CN218335728U

CN218335728U - Power electronic converter with variable air duct

Info

Publication number: CN218335728U
Application number: CN202222302236.3U
Authority: CN
Inventors: 戴维; 夏青
Original assignee: Shanghai Livesine Electric Co ltd
Current assignee: Shanghai Livesine Electric Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-01-17
Anticipated expiration: 2032-08-31

Abstract

The utility model relates to a power electronic converter in variable wind channel, including the casing, locate the main circuit board in the casing, the cuboid form that is of casing, including last bottom surface, lower bottom surface and four sides, its characterized in that all is provided with air intake and air outlet on four sides of casing, and all air intakes are near bottom surface down and arrange, and all air outlets are near to go up the bottom surface and arrange, still are equipped with the wind channel in the casing and locate the fan in the wind channel, and the input in wind channel is connected to each air intake respectively, and the output is connected to each air outlet respectively. Compared with the prior art, the utility model discloses an all set up air intake and air outlet on four sides to can utilize means such as the subsides of keeping out the wind to block partial wind gap, so, be provided with the air intake that keeps out the wind and paste promptly for the air intake of in-service use, on the same principle, the air outlet is also so, consequently, can realize variable wind channel design.

Description

Power electronic converter with variable air duct

Technical Field

The utility model belongs to the technical field of electronic converter's wind channel design and specifically relates to a power electronic converter in variable wind channel is related to.

Background

The power electronic converter uses the power electronic switch, needs heat dissipation in the operation process, commonly adopts a forced air cooling heat dissipation technology, and is widely applied due to high cost performance. In the case of using the air duct which is generally used for heat dissipation for many reasons, as shown in fig. 1 to 3, the direction of the air duct is fixed after the design is finished, and generally if the direction of the air duct needs to be adjusted, the heat dissipation component or module needs to be replaced by the installation position and direction, and the design has no great problem in certain applications. But there are many limitations and lack of flexibility in the integration application.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a power electronic converter in variable wind channel is through all setting up air intake and air outlet on four sides to can utilize means such as the subsides of keeping out the wind to block partial wind gap, so, the air intake that is the air intake of in-service use that is not provided with the subsides of keeping out the wind, and on the same hand, the air outlet is also so, consequently, can realize variable wind channel design.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a power electronic converter in variable wind channel, includes the casing, locates the main circuit board in the casing, the casing is the cuboid form, including last bottom surface, lower bottom surface and four sides, its characterized in that, all be provided with air intake and air outlet on four sides of casing, and all air intakes are arranged near bottom surface down, and all air outlets are arranged near last bottom surface, still be equipped with the wind channel in the casing and locate the fan in the wind channel, the input in wind channel is connected to each air intake respectively, and the output is connected to each air outlet respectively.

At least one air outlet upper paste is equipped with the subsides of keeping out the wind, and at least one air intake upper paste is equipped with the subsides of keeping out the wind.

The air duct comprises an air duct main road, four air inlet branch roads and four air outlet branch roads, wherein the input ends of the four air inlet branch roads are respectively connected to the four air inlets, the output ends of the four air inlet branch roads are connected to the input end of the air duct main road, the input ends of the four air outlet branch roads are connected to the output end of the air duct main road, the output ends of the four air outlet branch roads are respectively connected to the four air outlets, the number of the fans is four, the fans are respectively arranged on the four air outlet branch roads, and the wind shielding paste is pasted on at least one air inlet.

The axial direction of the air duct main path is perpendicular to the upper bottom surface.

The axis of the air inlet branch is parallel to the upper bottom surface.

The air outlet branch is arranged in parallel with the upper bottom surface.

The air inlet is a grid type air inlet.

The air outlet is a grid type air outlet.

The distance between the air inlet and the air outlet is at least 1.5 times of the sum of the widths of the air inlet and the air outlet.

