Power adjustment protection device for photovoltaic inverter

Abstract

The utility model relates to a photovoltaic inverter power adjustment protection device, which comprises a device chassis, and further comprises a protection net cylinder arranged at the top end of the device chassis; the protection mechanism penetrates through the top of the protection net cylinder, the protection mechanism comprises a motor shaft, the protection net cylinder penetrates through the outer portion of the motor shaft, L-shaped plate bodies are fixed to the two sides of the motor shaft, and first cleaning bristles are fixed to the inner walls of the L-shaped plate bodies. First cleaning brush bristles and second cleaning brush bristles are driven by a motor to rotate, so that the outer wall and the inner wall of a protective net barrel are cleaned in the protective net barrel protection process, the phenomenon of dust blockage in the protective net barrel is avoided, the motor can further drive a rotating barrel and blowing fan blades to rotate, and the rotating barrel and the blowing fan blades are driven by the motor to rotate. And blowing fan blades can be driven to blow and dissipate heat of the photovoltaic inverter at the same time, so that heat is directly blown out from a supporting net at the bottom, and a cleaning mechanism and a heat dissipation mechanism are integrally arranged.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic power, in particular to a photovoltaic inverter power adjustment and protection device. Background Art

[0002] As is known, an inverter is a power adjustment device composed of semiconductor devices, which is mainly used to convert DC power into AC power. It is generally composed of a boost circuit and an inverter bridge circuit. The boost circuit boosts the DC voltage of the solar cell to the DC voltage required for the inverter output control; the inverter bridge circuit converts the boosted DC voltage into an AC voltage of a common frequency. Photovoltaic inverters are the application of power electronics technology in the field of solar power generation. The industry's technical level is closely related to the development of power electronics devices, circuit topology, dedicated processor chip technology, magnetic material technology, and control theory technology. When the existing photovoltaic inverter is adjusting power, the change in its power will cause the photovoltaic inverter to generate a large amount of heat in a short time, which will cause the photovoltaic inverter to have low working efficiency and prone to failure. Although the existing photovoltaic inverter has a certain heat dissipation structure, most of the existing photovoltaic inverters are directly fixed outdoors, and photovoltaic power generation equipment and photovoltaic inverters are mostly in places with sufficient light, often with strong wind and sand. When the existing photovoltaic inverter is in use, it lacks effective safety protection and dustproof structure, which has an adverse effect on the long-term use of the photovoltaic inverter.

