High-voltage cabinet for power generation by photovoltaics with a protective structure

Abstract

High-voltage cabinet for photovoltaic power generation with a protective structure, characterized in that the high-voltage cabinet comprises: a cabinet body (1), wherein the inner wall of the cabinet body (1) is provided with a fire sensor (8) and a temperature and humidity sensor (9), and wherein the temperature and humidity sensor (9) is located below the fire sensor (8); a nozzle adjustment component (5) arranged in the interior of the cabinet body (1), wherein a nozzle (6) is mounted on the bottom of the nozzle adjustment component (5), wherein a water inlet connection of the nozzle (6) is connected to a spray pipe (7), wherein an upper protective plate (2) is attached above the cabinet body (1), wherein a liquid storage tank (11) is fixedly mounted on top of the upper protective plate (2), and wherein an end of the spray pipe (7) facing away from the nozzle (6) is fixedly connected to a liquid storage tank (11); and wherein the nozzle adjustment component (5) comprises a drive element (51) and a driver (52), wherein the drive element (51) is arranged on the cabinet body (1), wherein the driver (52) is arranged on the drive element (51) and is used to adjust the movement of the nozzle (6) via the nozzle adjustment component (5).

Description

TECHNICAL FIELD

[0001] The invention relates to the technical field of the high-voltage cabinet for power generation by photovoltaics and in particular to a high-voltage cabinet for power generation by photovoltaics with a protective structure. STATE OF THE ART

[0002] The high-voltage photovoltaic power generation cabinet, also known as a high-voltage photovoltaic power station control cabinet or grid-connected photovoltaic cabinet, is one of the core equipment of a photovoltaic power station. Its main function is to transmit the electrical energy generated by a photovoltaic power generation system to the grid for grid connection, thereby achieving electricity feed-in and generating electricity bill revenue. At the same time, the high-voltage photovoltaic power generation cabinet can also manage the power grid, maximize the output of the power generation system's electrical energy, and monitor the voltage, current, power, and other parameters of the power grid to ensure reliable operation.

[0003] Because there are a large number of electrical elements and cables in the high-voltage photovoltaic power generation cabinet, a fire is easy to occur in the event of a short circuit, overload, or other fault; it is sprayed into the box through the nozzle to carry out extinguishing work on the photovoltaic power generation transformer box, and the nozzle is fixed in the box, and the spraying range is limited. If the fire source is located at a corner, it is easy to be left uncovered, which reduces the extinguishing effect. CONTENT OF THE PRESENT INVENTION

[0004] In view of the above problem, the present invention is proposed, in which there are a large number of electrical elements and cables in the high-voltage cabinet for photovoltaic power generation, and it is easy to cause a fire in the event of a short circuit, overload or other fault; and that it is sprayed through the nozzle in the box to carry out extinguishing work on the transformer box of photovoltaic power generation, and the nozzle is fixed in the box and the spraying range is limited, and if the fire source is located at a corner, it is easy to be left uncovered, which reduces the extinguishing effect.

[0005] Therefore, an object of the present invention is to provide a high-voltage cabinet for photovoltaic power generation with a protective structure.

[0006] In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: a high-voltage cabinet for power generation by photovoltaics with a protective structure comprising a cabinet body, wherein the inner wall of the cabinet body is provided with a fire sensor and a temperature and humidity sensor, and wherein the temperature and humidity sensor is located below the fire sensor; a nozzle adjustment component arranged in the interior of the cabinet body, wherein a nozzle is mounted on the bottom of the nozzle adjustment component, wherein a water inlet connection of the nozzle is connected to a spray pipe, wherein an upper protective plate is attached to the top of the cabinet body, and the liquid storage tank is fixedly mounted on the top of the upper protective plate, and wherein an end of the spray pipe facing away from the nozzle is fixedly connected to a liquid storage tank; and wherein the nozzle adjustment component comprises a drive element and a driver, wherein the drive element is arranged on the cabinet body, wherein the driver is arranged on the drive element and is used to adjust the movement of the nozzle via the nozzle adjustment component.

