CN205987683U - Forced -air cooling heat dissipation piece and IGBT air -cooled radiator thereof - Google Patents
Forced -air cooling heat dissipation piece and IGBT air -cooled radiator thereof Download PDFInfo
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- CN205987683U CN205987683U CN201620949432.1U CN201620949432U CN205987683U CN 205987683 U CN205987683 U CN 205987683U CN 201620949432 U CN201620949432 U CN 201620949432U CN 205987683 U CN205987683 U CN 205987683U
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- radiating
- cooling heat
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- air
- overlapping portion
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Abstract
The utility model discloses a forced -air cooling heat dissipation piece, including aluminium matter conducting strip, aluminium matter conducting strip has bar coincide portion, and bar coincide portion extends along its length direction one side marginal welt shape coincide portion length direction interval and is formed with the polylith radiating part, and the radiating part forms the wave form heat radiation fins who has wave structure through the punching press. Still disclose a IGBT air -cooled radiator, including polylith forced -air cooling heat dissipation piece, be equipped with aluminium matter heat conduction parting bead between the coincide portion of two adjacent forced -air cooling heat dissipation pieces to through fastening bolt make all coincide portions with aluminium matter heat conduction parting bead inseparable coincide be in the same place, the bottom surface after the coincide portion of all forced -air cooling heat dissipation pieces and the coincide of aluminium matter heat conduction parting bead is formed with smooth contact surface. The utility model discloses simple structure has changed traditional heat dissipation mode, makes the radiating efficiency higher, and the radiating effect is better, can reduce the volume of whole radiator, and weight reduction reduces the cost of manufacture, can ensure the normal operating of IGBT module.
Description
Technical field
This utility model is related to semiconductor heat-dissipating field and in particular to a kind of wind-cooling heat dissipating piece and its IGBT wind-cooling heat dissipating
Device.
Background technology
IGBT is the abbreviation of English Insulated Gate Bipolar Transistor, and Chinese is that insulated gate is double
Bipolar transistor, typically requires when using and IGBT is fabricated to various modules is used, abbreviation IGBT module.This module exists
Big calorimetric can be produced, in order that IGBT module is capable of the work of safety, IGBT working junction temperature have to be lower than permission during work process
Maximum junction temperature, not only in rated range it needs to be ensured that simultaneously under over loading abnormality also it should be ensured that.Therefore radiate
The design of device is most important, is the key factor that can IGBT module heat efficiently distribute.
Fin is as an important component part of radiator, the warm being come out module by thermal conduction characteristic itself
By heat transfer in surrounding air, the radiating effect of therefore fin directly influences the radiating effect of whole radiator to amount.
Generally fin is to improve radiating effect with increasing heat radiation area, but for the IGBT module larger to some caloric values,
For work that can be safe, just it is accomplished by a heat sink arranging more fin, to meet distributing of big heat.
With the increase of fin quantity, the volume of whole radiator also increases therewith, is so accomplished by bigger installing space, in addition
Cost also rises therewith.
Utility model content
For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is：How a kind of knot is provided
Structure is simple, with low cost, radiating efficiency more preferable wind-cooling heat dissipating piece.
In order to solve above-mentioned technical problem, this utility model employs following technical scheme：
A kind of wind-cooling heat dissipating piece, including aluminum conducting strip it is characterised in that：Described aluminum conducting strip has bar shaped overlapping
Portion, lateral edges are formed with polylith radiating along the interval extension of bar shaped overlapping portion length direction along its length in bar shaped overlapping portion
Portion, radiating part passes through the waveform radiating fin being stamped and formed out having waveform configuration.
In this utility model, bar shaped overlapping portion absorbs the heat of the generation of IGBT module, then passes through the heat biography of itself
Pass, heat dispersion is delivered on each radiating part, radiating part is the waveform radiating fin of waveform configuration, which adds scattered
The area of dissipation of hot portion both side surface.In addition employ spaced polylith radiating part, with respect to monoblock of the prior art
Radiating part, also add the area of dissipation of every piece of radiating part lateral parts, so cold wind through radiator air passage is gone back simultaneously
The heat of every piece of radiating part lateral parts can be taken away, such radiating efficiency is just improved, the heat taken away is just more, has
Structure is simple, makes easy advantage.
As optimization, adjacent two pieces of waveform radiating fins respectively along described bar shaped overlap minister's degree direction projection crest with
Trough interlocks corresponding.The both side surface of each piece of waveform radiating fin can produce a gas respectively between crest and trough
Body runner, is interlocked by the crest on adjacent two pieces of waveform radiating fins and trough corresponding, this makes it possible to make air-flow logical
After crossing the gas flow that previous piece of waveform radiating fin produces, can not only be with the gas stream of next block waveform radiating fin generation
Road, relatively moreover it is possible to relative with the lateral parts of waveform radiating fin, this makes it possible to actively take away the side of waveform radiating fin
Partial heat, improves radiating efficiency further.