The distance between the air inlet and the air outlet is at least 2 times of the sum of the widths of the air inlet and the air outlet.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the air inlets and the air outlets are arranged on the four side surfaces, so that partial air outlets can be blocked by means of wind shielding stickers and the like, the air inlets without the wind shielding stickers are the air inlets which are actually used, and the same is true for the air outlets, so that the design of the variable air duct can be realized.

2. The wind shielding paste is adopted to realize blocking, and is simple, rapid and practical.

3. Adopt four fans to realize, so, only need keep out the wind to the air intake use subsides of keeping out the wind, stability is better.

4. And the grid type air opening is adopted, so that the dust can be reduced.

5. The distance between the air inlet and the air outlet is at least 1.5 times of the sum of the widths of the air inlet and the air outlet, so that the interference of an air field for air inlet and air outlet can be avoided.

Drawings

Fig. 1 is a schematic view of a conventional power electronic converter air duct design;

fig. 2 is a schematic view of air outlet of an air duct of a conventional power electronic converter;

FIG. 3 is a schematic diagram of the air inlet of a conventional power electronic converter;

fig. 4 is a schematic view of the seal arrangement of the power electronic converter of the present invention;

FIG. 5 is a schematic view of a fan arrangement in one embodiment;

FIG. 6 is a schematic view of a fan arrangement in another embodiment;

wherein: 1. casing, 2, wind channel, 3, fan, 11, air intake, 12, air outlet, 21, wind channel trunk road, 22, air-out branch road.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

A power electronic converter with a variable air duct 22 is disclosed in fig. 4, and comprises a casing 1 and a main circuit board arranged in the casing 1, wherein the casing 1 is cuboid and comprises an upper bottom surface, a lower bottom surface and four side surfaces, and is characterized in that the four side surfaces of the casing 1 are respectively provided with an air inlet 11 and an air outlet 12, all the air inlets 11 are arranged near the lower bottom surface, all the air outlets 12 are arranged near the upper bottom surface, the casing 1 is also internally provided with the air duct 22 and a fan 3 arranged in the air duct 22, the input end of the air duct 22 is respectively connected to each air inlet 11, and the output end of the air duct 22 is respectively connected to each air outlet 12.

The air inlets 11 and the air outlets 12 are arranged on the four side surfaces, so that partial air outlets can be blocked by means of wind shielding stickers and the like, the air inlets 11 without the wind shielding stickers are the air inlets 11 which are actually used, and the air outlets 12 are the same, so that the design of the variable air duct 22 can be realized.

The middle of the module is a heat dissipation air duct 22 which penetrates through the upper part and the lower part, the upper part of the air duct 22 is provided with a centrifugal fan 3 for air draft and heat dissipation, and the lower part of the module is reserved with air inlets 11 which can intake air all around. The upper centrifugal wind draft can exhaust from four sides or any side of the horizontal direction. Air is introduced around the lower part or on any surface. Therefore, the direction of the air inlet and outlet channel can be switched according to the use environment, part of the surface is blocked, and the surface needing air inlet and outlet is opened, so that the normal heat dissipation of the module can be realized. The application range of the module is greatly improved.

In one embodiment, as shown in fig. 5, the air duct 22 includes an air duct main line 21, four air inlet branch lines and four air outlet branch lines 22, wherein input ends of the four air inlet branch lines are respectively connected to the four air inlets 11, output ends of the four air inlet branch lines are all connected to an input end of the air duct main line 21, input ends of the four air outlet branch lines 22 are all connected to an output end of the air duct main line 21, output ends of the four air outlet branch lines are respectively connected to the four air outlets 12, one fan 3 is provided and located in the air duct main line 21, at this time, a wind shielding sticker is attached to at least one air outlet 12, and a wind shielding sticker is attached to at least one air inlet 11. The wind shielding paste is adopted to realize blocking, and is simple, rapid and practical.

