CN112714581A - Rail transit vehicle and converter and radiator thereof - Google Patents
Rail transit vehicle and converter and radiator thereof Download PDFInfo
- Publication number
- CN112714581A CN112714581A CN201911019585.0A CN201911019585A CN112714581A CN 112714581 A CN112714581 A CN 112714581A CN 201911019585 A CN201911019585 A CN 201911019585A CN 112714581 A CN112714581 A CN 112714581A
- Authority
- CN
- China
- Prior art keywords
- heat sink
- radiator
- fins
- base plate
- current transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 description 8
- 230000005855 radiation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/209—Heat transfer by conduction from internal heat source to heat radiating structure
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a rail transit vehicle and a current transformer and a radiator thereof, wherein the radiator comprises: a heat sink substrate; the fixed end of the radiator fin is fixed on the radiator base plate, and the radiator fin is of a needle-shaped structure which is gradually enlarged from the free end to the fixed end of the radiator fin. The radiator fins are added on the radiator base plate, and the surfaces of the radiator fins are set to be of gradually-changed structures, so that the radiating area of the surfaces of the radiators can be increased, and the radiating effect is improved. The size and the number of the radiator fins can be set according to different requirements and are all within a protection range.
Description
Technical Field
The invention relates to the technical field of rail transit vehicles, in particular to rail transit, a current transformer and a radiator thereof.
Background
Along with the rapid development of the rail transit industry in China, heavy load, high speed and high power density are increasingly paid more attention by the industry, and in addition, the importance of modern rail transit equipment on reliability requirements, performance indexes, power density and the like is self-evident. The design of the heart-current transformer used for rail transit is particularly important, wherein the power device IGBT is a core key device in the current transformer, and the reliability of the whole machine is directly influenced by the working state of the power device IGBT. The power device IGBT has large heat productivity, and the heat dissipation requirement cannot be met only by heat dissipation of the packaging shell.
In summary, the design of the module radiator and the heat dissipation performance in the converter directly concern the safe and stable operation of the converter, so the heat dissipation design must be continuously innovated to meet new requirements.
Therefore, how to provide a heat sink to meet the heat dissipation requirement of the converter is a technical problem to be solved in the art.
Disclosure of Invention
In view of the above, the present invention provides a heat sink to meet the heat dissipation requirement of the converter. Another object of the present invention is to provide a current transformer having the above heat sink and a rail transit vehicle having the current transformer.
In order to achieve the purpose, the invention provides the following technical scheme:
a heat sink, comprising:
a heat sink substrate;
the fixed end of the radiator fin is fixed on the radiator base plate, and the radiator fin is of a needle-shaped structure which is gradually enlarged from the free end to the fixed end of the radiator fin.
Preferably, in the above heat sink, the heat sink substrate includes a first end close to the air outlet and a second end close to the air inlet, and the density of the heat sink fins on the first end is greater than the density of the heat sink fins on the second end.
Preferably, in the above heat sink, the density of the heat sink fins on the heat sink substrate near the power device with large heat loss is greater than the density of the heat sink fins near the power device with small heat loss.
Preferably, in the heat sink described above, the heat sink base plate and the heat sink fins are integrally molded.
Preferably, in the above heat sink, the heat sink fins are inserted into the heat sink base plate.
Preferably, in the above heat sink, a plurality of mounting holes for inserting the heat sink fins are uniformly arranged on the heat sink substrate.
A current transformer of a rail transit vehicle comprises a radiator, wherein the radiator is any one of the radiators.
A rail transit vehicle comprises a current transformer, wherein the current transformer is the current transformer.
According to the technical scheme, the radiator fins are additionally arranged on the radiator base plate, and the surfaces of the radiator fins are set to be of the gradually-changed structures, so that the radiating area of the surfaces of the radiators can be increased, and the radiating effect is improved. The size and the number of the radiator fins can be set according to different requirements and are all within a protection range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a front view of a heat sink disclosed in an embodiment of the present invention;
FIG. 2 is a side view of the heat sink disclosed in an embodiment of the present invention;
fig. 3 is a top view of the heat sink disclosed in the embodiments of the present invention.
Detailed Description
In view of this, the core of the present invention is to disclose a heat sink to meet the heat dissipation requirement of the converter. The invention also discloses a current transformer with the radiator and a rail transit vehicle with the current transformer.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-3, the present invention discloses a heat sink, which includes a heat sink base plate 1 and a heat sink fin 2, wherein a fixed end of the heat sink fin 2 is fixed on the heat sink base plate 1, the heat sink fin 2 is a needle-like structure gradually expanding from a free end to the fixed end of the heat sink fin 2, and the free end is an end of the heat sink fin 2 which is not connected, i.e. an end opposite to the fixed end. Increase radiator fin 2 on radiator base plate 1 in this application to set up radiator fin 2 surface into the structure of gradual change, can increase the radiating area on radiator surface, thereby improve the radiating effect. The size and the number of the radiator fins 2 can be set according to different requirements and are all within the protection range.
