External wiring type solar inverter

Abstract

The utility model relates to the technical field of solar inverters, and particularly discloses an external wiring type solar inverter, which comprises an inverter box body, a partition plate is arranged in the inverter box body, the partition plate divides the inverter box body into an inverter component part and a wiring part, a solar inverter component is arranged in the inverter component part, a wiring part is arranged in the wiring part, and the wiring part is connected with the inverter box body. The wiring part comprises a wiring terminal and a wiring copper bar, the inversion assembly part is detachably connected with an operation panel, the wiring part is detachably connected with a wiring panel, air inlets are formed in the two sides of the inverter box body, and a wiring terminal groove, a wiring copper bar groove and an air outlet are formed in the partition plate. According to the utility model, the problems of wrong wiring and circuit damage possibly caused by the fact that the circuit and the wiring of the solar inverter are not separated in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar inverters, in particular to an externally connected solar inverter. Background Art

[0002] With the popularization and development of solar photovoltaic power generation technology, solar inverters, as key components in photovoltaic power generation systems, are used to convert the direct current generated by solar panels into alternating current for easy access and use in homes or businesses.

[0003] However, in current solar inverter designs, the circuit part and the wiring part are usually not effectively separated. Figure 1 The solar inverter shown in the figure has a mixed layout of circuitry and wiring. Users can easily come into direct contact with high-voltage circuits due to incorrect wiring during wiring operations, increasing the risk of electric shock and posing a safety threat to the user. Furthermore, incorrect wiring can cause circuit shorts or overloads, damaging the inverter's internal electronic components, shortening the device's lifespan, and potentially even paralyzing the entire photovoltaic power generation system. Utility Model Content

[0004] In order to solve the problem of incorrect wiring and circuit damage caused by the inseparable circuit and wiring of the solar inverter in the prior art, the utility model provides an external wiring type solar inverter.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] An embodiment of the present utility model provides an external-wiring solar inverter, comprising: an inverter case, a partition plate provided in the inverter case, the partition plate dividing the inverter case into an inverter assembly portion and a wiring portion, the inverter assembly portion being provided with a solar inverter assembly, the wiring portion being provided with wiring components, the wiring components comprising wiring terminals and wiring copper bars, the inverter assembly portion being detachably connected to an operation panel, the wiring portion being detachably connected to a wiring panel, air inlets being provided on both sides of the inverter case, and the partition plate being provided with wiring terminal slots, wiring copper bar slots and air outlets.

[0007] According to some embodiments of the present invention, the wiring terminal slots and the wiring copper bus slots are staggered.

[0008] According to some embodiments of the present invention, the wiring copper busbar groove is close to the bottom surface of the inverter box.

[0009] According to some embodiments of the present invention, a mounting seat for fixing the wiring terminal is provided at the wiring terminal slot.

[0010] According to some embodiments of the present invention, the partition plate is provided with a bent portion fixed to the inverter box.

[0011] According to some embodiments of the present invention, a positioning column that cooperates with the bent portion is provided on the bottom surface of the inverter box.

[0012] According to some embodiments of the present invention, a mounting hole matching the bent portion is provided on the side of the inverter box.

[0013] According to some embodiments of the present invention, the wiring portion is provided with an exhaust hole for exhausting air from the air outlet.

[0014] According to some embodiments of the present invention, the exhaust holes are arranged in a honeycomb structure.

[0015] According to some embodiments of the present invention, the wiring portion is provided with a wiring hole.

[0016] This utility model has at least the following beneficial effects: a partition panel is installed inside the inverter housing, dividing the housing into two main sections: the inverter assembly section and the wiring section. When circuit or wiring changes are required, the operation panel and wiring panel can be opened separately. This layout effectively physically separates the circuit and wiring sections, thereby reducing safety risks during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of a solar inverter;

[0018] Figure 2 This is a structural diagram of an embodiment of the utility model;

[0019] Figure 3 This is a structural diagram of an embodiment of the utility model without the wiring panel;

[0020] Figure 4 This is an exploded schematic diagram of the operation panel and inverter box after removing the wiring panel in one embodiment of the present invention;

[0021] Figure 5 This is a schematic structural diagram of a partition plate according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The following description of the present invention, with reference to the accompanying drawings, is provided to facilitate a more comprehensive understanding of the various embodiments of the present invention as defined in the claims and their equivalents. The description includes various specific details to assist understanding, but these details should be construed as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the various embodiments described herein without departing from the scope and spirit of the present invention.

[0023] In the description of the present invention, descriptions of directions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0024] It will be understood that when one element (e.g., a first element) is “connected” to another element (e.g., a second element), the element may be directly connected to the other element or an intervening element (e.g., a third element) may be present between the element and the other element.

