High-efficiency heat exchange photovoltaic inverter

Abstract

The utility model discloses a high-efficiency heat exchange photovoltaic inverter, which belongs to the technical field of photovoltaic inverters, aims at solving the problem that the working efficiency and the stability are influenced by poor heat dissipation performance of the photovoltaic inverter, and comprises a protection box, support legs are fixedly arranged at four corners of the bottom of the protection box, a mounting frame is fixedly arranged on the rear side in the protection box, and the mounting frame is fixedly arranged on the bottom of the protection box. A photovoltaic inverter body is fixedly installed in the protection box through an installation frame, a door plate is installed on the front side of the protection box through hinges in a hinged mode, a dustproof mechanism is arranged on the door plate, a ventilation mechanism is arranged on the upper portion of the protection box and comprises an installation base, and the installation base is fixedly installed at the top of the protection box. The ventilation mechanism is matched with the dustproof mechanism. The photovoltaic inverter body installed in the protection box can be efficiently cooled, the electric energy conversion efficiency of the photovoltaic inverter body is improved, the photovoltaic inverter body is kept in a stable working state, the service life of the photovoltaic inverter body is prolonged, and the use safety of the photovoltaic inverter body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic inverters, and in particular relates to a photovoltaic inverter with high efficiency in heat exchange. Background Art

[0002] Photovoltaic inverter (PV inverter or solar inverter) can convert the variable direct current generated by photovoltaic (PV) solar panels into alternating current (AC) at the mains frequency. It can be connected to the grid for power generation or used directly by off-grid loads. Photovoltaic inverter is one of the important balance of system (BOS) devices in the photovoltaic array system and can be used with general AC-powered equipment. Solar inverters have special functions for photovoltaic arrays, such as maximum power point tracking and islanding protection.

[0003] With the continuous development of photovoltaic technology in the prior art, photovoltaic inverters, as an important component of photovoltaic power generation systems, have a significant impact on the performance of the entire photovoltaic power generation system through their performance and efficiency. However, during the operation of traditional photovoltaic inverters, the heat generated during the conversion and control of electric energy cannot be dissipated in time, resulting in reduced working efficiency and stability of the photovoltaic inverter.

[0004] Therefore, a photovoltaic inverter with high efficiency heat exchange is needed to solve the problem that the poor heat dissipation performance of the photovoltaic inverter in the prior art affects the working efficiency and stability. Utility Model Content

[0005] The purpose of the utility model is to provide a photovoltaic inverter with high efficiency heat exchange to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic inverter with high efficiency heat exchange, comprising a protective box, wherein the four corners of the bottom of the protective box are fixedly installed with supporting legs, a mounting frame is fixedly installed on the rear side of the protective box, a photovoltaic inverter body is fixedly installed in the protective box through the mounting frame, a door panel is hingedly installed on the front side of the protective box through a hinge, a dustproof mechanism is arranged on the door panel, and a ventilation mechanism is arranged on the upper part of the protective box.

[0007] The ventilation mechanism comprises a mounting seat, the mounting seat is fixedly mounted on the top of the protection box, a fan is fixedly mounted inside the mounting seat, and a dust shield is fixedly mounted on the mounting seat on the upper part of the fan.

[0008] It should be noted in the scheme that the dustproof mechanism includes a fixed frame, which is fixedly connected to the door panel and is arranged through it, a blind is fixedly connected in the fixed frame, a mounting frame is fixedly connected to the fixed frame on the rear side of the blind, a fixed plate is inserted in the mounting frame, a dustproof net is fixedly installed in the fixed plate in a matching fixed frame, a baffle is fixedly connected to the top of the fixed plate, a handle is fixedly connected to the top of the baffle, and a limiting assembly is arranged between the baffle and the mounting frame.

[0009] It is further worth noting that the baffle is disassembled and installed on the installation frame through a limiting assembly, and the fixing plate matches the internal arrangement of the installation frame.

[0010] It should be further explained that the limit assembly includes two L-shaped card blocks, and the two L-shaped card blocks are symmetrically fixedly connected to the bottom of the baffle, and the L-shaped card blocks are corresponding to the matching openings on the installation frame, and a plug-in block is slidably arranged in the matching opening, and a plug-in interface is provided on the plug-in block to match the L-shaped card block, and a push plate is slidably arranged on the installation frame on the rear side of the plug-in block, and the front side of the plug-in block is fixedly connected to the limit plate and slides in the matching opening, and a spring is fixedly installed on the front side of the limit plate on the inside of the matching opening.

[0011] As a preferred implementation, the upper portion of the matching opening matches the bottom portion of the L-shaped card block that passes through the upper portion of the installation frame.

[0012] As a preferred implementation, the plug interface matches the L-shaped card block and is set to be L-shaped.

[0013] Compared with the prior art, the photovoltaic inverter with high efficiency heat exchange provided by the utility model has at least the following beneficial effects:

[0014] (1) The ventilation mechanism is combined with the dust-proof mechanism to efficiently dissipate heat from the photovoltaic inverter installed inside the protective box, thereby improving its energy conversion efficiency, maintaining a stable working state, and increasing its service life and safety.

