CN220140002U

CN220140002U - Photovoltaic off-grid inverter

Info

Publication number: CN220140002U
Application number: CN202320869095.5U
Authority: CN
Inventors: 王文成; 韩恒; 高丽
Original assignee: Shenzhen Sino Hoau Co ltd
Current assignee: Shenzhen Sino Hoau Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-12-05
Anticipated expiration: 2033-04-11

Abstract

The utility model relates to the technical field of photovoltaic equipment and discloses a photovoltaic off-grid inverter which comprises an inverter body and a supporting piece, wherein the supporting piece is arranged on the inverter body, the inverter body is suspended away from a wall surface through the supporting piece, hollow radiating fins are integrally formed on the back surface of a shell of the inverter body, an inner cavity of each radiating fin is communicated with an inner cavity of the shell, and a plurality of uniformly distributed radiating holes are formed in the side wall of each radiating fin. The beneficial effects of the utility model are as follows: the back of the shell is separated from the wall body through the supporting piece to form an air circulation channel, so that heat dissipation of the back of the shell is facilitated, and meanwhile, the heat dissipation area of the back of the shell is increased, and the heat dissipation effect is enhanced.

Description

Photovoltaic off-grid inverter

Technical Field

The utility model relates to the technical field of photovoltaic equipment, in particular to a photovoltaic off-grid inverter.

Background

The photovoltaic inverter is an inverter capable of converting variable direct current voltage generated by the photovoltaic solar panel into alternating current with mains frequency, and can be fed back to a commercial power transmission system or used for an off-grid power grid.

The photovoltaic inverter can generate a large amount of heat in the working process, so that the temperature of the inner cavity of the shell is higher and higher, the electronic components in the photovoltaic inverter have rated working temperature, and the performance and the service life of the electronic components can be reduced due to the overhigh temperature, so that a heat dissipation structure is required to be designed, and the heat in the photovoltaic inverter is transferred out; according to different powers of the photovoltaic inverter, the photovoltaic inverter can be divided into a high-power photovoltaic inverter, a medium-power photovoltaic inverter and a low-power photovoltaic inverter, wherein the low-power photovoltaic inverter is a key part of a household independent alternating current system, the low-power photovoltaic inverter needs to be hung for use, the inverter is generally fixed on a wall-hung backboard, then the wall-hung backboard is fixed on a wall, a cooling fan is installed in the photovoltaic inverter in the existing low-power photovoltaic inverter, a cooling hole is formed in a shell of the low-power photovoltaic inverter, heat energy generated in the device is transmitted through the cooling hole, such as the photovoltaic inverter is disclosed in Chinese patent (patent publication number: CN204733085U name), but when the photovoltaic inverter is used, the back of the low-power photovoltaic inverter is clung to a wall surface, the temperature of the low-power photovoltaic inverter is increased after the wall absorbs heat, so that heat exchange of the inverter from the back is reduced, and the whole cooling effect is reduced.

Disclosure of Invention

The utility model aims to provide a photovoltaic off-grid inverter so as to overcome the defects of the prior art.

The aim of the utility model is achieved by the following technical scheme: the utility model provides a photovoltaic is from net dc-to-ac converter, includes dc-to-ac converter body and support piece, the support piece is installed on the dc-to-ac converter body, the dc-to-ac converter body passes through the support piece is kept away from the wall and hangs, integrated into one piece has hollow radiating fin on the back of the casing of dc-to-ac converter body, radiating fin's inner chamber with the inner chamber intercommunication of casing, a plurality of equipartitions's louvres have been seted up on radiating fin's the lateral wall.

Preferably, the support member comprises an L-shaped steel plate and plate-shaped lifting lugs, the steel plate is detachably mounted on the wall surface, the inner corners of the L-shaped steel plate face away from the ground, the lifting lugs are a pair of, the lifting lugs are respectively fixed on two sides of the steel plate, the inverter body is suspended in the air through the lifting lugs, and the radiating fins face the wall surface.

Preferably, a pair of baffles is integrally formed on the housing, the heat dissipation fins are located between the pair of baffles, the heat dissipation fins are perpendicular to the ground, and the heat dissipation fins are parallel to the baffles.

Preferably, a notch is formed in the lifting lug, the notch and the lug hole of the lifting lug are distributed in the vertical direction, the notch is 7-shaped, the inner angle of the 7-shaped faces the ground, a hanging rod is integrally formed in the shell, and the hanging rod is clamped into the notch.

Preferably, a bolt is inserted into the lug hole of the lifting lug, a threaded hole corresponding to the bolt is formed in the shell, and the bolt is screwed into the threaded hole.

Preferably, the joint surface of the steel plate and the wall body is provided with an oblong through hole, an expansion screw corresponding to the oblong through hole is installed in the wall body, and the expansion screw penetrates through the oblong through hole to be embedded into the wall body.

Preferably, the heat dissipation fins are a plurality of and uniformly distributed on the shell.

Compared with the prior art, the utility model has the beneficial effects that:

the back of the shell is separated from the wall body through the supporting piece to form an air circulation channel, so that heat dissipation of the back of the shell is facilitated, and meanwhile, the heat dissipation area of the back of the shell is increased, and the heat dissipation effect is enhanced.