[0003] According to the disclosed patent 202322158819.8, a photovoltaic inverter power adjustment protection device comprises a bottom plate, a photovoltaic inverter body is fixedly mounted on the middle part of the upper surface of the bottom plate through a fixing seat, movable components are evenly distributed and fixed on the edge of the bottom of the bottom plate, a semi-circular fixed side plate is fixed on the rear edge of the upper surface of the bottom plate, a top plate is fixed on the top of the fixed side plate, and a semi-circular movable side plate is provided on the inner wall of the fixed side plate corresponding to the movable sleeve. The photovoltaic inverter power adjustment protection device is convenient for effective safety and dustproof protection of the photovoltaic inverter body through the closed cylindrical structure composed of the bottom plate, the fixed side plate, the movable side plate and the top plate, and the dustproof mesh holes thereon, and is conducive to effective heat dissipation of the photovoltaic inverter body. Through the cooperation of the rotating component and the driving component, the installation and maintenance of the photovoltaic inverter body are convenient, and it is conducive to the long-term use of the photovoltaic inverter body. In the process of realizing the utility model, the inventor found that at least the following problems in the prior art have not been solved. Although the bottom plate, the fixed side plate and the movable side plate are used as the closed cylindrical structure, the movable side plate and the top plate are used as the closed cylindrical structure, the dustproof mesh holes thereon are used as the closed cylindrical structure, the movable side plate and the top plate ... The closed cylindrical structure composed of the fixed side plate, the movable side plate and the top plate and the dustproof mesh thereon are convenient for effective safety and dustproof protection of the photovoltaic inverter body, and are conducive to effective heat dissipation of the photovoltaic inverter body. The existing photovoltaic inverters are mostly directly fixed and placed outdoors, while photovoltaic power generation equipment and photovoltaic inverters are mostly in places with sufficient light, often with strong wind and sand. The existing photovoltaic inverters lack effective safety protection and dustproof structures when in use, which has an adverse effect on the long-term use of the photovoltaic inverter. During use, the traditional photovoltaic inverter power adjustment protection device is dustproof through the side plate and the dustproof mesh. However, since the device is always exposed to the outdoors, a large amount of dust will be attached to the side plate and the dustproof mesh, which affects the heat dissipation effect of the photovoltaic inverter. Moreover, when disassembling and assembling the existing photovoltaic inverter, the side plate needs to be removed before the photovoltaic inverter is installed into the device. When installing the side plate, different components need to be repeatedly disassembled and moved, resulting in low efficiency during installation. For this reason, a new technical solution needs to be designed to solve the problem. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide a photovoltaic inverter power adjustment protection device to solve the problem that the current traditional photovoltaic inverter power adjustment protection device is dustproof through side panels and dustproof mesh holes. However, since the device is always exposed to the outdoors, a large amount of dust will adhere to the side panels and the dustproof mesh holes and clog them, affecting the heat dissipation effect of the photovoltaic inverter. Moreover, when disassembling and assembling the existing photovoltaic inverter, the side panels need to be removed before the photovoltaic inverter is installed into the device. When installing the side panels, different components need to be repeatedly disassembled and moved, resulting in a technical problem of low efficiency during installation.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a photovoltaic inverter power adjustment protection device, including a device chassis, and also including:

[0006] The protective net cylinder is installed on the top of the device chassis;

[0007] A protection mechanism is passed through the top of the protection net tube, the protection mechanism includes a motor shaft, the outside of the motor shaft is passed through the protection net tube, L-shaped plates are fixed on both sides of the motor shaft, and first cleaning bristles are fixed on the inner wall of the L-shaped plate;

[0008] A rotating cylinder is fixed at the bottom of the motor shaft, and second cleaning bristles are fixed on the outer wall of the rotating cylinder.

[0009] Preferably, the first cleaning bristles and the second cleaning bristles are respectively attached to the outer wall and the inner wall of the protective mesh tube.

[0010] Preferably, a rotating rod is fixed at the top end of the rotating cylinder, and a blowing fan blade is installed at the bottom of the rotating rod.

[0011] Preferably, a circular hole is opened at the bottom of the chassis of the device, a supporting net is installed inside the circular hole, and an inverter body is installed on the top of the supporting net.

[0012] Preferably, a motor is connected to the top of the motor shaft, and a concave frame plate is installed on the top of the motor.

[0013] Preferably, a device chassis is fixed to the bottom of the concave frame plate, and support feet are fixed to the four corners of the bottom of the device chassis.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model combines the protective net cylinder, the cleaning bristles and the blowing fan blades, not only can the first cleaning bristles and the second cleaning bristles be driven to rotate by the motor during the process of dust and heat dissipation of the protective net cylinder, so as to clean the outer wall and the inner wall of the protective net cylinder during the protection of the protective net cylinder, avoiding the clogging of dust inside the protective net cylinder, but also the motor can drive the rotating cylinder and the blowing fan blades to rotate, and can simultaneously drive the blowing fan blades to blow air to dissipate heat for the photovoltaic inverter, so that the heat is directly blown out from the bottom support net, and the cleaning mechanism and the heat dissipation mechanism are integrated, eliminating the need to set up multiple driving devices, saving energy, and solving the problem of traditional photovoltaic inverter power adjustment protection device, which is dust-proof through side panels and dust-proof mesh holes, but because the device is always exposed to the outdoors, a large amount of dust will adhere to the side panels and the dust-proof mesh holes and clog them, affecting the heat dissipation effect of the photovoltaic inverter.

