CN218976552U

CN218976552U - Photovoltaic inverter box

Info

Publication number: CN218976552U
Application number: CN202223339286.5U
Authority: CN
Inventors: 李红斌
Original assignee: Goodwe Power Supply Technology Guangde Co Ltd
Current assignee: Goodwe Power Supply Technology Guangde Co Ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-05
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses a photovoltaic inverter box body, which comprises a box body and a cover plate arranged on the box body, wherein a radiator and a handle are formed on the bottom surface of the box body, at least one handle is arranged on the bottom surface of the box body, the radiator is provided with a plurality of radiating fins, each handle comprises a plurality of shells, the interiors of the shells are communicated with the interiors of the box body, and when one shell is arranged, openings are formed between the two end parts of the shells; when a plurality of shells are arranged on the same handle, gaps are formed between two adjacent shells at intervals. The utility model not only improves the internal volume of the box body and ensures that the heat capacity of the internal gas is large, but also ensures that the temperature rise of the internal gas is small; meanwhile, the contact area between the heat dissipation box body and the internal gas is increased, namely the heat dissipation area is increased.

Description

Photovoltaic inverter box

Technical Field

The utility model belongs to the field of photovoltaic equipment, and particularly relates to a photovoltaic inverter box body.

Background

Because of the noise problem of the fan, the household photovoltaic inverter generally adopts a natural heat dissipation mode. For a household inverter adopting a die-casting integrated shell with natural heat dissipation, the cavity temperature is higher. This is because natural convective heat dissipation limits the amount of heat dissipated by the heat sink into the air, and the heat from the transistor is more easily transferred to the tank by metal conduction.

The simulation shows that the average temperature of the four walls of the box body is only 2-3 ℃ lower than that of the radiator, the average temperature of the upper wall of the box body in the test is 82 ℃, and the working ring temperature of the bus capacitor in the cavity is required to be lower than 85 ℃. When the wall temperature of the box body is increased, the cavity temperature is increased, so that the temperature reliability of internal components is seriously affected. The problem of cavity temperature has been a troublesome problem for consumer machines.

Disclosure of Invention

The utility model aims to provide a photovoltaic inverter box body with high heat capacity, slow temperature rise and fast heat dissipation.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a photovoltaic inverter box, its include the case body with install in apron on the case body, be formed with radiator and handle on the bottom surface of case body, at least one has the handle, the radiator has a plurality of fin, its characterized in that: each handle comprises a plurality of shells, the interiors of the shells are communicated with the interiors of the box bodies, and when one shell exists, a gap is formed between the two end parts of each shell; when a plurality of shells are arranged on the same handle, gaps are formed between two adjacent shells at intervals.

Preferably, the arrangement direction of the radiating fins is parallel or perpendicular to the arrangement direction of the shell.

Preferably, the box body is internally recessed to one side provided with the radiating fins to form a groove, and the groove is used for placing the inductor box.

Preferably, the shell is integrally formed with the box body, and the inside of the shell is communicated with the inside of the box body.

Preferably, when the shell is provided with one shell, the height between the top of the notch and the top of the outer side surface of the box body is 1/3-2/3 of the height between the bottoms of the two end parts of the shell and the top of the outer side surface of the box body.

Optimally, the length of the notch is not less than 9cm.

Preferably, the handles are positioned on the left side and the right side of the radiator.

Preferably, the height of the shell exceeds the height of the cooling fins by 4-7cm.

Preferably, the plurality of inductance boxes are arranged in parallel along the length direction of the radiating fin, and the distance between each inductance box and the handle positioned on the same side of the inductance box is smaller than the distance between two adjacent inductance boxes.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the utility model not only improves the internal volume of the box body and ensures that the heat capacity of the internal gas is large, but also ensures that the temperature rise of the internal gas is small; meanwhile, the contact area between the heat dissipation box body and the internal gas is increased, namely the heat dissipation area is increased.

Drawings

Fig. 1 is a perspective view of a photovoltaic inverter case according to a first embodiment;

fig. 2 is a perspective view of a photovoltaic inverter case according to the first embodiment;

fig. 3 is a perspective view of the photovoltaic inverter case of the first embodiment with the cover plate removed;

fig. 4 is a bottom view of a photovoltaic inverter case according to the first embodiment;

fig. 5 is a perspective view of the photovoltaic inverter case of the second embodiment with the cover plate removed;

fig. 6 is a perspective view of the photovoltaic inverter case of the second embodiment with the cover plate removed;

fig. 7 is a perspective view of the photovoltaic inverter case of the second embodiment with the cover plate removed;

fig. 8 is a bottom view of a photovoltaic inverter case according to the second embodiment;

FIG. 9 is a diagram showing the temperature detection of the original case when in operation;

fig. 10 is a diagram showing a temperature detection of the case in operation in the first embodiment.

Detailed Description

The utility model will be further described with reference to examples of embodiments shown in the drawings.