[0007] As a preferred solution of the high-voltage cabinet for photovoltaic power generation with a protective structure of the present invention, it is provided that a base is arranged at the bottom of the cabinet body, wherein a microprocessor is also arranged inside the cabinet body, wherein the microprocessor is fixedly connected to the underside of the inner wall of the cabinet body.

[0008] As a preferred solution of the high-voltage photovoltaic power generation cabinet with a protective structure of the present invention, it is provided that the drive element comprises a sliding plate slidably mounted in the cabinet body, wherein a guide rack is arranged at the rear end of the sliding plate, and wherein one side of the guide rack is connected to a transmission gear mounted in the sliding plate, wherein a connecting shaft is fixedly inserted into the transmission gear, and wherein one end of the connecting shaft is fixedly connected to a drive bevel gear.

[0009] As a preferred solution of the high-voltage photovoltaic power generation cabinet with a protective structure of the present invention, it is provided that the driver comprises an output bevel gear arranged on one side of the drive bevel gear, and wherein a second adjusting threaded rod is fixedly mounted in the center of the front end of the output bevel gear, wherein a first threaded rod nut is mounted at the connection between the second adjusting threaded rod and the sliding block, wherein the outer side of the second adjusting threaded rod is connected to the sliding block via the first threaded rod nut.

[0010] As a preferred solution of the high-voltage photovoltaic power generation cabinet with a protective structure of the present invention, it is provided that an adjustment servo motor is fixedly mounted on the outer wall of the cabinet body by means of an external screw, wherein a first adjustment threaded rod is connected to a power output of the adjustment servo motor.

[0011] As a preferred solution of the high-voltage photovoltaic power generation cabinet with a protective structure of the present invention, it is provided that a second threaded rod nut is mounted at the connection between the sliding plate and the first adjusting threaded rod, and wherein the first adjusting threaded rod is mounted via the second threaded rod nut in the center of the sliding plate.

[0012] As a preferred solution of the high-voltage photovoltaic power generation cabinet with a protective structure of the present invention, it is provided that a connecting slider is arranged at the connection between the sliding plate and the cabinet body, wherein the connecting slider is fixed to the end of the sliding plate, and wherein the sliding plate achieves sliding on the cabinet body to the left and right by the connecting slider.

[0013] As a preferred solution of the high-voltage photovoltaic power generation cabinet with a protective structure of the present invention, it is provided that at the connection between the nozzle and the sliding plate, a channel penetrating the sliding plate is arranged to guide and limit the movement of the nozzle, wherein the nozzle is connected to the liquid storage tank via a spray tube and an electrovalve is provided in the center of the spray tube.

[0014] As a preferred solution of the high-voltage photovoltaic power generation cabinet with a protective structure of the present invention, it is provided that a heat dissipation net is arranged below the adjustment servo motor and a heat dissipation net is fixed to the cabinet body.

[0015] As a preferred solution of the high-voltage photovoltaic power generation cabinet with a protective structure of the present invention, it is provided that the microprocessor is electrically connected to the adjustment servo motor and the fire sensor, and the temperature and humidity sensor is electrically connected to the microprocessor.

[0016] The advantageous effect of the present invention is that the position of the nozzle can be adjusted using the provided nozzle adjustment component. When it is necessary to spray liquid carbon dioxide through the nozzle to achieve a fire-extinguishing function, the nozzle can move along with the movement of the sliding block, thereby increasing the spray range of the nozzle. the designated transmission gear can rotate under the action of the guide rack, so that the drive bevel gear drives the driven bevel gear to rotate, and then the nozzle can move forward and backward, and through the action of the first adjusting threaded rod, the nozzle can move left and right at the same time, thereby increasing the spraying range of the nozzle. SHORT DESCRIPTION OF THE DRAWING

