Balcony photovoltaic micro inverter

Abstract

The utility model relates to the technical field of micro inverters for balconies, in particular to a micro photovoltaic inverter for balconies, which comprises a protection box and a fixing assembly, an inverter body is fixedly arranged in the protection box, and the fixing assembly is arranged in the protection box. And the heat dissipation part is fixedly arranged on the outer wall of one side of the protection box, and the heat dissipation part is connected with the fixing assembly. According to the embodiment of the utility model, the inverter body is installed in the protection box and hung on the wall of the balcony, and the fixing assembly arranged in the protection box is located below the inverter body, so that the effect of clamping and fixing the cable entering the protection box can be realized, and the effect of standardizing and arranging the cable can be achieved. In addition, in the heat dissipation part installed outside the protection box, through the design of two conveying pipes, heat dissipation can be directly conducted on the interior of the protection box, the effect of directly conducting heat dissipation on the cable can be achieved through connection with a hollow fixing plate, and the safety of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of balcony micro-inverters, in particular to a balcony photovoltaic micro-inverter. Background Art

[0002] Micro inverters are generally used in small photovoltaic energy storage equipment, including balcony photovoltaic energy storage devices. In actual use, the inverter is suspended above the balcony wall and connected to the photovoltaic energy storage panel and other equipment structures through cables.

[0003] In actual use, the cables of the micro-inverter are hung on the wall in a suspended state. The existing micro-inverter lacks a structure to position and fix the cables, resulting in messy placement of the cables. In addition, in the process of converting light energy into electrical energy, the long-term uninterrupted output of energy by the cables will cause the temperature of the cables themselves to be too high, and short circuits are likely to occur in hot weather, affecting the safety performance of the equipment. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems in the prior art that the inverter cables are installed in a messy manner and the operating temperature is too high to affect the safety, thereby proposing a balcony photovoltaic micro inverter.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A balcony photovoltaic micro-inverter comprises a protection box, an inverter body is fixedly arranged inside the protection box, and further comprises:

[0007] A fixing component, which is arranged inside the protection box and below the inverter body, and is used to fix and clamp the cable;

[0008] The heat dissipation part is fixedly arranged on an outer wall of one side of the protection box, and the heat dissipation part is connected to the fixing component to realize heat dissipation for the cable.

[0009] In a feasible embodiment, the fixing assembly includes:

[0010] Two mounting frames, the two mounting frames are slidably disposed on the inner walls of both sides of the protection box respectively;

[0011] A fixing plate, the fixing plate is fixedly arranged between the two mounting frames, at least four No. 1 circular arc grooves are opened on the outer wall of one side of the fixing plate, a perforated mesh is embedded in the No. 1 circular arc groove, and a connecting pipe is fixedly arranged on the outer wall of the other side of the fixing plate;

[0012] A movable plate is slidably arranged between the two mounting frames, and at least four No. 2 circular arc grooves are opened on a side of the movable plate facing the fixed plate.

[0013] In a feasible embodiment, a screw rod is rotatably arranged at one end of the fixed plate located inside the mounting frame, and one end of the screw rod passes through the movable plate and is threadedly connected to the movable plate.

[0014] In a feasible embodiment, a clamping block is fixedly provided on the inner wall of the second circular arc groove, and a temperature sensor is embedded on one side of the clamping block.

[0015] In a feasible embodiment, the heat dissipation unit includes:

[0016] The fan is fixedly arranged on one side outer wall of the protection box, and the output end of the fan is fixedly connected to two delivery pipes, one end of the delivery pipe passes through the protection box, and a hose is fixedly arranged between one of the delivery pipes and the connecting pipe.

[0017] In a feasible embodiment, an electric push rod is fixedly provided on an inner wall of one side of the protection box, the electric push rod is located above the mounting frame, and one end of the electric push rod is fixedly connected to the mounting frame.