This utility model still further provides a kind of IGBT air-cooled radiator, including polylith fin, described fin
For the wind-cooling heat dissipating piece in the claims, between the overlapping portion of adjacent two panels wind-cooling heat dissipating piece, it is provided with aluminum heat conduction parting bead,
And by fastening bolt, all of overlapping portion and aluminum heat conduction parting bead are closely superimposed together, all of wind-cooling heat dissipating piece
Overlapping portion and aluminum heat conduction parting bead overlapping after bottom surface be formed with smooth contact surface.By by the overlapping portion of polylith fin
It is superimposed with aluminum heat conduction parting bead, form smooth contact surface as the work surface contacting with IGBT module in its bottom surface, absorb
The heat that IGBT module produces, aluminum heat conduction parting bead can make the radiating part on adjacent two pieces of fin be spaced, be easy to be formed
The air channel that can cause air flow through, improves the radiating efficiency of radiator.
As optimization, it is respectively equipped with aluminum backplate positioned at the outside of the described wind-cooling heat dissipating piece of radiator both sides, aluminum is protected
Plate includes being capable of the compressed part being superimposed together with adjacent described overlapping portion and screening of being screened in adjacent heat radiation portion
Portion, described fastening bolt can make compressed part closely be superimposed together with described overlapping portion, shield portion and adjacent described radiating part
Between be formed with radiating flow passage, shield portion is provided with radiating fin towards the side of radiating flow passage.Thickness due to every piece of fin
All relatively thin, when radiator is installed, operator easily cause to fin to damage, in radiator both sides respectively
Setting aluminum backplate, can not only provide heat-sinking capability, internal fin can also be protected, it is to avoid after damage simultaneously
Reduce radiating efficiency.
As optimization, described contact surface is fixedly connected with one piece by way of bonding and be arranged in parallel with described contact surface
Copper coin.In metal material, the heat conductivity of copper is greater than the heat conductivity of aluminum it is contemplated that the factor of cost and weight, leads to
Frequently with metallic aluminium as radiator raw material.It is bonded and to reach fixing company by making copper coin and aluminum contact surface at low temperature
The purpose connecing, makes copper coin and aluminum contact surface combine and consolidate.In addition directly can be carried out with IGBT module by copper coin after being bonded
Welding, the heat that such IGBT module produces directly is delivered to aluminum contact surface by copper coin, reduces thermal resistance, it is right to improve
The heat conductivility of IGBT module, enables the heat of IGBT module to distribute in time.
In sum, the beneficial effects of the utility model are：This utility model structure is simple, changes traditional radiating
Pattern, makes radiating efficiency higher, and radiating effect more preferably, can reduce the volume of whole radiator, mitigates weight, and reduction is fabricated to
This is it can be ensured that the normal operation of IGBT module.
Brief description
In order that the purpose of utility model, technical scheme and advantage are clearer, new to this practicality below in conjunction with accompanying drawing
Type is described in further detail, wherein：
Fig. 1 is the front view of air-cooled fin in this utility model；
Fig. 2 is the side view of air-cooled fin in this utility model；
Fig. 3 is the side view of IGBT air-cooled radiator in this utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, the wind-cooling heat dissipating piece in this specific embodiment, including aluminum conducting strip, described aluminum is led
Backing has bar shaped overlapping portion 1, and lateral edges are spaced along bar shaped overlapping portion 1 length direction along its length in bar shaped overlapping portion 1
Extend and be formed with polylith radiating part 2, radiating part 2 passes through the waveform radiating fin being stamped and formed out having waveform configuration.
In this specific embodiment, adjacent two pieces of waveform radiating fins are thrown along described bar shaped overlapping portion 1 length direction respectively
The crest of shadow and trough interlock corresponding.
A kind of IGBT air-cooled radiator, including polylith fin, described fin is above-mentioned wind-cooling heat dissipating piece, adjacent two panels
It is provided with aluminum heat conduction parting bead 3 between the overlapping portion 1 of wind-cooling heat dissipating piece, and all of overlapping portion 1 He is made by fastening bolt
Aluminum heat conduction parting bead 3 is closely superimposed together, after the overlapping portion 1 of all of wind-cooling heat dissipating piece is overlapped with aluminum heat conduction parting bead 3
Bottom surface is formed with smooth contact surface.
In this specific embodiment, it is respectively equipped with aluminum shield positioned at the outside of the described wind-cooling heat dissipating piece of radiator both sides
Plate, aluminum backplate is included the compressed part 4 being superimposed together with adjacent described overlapping portion 1 and adjacent heat radiation portion 2 can be entered
The shield portion 5 that row is screened, described fastening bolt can make compressed part 4 closely be superimposed together with described overlapping portion 1, shield portion 5
It is formed with radiating flow passage between adjacent described radiating part 2, shield portion 5 is provided with radiating fin towards the side of radiating flow passage.
