the distribution network control system.

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