In a specific embodiment, the heat sink base plate 1 includes a first end near the air outlet and a second end near the air inlet, and the density of the heat sink fins 2 on the first end is greater than the density of the heat sink fins 2 on the second end. Specifically, the radiator fins 2 on the first end and the radiator fins 2 on the second end are uniformly arranged. Because the temperature of the second end that is close to air inlet department can be higher than the temperature of the first end that is close to air outlet department, consequently, the turbulence degree between radiator fin 2 has been strengthened to above-mentioned setting, can guarantee that whole radiator base plate 1 temperature is more even. The density of the first end heat sink fins 2 and the density of the second end heat sink fins 2 can be adjusted according to actual needs, and are not limited in detail herein.
The density of the heat sink fins 2 on the heat sink base plate 1 in the present application near the power device 3 where the heat loss is large is greater than the density of the heat sink fins 2 near the power device 3 where the heat loss is small. In practice, local encryption is carried out according to actual heat loss, the arrangement of the radiator fins 2 is flexible and changeable, and the number and the distance of the radiator fins 2 can be adjusted to meet different heat dissipation requirements.
The height of the radiator fins 2 can be adjusted according to actual requirements, and the number of the radiator fins 2 in different directions is reasonably arranged according to actual radiating conditions. The core of the application lies in improving the heat radiation performance of the radiator and enabling the temperature of the radiator substrate 1 to be balanced, and the heat radiation area of the whole radiator is increased, the turbulence degree among the radiator fins 2 is enhanced, and the design methods such as the number, the distribution and the thickness of the radiator fins 2 are adjusted.
In a further embodiment, the heat sink base plate 1 and the heat sink fins 2 are integrally formed or the heat sink fins 2 are inserted into the heat sink base plate 1. The two connection modes of the radiator fins 2 and the radiator base plate 1 are disclosed, so that the radiator fins 2 can be conveniently replaced in an integral die-sinking forming mode or a splicing mode, and the cost of integrally replacing the radiator is reduced.
In a preferred embodiment, a plurality of mounting holes for inserting the heat sink fins 2 are uniformly arranged on the heat sink base plate 1. In practice, the radiator fins 2 can be inserted according to different density requirements to achieve different requirements. The radiator fins 2 are inserted into the radiator base plate 1, so that different requirements can be met, and the application range of the radiator is widened.
In addition, the application also discloses a current transformer of a rail transit vehicle, which comprises a radiator, wherein the radiator is the radiator disclosed in the embodiment, so that the current transformer of the rail transit vehicle with the radiator also has all the technical effects, and the details are not repeated herein.
In addition, the application also discloses a rail transit vehicle, which comprises a current transformer, wherein the current transformer is disclosed in the embodiment, so that the rail transit vehicle with the current transformer also has all the technical effects, and the details are not repeated herein.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A heat sink, comprising:
a heat sink substrate;
the fixed end of the radiator fin is fixed on the radiator base plate, and the radiator fin is of a needle-shaped structure which is gradually enlarged from the free end to the fixed end of the radiator fin.
2. The heat sink of claim 1, wherein the heat sink base plate includes a first end proximate the air outlet and a second end proximate the air inlet, and wherein a density of the heat sink fins on the first end is greater than a density of the heat sink fins on the second end.
3. The heat sink of claim 1, wherein the density of the heat sink fins on the heat sink substrate near the power devices with large heat loss is greater than the density of the heat sink fins near the power devices with small heat loss.
4. The heat sink as claimed in any one of claims 1 to 3, wherein the heat sink base plate is integrally formed with the heat sink fins.
5. A heat sink as claimed in any one of claims 1 to 3, wherein the heat sink fins are plugged onto the heat sink base plate.
6. The heat sink as claimed in claim 5, wherein the heat sink base plate has a plurality of mounting holes for inserting the heat sink fins.
7. Current transformer for rail vehicles, comprising a radiator, characterized in that the radiator is according to any of claims 1-6.
