CN110310935A - A kind of IGBT radiator of Small-power Inverter - Google Patents
A kind of IGBT radiator of Small-power Inverter Download PDFInfo
- Publication number
- CN110310935A CN110310935A CN201910559851.2A CN201910559851A CN110310935A CN 110310935 A CN110310935 A CN 110310935A CN 201910559851 A CN201910559851 A CN 201910559851A CN 110310935 A CN110310935 A CN 110310935A
- Authority
- CN
- China
- Prior art keywords
- heat
- radiating
- radiating substrate
- radiator
- igbt
- 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 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 230000017525 heat dissipation Effects 0.000 claims abstract description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/367—Cooling facilitated by shape of device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/367—Cooling facilitated by shape of device
- H01L23/3672—Foil-like cooling fins or heat sinks
-
- 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
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
Abstract
The invention discloses a kind of IGBT radiator of Small-power Inverter, the IGBT radiator include the heat-radiating substrate with orthogonal first radiating surface and the second radiating surface, heat-radiating substrate medial surface setting multi-disc favour heat-radiating substrate and radiating fin parallel to each other；The length of heat-radiating substrate in the vertical direction is greater than the length of radiating fin in the vertical direction.The beneficial effects of the present invention are: 1. use the mutually perpendicular heat-radiating substrate of " 7 " font, mutually perpendicular two heat dissipations mounting surface is provided, the flexible topology of multiple and different stitch encapsulation heating elements can be facilitated；Heat-radiating substrate and fin are flexibly arranged in pairs or groups, and Homogeneouslly-radiating is convenient for, and save material cost.2. radiator base plate, which stretches out casing bottom surface, directly to be contacted with cabinet, so that frequency converter directly reduces the interference of frequency converter, improves the Electro Magnetic Compatibility of system with cabinet grounding connection in lower cost and in the case where do not destroy heat dissipation wind channel and appearance.
Description
Technical field
The present invention relates to heat sink technology field, in particular to the IGBT radiator of a kind of Small-power Inverter.
Background technique
IGBT, insulated gate bipolar transistor are by BJT (double pole triode) and MOS (insulating gate type field effect tube)
The compound full-control type voltage driven type power semiconductor of composition, driving power is small and saturation pressure reduces.It is very suitable to answer
It is passed for converter system such as alternating current generator, frequency converter, Switching Power Supply, lighting circuit, traction that DC voltage is 600V or more
It is dynamic to wait fields.IGBT module is to pass through spy by IGBT (insulated gate bipolar transistor chip) and FWD (freewheeling diode chip)
Modularized semiconductor product made of fixed circuit bridge encapsulation；IGBT module after encapsulation directly applies to frequency converter, UPS not
In the equipment such as uninterruptible power；IGBT module has the characteristics that energy saving, convenient to install and maintain, heat dissipation is stablized；It is sold on Vehicles Collected from Market
Be mostly this kind of module product, general described IGBT also refers to IGBT module；IGBT is the core device of energy transformation and transmission
Part is commonly called as " CPU " of power electronic equipment, as national strategy new industry, in rail traffic, smart grid, aviation boat
It, electric car and new energy equipment etc. fields application it is extremely wide.The main heating position of IGBT module inside semiconductor chip,
The heat that internal loss generates, is transferred on tube socket and radiator by heat transfer first.
Radiator in existing market upconverter is the structure for the radiating fin that monobasal vertical extension goes out plural number mostly,
Structure is as shown in attached drawing Fig. 1.The biggish component that generates heat in low power frequency converter mainly has rectifier bridge, IGBT, metal-oxide-semiconductor
Deng, and the IGBT needs of single tube are multiple.Due to only one mounting surface of radiator, not for multiple heating element mounting arrangements
Flexibly, and the device parallel with stitch for radiating surface is needed stitch bending, and processing is complicated.