[0016] 2. The utility model combines a support net and a chassis of the device. Since a photovoltaic inverter is installed on the top of the support net, the support net can be directly removed when the photovoltaic inverter is disassembled and assembled, and the support net and the photovoltaic inverter can be directly taken out. The installation mechanism and the photovoltaic inverter are integrated, which saves the need for repeated disassembly and assembly and movement of different components. This solves the technical problem that when disassembling and assembling the existing photovoltaic inverter, the side panels need to be removed before the photovoltaic inverter is installed into the device, and when installing the side panels, different components need to be repeatedly disassembled and assembled, resulting in low efficiency during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the internal structure of the protective net tube of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the rotating drum of the utility model.

[0019] In the figure: 1. device chassis; 101. support foot; 2. concave frame plate; 201. motor; 202. motor shaft; 203. L-shaped plate; 204. first cleaning bristles; 205. second cleaning bristles; 206. rotating cylinder; 207. protective net cylinder; 3. rotating rod; 301. fan blades; 302. round holes; 303. support net; 304. inverter body. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] Embodiment 1: A photovoltaic inverter power adjustment protection device, see Figure 1 to Figure 2, including a device chassis 1, and also including: a protective mesh cylinder 207, installed at the top of the device chassis 1; a protective mechanism, passing through the top of the protective mesh cylinder 207, the protective mechanism including a motor shaft 202, the motor shaft 202 is penetrated by the protective mesh cylinder 207, both sides of the motor shaft 202 are fixed with L-shaped plates 203, the inner wall of the L-shaped plate 203 is fixed with a first cleaning bristle 204; a rotating cylinder 206 is fixed to the bottom of the motor shaft 202, and the outer wall of the rotating cylinder 206 is fixed with a second cleaning bristle 205, first turn on the motor 201, the motor 201 drives the motor shaft 202, the motor shaft 202 drives the L-shaped plate 203 and the rotating cylinder 206 to rotate, the L-shaped plate 203 and the rotating cylinder 206 respectively drive the first cleaning bristle 204 and the second cleaning bristle 205 to rotate, During the protection process of the protective net cylinder 207, the outer wall and the inner wall of the protective net cylinder 207 are cleaned to avoid the dust clogging inside the protective net cylinder 207, and the rotating cylinder 206 will drive the blowing fan blades 301 to rotate when rotating, and can simultaneously drive the blowing fan blades 301 to blow air to dissipate heat for the photovoltaic inverter, so that the heat is directly blown out from the bottom support net 303, and the cleaning mechanism and the heat dissipation mechanism are integrated, eliminating the need to set up multiple driving devices, saving energy, and solving the problem of traditional photovoltaic inverter power adjustment protection device. Dust is prevented by side panels and dustproof mesh holes, but because the device is always exposed to the outdoors, a large amount of dust will adhere to the side panels and the dustproof mesh holes and clog them, affecting the heat dissipation effect of the photovoltaic inverter.

[0022] For details, see Figure 1 The first cleaning bristles 204 and the second cleaning bristles 205 are respectively attached to the outer wall and the inner wall of the protective net tube 207.

[0023] For further information, see Figure 2 A rotating rod 3 is fixed at the top of the rotating cylinder 206 , and a blowing fan blade 301 is installed at the bottom of the rotating rod 3 .

[0024] It is worth noting that see Figure 2 A circular hole 302 is provided at the bottom of the device chassis 1, a supporting net 303 is installed inside the circular hole 302, and an inverter body 304 is installed on the top of the supporting net 303. Since the photovoltaic inverter is installed on the top of the supporting net 303, the supporting net 303 can be directly removed when disassembling the photovoltaic inverter, and the supporting net 303 and the photovoltaic inverter can be directly taken out. The installation mechanism and the photovoltaic inverter are integrated, which saves the need for repeated disassembly and movement of different components. This solves the problem that when disassembling and assembling the existing photovoltaic inverter, the side panel needs to be removed, and then the photovoltaic inverter is installed into the device. When installing the side panel, different components need to be repeatedly disassembled and moved, resulting in low installation efficiency.