8. A rail transit vehicle comprising a current transformer, characterized in that the current transformer is according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911019585.0A CN112714581A (en) | 2019-10-24 | 2019-10-24 | Rail transit vehicle and converter and radiator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911019585.0A CN112714581A (en) | 2019-10-24 | 2019-10-24 | Rail transit vehicle and converter and radiator thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112714581A true CN112714581A (en) | 2021-04-27 |
Family
ID=75540357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911019585.0A Pending CN112714581A (en) | 2019-10-24 | 2019-10-24 | Rail transit vehicle and converter and radiator thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112714581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114068449A (en) * | 2021-12-15 | 2022-02-18 | 株洲中车时代半导体有限公司 | Heat dissipation substrate and power module |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201146657Y (en) * | 2007-09-25 | 2008-11-05 | 张健 | Electronic component and radiator for electronic chip |
| CN202310427U (en) * | 2011-10-25 | 2012-07-04 | 赵敏 | Heat radiator |
| CN203194080U (en) * | 2013-04-07 | 2013-09-11 | 昆山谷捷金属制品有限公司 | Pin type heat dissipation device |
| CN203375406U (en) * | 2013-08-23 | 2014-01-01 | 西安重装渭南光电科技有限公司 | Heat dissipation device for LED lamp and LED light source module |
| CN105682415A (en) * | 2014-11-20 | 2016-06-15 | 深圳万讯自控股份有限公司 | Radiating apparatus, driver and radiating method for driver |
| CN205830253U (en) * | 2016-08-02 | 2016-12-21 | 成都雷电微力科技有限公司 | A kind of Novel fin flow passage structure |
| CN106455423A (en) * | 2016-09-26 | 2017-02-22 | 株洲中车时代电气股份有限公司 | Low-flow resistance mean-temperature radiator for rail transit converter |
-
2019
- 2019-10-24 CN CN201911019585.0A patent/CN112714581A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201146657Y (en) * | 2007-09-25 | 2008-11-05 | 张健 | Electronic component and radiator for electronic chip |
| CN202310427U (en) * | 2011-10-25 | 2012-07-04 | 赵敏 | Heat radiator |
| CN203194080U (en) * | 2013-04-07 | 2013-09-11 | 昆山谷捷金属制品有限公司 | Pin type heat dissipation device |
| CN203375406U (en) * | 2013-08-23 | 2014-01-01 | 西安重装渭南光电科技有限公司 | Heat dissipation device for LED lamp and LED light source module |
| CN105682415A (en) * | 2014-11-20 | 2016-06-15 | 深圳万讯自控股份有限公司 | Radiating apparatus, driver and radiating method for driver |
| CN205830253U (en) * | 2016-08-02 | 2016-12-21 | 成都雷电微力科技有限公司 | A kind of Novel fin flow passage structure |
| CN106455423A (en) * | 2016-09-26 | 2017-02-22 | 株洲中车时代电气股份有限公司 | Low-flow resistance mean-temperature radiator for rail transit converter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114068449A (en) * | 2021-12-15 | 2022-02-18 | 株洲中车时代半导体有限公司 | Heat dissipation substrate and power module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100981155B1 (en) | Heatsink | |
| CN201438459U (en) | Heat sink combination | |
| CN112714581A (en) | Rail transit vehicle and converter and radiator thereof | |
| CN213818423U (en) | Electronic equipment and heat dissipation device thereof | |
| CN201422221Y (en) | Heat sink device | |
| CN213692028U (en) | Efficient radiator module for air-cooled module | |
| CN221766007U (en) | Liquid cooling chassis and liquid cooling server | |
| CN202737755U (en) | Inverter heat dissipation device of built-in inductor | |
| CN205693973U (en) | A kind of pcb board assembly | |
| CN101739106A (en) | Radiator optimally designed along with wind speed of flow field | |
| CN209914352U (en) | Radiating fin and radiating device using same | |
| CN110534487A (en) | The motor vehicle of component and band member with the cooling power optimized through insertion element | |
| CN212727823U (en) | Power supply device | |
| CN211580514U (en) | Heat dissipation device and electronic equipment | |
| KR200319226Y1 (en) | Heat-radiate device for heat-pipe having fan-shape heat-pin | |
| CN214281938U (en) | Radiator, electrical apparatus box and air conditioner | |
| CN211378593U (en) | Servo driver with independent air duct structure | |
| CN203909706U (en) | Novel CPU (Central Processing Unit) radiating fan | |
| CN211377343U (en) | Heat radiator | |
| CN211378583U (en) | Heat dissipation device and converter | |
| CN207676749U (en) | A kind of load device improving the heat dissipation of high-power RF isolator | |
| CN214708519U (en) | Inverter with high cooling performance | |
| CN214316113U (en) | Shielding case and electronic equipment | |
| CN212344335U (en) | Heat dissipation device and plug box | |
| CN216563106U (en) | Heat dissipation plate, power module and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210427 |