[0018] In a feasible embodiment, at least four cable grooves are formed at the bottom of the protection box, and rubber pads are fixedly provided on the inner walls of the cable grooves.

[0019] The beneficial effects of the utility model are:

[0020] In an embodiment of the utility model, the inverter body is installed inside a protection box and hung on the balcony wall, wherein the fixing assembly arranged inside the protection box is located below the inverter body, which can achieve the effect of clamping and fixing the cables entering the protection box, so as to achieve the effect of standardizing and organizing the cables.

[0021] In addition, the heat dissipation part installed on the outside of the protection box can not only directly dissipate heat inside the protection box through the design of two conveying pipes, but also can directly dissipate heat for the cables by connecting with the hollow fixing plate, thereby increasing the safety of the equipment;

[0022] Furthermore, the mounting frame in the fixed component can slide on the inner wall of the protective box. The cable can be monitored in real time by designing a temperature sensor, and an electric push rod can be installed to wirelessly connect to the temperature sensor. In this way, when the cable is at a high temperature, the mounting frame can be pushed down to pull the cable, so that the cable is separated from the inverter body, thereby ensuring the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1A schematic diagram of the overall structure of a balcony photovoltaic micro-inverter provided in an embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of the cutaway structure of the protection box;

[0025] Figure 3 It is a schematic diagram of the fixed component structure;

[0026] Figure 4 Schematic diagram of the partial structure of the movable plate.

[0027] The markings in the figure are as follows:

[0028] 1. Protection box; 2. Inverter body; 21. Cable trough; 22. Rubber pad;

[0029] 3. Fixing assembly; 31. Mounting frame; 32. Fixing plate; 321. No. 1 arc groove; 322. Perforated mesh; 323. Connecting pipe; 33. Movable plate; 331. No. 2 arc groove; 332. Tightening block; 333. Temperature sensor; 34. Screw rod;

[0030] 4. heat dissipation unit; 41. fan; 42. delivery pipe; 43. hose;

[0031] 5. Electric push rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0036] Embodiment 1

[0037] Reference Figures 1 to 4 In order to solve the above-mentioned technical problems of the disorderly installation of inverter cables and the high operating temperature affecting safety, the utility model provides a balcony photovoltaic micro-inverter, including: a protection box 1, an inverter body 2, a fixing component 3 and a heat dissipation part 4; the inverter body 2 is fixedly arranged inside the protection box 1 to protect the inverter body 2 through the protection box 1, wherein the protection box 1 is installed on the balcony wall. The fixing component 3 is arranged inside the protection box 1, and the fixing component 3 is located below the inverter body 2, so that the cables can be positioned and fixed by the design of the fixing component 3, thereby avoiding the phenomenon of messy cables. The heat dissipation part 4 is fixedly arranged on one side outer wall of the protection box 1, and the heat dissipation part 4 is connected to the fixing component 3, so that the heat dissipation of the fixed cables can be directly achieved by connecting with the fixing component 3.

[0038] For further information, please refer to Figures 2 to 4As shown, in this embodiment, the fixing assembly 3 includes: two mounting frames 31, a fixed plate 32 and a movable plate 33. The two mounting frames 31 are respectively slidably arranged on the inner walls of the two sides of the protection box 1, so as to adjust the distance between the two mounting frames 31 and the inverter body 2 through the sliding design to adapt to the plug specifications of different cables. The fixed plate 32 is fixedly arranged between the two mounting frames 31, and at least four No. 1 arc grooves 321 are opened on the outer wall of one side of the fixed plate 32, and the opening of the arc grooves provides a fixed space for the cables. The movable plate 33 is slidably arranged between the two mounting frames 31, and at least four No. 2 arc grooves 331 are opened on the side of the movable plate 33 facing the fixed plate 32, and the No. 2 arc grooves 331 correspond to the No. 1 arc grooves 321, so that when the movable plate 33 is docked with the fixed plate 32, the cable can be clamped between the No. 1 arc groove 321 and the No. 2 arc groove 331 to achieve positioning and fixing. It should be added that a screw rod 34 is rotatably provided at one end of the fixed plate 32 located inside the mounting frame 31, one end of the screw rod 34 passes through the movable plate 33 and is threadedly connected to the movable plate 33, wherein the design of the screw rod 34 can be realized by rotating the fixed plate 32, and the movable plate 33 can be driven to slide along the direction of the screw rod 34 inside the mounting frame 31 to approach and move away from the fixed plate 32, thereby controlling the separation of the movable plate 33 from the fixed plate 32 through the screw rod 34. In this embodiment, the cable passes between the fixed plate 32 and the movable plate 33 to be connected to the inverter body 2, wherein the movable plate 33 can be controlled to approach the fixed plate 32 and the cables inside the first arc groove 321 and the second arc groove 331 can be clamped and fixed by rotating the screw rod 34.

