CN105023891A - An igbt radiator - Google Patents
An igbt radiator Download PDFInfo
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- CN105023891A CN105023891A CN201510319222.4A CN201510319222A CN105023891A CN 105023891 A CN105023891 A CN 105023891A CN 201510319222 A CN201510319222 A CN 201510319222A CN 105023891 A CN105023891 A CN 105023891A
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- radiating fin
- radiator body
- radiator
- igbt
- inner walls
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Abstract
The invention discloses an IGBT radiator comprising a radiator body which is of a metal regular-polygon structure. The outer walls of the side surfaces of the radiator body are smooth surfaces, and heat radiation fins are distributed on the inner walls of the side surfaces of the radiator body. The outer walls of the side surfaces of the radiator body are used as IGBT module installation zones. The bottom surface of the radiator is used as a draught fan installation zone. IGBT modules installed on the outer walls of the side surfaces of the radiator body are connected to an external circuit through connection conductive wires. In operation of the draught fan, wind is blown to the heat radiation fins distributed on the inner side of the radiator body to realize forced heat transferring of the IGBT modules. According to the IGBT radiator provided by the invention, three-dimensional installation of the IGBT modules which are in parallel and sharing of a common heat radiating air channel of multi-groups of IGBT modules are realized; heat dissipating capacity can be flexibly controlled; and the size of the IGBT heat radiation equipment is reduced to a great extent.
Description
Technical field
The invention belongs to power electronic equipment technical field of heat dissipation, more specifically, relate to a kind of IGBT heat spreader structures.
Background technology
Insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT) be a kind of switching device of full-control type, be widely used at electric and electronic technical field, common have the multiple application mode such as direct current voltage reulation, high-frequency rectification, the inversion of H bridge, and derive thus in a large number based on the power-supply device of IGBT technology.
IGBT in use self can produce heat, needs by radiator auxiliary heat dissipation.Traditional radiator is plate shaped, and side is smooth flat, for installing IGBT; Opposite side is covered with radiating fin, for air heat-exchange.In the use of reality, generally needing to stay with enough heat transfer spaces to radiator, also needing to design wind path when using blower fan forced heat radiation.When there is a large amount of IGBT in parallel, using this plate shaped radiator can take more installation and heat-dissipating space, needing the powerful blower fan of multiple stage to ensure enough air mass flows simultaneously, design, installation and use all exist inconvenience.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of IGBT heat spreader structures, its object is to adopt stereochemical structure, the solid installation and the heat dissipation wind channel that realize IGBT share, enhance the effect to IGBT heat exchange, solve heat dissipation problem during a large amount of parallel IGBT thus.
For achieving the above object, the invention provides a kind of IGBT radiator, comprise radiator body and at least one radiating fin; Radiator body is the positive gengon structure of metal, and its side outer wall is shiny surface, as IGBT module installing zone;
Radiating fin is distributed with, along arranging with the direction of horizontal plane in radiator body; At least one end face of radiating fin abuts with the side inner walls of radiator body, and the gap between radiating fin and between radiating fin and radiator body side forms heat dissipation channel;
The bottom of radiator body is as fan mounting area; To radiating fin air-supply inside radiator during fan operation, realize forced heat-exchanging; The IGBT module being arranged on radiator body side outer wall is connected with external circuit by connecting wire.
Preferably, a main radiating fin and at least one radiating fin is provided with in radiator body; Wherein, two end faces of main radiating fin abut with radiator body side inner walls, and main radiating fin is parallel with at least one side of radiator body, the distribution parallel with main radiating fin of secondary radiating fin; Wherein, main rectangular fin refers to that area of dissipation is maximum, bears the fin of main heat sink function.
Preferably, a main radiating fin and at least one radiating fin is provided with in radiator body; Wherein, two end faces of main radiating fin abut with the side inner walls of radiator body is vertical, the distribution parallel with main radiating fin of secondary radiating fin.
Further preferred, be provided with multiple tracks radiating fin in radiator body, an end face of per pass radiating fin abuts with side inner walls is vertical, and another end face is unsettled; Be not in contact with each other between radiating fin, radiating fin length is adjustable in the non-touching scope of radiating fin.
Further preferred, each side inner walls of radiator body is equipped with the parallel to each other and equally distributed radiating fin in a road; One end of radiating fin on each side abuts with this side inner walls is vertical; The other end is unsettled; Be not in contact with each other between the free end of each radiating fin, the length of radiating fin is adjustable in the non-touching scope of radiating fin; Wherein, a is not less than 1.
Further preferred, radiator body is hexahedron structure, each side inner walls of radiator body is equipped with the parallel to each other and equally distributed radiating fin in 9 roads; One end of radiating fin on each side abuts with this side inner walls is vertical, and the other end is unsettled.
Preferred further, the above-mentioned radiator being provided with a*N road radiating fin, its radiating fin length obtains according to following formula:
unit is millimeter;
Wherein, a is the radiating fin quantity on radiator body side, and N is the limit number on the positive gengon base of radiator body; L is the distance between the nearest end points in the base of the side at radiating fin and its place.