And be in practical applications several frequency converters mostly and be installed along with inside sheet-metal cabinet together with equipment such as PLC,
The Electro Magnetic Compatibility of whole cabinet system is very big to the performance and stability influence of equipment.For frequency converter, with machine
Whether cabinet there is good ground connection to have decided on whether effectively reduce electromagnetic interference.And in order to outer in Small-power Inverter
Sight is considered with heat dissipation wind channel, and radiator is wrapped in the inside of plastic rubber case mostly, so that it can not easily connect with cabinet
Touch ground.
Summary of the invention
For the defect for overcoming radiator in above-mentioned technology, the present invention proposes a kind of IGBT radiator of Small-power Inverter,
It is achieved by the following technical solution.
A kind of IGBT radiator of Small-power Inverter, the IGBT radiator include having orthogonal first heat dissipation
The heat-radiating substrate of face and the second radiating surface favours heat-radiating substrate and parallel to each other in the multi-disc of heat-radiating substrate medial surface setting
Radiating fin；The length of heat-radiating substrate in the vertical direction is greater than the length of radiating fin in the vertical direction.
Further, the heat-radiating substrate is equal thickness substrate or non-equal thickness substrate.
Further, the IGBT radiator is aluminium alloy extruded radiator.
Further, it is provided with threaded hole on the heat-radiating substrate, for installing heating element and dissipating the IGBT
Hot device is installed on frequency converter casing.
The beneficial effects of the present invention are: 1. use the mutually perpendicular heat-radiating substrate of " 7 " font, mutually perpendicular two are provided
Radiate mounting surface, can facilitate the flexible topology of multiple and different stitch encapsulation heating elements；Heat-radiating substrate and fin are flexibly arranged in pairs or groups,
Convenient for Homogeneouslly-radiating, material cost is saved.2. radiator base plate, which stretches out casing bottom surface, directly to be contacted with cabinet, so that frequency converter
Directly frequency converter is reduced in lower cost and in the case where do not destroy heat dissipation wind channel and appearance with cabinet grounding connection
Interference, improve the Electro Magnetic Compatibility of system.
Detailed description of the invention
Fig. 1 is prior art heat spreader structures schematic diagram.
Fig. 2 is the schematic cross-section of radiator specific embodiment of the present invention.
Fig. 3 is the structural schematic diagram of radiator specific embodiment of the present invention.
Fig. 4 is the assembling schematic diagram of radiator assembly heating element of the present invention.
Fig. 5 is the structural schematic diagram that radiator of the present invention is assemblied in frequency converter.
Wherein: 11- heat-radiating substrate；111- mounting plane；112- threaded hole；
12- radiating fin；
131- rectifier bridge；132-IGBT module；
The first radiating surface of 21-；The second radiating surface of 22-；
51- frequency converter bottom case；511- frequency converter mounting hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figures 1 to 5, the IGBT radiator of a kind of Small-power Inverter, the IGBT radiator include having phase
The heat-radiating substrate 11 of mutual vertical the first radiating surface 21 and the second radiating surface 22 inclines in the multi-disc that 11 medial surface of heat-radiating substrate is arranged
Tiltedly in heat-radiating substrate and radiating fin 12 parallel to each other；The length of heat-radiating substrate 11 in the vertical direction is greater than radiating fin 12
Length in the vertical direction.
The present invention provides a kind of IGBT radiator devices of Small-power Inverter, are a kind of extrusion pressing type aluminium alloy heat radiators,
Including section in " 7 " font and with the heat-radiating substrate 11 of orthogonal first radiating surface 21 and the second radiating surface 22.With it is existing
There is technology to compare, the present invention can be separately mounted to the heating element that different stitch encapsulate on two radiating surfaces, such as Fig. 4 institute
Show, rectifier bridge 113 (its radiating surface is vertical with stitch) may be mounted on horizontal radiating surface；(it is dissipated IGBT module 132
Hot face is parallel with stitch) it may be mounted on vertical radiating surface, and the pin of bending IGBT module is no longer needed, in this way
It is more advantageous to the flexible topology of heating element, Homogeneouslly-radiating.