[0039] In a feasible embodiment, in order to effectively clamp the cables inside the first arc groove 321 and the second arc groove 331 , a clamping block 332 is fixedly provided on the inner wall of the second arc groove 331 .

[0040] Please refer to Figures 2 to 3 As shown, the heat dissipation unit 4 includes: a fan 41. The fan 41 is fixedly arranged on one side outer wall of the protection box 1, and the output end of the fan 41 is fixedly connected to two conveying pipes 42, and one end of the conveying pipe 42 passes through the protection box 1. To achieve heat dissipation by blowing wind through the fan 41 and the conveying pipe 42 to the inside of the protection box 1. It should be supplemented that the interior of the fixed plate 32 is hollow, and the first arc groove 321 is embedded with a perforated mesh 322, and the perforated mesh 322 is designed to promote the wind inside the fixed plate 32 to be transported to the cable through the perforations opened therein; a connecting pipe 323 is fixedly arranged on the outer wall of the other side of the fixed plate 32, and a hose 43 is fixedly arranged between one of the conveying pipes 42 and the connecting pipe 323, so as to achieve heat dissipation of the fixed cable by conveying wind inside the fan 41 and the fixed plate 32, thereby increasing the service life of the cable and increasing the safety performance of the equipment.

[0041] In a feasible embodiment, in order to facilitate guiding the cables into the protective box 1, at least four cable grooves 21 are opened at the bottom of the protective box 1, and rubber pads 22 are fixedly provided on the inner walls of the cable grooves 21. The rubber pads 22 are designed to protect the cables and avoid direct friction between the cables and the inner walls of the cable grooves 21.

[0042] Working principle:

[0043] In the utility model, the protection box 1 is installed on the balcony wall, and the inverter body 2 is arranged inside the protection box 1 and protected by the protection box 1. During the cable installation process, the cable can first pass through the cable groove 21 at the bottom of the protection box 1 to enter the protection box 1, and pass through between the fixed plate 32 and the movable plate 33 to be plugged with the inverter body 1. By twisting the screw rod 34, the movable plate 33 can be controlled to move on the mounting frame 31 and approach the fixed plate 32. After the cable is clamped between the first arc groove 321 and the second arc groove 331, the cable can be positioned and fixed;

[0044] In addition, when the inverter body 2 is in use, the starting fan 41 can deliver wind directly to the inside of the protective box 1 through one of the delivery pipes 42 for heat dissipation, while the other delivery pipe 42 can be connected to the hollow fixed plate 32 through the design of the hose 43, and directly blown to the cable through the perforated mesh 322 embedded in the first arc groove 321 for heat dissipation.

[0045] Embodiment 2

[0046] Please refer to Figure 2 and Figure 4 As shown, based on the first embodiment, in this embodiment, a temperature sensor 333 is embedded on one side of the clamping block 332, wherein the clamping block 332 can clamp and fix the cable when the fixed plate 32 and the movable plate 33 are in contact with each other, and at this time, the temperature sensor 333 can be in contact with the fixed cable, so as to monitor the temperature of the cable in real time.