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in describing the embodiments will be briefly introduced below, and it is obvious that the accompanying drawings in the following description are only some of the embodiments of the present invention, and that the person having ordinary skill in the art can obtain other accompanying drawings based on these drawings without performing any creative work. Fig. 1 is a schematic diagram of the overall structure of a high-voltage cabinet for photovoltaic power generation with a protective structure according to the present invention. Fig. 2 is a schematic representation of the internal partial structure of a high-voltage cabinet for photovoltaic power generation with a protection structure according to the present invention. Fig. Figure 3 is an enlarged schematic representation of structure A in Fig. 2 of a high-voltage cabinet for photovoltaic power generation with a protective structure according to the present invention. Fig. 4 is a schematic structural diagram of a nozzle adjustment component of a high-voltage photovoltaic power generation cabinet with a protective structure according to the present invention.

[0018] Description of the Fig. 1. Cabinet body; 2. Upper protection plate; 3. Base; 4. Heat dissipation net; 5. Nozzle adjustment component; 51. Drive element; 511. Adjustment servo motor; 512. First adjustment threaded rod; 513. Slide plate; 514. Second threaded rod nut; 515. Transmission gear; 516. Guide rack; 517. Connecting shaft; 518. Drive bevel gear; 52. Follower; 521. Driven bevel gear; 522. Slide block; 523. Second adjustment threaded rod; 524. Connecting slider; 525. First threaded rod nut; 8. Fire sensor; 9. Temperature and humidity sensor; 10. Microprocessor; 6. Nozzle; 7. Spray tube; 11. Liquid storage tank; 12. Electrovalve. DETAILED DESCRIPTION

[0019] In order to make the above purpose, features and advantages of the present invention more obvious and easier to understand, the specific embodiments of the present invention are described below in detail in conjunction with the accompanying drawings.

[0020] In the following description, many specific details have been set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those described herein, and those skilled in the art may make similar generalizations in a similar manner without departing from the scope of the present invention, so the present invention is not limited to the specific embodiments disclosed below.

[0021] Second, "one embodiment" or "an embodiment" referred to herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. "In one embodiment" appears at various points in this specification, not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0022] Next, the present invention will be described in detail in conjunction with the schematic figures. In the detailed description of the embodiments of the present invention, for ease of explanation, the sectional view showing the structure of the device is not partially enlarged according to the general scale, and the schematic figures are merely examples that should not limit the scope of the present invention. Furthermore, the three-dimensional spatial dimensions such as length, width, and depth should be considered in the actual manufacturing process.