Simultaneously radiating fin 12 favour the angle of substrate be in production it is adjustable, for different tilt angles,
For the length of radiating fin 12 with regard to different, radiating efficiency is also just different, can be obtained according to the total power consumption generated heat on radiating surface
The angle of optimization.
As shown in figure 5, the length of heat-radiating substrate 11 in the vertical direction is greater than radiating fin 12 in vertical side in the present invention
Upward length, and frequency converter bottom case 51 can be stretched out after so that it is mounted on the casing of frequency converter, and should be than frequency converter bottom case 51
It is higher by size appropriate, this size being higher by should not influence the installation of frequency converter；Frequency converter is to pass through frequency converter using screw
Two diagonal mounting holes 511 locking is installed on cabinet on bottom case 51, and the heat-radiating substrate 11 of protrusion is contacted with cabinet, so that
Frequency converter and cabinet have good grounding connection, reduce interference, to improve the performance and stability of product.
Meanwhile the thickness of the heat-radiating substrate 11 can be it is identical be also possible to difference, according to being mounted thereon
The total power consumption of heating element make adjustment.The heating element is mainly rectifier bridge 131 and IGBT module 132.
In a particular embodiment, it is provided with threaded hole 112 on the heat-radiating substrate 11, for installing heating element and inciting somebody to action
The IGBT radiator is installed on frequency converter casing.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of IGBT radiator of Small-power Inverter, which is characterized in that the IGBT radiator includes having to be mutually perpendicular to
The first radiating surface and the second radiating surface heat-radiating substrate, heat-radiating substrate medial surface setting multi-disc favour heat-radiating substrate simultaneously
Radiating fin parallel to each other；The length of heat-radiating substrate in the vertical direction is greater than the length of radiating fin in the vertical direction.
2. a kind of IGBT radiator of Small-power Inverter according to claim 1, which is characterized in that the heat-radiating substrate
For equal thickness substrate or non-equal thickness substrate.
3. a kind of IGBT radiator of Small-power Inverter according to claim 1, which is characterized in that the IGBT heat dissipation
Device is aluminium alloy extruded radiator.
4. a kind of IGBT radiator of Small-power Inverter according to claim 1, which is characterized in that the heat-radiating substrate
On be provided with threaded hole, for installing heating element and the IGBT radiator being installed on frequency converter casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910559851.2A CN110310935A (en) | 2019-06-25 | 2019-06-25 | A kind of IGBT radiator of Small-power Inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910559851.2A CN110310935A (en) | 2019-06-25 | 2019-06-25 | A kind of IGBT radiator of Small-power Inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110310935A true CN110310935A (en) | 2019-10-08 |
Family
ID=68077581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910559851.2A Pending CN110310935A (en) | 2019-06-25 | 2019-06-25 | A kind of IGBT radiator of Small-power Inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110310935A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113141122A (en) * | 2020-01-20 | 2021-07-20 | 珠海格力电器股份有限公司 | Intelligent power module and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002246779A (en) * | 2001-02-20 | 2002-08-30 | Sansha Electric Mfg Co Ltd | Heat sink or mounting circuit board |
| CN103929926A (en) * | 2013-01-15 | 2014-07-16 | 发那科株式会社 | Motor-drive Unit Having Heat Radiator |
| CN209993589U (en) * | 2019-06-25 | 2020-01-24 | 深圳市默贝克驱动技术有限公司 | IGBT radiator of miniwatt converter |
-
2019
- 2019-06-25 CN CN201910559851.2A patent/CN110310935A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002246779A (en) * | 2001-02-20 | 2002-08-30 | Sansha Electric Mfg Co Ltd | Heat sink or mounting circuit board |
| CN103929926A (en) * | 2013-01-15 | 2014-07-16 | 发那科株式会社 | Motor-drive Unit Having Heat Radiator |
| CN209993589U (en) * | 2019-06-25 | 2020-01-24 | 深圳市默贝克驱动技术有限公司 | IGBT radiator of miniwatt converter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113141122A (en) * | 2020-01-20 | 2021-07-20 | 珠海格力电器股份有限公司 | Intelligent power module and preparation method thereof |
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