[0025] The embodiment of the present utility model provides an external connection type solar inverter, such as Figure 2-5 As shown, it includes: an inverter box 100, a partition plate 200 is provided in the inverter box 100, the partition plate 200 divides the inverter box 100 into an inverter assembly part 300 and a wiring part 400, the inverter assembly part 300 is provided with a solar inverter assembly 310, the wiring part 400 is provided with a wiring component 410, the wiring component 410 includes a wiring terminal 430 and a wiring copper bus 440, the inverter assembly part 300 is detachably connected to the operation panel 320, and the wiring part 400 is detachably connected to the wiring panel 420, air inlets 110 are provided on both sides of the inverter box 100, and the partition plate 200 is provided with a wiring terminal slot 210, a wiring copper bus slot 220 and an air outlet 230.

[0026] The inverter case 100 is the outer shell of the entire device, and a partition plate 200 is provided inside. The function of the partition plate 200 is to divide the case into the inverter assembly section 300 and the wiring section 400. The inverter assembly section 300 is located on one side of the partition plate 200 and is equipped with solar inverter components 310. These components are responsible for converting the direct current generated by the solar panels into alternating current. The wiring section 400 is provided with wiring terminals 430 and wiring copper busbars 440 for connecting the solar panels, solar cells and the power grid. The provision of the wiring terminals 430 and wiring copper busbars 440 makes the wiring process simpler and safer. The operation panel 320 is installed in the inverter assembly section 300 and is used to monitor and control the operating status of the inverter. The wiring panel 420 is installed in the wiring section 400 to facilitate the user to perform wiring operations. The panels of the inverter case 100 are divided into an operation panel 320 and a wiring panel 420, so that when wiring, only the wiring panel 420 needs to be opened for wiring, without opening all the panels. This design makes it easy to disassemble and assemble the panels, and solves the problem of existing solar inverters requiring all panels to be opened when wiring. Air inlets 110 are provided on both sides of the inverter case 100 to provide cooling air for internal electronic components. An air outlet 230 is provided on the partition plate 200 to discharge hot air and keep the temperature inside the inverter within a safe range. The design of the terminal slots 210 and the wiring copper busbar slots 220 can facilitate wiring and maintenance, ensure that the wiring process is carried out in an orderly manner, and also facilitate future inspection and adjustment of the wiring.

[0027] The operating principle of this utility model is as follows: a partition panel 200 is installed inside the inverter housing 100, dividing the housing into two main sections: the inverter assembly section 300 and the wiring section 400. When circuit or wiring changes are required, the operation panel 320 and wiring panel 420 can be opened separately. This layout effectively physically separates the circuit section and the wiring section 400, thereby reducing safety risks during operation.

[0028] In some embodiments, the terminal slots 210 and the copper busbar slots 220 are staggered.

[0029] The staggered arrangement of the terminal block slots 210 and the copper busbar slots 220 ensures that circuits with different functions are routed separately. For example, the DC input circuit and the AC output circuit can be routed separately, which can reduce electromagnetic interference and improve system stability. Furthermore, the staggered arrangement design can make wiring more compact, save space, and improve the integration of the device. The staggered arrangement design can also improve the safety of the device. Since the circuits with different functions are routed separately, safety issues such as short circuits or overloads caused by wiring errors can be reduced. Furthermore, the staggered arrangement design can facilitate future inspection and adjustment of the wiring, improving the maintainability of the device.

[0030] Furthermore, the copper busbar groove 220 is close to the bottom surface of the inverter box 100 .

[0031] The copper busbar trough 220 is located on the bottom of the cabinet, making wiring operations more convenient. Operators can more easily access the copper busbar 440 for wiring or maintenance. Because the copper busbar trough 220 is located on the bottom of the cabinet, it does not occupy other space within the inverter cabinet 100, thus saving internal space and making the inverter cabinet 100 more compact.

[0032] In some embodiments, a mounting base 240 for fixing the connecting terminal 430 is provided at the connecting terminal slot 210 .

[0033] The mounting base 240 can secure the terminal block 430 to prevent it from shifting due to external factors such as vibration or impact, thereby improving the stability of the wiring. Since the terminal block 430 is fixed to the mounting base 240, the operator can more easily perform wiring operations, simplifying the wiring process.

[0034] In some embodiments, the partition plate 200 is provided with a bent portion 250 fixed to the inverter housing 100 .