[0023] As in Fig. 1 to 4, the present embodiment provides a high-voltage cabinet for photovoltaic power generation with a protective structure comprising a cabinet body 1, and a fire sensor 8 and a temperature and humidity sensor 9 are mounted with screws on the inner wall of the cabinet body 1, and wherein the temperature and humidity sensor 9 is located below the fire sensor 8 and a nozzle adjustment component 5 is arranged in the interior of the cabinet 1, and wherein a nozzle 6 is mounted on the bottom of the nozzle adjustment component 5, wherein a water inlet connection of the nozzle 6 is connected to a spray pipe 7, and wherein the end of the spray pipe 7 facing away from the spray head 6 is fixedly connected to a liquid storage tank 11, and an upper protective plate 2 is attached above the cabinet body 1,and wherein the liquid storage tank 11 is fixedly mounted on top of the upper protective plate 2 and the nozzle adjustment component 5 comprises a drive element 51 and a driver 52, wherein the drive element 51 is arranged on the cabinet body 1, wherein the driver 52 is arranged on the drive element 51 and is used to adjust the movement of the nozzle 6 via the nozzle adjustment component 5;, wherein the drive element 51 comprises a sliding plate 513 slidably mounted in the cabinet body 1, wherein a guide rack 516 is arranged at the rear end of the sliding plate 513, and wherein one side of the guide rack 516 is connected to a transmission gear 515 mounted in the sliding plate 513, wherein a connecting shaft 517 is fixedly inserted into the transmission gear 515, and wherein one end of the connecting shaft 517 is fixedly connected to a drive bevel gear 518; wherein the driver 52 comprises a driven bevel gear 521 arranged on one side of the drive bevel gear 518, and wherein a second adjustment threaded rod 523 is fixedly mounted in the center of the front end of the driven bevel gear 521, wherein a first threaded rod nut 525 is mounted at the connection between the second adjustment threaded rod 523 and the sliding block 522, wherein the outer side of the second adjustment threaded rod 523 is screwed to the sliding block 522 via the first threaded rod nut 525, wherein a second threaded rod nut 514 is mounted at the connection between the sliding plate 513 and the first adjustment threaded rod 512, and wherein the first adjustment threaded rod 512 is mounted in the center of the sliding plate 513 via the second threaded rod nut 514, wherein one end of the first adjustment threaded rod 512 is connected to the power output of the adjustment servo motor 511 is,and the adjustment servo motor 511 is firmly mounted on the outer wall of the cabinet body 1 with external screws;, wherein an adjustment servo motor 511 is fixedly mounted on the outer wall of the cabinet body 1 by means of an external screw, wherein a first adjustment threaded rod 512 is connected to a power output of the adjustment servo motor 511; wherein a second threaded rod nut 514 is mounted at the connection between the sliding plate 513 and the first adjustment threaded rod 512, and wherein the first adjustment threaded rod 512 is mounted in the center of the sliding plate 513 via the second threaded rod nut 514; wherein a connecting slider 524 is provided at the connection between the sliding plate 513 and the cabinet body 1, and the sliding plate 513 can slide left and right on the cabinet body 1 by the connecting slider 524, wherein a channel penetrating the sliding plate 513 is arranged at the connection between the nozzle 6 and the sliding plate 513.

[0024] By applying the above technical solution, when the adjustment servo motor 511 is started, the first adjustment screw rod 512 is driven to rotate via the power output, and the sliding plate 513 can be moved left and right by the action of the second screw rod nut 514 on the first adjustment screw rod 512. Since the transmission gear 515 at the rear end of the sliding plate 513 meshes with the guide rack 516, the transmission gear 515 can be driven to rotate by the guide rack 516 while the sliding plate 513 moves. When the transmission gear 515 rotates, it in turn synchronously drives the drive bevel gear 518 to rotate via the connecting shaft 517, and the drive bevel gear 518 can drive the second adjustment screw rod 523 to rotate via the driven bevel gear 521.When the second adjustment threaded rod 523 rotates, the first threaded rod nut 525 on the second adjustment threaded rod 523 moves the slide block 522 forward and backward, thereby adjusting the position of the nozzle 6. At the same time, in order to further increase the coverage area of ​​the nozzle 6, a second set of gears 515 can be added to one side of the gear 515. The second set of gears 515 and the guide rack 516 are separated from each other and do not mesh with each other. Likewise, a second adjustment threaded rod 523 is arranged below the second set of gears 515. Since the two sets of gears 515 rotate in opposite directions, the two sets of second adjustment threaded rods 523 can be driven to rotate in opposite directions.The nozzles 6 mounted on the two sets of second adjusting threaded rods 523 also move in opposite directions, that is, when one set of nozzles 6 moves backward, the other set of nozzles 6 moves forward.

[0025] Specifically, as in Fig. 2 and Fig.4, the nozzle 6 is connected to the liquid storage tank 11 via a pipeline and a spray pipe 7, and the spray pipe 7 is fixedly connected to an electrovalve 12 at its center via a flange, and a heat dissipation network 4 is arranged below the adjustment servo motor 511, and the heat dissipation network 4 is fixed to the cabinet body 1, and a base 3 is provided at the bottom of the cabinet body 1, the bottom of the cabinet body being fixedly connected to a base, and a microprocessor 10 is also arranged inside the cabinet body 1, the microprocessor 10 is electrically connected to the adjustment servo motor 511 and the fire sensor 8, and the temperature and humidity sensor 9 is electrically connected to the microprocessor 10, and as a core component of the device, the microprocessor 10 is responsible for data processing, instruction execution, control and coordination, memory management, input and output processing,Responsible for interrupt processing and program flow control.