[0025] It is worth noting that see Figure 1The motor 201 is connected to the top of the motor shaft 202 , and a concave frame plate 2 is installed on the top of the motor 201 .

[0026] It is worth mentioning that see Figure 1 The bottom of the concave frame plate 2 is fixed with a device chassis 1, and the four corners of the bottom of the device chassis 1 are fixed with support feet 101.

[0027] When using a photovoltaic inverter power adjustment protection device, first turn on the motor 201, the motor 201 drives the motor shaft 202, the motor shaft 202 drives the L-shaped plate 203 and the rotating cylinder 206 to rotate, the L-shaped plate 203 and the rotating cylinder 206 respectively drive the first cleaning bristles 204 and the second cleaning bristles 205 to rotate, so that during the protection of the protective net cylinder 207, the outer wall and the inner wall of the protective net cylinder 207 are cleaned, avoiding the phenomenon of dust clogging inside the protective net cylinder 207, and the rotating cylinder 206 will drive the blower when rotating. The fan blades 301 rotate, which can simultaneously drive the blowing fan blades 301 to blow air and dissipate heat for the photovoltaic inverter, so that the heat is directly blown out from the support net 303 at the bottom. The cleaning mechanism and the heat dissipation mechanism are integrated, which saves the need to set up multiple driving devices and saves energy. Since the photovoltaic inverter is installed on the top of the support net 303, the support net 303 can be directly removed when disassembling and assembling the photovoltaic inverter, and the support net 303 and the photovoltaic inverter can be directly taken out. The installation mechanism and the photovoltaic inverter are integrated, which saves the need to repeatedly disassemble and move different components.

[0028] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0029] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A photovoltaic inverter power adjustment protection device, comprising a device chassis (1), characterized in that: Also includes: A protective net cylinder (207) is installed on the top of the device chassis (1); A protection mechanism is passed through the top of the protection net cylinder (207), the protection mechanism comprises a motor shaft (202), the protection net cylinder (207) is passed through the outside of the motor shaft (202), L-shaped plates (203) are fixed on both sides of the motor shaft (202), and first cleaning bristles (204) are fixed on the inner wall of the L-shaped plate (203); A rotating cylinder (206) is fixed to the bottom of the motor shaft (202), and second cleaning bristles (205) are fixed to the outer wall of the rotating cylinder (206).

2. A photovoltaic inverter power adjustment protection device as claimed in claim 1, characterized in that: The first cleaning bristles (204) and the second cleaning bristles (205) are respectively attached to the outer wall and the inner wall of the protective mesh cylinder (207).

3. A photovoltaic inverter power adjustment protection device as claimed in claim 1, characterized in that: A rotating rod (3) is fixed at the top end of the rotating cylinder (206), and a blowing fan blade (301) is installed at the bottom of the rotating rod (3).

4. A photovoltaic inverter power adjustment protection device as claimed in claim 1, characterized in that: A circular hole (302) is provided at the bottom of the device chassis (1), a support net (303) is installed inside the circular hole (302), and an inverter body (304) is installed on the top of the support net (303).

5. A photovoltaic inverter power adjustment protection device as claimed in claim 1, characterized in that: The top of the motor shaft (202) is connected to a motor (201), and the top of the motor (201) is installed with a concave frame plate (2).

6. A photovoltaic inverter power adjustment protection device as claimed in claim 5, characterized in that: A device chassis (1) is fixed to the bottom of the concave frame plate (2), and support legs (101) are fixed to the four corners of the bottom of the device chassis (1).

Images