[0015] (2) The dust-proof mechanism can effectively prevent external dust from entering the protective box during the heat dissipation and ventilation of the photovoltaic inverter body, thereby ensuring that the photovoltaic inverter body inside the protective box is not affected by dust, ensuring its normal heat dissipation and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal cutaway structure of the utility model;

[0018] Figure 3This is a schematic diagram of the split structure of the dustproof mechanism of the utility model;

[0019] Figure 4 for Figure 3 Schematic diagram of the structure enlarged at point A in the middle.

[0020] In the figure: 1. protective box; 101. support leg; 102. mounting frame; 2. door panel; 3. photovoltaic inverter body; 4. dustproof mechanism; 401. fixing frame; 402. shutter; 403. mounting frame; 404. fixing plate; 405. baffle; 406. handle; 407. limit assembly; 4071. L-shaped block; 4072. matching port; 4073. plug-in block; 4074. plug-in port; 4075. push plate; 4076. limit plate; 4077. spring; 408. dustproof net; 5. ventilation mechanism; 501. mounting seat; 502. dust shield; 503. fan. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments.

[0022] See also Figure 1-4 The utility model provides a photovoltaic inverter with high efficiency heat exchange, including a protective box 1, wherein legs 101 are fixedly installed at the four corners of the bottom of the protective box 1, a mounting frame 102 is fixedly installed on the rear side of the protective box 1, a photovoltaic inverter body 3 is fixedly installed in the protective box 1 through the mounting frame 102, a door panel 2 is hingedly installed on the front side of the protective box 1 through a hinge, a dustproof mechanism 4 is arranged on the door panel 2, and a ventilation mechanism 5 is arranged on the upper part of the protective box 1.

[0023] The ventilation mechanism 5 includes a mounting seat 501 , which is fixedly mounted on the top of the protection box 1 , a fan 503 is fixedly mounted inside the mounting seat 501 , and a dust shield 502 is fixedly mounted on the mounting seat 501 above the fan 503 .

[0024] The photovoltaic inverter body 3 is installed in the protective box 1 through the mounting frame 102 by opening the door panel 2. The protective box 1 can provide daily protection for the photovoltaic inverter body 3 and increase its service life. At the same time, the fan 503 is operated to allow the air in the protective box 1 to circulate with the outside, thereby improving the heat dissipation effect of the photovoltaic inverter body 3 and ensuring the normal operation of the photovoltaic inverter body 3. At the same time, with the setting of the dustproof mechanism 4, dust can be effectively prevented from entering the protective box 1.

[0025] According to the above working process, it can be known that the ventilation mechanism 5 cooperates with the dustproof mechanism 4 to efficiently dissipate heat for the photovoltaic inverter body 3 installed in the protection box 1, thereby improving its electric energy conversion efficiency, keeping it in a stable working state, and increasing its service life and safety.

[0026] Further as Figure 1 , Figure 3 and Figure 4 As shown, it is worth specifically explaining that the dustproof mechanism 4 includes a fixed frame 401, which is fixedly connected to the door panel 2 and is arranged through it, a louver 402 is fixedly connected inside the fixed frame 401, a mounting frame 403 is fixedly connected to the rear side of the louver 402 on the fixed frame 401, a fixed plate 404 is inserted into the mounting frame 403, a dustproof net 408 is fixedly installed in the fixed plate 404 to match the fixed frame 401, a baffle 405 is fixedly connected to the top of the fixed plate 404, a handle 406 is fixedly connected to the top of the baffle 405, a limiting component 407 is arranged between the baffle 405 and the mounting frame 403, the baffle 405 is disassembled and installed on the mounting frame 403 through the limiting component 407, and the fixed plate 404 matches the internal arrangement of the mounting frame 403.

[0027] Further as Figure 1 , Figure 3 and Figure 4 As shown, it is worth explaining in detail that the limit assembly 407 includes two L-shaped blocks 4071, and the two L-shaped blocks 4071 are symmetrically fixedly connected to the bottom of the baffle 405. The L-shaped blocks 4071 are corresponding to the mounting frame 403 with a matching opening 4072, and a plug-in block 4073 is slidably arranged in the matching opening 4072. The plug-in block 4073 is matched with the L-shaped block 4071 and is provided with a plug-in interface 4074. A push plate 4075 is slidably arranged on the mounting frame 403 at the rear side of the plug-in block 4073 on the mounting frame 403. The front side of the plug-in block 4073 is fixedly connected to a limit plate 4076 and limitedly slides in the matching opening 4072. A spring 4077 is fixedly installed on the front side of the limit plate 4076 on the inner side of the matching opening 4072. The upper part of the matching opening 4072 matches the bottom of the L-shaped block 4071 that penetrates through the upper part of the mounting frame 403, and the plug-in interface 4074 matches the L-shaped block 4071 and is set to be L-shaped.

[0028] Air is allowed to flow into the protective box 1 through the louver 402, and dust is adsorbed by the dustproof net 408 to prevent dust from entering the protective box 1. At the same time, when the dustproof net 408 needs to be cleaned, the push plate 4075 is pressed so that the push plate 4075 squeezes the plug block 4073 to slide inward. At this time, the plug interface 4074 is released from the limit on the L-shaped block 4071, making it easy to pull the dustproof net 408 out of the installation frame 403 through the handle 406 for easy cleaning, thereby improving ventilation and dustproof effects.