[0026] By adopting the above-mentioned technical solution, the microprocessor 10 is connected via the interface to the fire sensor 8, the temperature and humidity sensor 9, the adjustment servo motor 511, and the solenoid valve 12. After the microprocessor 10 is connected to the fire sensor 8 and the temperature and humidity sensor 9, the microprocessor can receive the data detected by the fire sensor 8 and the temperature and humidity sensor 9.After the microprocessor 10 is connected to the adjustment servo motor 511 and the electric valve 12, it can send instructions to the adjustment servo motor 511 and the electric valve 12 to control the operation of the adjustment servo motor 511 and the electric valve 12. The fire data and the temperature and humidity data in the cabinet body 1 are respectively acquired by the fire sensor 8 and the temperature and humidity sensor 9. The microprocessor 10, the fire sensor 8, and the temperature and humidity sensor 9 are all devices of existing public technical solutions and will not be described in detail here.Since the fire sensor 8 monitors the fire situation in the cabinet body 1 in real time, the microprocessor 10 can automatically control the operation of the adjustment servo motor 511 and the solenoid valve 12 in the event of a fire, spraying the liquid carbon dioxide in the liquid storage tank 11 downward through the spray pipe 7 and the nozzle 6 to achieve fire extinguishing. The movement of the sliding plate 513 is restricted by the connecting slider 524, so that the sliding plate 513 moves left and right. Since a pipe that can penetrate the sliding plate 513 is provided at the connection between the nozzle 6 and the sliding plate 513, the nozzle 6 can only move forward and backward along the lower end of the sliding plate 513, thereby achieving the guiding and limiting function of the nozzle 6.It should be noted that the piping between the spray pipe 7 and the nozzle 6 is a retractable corrugated pipe, which can ensure that the liquid carbon dioxide can be sprayed normally from the nozzle 6 when the nozzle 6 moves.

[0027] Working principle: The fire sensor 8 monitors the fire situation in the cabinet body 1 in real time. In the event of a fire, it can automatically control the operation of the adjustment servo motor 511 and the solenoid valve 12 through the microprocessor 10. The liquid carbon dioxide in the liquid storage tank 11 is sprayed downward through the spray pipe 7 and the spray head 6. After the adjustment servo motor 511 is started, the adjustment servo motor 511 drives the first adjustment threaded rod 512 to rotate through the power output, thereby moving the sliding plate 513 left and right. Since the transmission gear 515 at the rear end of the sliding plate 513 meshes with the guide rack 516, the transmission gear 515 can be driven to rotate by the guide rack 516 while the sliding plate 513 moves.When the transmission gear 515 rotates, it in turn synchronously drives the drive bevel gear 518 via the connecting shaft 517, causing it to rotate. The drive bevel gear 518 can drive the second adjustment threaded rod 523 via the driven bevel gear 521, causing it to rotate. When the second adjustment threaded rod 523 rotates, it moves the slide block 522 forward and backward, allowing the position of the nozzle 6 to be adjusted.

[0028] It should be noted that the above embodiments are used only to illustrate the technical solutions of the present invention and not as limitations. Although the present invention will be described in detail with reference to the better embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or replaced with equivalent solutions without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