Example 1

As shown in fig. 1 to 4, the photovoltaic inverter box body includes a box body 1 and a cover plate 2 mounted on the box body 1, a radiator 3 and handles 4 are formed on the bottom surface of the box body 1, the radiator 3 has a plurality of radiating fins 31, the handles 4 are 2 and are located on the left and right sides of all the radiator 3, each handle 4 includes a plurality of housings 41 whose inner parts are communicated with the inner part of the box body 1, and in this embodiment, when the number of housings 41 of the same handle 4 is 2, gaps 42 are formed between the two housings 41.

The direction of the heat sink 3 is parallel or perpendicular to the direction of the housing 41. The inside of the case body 1 is recessed to one side provided with the radiating fins to form a groove, and the groove is used for placing an inductance box 5 of the inductance. The housing 41 is integrally formed with the tank body 1, and the interior of the housing 41 communicates with the interior of the tank body 1. The height of the top of the opening 42 from the top of the outer side surface of the box body 1 is 1/3-2/3 of the height of the bottoms of the two end parts of the shell 41 from the top of the outer side surface of the box body 1, and the length of the opening 42 is not less than 9cm. The height of the housing 41 exceeds the height of the box body 1 by 4-7cm. The inductance boxes 5 are arranged in parallel along the length direction of the radiating fin 31, and the distance between each inductance box 5 and the handle 4 positioned on the same side of the inductance box is smaller than the distance between two adjacent inductance boxes 5. In this embodiment, by setting the handle, the handle is of a cavity structure, which is convenient for carrying, and can increase the volume of the handle cavity, and is more beneficial to heat exchange between the hot air in the handle cavity and the peripheral wall surface of the box body, as shown in fig. 9, the bus temperature in the original box body is 98.1078 ℃, as shown in fig. 10, while the bus temperature in the box body is 96.7486 ℃, and the highest temperature of the bus capacitor in the box body 1 can be reduced by about 1.4 ℃.

Example two

As shown in fig. 5 to 8, the photovoltaic inverter box body comprises a box body 1 and a cover plate 2 mounted on the box body 1, wherein a radiator 3 and handles 4 are formed on the bottom surface of the

box body

1, 2 handles 4 are arranged on the left side and the right side of all the radiators 3, each handle 4 comprises a plurality of shells 41 with the interiors communicated with the interiors of the box body 1, in the embodiment, the shells 41 are integrated, and a notch 42 is formed between the two end parts of each shell 41.

The direction of the heat sink 3 is parallel or perpendicular to the direction of the housing 41. The inside of the case body 1 is recessed to one side provided with the radiating fins to form a groove for placing the inductance box 5. The housing 41 is integrally formed with the tank body 1, and the interior of the housing 41 communicates with the interior of the tank body 1. The height of the top of the opening 42 from the top of the outer side surface of the box body 1 is 1/3-2/3 of the height of the bottoms of the two end parts of the shell 41 from the top of the outer side surface of the box body 1, and the length of the opening 42 is not less than 9cm. The height of the housing 41 exceeds the height of the box body 1 by 4-7cm. The inductance boxes 5 are arranged in parallel along the length direction of the radiating fin 31, and the distance between each inductance box 5 and the handle 4 positioned on the same side of the inductance box is smaller than the distance between two adjacent inductance boxes 5. In this embodiment, through setting up the handle, the handle is cavity structure, not only convenient transport, can also increase the volume of handle cavity, more is favorable to the hot air in the handle cavity to carry out heat exchange with the wall all around of case body.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims

1. The utility model provides a photovoltaic inverter box, its include the case body with install in apron on the case body, be formed with radiator and handle on the bottom surface of case body, at least one has the handle, the radiator has a plurality of fin, its characterized in that: each handle comprises a plurality of shells, the interiors of the shells are communicated with the interiors of the box bodies, and when one shell exists, a gap is formed between the two end parts of each shell; when a plurality of shells are arranged on the same handle, gaps are formed between two adjacent shells at intervals.

2. The photovoltaic inverter case of claim 1 wherein: the arrangement direction of the radiating fins is parallel or perpendicular to the arrangement direction of the shell.

3. The photovoltaic inverter case of claim 1 wherein: the box body is inwards sunken to be equipped with the one side of fin and forms the recess, the recess is used for placing the inductance box.

4. The photovoltaic inverter case of claim 1 wherein: the shell body and the box body are integrally formed, and the inside of the shell body is communicated with the inside of the box body.

5. The photovoltaic inverter case of claim 1 wherein: when the shell is provided with one shell, the height between the top of the notch and the top of the outer side face of the box body is 1/3-2/3 of the height between the bottoms of the two end parts of the shell and the top of the outer side face of the box body.

6. The photovoltaic inverter case of claim 1 wherein: the length of the notch is not less than 9cm.

7. The photovoltaic inverter case of claim 1 wherein: the handles are positioned on the left side and the right side of the radiator.

8. The photovoltaic inverter case of claim 1 wherein: the height of the shell exceeds the height of the radiating fins by 4-7cm.

9. A photovoltaic inverter case according to claim 3, wherein: the inductance boxes are arranged in parallel along the length direction of the radiating fins, and the distance between each inductance box and the handle positioned on the same side of the inductance box is smaller than the distance between two adjacent inductance boxes.