Certainly, in other embodiments, other designs may also be adopted, for example, in another embodiment, as shown in fig. 6, the air duct 22 includes an air duct main line 21, four air inlet branches and four air outlet branches 22, wherein input ends of the four air inlet branches are respectively connected to the four air inlets 11, output ends of the four air inlet branches are all connected to an input end of the air duct main line 21, input ends of the four air outlet branches 22 are all connected to an output end of the air duct main line 21, output ends of the four air outlet branches are respectively connected to the four air outlets 12, the number of the fans 3 is four, the fans are respectively disposed on the four air outlet branches 22, and a wind blocking sticker is attached to at least one air inlet 11. Adopt four fans 3 to realize, so, only need keep out the wind to 11 uses of air intake and paste, stability is better. Of course, in this embodiment, a check valve should be disposed on the air outlet branch 22.

In some embodiments, the air duct trunk 21 is disposed axially perpendicular to the upper bottom surface, and may be formed by a plurality of bent pipes, so as to improve the heat exchange efficiency with the internal cavity of the casing 1.

In some embodiments, the axis of the air inlet branch is parallel to the upper bottom surface, and the air outlet branch 22 is parallel to the upper bottom surface.

In most embodiments, the air inlet 11 is a grid type air inlet, and similarly, the air outlet 12 is a grid type air inlet, which can reduce the entrance of dust.

In some embodiments, the distance between the inlet opening 11 and the outlet opening 12 is at least 1.5 times the sum of the widths of the inlet opening 11 and the outlet opening 12. In this embodiment, the distance between the air inlet 11 and the air outlet 12 is 2 times the sum of the widths of the air inlet 11 and the air outlet 12, so that interference between the air inlet and the air outlet in the wind field can be avoided.

The focus of the present application is on the improvement of the arrangement of the air duct 22 and the sealing, wherein the main circuit board can be the one in the prior art, and the detailed description is omitted to avoid obscuring the purpose of the present application.

Claims

1. The utility model provides a power electronic converter in variable wind channel, includes the casing, locates the main circuit board in the casing, the casing be the cuboid form, including last bottom surface, lower bottom surface and four sides, its characterized in that, all be provided with air intake and air outlet on four sides of casing, and all air intakes are near bottom surface down and arrange, and all air outlets are near going up the bottom surface and arranging, still be equipped with the wind channel in the casing and locate the fan in the wind channel, the input in wind channel is connected to each air intake respectively, and the output is connected to each air outlet respectively.

2. The variable air duct power electronic converter according to claim 1, wherein a wind shielding sticker is attached to at least one air outlet, and a wind shielding sticker is attached to at least one air inlet.

3. The variable duct power electronic converter according to claim 1, wherein the duct includes a duct trunk, four air inlet branches and four air outlet branches, wherein the four air inlet branches have input ends respectively connected to four air inlets, output ends respectively connected to the input ends of the duct trunk, input ends of the four air outlet branches are respectively connected to the output ends of the duct trunk, output ends respectively connected to four air outlets, four fans are respectively disposed on the four air outlet branches, and a wind shielding patch is attached to at least one air inlet.

4. The variable air duct power electronic converter according to claim 3, wherein the axial direction of the air duct trunk is perpendicular to the upper bottom surface.

5. The variable air duct power electronic converter according to claim 3, wherein an axis of the air inlet branch is parallel to the upper bottom surface.

6. The variable air duct power electronic converter according to claim 3, wherein the air outlet branch is arranged in parallel with the upper bottom surface.

7. The variable air duct power electronic converter according to claim 1, wherein the air inlet is a grid type air inlet.

8. The variable air duct power electronic converter as claimed in claim 1, wherein the air outlet is a grid type air outlet.

9. The variable duct power electronic converter according to claim 1, wherein the distance between the inlet and the outlet is at least 1.5 times the sum of the widths of the inlet and the outlet.

10. The variable duct power electronic converter according to claim 9, wherein the distance between the inlet and the outlet is at least 2 times the sum of the widths of the inlet and the outlet.