[1] High-voltage cabinet for photovoltaic power generation with a protective structure, characterized by that the high-voltage cabinet includes the following: a cabinet body (1), wherein the inner wall of the cabinet body (1) is provided with a fire sensor (8) and a temperature and humidity sensor (9), and wherein the temperature and humidity sensor (9) is located below the fire sensor (8); a nozzle adjustment component (5) arranged in the interior of the cabinet body (1), wherein a nozzle (6) is mounted on the bottom of the nozzle adjustment component (5), wherein a water inlet connection of the nozzle (6) is connected to a spray pipe (7), wherein an upper protective plate (2) is attached above the cabinet body (1), wherein a liquid storage tank (11) is fixedly mounted on top of the upper protective plate (2), and wherein an end of the spray pipe (7) facing away from the nozzle (6) is fixedly connected to a liquid storage tank (11); and wherein the nozzle adjustment component (5) comprises a drive element (51) and a driver (52), wherein the drive element (51) is arranged on the cabinet body (1), wherein the driver (52) is arranged on the drive element (51) and is used to adjust the movement of the nozzle (6) via the nozzle adjustment component (5). [2] High-voltage cabinet for generating electricity by photovoltaics with a protective structure according to claim 1, characterized by that a base (3) is arranged on the bottom of the cabinet body (1), wherein a microprocessor (10) is also arranged in the interior of the cabinet body (1), wherein the microprocessor (10) is firmly connected to the underside of the inner wall of the cabinet body (1). [3] High-voltage cabinet for generating electricity by photovoltaics with a protective structure according to claim 2, characterized byin that the drive element (51) comprises a sliding plate (513) which is slidably mounted in the cabinet body (1), wherein a guide rack (516) is arranged at the rear end of the sliding plate (513), and wherein one side of the guide rack (516) is connected to a transmission gear (515) which is mounted in the sliding plate (513), wherein a connecting shaft (517) is fixedly inserted into the transmission gear (515), and wherein one end of the connecting shaft (517) is fixedly connected to a drive bevel gear (518). [4] High-voltage cabinet for generating electricity by photovoltaics with a protective structure according to claim 3, characterized byin that the driver (52) comprises an output bevel gear (521) which is arranged on one side of the drive bevel gear (518), and wherein a second adjusting threaded rod (523) is fixedly mounted in the center of the front end of the output bevel gear (521), wherein a first threaded rod nut (525) is mounted on the connection between the second adjusting threaded rod (523) and the sliding block (522), wherein the outer side of the second adjusting threaded rod (523) is connected to the sliding block (522) via the first threaded rod nut (525). [5] High-voltage cabinet for generating electricity by photovoltaics with a protective structure according to claim 3 or 4, characterized by that an adjustment servo motor (511) is fixedly mounted on the outer wall of the cabinet body (1) by means of an external screw, wherein a first adjustment threaded rod (512) is connected to a power output of the adjustment servo motor (511). [6] High-voltage cabinet for generating electricity by photovoltaics with a protective structure according to claim 5, characterized by that a second threaded rod nut (514) is mounted on the connection between the sliding plate (513) and the first adjusting threaded rod (512), and wherein the first adjusting threaded rod (512) is mounted via the second threaded rod nut (514) in the center of the sliding plate (513). [7] High-voltage cabinet for generating electricity by photovoltaics with a protective structure according to claim 6, characterized by that a connecting slide (524) is arranged at the connection between the sliding plate (513) and the cabinet body (1), wherein the connecting slide (524) is fastened to the end of the sliding plate (513), and wherein the sliding plate (513) achieves a sliding on the cabinet body (1) to the left and right by means of the connecting slide (524). [8] High-voltage cabinet for generating electricity by photovoltaics with a protective structure according to claim 6 or 7, characterized by that at the connection between the nozzle (6) and the sliding plate (513) a channel penetrating the sliding plate (513) is arranged to guide and limit the movement of the nozzle (6), wherein the nozzle (6) is connected to the liquid storage tank (11) via a spray pipe (7) and an electrovalve (12) is provided in the middle of the spray pipe (7). [9] High-voltage cabinet for generating electricity by photovoltaics with a protective structure according to claim 8, characterized by that a heat dissipation network (4) is arranged below the adjustment servo motor (511) and a heat dissipation network (4) is attached to the cabinet body (1). [10] High-voltage cabinet for generating electricity by photovoltaics with a protective structure according to claim 9, characterized bythat the microprocessor (10) is electrically connected to the adjustment servo motor (511) and the fire sensor (8) and the temperature and humidity sensor (9) is electrically connected to the microprocessor (10).

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