[0047] Furthermore, an electric push rod 5 is fixedly provided on the inner wall of one side of the protection box 1. The electric push rod 5 is located above the mounting frame 31. One end of the electric push rod 5 is fixedly connected to the mounting frame 31. The design of the electric push rod 5 can push the mounting frame 31 and the cables between the fixed plate 32 and the movable plate 33 up and down, so as to facilitate the adjustment of the distance between the fixed component 3 and the inverter. It should be added that the electric push rod 5 is connected to the temperature sensor 333 via radio, so that when the temperature sensor 333 detects that the cable temperature is too high, the data is transmitted to the terminal and the electric push rod 5 is controlled to push the mounting frame 31 down to pull the cable and the inverter apart, thereby achieving the effect of protecting the equipment.

[0048] It should be added that in the above-mentioned first embodiment, the hose 43 installed in the connecting pipe 323 on one side of the fixing plate 32 can be pulled, so that heat dissipation wind can be continuously injected into the fixing plate 32 when the mounting frame 31 is raised and lowered.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A balcony photovoltaic micro-inverter, comprising a protection box (1), wherein an inverter body (2) is fixedly arranged inside the protection box (1), characterized in that: Also includes: A fixing component (3), the fixing component (3) being arranged inside the protection box (1), the fixing component (3) being located below the inverter body (2) and being used for fixing and clamping cables; A heat dissipation portion (4), the heat dissipation portion (4) being fixedly arranged on an outer wall of one side of the protection box (1), the heat dissipation portion (4) being connected to the fixing component (3) to achieve heat dissipation for the cable; The fixing component (3) comprises: Two mounting frames (31), the two mounting frames (31) being slidably disposed on inner walls on both sides of the protection box (1); A fixing plate (32), the fixing plate (32) being fixedly arranged between the two mounting frames (31), the outer wall of one side of the fixing plate (32) being provided with at least four first-number circular arc grooves (321), the first-number circular arc grooves being embedded with perforated meshes (322), and the outer wall of the other side of the fixing plate (32) being fixedly provided with a connecting pipe (323); A movable plate (33), the movable plate (33) being slidably disposed between the two mounting frames (31), and at least four No. 2 circular arc grooves (331) being formed on a side of the movable plate (33) facing the fixed plate (32).

2. A balcony photovoltaic micro-inverter according to claim 1, characterized in that A screw rod (34) is rotatably arranged at one end of the fixed plate (32) located inside the mounting frame (31); one end of the screw rod (34) penetrates through the movable plate (33) and is threadedly connected to the movable plate (33).

3. A balcony photovoltaic micro-inverter according to claim 2, characterized in that: A tightening block (332) is fixedly disposed on the inner wall of the second circular arc groove (331), and a temperature sensor (333) is embedded on one side of the tightening block (332).

4. The balcony photovoltaic micro-inverter according to claim 1 is characterized in that The heat dissipation unit (4) comprises: A fan (41), the fan (41) being fixedly arranged on an outer wall of one side of the protection box (1), the output end of the fan (41) being fixedly connected to two delivery pipes (42), one end of the delivery pipe (42) passing through the protection box (1), and a hose (43) being fixedly arranged between one of the delivery pipes (42) and the connecting pipe (323).

5. The balcony photovoltaic micro-inverter according to claim 3, characterized in that: An electric push rod (5) is fixedly provided on an inner wall of one side of the protection box (1); the electric push rod (5) is located above the mounting frame (31); one end of the electric push rod (5) is fixedly connected to the mounting frame (31).

6. The balcony photovoltaic micro-inverter according to claim 1, characterized in that: At least four cable grooves (21) are provided at the bottom of the protection box (1), and rubber pads (22) are fixedly provided on the inner walls of the cable grooves (21).

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