CN217984838U - Three-temperature-zone isolated frequency converter - Google Patents
Three-temperature-zone isolated frequency converter Download PDFInfo
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- CN217984838U CN217984838U CN202221823579.8U CN202221823579U CN217984838U CN 217984838 U CN217984838 U CN 217984838U CN 202221823579 U CN202221823579 U CN 202221823579U CN 217984838 U CN217984838 U CN 217984838U
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Abstract
The utility model discloses a three-temperature-zone isolated frequency converter, which comprises a frequency converter, wherein a fan and a cold air inlet are arranged at the bottom in the frequency converter, a hot air outlet is arranged at the top in the frequency converter, and an air circulation channel is formed from the cold air inlet to the hot air outlet in the frequency converter; the area of the top of the frequency converter close to the hot air outlet is a high-temperature area, and a medium-temperature area and a low-temperature area are respectively arranged along two sides of the air circulation channel. The utility model discloses a reasonable thermal design has improved the inside temperature environment of converter.
Description
Technical Field
The utility model relates to a converter technical field, concretely relates to three warm areas isolated converter.
Background
At present, the mainstream frequency converter structure on the market is basically designed into an independent air channel, namely all control components and heat dissipation components are isolated. However, some devices in the control component generate a small amount of heat (for example, only when current flows through the rectifier, some heat is generated), and some devices generate a large amount of heat (for example, an IGBT module, because the switching frequency is high, when a large current flows through the IGBT module, a large amount of heat energy is generated and is a main heat source of the frequency converter), and if the devices are all uniformly placed in a box, the heat dissipation design is performed according to the uniform standard, so that the heat dissipation efficiency is low, and the heat dissipation effect is poor.
As shown in fig. 1, a rectifier and an IGBT module 1 are placed on the same surface of a radiator 1 of a mainstream frequency converter to form integral heat dissipation, meanwhile, the integral heat dissipation is connected with a low-temperature-region air duct 2, a fan with the same air volume is used for extracting heat inside a product, the whole cabinet is divided into a middle-temperature region and a low-temperature region, so that the heat of the IGBT per se can be conducted to the rectifier, the industry knows that electronic components have extremely high requirements on working temperature, and the service life of the product is greatly reduced when the temperature is higher. And because all are designed according to unified standard, the integral heat dissipation will cause the whole size of product to increase by a wide margin, the corresponding hardware cost that has improved the product.
Disclosure of Invention
The purpose of the invention is as follows: the utility model discloses aim at is not enough to prior art, provides a three warm areas isolated converter, through reasonable thermal design, has improved the inside temperature environment of converter.
The technical scheme is as follows: the utility model discloses a three-temperature-zone isolated frequency converter, including the converter, bottom is equipped with fan and cold wind air intake in the converter, and the top is equipped with hot-blast air outlet, form the circulation of air passageway along cold wind air intake to hot-blast air outlet in the converter; the area of the top of the frequency converter close to the hot air outlet is a high-temperature area, and a medium-temperature area and a low-temperature area are respectively arranged along two sides of the air circulation channel.
Further perfecting the technical scheme, the high-temperature area is used for installing a direct-current reactor; the medium-temperature region is used for installing an IGBT module, a switching power supply and a busbar; the low-temperature area is used for installing a rectifier and a contactor.
Further, an IGBT radiator is installed in the air circulation channel and adjacent to the IGBT module.
Further, a rectifier radiator is mounted in the air circulation channel adjacent to the rectifier.
Furthermore, the IGBT radiator and the rectifier radiator are distributed in the frequency converter in an up-and-down mode.
Has the advantages that: compared with the prior art, the utility model has the advantages of: the utility model discloses a meticulous thermal design has formed the circulation of air passageway from bottom to top, and divide into high-temperature region, middle warm district, low temperature region according to the components and parts characteristics of converter, has guaranteed the low temperature environment of product inside, has designed rectifier radiator, IGBT radiator to main heating source along the circulation of air passageway, blows through the bottom fan, and hot-air rises the principle, and the temperature rise of product inside is controlled about 20 degrees basically, has improved inside temperature environment greatly, has reduced the fault rate of product; meanwhile, the hardware cost of the product is reduced, so that the product has higher cost performance during marketization competition.
Drawings
FIG. 1 is a schematic diagram of a prior art architecture;
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
As shown in fig. 2, in the three-temperature-zone isolated frequency converter, a fan and a cold air inlet 15 are arranged at the bottom of the frequency converter, a hot air outlet 11 is arranged at the top of the frequency converter, and an air circulation channel is formed from the cold air inlet 15 to the hot air outlet 11 in the frequency converter; the area of the top of the frequency converter close to the hot air outlet is a high temperature area 12, and a medium temperature area 14 and a low temperature area 17 are respectively arranged along the two sides of the air circulation channel. Some components with small heat productivity, such as a rectifier, a contactor and the like, are placed in the low-temperature area 17, the main heat source IGBT module, the switching power supply and a large number of internal bus are arranged in the medium-temperature area 14, and the internal direct-current reactor is placed at the top end of the air duct of the high-temperature area 12. An IGBT radiator 13 is arranged adjacent to the IGBT module, and a rectifier radiator 18 is arranged adjacent to the rectifier.
The temperature rise inside the product is basically controlled to be about 20 ℃ by the principle of blowing by a bottom fan and rising of hot air, so that the internal temperature environment is greatly improved. The radiator of rectifier can reduce the volume by a wide margin, and rectifier, IGBT etc. can suitably reduce the capacity simultaneously and use, owing to reasonable thermal design, have reduced the structure cost of product simultaneously.
As noted above, while the invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited to the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a three warm areas isolation formula converters, includes the converter, its characterized in that: a fan and a cold air inlet are arranged at the bottom in the frequency converter, a hot air outlet is arranged at the top, and an air circulation channel is formed from the cold air inlet to the hot air outlet in the frequency converter; the area of the top of the frequency converter close to the hot air outlet is a high-temperature area, and a medium-temperature area and a low-temperature area are respectively arranged along two sides of the air circulation channel.
2. The three temperature zone isolated frequency converter of claim 1, characterized in that: the high-temperature area is used for installing a direct-current reactor; the medium-temperature region is used for installing an IGBT module, a switching power supply and a busbar; the low-temperature area is used for installing a rectifier and a contactor.
3. The three temperature zone isolated frequency converter of claim 2, characterized in that: and an IGBT radiator is arranged in the air circulation channel and adjacent to the IGBT module.
4. The three temperature zone isolated frequency converter of claim 3, characterized in that: and a rectifier radiator is arranged in the air circulation channel and adjacent to the rectifier.
5. The three temperature zone isolated frequency converter of claim 4, characterized in that: the IGBT radiator and the rectifier radiator are distributed in the frequency converter in an up-and-down mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221823579.8U CN217984838U (en) | 2022-07-15 | 2022-07-15 | Three-temperature-zone isolated frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221823579.8U CN217984838U (en) | 2022-07-15 | 2022-07-15 | Three-temperature-zone isolated frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217984838U true CN217984838U (en) | 2022-12-06 |
Family
ID=84277023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221823579.8U Active CN217984838U (en) | 2022-07-15 | 2022-07-15 | Three-temperature-zone isolated frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217984838U (en) |
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2022
- 2022-07-15 CN CN202221823579.8U patent/CN217984838U/en active Active
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