[0035] The bend 250 can be connected to the inverter case 100 by welding. Welding is a permanent connection method that can provide a very strong connection, ensuring that the partition plate 200 and the case will not loosen. The bend 250 can also be fixed to the inverter case 100 by bolting. This method allows the partition plate 200 to be removed and reinstalled when necessary, which facilitates maintenance and inspection. The bend 250 can strengthen the connection between the partition plate 200 and the inverter case 100 and improve the overall stability of the equipment. Since the partition plate 200 is connected to the inverter case 100 by the bend 250, the operator can perform installation operations more easily, simplifying the installation process.

[0036] Furthermore, a positioning post 120 is provided on the bottom surface of the inverter housing 100 to match the bent portion 250 .

[0037] The bottom surface of the inverter housing 100 is provided with positioning posts 120. These positioning posts 120 cooperate with the bend 250 to ensure that the partition plate 200 is accurately aligned during installation. The positioning posts 120 can be designed into a cylindrical, conical, or other shape to accommodate different installation requirements. The bend 250 is provided with positioning holes. These positioning holes cooperate with the positioning posts 120 on the bottom surface of the inverter housing 100 to ensure that the partition plate 200 is accurately aligned during installation. The positioning holes can be designed into a cylindrical, conical, or other shape to accommodate different installation requirements.

[0038] Furthermore, a mounting hole 130 is provided on the side surface of the inverter housing 100 to match the bent portion 250 .

[0039] The inverter housing 100 is provided with mounting holes 130 on its side. These mounting holes 130 match with the bent portion 250 . When in use, the mounting holes 130 and the bent portion 250 can be connected by fasteners.

[0040] In some embodiments, the connection portion 400 is provided with an exhaust hole 140 for exhausting air from the air outlet 230 .

[0041] Exhaust holes 140 are used to dissipate internal heat. The location of the vents depends on the enclosure's structure, heat dissipation requirements, and the installation environment. The shape and size of the vents 140 can be designed based on the heat dissipation requirements. Common shapes include circular, square, and rectangular, while the size depends on the enclosure's size and heat dissipation requirements.

[0042] Furthermore, the exhaust holes 140 are arranged in a honeycomb structure.

[0043] The exhaust holes 140 are arranged in a honeycomb structure, which provides more exhaust area and improves heat dissipation. The honeycomb structure also increases the airflow path, distributing heat more evenly. The honeycomb exhaust holes 140 typically have a regular shape and size, such as hexagonal or circular. This design ensures uniform airflow and avoids dead spots.

[0044] In some embodiments, the wiring portion 400 is provided with wiring holes 150. The number and position of the wiring holes 150 are determined according to the wiring requirements of the device.

[0045] The terms and words used in the above description and claims are not limited to their literal meanings, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the present invention is provided for illustration only and is not intended to limit the present invention as defined in the appended claims and their equivalents.

Claims

1. An externally connected solar inverter, characterized in that: include: An inverter box (100) is provided with a partition plate (200) in the inverter box (100), the partition plate (200) divides the inverter box (100) into an inverter assembly part (300) and a wiring part (400), the inverter assembly part (300) is provided with a solar inverter assembly (310), the wiring part (400) is provided with a wiring component (410), the wiring component (410) includes a wiring terminal (430) and a wiring copper bar (440), the inverter assembly part (300) is detachably connected to an operation panel (320), the wiring part (400) is detachably connected to a wiring panel (420), air inlets (110) are provided on both sides of the inverter box (100), and the partition plate (200) is provided with a wiring terminal slot (210), a wiring copper bar slot (220) and an air outlet (230).

2. The externally connected solar inverter according to claim 1, characterized in that: The wiring terminal slot (210) and the wiring copper bus slot (220) are staggered.

3. The externally connected solar inverter according to claim 2, characterized in that: The wiring copper busbar groove (220) is close to the bottom surface of the inverter box (100).

4. The externally connected solar inverter according to claim 2, characterized in that: The wiring terminal slot (210) is provided with a mounting seat (240) for fixing the wiring terminal (430).

5. The externally connected solar inverter according to any one of claims 1 to 4, characterized in that: The partition plate (200) is provided with a bent portion (250) fixed to the inverter box (100).

6. The externally connected solar inverter according to claim 5, characterized in that: The bottom surface of the inverter box (100) is provided with a positioning column (120) that matches the bending portion (250).

7. The externally connected solar inverter according to claim 6, characterized in that: A mounting hole (130) matching the bent portion (250) is provided on the side surface of the inverter housing (100).

8. The externally connected solar inverter according to any one of claims 1 to 4, characterized in that: The connection portion (400) is provided with an exhaust hole (140) for exhausting air from the air outlet (230).

9. The externally connected solar inverter according to claim 8, characterized in that: The exhaust holes (140) are arranged in a honeycomb structure.

10. An externally connected solar inverter according to any one of claims 1 to 4, characterized in that: The wiring portion (400) is provided with a wiring hole (150).

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