[0029] This solution has the following working process: when this device is used, the photovoltaic inverter body 3 is installed in the protective box 1 through the mounting frame 102 by opening the door panel 2. The protective box 1 can provide daily protection for the photovoltaic inverter body 3 to increase its service life. At the same time, the fan 503 is operated to allow the air in the protective box 1 to circulate with the outside, thereby improving the heat dissipation effect of the photovoltaic inverter body 3 and ensuring the normal operation of the photovoltaic inverter body 3. At the same time, under the setting of the dustproof mechanism 4, dust can be effectively prevented from entering the protective box 1. The leaves 402 allow air to flow into the protective box 1, and with the setting of the dustproof net 408, the dust is adsorbed to prevent dust from entering the protective box 1. At the same time, when the dustproof net 408 needs to be cleaned, the push plate 4075 is pressed so that the push plate 4075 squeezes the plug block 4073 to slide it inward. At this time, the plug interface 4074 is released from the limit on the L-shaped block 4071, making it easy to pull the dustproof net 408 out of the installation frame 403 through the handle 406 for easy cleaning, thereby improving ventilation and dustproof effects.

[0030] In summary: the ventilation mechanism 5 cooperates with the dustproof mechanism 4. The photovoltaic inverter body 3 installed in the protection box 1 can be efficiently cooled, thereby improving its electric energy conversion efficiency, keeping it in a stable working state, and increasing its service life and safety; the dustproof mechanism 4 can effectively prevent external dust from entering the protection box 1 during the heat dissipation and ventilation of the photovoltaic inverter body 3, thereby ensuring that the photovoltaic inverter body 3 in the protection box 1 is not affected by dust, ensuring its normal heat dissipation and operation.

Claims

1. A photovoltaic inverter with high efficiency heat exchange, comprising a protection box (1), characterized in that: The four corners of the bottom of the protection box (1) are fixedly mounted with supporting legs (101); a mounting frame (102) is fixedly mounted inside the rear side of the protection box (1); a photovoltaic inverter body (3) is fixedly mounted inside the protection box (1) via the mounting frame (102); a door panel (2) is hingedly mounted on the front side of the protection box (1) via a hinge; a dustproof mechanism (4) is arranged on the door panel (2); and a ventilation mechanism (5) is arranged on the upper part of the protection box (1); The ventilation mechanism (5) comprises a mounting seat (501), the mounting seat (501) is fixedly mounted on the top of the protection box (1), a fan (503) is fixedly mounted inside the mounting seat (501), and a dust shield (502) is fixedly mounted on the mounting seat (501) above the fan (503).

2. The photovoltaic inverter with high efficiency heat exchange according to claim 1, characterized in that: The dustproof mechanism (4) comprises a fixing frame (401), the fixing frame (401) is fixedly connected to the door panel (2) and is arranged through the fixing frame (401), a louver (402) is fixedly connected inside the fixing frame (401), a mounting frame (403) is fixedly connected to the fixing frame (401) at the rear side of the louver (402), a fixing plate (404) is inserted inside the mounting frame (403), a dustproof net (408) is fixedly installed in the fixing plate (404) to match the fixing frame (401), a baffle (405) is fixedly connected to the top of the fixing plate (404), a handle (406) is fixedly connected to the top of the baffle (405), and a limiting component (407) is arranged between the baffle (405) and the mounting frame (403).

3. The photovoltaic inverter with high efficiency heat exchange according to claim 2, characterized in that: The baffle (405) is detachably mounted on the mounting frame (403) via a limiting assembly (407), and the fixing plate (404) is matched with the internal arrangement of the mounting frame (403).

4. The photovoltaic inverter with high efficiency heat exchange according to claim 3 is characterized in that: The limiting assembly (407) comprises two L-shaped card blocks (4071), the two L-shaped card blocks (4071) are fixedly connected to the bottom of the baffle (405) symmetrically on the left and right, the L-shaped card blocks (4071) are correspondingly provided with a matching opening (4072) on the installation frame (403), a plug-in block (4073) is slidably arranged in the matching opening (4072), a plug-in interface (4074) is provided on the plug-in block (4073) to match the L-shaped card block (4071), a push plate (4075) is slidably arranged on the installation frame (403) at the rear side of the plug-in block (4073), a limiting plate (4076) is fixedly connected to the front side of the plug-in block (4073) and limitedly slides in the matching opening (4072), and a spring (4077) is fixedly installed on the front side of the limiting plate (4076) inside the matching opening (4072).

5. The photovoltaic inverter with high efficiency heat exchange according to claim 4, characterized in that: The upper portion of the matching opening (4072) matches the bottom portion of the L-shaped block (4071) and penetrates the upper portion of the installation frame (403).

6. The photovoltaic inverter with high efficiency heat exchange according to claim 4, characterized in that: The plug interface (4074) matches the L-shaped card block (4071) and is set to be L-shaped.

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