In this specific embodiment, described contact surface is fixedly connected with by way of bonding one piece and described contact surface
The copper coin be arrangeding in parallel.
During being embodied as, overlapping portion 1, aluminum are led by described contact surface using the welding manner of agitating friction weldering
Hot parting bead 3 and compressed part 4 are welded as entirety.Throat thickness 3 to 10mm, with strengthen fin, heat conduction parting bead and aluminum backplate it
Between conduction of heat.
The thickness of described copper coin is 0.05～0.3mm, and described copper coin is 10～50 μ with the bonded layer thickness of described contact surface
m.The thickness of thin of copper coin, usage amount is less, is conducive to cost is controlled, and also reduces weight simultaneously.Described copper coin away from
The flatness of described contact surface side side is 0.04～0.08mm.Be conducive to the reduction of thermal resistance, improve heat conductivility.Described copper
The area of section of plate is less than the surface area of described contact surface.Reduce the usage amount of copper further, be conducive to cost is controlled,
With reduction weight.
It can in addition contain be respectively provided with radiator fan to increase resh air requirement to reach raising heat radiation energy at the two ends of radiator
The purpose of power, only can arrange radiator fan it is also possible to be respectively provided with radiator fan at the two ends of radiator in one end of radiator.
Radiator fan is fixed by screws on aluminum backplate, and such radiator fan fixation is more firm.When double fan is set, must
Must guarantee that the air flow direction of radiator fan blowout is consistent.
Finally illustrate, above example only in order to the technical solution of the utility model to be described and unrestricted, although logical
Cross and this utility model is described with reference to preferred embodiment of the present utility model, but those of ordinary skill in the art
It should be appreciated that in the form and details it can be made with various changes, without departing from appended claims institute
The spirit and scope of the present utility model limiting.
Claims (5)
1. a kind of wind-cooling heat dissipating piece, including aluminum conducting strip it is characterised in that：Described aluminum conducting strip has bar shaped overlapping portion,
Lateral edges are formed with polylith radiating part along the interval extension of bar shaped overlapping portion length direction along its length in bar shaped overlapping portion, dissipate
Hot portion passes through the waveform radiating fin being stamped and formed out having waveform configuration.
2. wind-cooling heat dissipating piece according to claim 1 it is characterised in that：Adjacent two pieces of waveform radiating fins are respectively along described
It is corresponding that bar shaped overlaps the crest of minister's degree direction projection and trough interlocks.
3. a kind of IGBT air-cooled radiator it is characterised in that：Including polylith fin, described fin is the claims 1
Or 2 wind-cooling heat dissipating pieces in any one, it is provided with aluminum heat conduction parting bead between the overlapping portion of adjacent two panels wind-cooling heat dissipating piece, and
By fastening bolt, all of overlapping portion and aluminum heat conduction parting bead are closely superimposed together, all of wind-cooling heat dissipating piece folded
Conjunction portion is formed with smooth contact surface with the bottom surface after aluminum heat conduction parting bead overlapping.
4. IGBT air-cooled radiator according to claim 3 it is characterised in that：Described air-cooled positioned at radiator both sides dissipates
The outside of backing is respectively equipped with aluminum backplate, and aluminum backplate includes the compressed part being superimposed together with adjacent described overlapping portion
With the shield portion that can be screened in adjacent heat radiation portion, described fastening bolt can make compressed part closely fold with described overlapping portion
It is combined, be formed with radiating flow passage between shield portion and adjacent described radiating part, shield portion sets towards the side of radiating flow passage
There is radiating fin.
5. IGBT air-cooled radiator according to claim 3 it is characterised in that：On described contact surface by way of bonding
It is fixedly connected with one piece of copper coin be arrangeding in parallel with described contact surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620949432.1U CN205987683U (en) | 2016-08-26 | 2016-08-26 | Forced -air cooling heat dissipation piece and IGBT air -cooled radiator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620949432.1U CN205987683U (en) | 2016-08-26 | 2016-08-26 | Forced -air cooling heat dissipation piece and IGBT air -cooled radiator thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205987683U true CN205987683U (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620949432.1U Expired - Fee Related CN205987683U (en) | 2016-08-26 | 2016-08-26 | Forced -air cooling heat dissipation piece and IGBT air -cooled radiator thereof |
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| Country | Link |
|---|---|
| CN (1) | CN205987683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557821A (en) * | 2023-07-10 | 2023-08-08 | 深圳市莎朗科技有限公司 | AI intelligent biological rhythm time light controller |
-
2016
- 2016-08-26 CN CN201620949432.1U patent/CN205987683U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557821A (en) * | 2023-07-10 | 2023-08-08 | 深圳市莎朗科技有限公司 | AI intelligent biological rhythm time light controller |
| CN116557821B (en) * | 2023-07-10 | 2023-12-15 | 深圳市莎朗科技有限公司 | AI intelligent biological rhythm time light controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20170826 |