Drawings

FIG. 1 is a schematic view of a mounting structure of the present utility model;

FIG. 2 is a second schematic view of the mounting structure of the present utility model;

FIG. 3 is an enlarged partial schematic view of FIG. 2A;

in the figure, the inverter comprises a 1-inverter body, 2-radiating fins, 3-radiating holes, 4-steel plates, 5-lifting lugs, 6-baffle plates, 7-bolts, 8-oblong through holes, 9-notches, 10-hanging rods and 11-wall bodies.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-3, a photovoltaic off-grid inverter comprises an inverter body 1 and a supporting piece, wherein the supporting piece is installed on the inverter body 1, the inverter body 1 is hung away from a wall surface through the supporting piece, hollow radiating fins 2 are integrally formed on the back surface of a shell of the inverter body 1, the radiating fins 2 are a plurality of radiating holes 3 uniformly distributed on the shell, an inner cavity of each radiating fin 2 is communicated with an inner cavity of the shell, a plurality of radiating holes 3 uniformly distributed are formed in the side wall of each radiating fin 2, the back surface of the shell is separated from a wall body 11 through the supporting piece, an air circulation channel is formed, heat dissipation of the back surface of the shell is facilitated, and meanwhile, the radiating area of the back surface of the shell is increased, and the radiating effect is enhanced.

In this embodiment, as shown in fig. 2, the supporting member includes an L-shaped steel plate 4 and a plate-shaped lifting lug 5, an oblong through hole 8 is formed in the joint surface of the steel plate 4 and the wall 11, an expansion screw (shown in the figure) corresponding to the oblong through hole 8 is installed in the wall 11, the expansion screw penetrates through the oblong through hole 8 to be embedded into the wall 11, the inner angle of the steel plate 4L-shaped is opposite to the ground, the lifting lugs 5 are a pair, the pair of lifting lugs 5 are respectively fixed on two sides of the steel plate 4, the inverter body 1 is suspended in the air through the lifting lugs 5, the radiating fins 2 face the wall surface, the suspended shell is located below the steel plate 4, and can shield the inverter installed on the outdoor wall 11 from rainwater, so that the risk that the internal devices are burnt down due to the rainwater entering the shell is reduced.

In this embodiment, as shown in fig. 1, a pair of baffles 6 are integrally formed on the housing, the heat dissipation fins 2 are located between the pair of baffles 6, the heat dissipation fins 2 are perpendicular to the ground, and the heat dissipation fins 2 are parallel to the baffles 6, so that wind is prevented from blowing rainwater into the heat dissipation fins 2 from the side surface through the blocking of the baffles 6, and therefore, the rainwater flows into the housing, and devices inside the housing are burnt.

In this embodiment, as shown in fig. 2 and 3, the lug 5 is provided with a notch 9, the notch 9 and the lug hole of the lug 5 are distributed along the vertical direction, the notch 9 is 7-shaped, the inner angle of the 7-shaped faces the ground, the shell is integrally formed with a hanging rod 10, the hanging rod 10 is clamped into the notch 9, the disassembly and the assembly are quick and convenient, and the disassembly and assembly efficiency is improved.

In this embodiment, as shown in fig. 3, the bolt 7 is inserted into the ear hole of the lifting lug 5, the shell is provided with a threaded hole corresponding to the bolt 7, the bolt 7 is screwed into the threaded hole, the shell is fixed on the steel plate 4 by screwing in the bolt 7, and the situation that the high wind shakes and causes damage to the inverter body 1 due to falling is avoided.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a photovoltaic off-grid dc-to-ac converter, includes dc-to-ac converter body (1) and support piece, support piece installs on dc-to-ac converter body (1), its characterized in that: the inverter body (1) is hung away from the wall surface through the supporting piece, hollow radiating fins (2) are integrally formed on the back surface of the shell of the inverter body (1), the inner cavity of each radiating fin (2) is communicated with the inner cavity of the shell, and a plurality of radiating holes (3) which are uniformly distributed are formed in the side wall of each radiating fin (2).

2. The photovoltaic off-grid inverter of claim 1, wherein: the support piece comprises an L-shaped steel plate (4) and a platy lifting lug (5), the steel plate (4) is detachably arranged on a wall surface, the inner corners of the L-shaped steel plate are opposite to the ground, the lifting lugs (5) are a pair, the lifting lugs (5) are respectively fixedly arranged on two sides of the steel plate (4), the inverter body (1) is suspended in the air through the lifting lugs (5), and the radiating fins (2) face the wall surface.

3. A photovoltaic off-grid inverter according to claim 2, characterized in that: a pair of baffles (6) are integrally formed on the shell, the radiating fins (2) are located between the pair of baffles (6), the radiating fins (2) are perpendicular to the ground, and the radiating fins (2) are parallel to the baffles (6).

4. A photovoltaic off-grid inverter according to claim 2, characterized in that: the lifting lug (5) is provided with a notch (9), the notch (9) and the lug hole of the lifting lug are distributed along the vertical direction, the notch (9) is 7-shaped, the inner angle of the 7-shaped faces the ground, the shell is integrally formed with a hanging rod (10), and the hanging rod (10) is clamped into the notch (9).

5. A photovoltaic off-grid inverter according to claim 2 or 4, characterized in that: the lug (5) is inserted with a bolt (7) in the lug hole, the shell is provided with a threaded hole corresponding to the bolt (7), and the bolt (7) is screwed into the threaded hole.

6. A photovoltaic off-grid inverter according to claim 2, characterized in that: the steel plate (4) is provided with an oblong through hole (8) on the joint surface of the steel plate and the wall body, an expansion screw corresponding to the oblong through hole (8) is installed in the wall body, and the expansion screw penetrates through the oblong through hole (8) to be embedded into the wall body.

7. A photovoltaic off-grid inverter according to claim 3, characterized in that: the heat dissipation fins (2) are distributed on the shell uniformly.