In general, the above technical scheme conceived by the present invention compared with prior art, can obtain following beneficial effect:
(1) IGBT radiator provided by the invention, side outer wall is for installing IGBT module, and the three-dimensional realizing IGBT module is installed; When a large amount of IGBT module parallel of needs uses, save installing space, reduce the volume shared by heat dissipation equipment;
(2) IGBT radiator provided by the invention, its side outer wall adopts shiny surface; Contact-making surface due to installation of heat radiator in IGBT module is also smooth flat, and therefore, smooth side outer wall makes the heat on the IGBT that contacts with it fully to exchange on radiator, improves radiating efficiency;
(3), in the preferred version of IGBT radiator provided by the invention, an end face of per pass radiating fin abuts with side inner walls is vertical, and another end face is unsettled; Make in same radiator body space, the radiating fin quantity that can arrange reaches maximum, thus increases heat dissipation channel quantity, strengthens radiating effect;
(4), in the preferred version of IGBT radiator provided by the invention, radiating fin is uniformly distributed, and reaches the object to the IGBT module Homogeneouslly-radiating being respectively attached to its side outer wall, can reduce the temperature difference between each IGBT module to the full extent;
(5) IGBT radiator provided by the invention, multiple IGBT module can be installed on same radiator body, and therefore share same air duct radiation, heat exchange is more concentrated, heat exchange amount can be controlled neatly by changing fan delivery, realizing better heat transfer effect; Improve the operation stability of equipment.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 " front-right-on " three-view diagram;
Fig. 2 is the embodiment of the present invention 1 " front-right-under " three-view diagram;
Fig. 3 is the equivalent circuit diagram of the embodiment of the present invention 1;
Fig. 4 be the radiating fin of the embodiment of the present invention 1 schematic diagram is set;
Fig. 5 is the position relationship schematic diagram in the embodiment of the present invention 2 between radiating fin and radiator body;
Fig. 6 is the position relationship schematic diagram in the embodiment of the present invention 3 between radiating fin and radiator body;
Fig. 7 is the position relationship schematic diagram in the embodiment of the present invention 4 between radiating fin and radiator body;
Fig. 8 is the position relationship schematic diagram in the embodiment of the present invention 5 between radiating fin and radiator body;
In all of the figs, identical Reference numeral is used for representing identical element or structure, wherein: 21-radiator body, 22-radiating fin, 23-IGBT module, 24-blower fan, 25-connect wire, 11-11 radiating fin, 12-12 radiating fin, 13-13 radiating fin, 14-14 radiating fin, 15-15 radiating fin, 16-16 radiating fin, 17-17 radiating fin, 18-18 radiating fin, 19-19 radiating fin.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each execution mode of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
IGBT radiator provided by the invention comprises radiator body 21 and radiating fin 22, the bottom surface of radiator body is fan mounting area, side outer wall is IGBT module installing zone, and the radiating fin 22 of projection is evenly distributed on the side inner walls of radiator body 21, and end face abuts with side inner walls.
Embodiment 1
Embodiment 1 is orthohexagonal radiator for radiator body base, specifically sets forth IGBT radiator provided by the invention; As shown in Figure 1, the inwall of radiator body 21 is evenly distributed with radiating fin 22 to the overall structure of embodiment 1; The side outer wall of radiator body 21 is IGBT module installing zone, in embodiment 1,6 IGBT module are arranged on 6 side outer walls of radiator body 21 respectively, IGBT module between each side is connected by wire 25, its equivalent circuit as shown in Figure 3, circuit is equivalent to six IGBT module parallel.
Figure 2 shows that " front-right-under " three-view diagram of embodiment 1, illustrate the installation site relation of radiator body 21 and blower fan 24 in the radiator that embodiment 1 provides; The sidewall of radiator body 21 has certain thickness, and blower fan 24 is placed in the bottom surface of radiator body 21, contacts with the sidewall base of radiator body 21.
In embodiment 1, radiator body 21 adopts the positive gengon structure of the hollow tube-shape of aluminum, the setting of radiating fin as shown in Figure 4, the setting of radiating fin in concrete illustrated embodiments 1 below;
In embodiment 1, the orthohexagonal length of side in radiator body base is 300mm, and each side is provided with 9 radiating fins parallel to each other, and numbering is 1-9 in turn, and an end face of each radiating fin all abuts with the lateral vertical at place; Center distance between radiating fin parallel to each other is 30mm; The length of each radiating fin obtains according to following formula:
unit is mm;
Wherein, N is the limit number of regular polygon, gets 6 in embodiment 1; L embodies radiating fin position residing on the side of radiator body, with the range marker between the end points that the base, side at radiating fin and its place is nearest; In embodiment 1,
For No. 1 and No. 9 radiating fins, L=30mm;
For No. 2 and No. 8 radiating fins, L=60mm;
For No. 3 and No. 7 radiating fins, L=90mm;
For No. 4 and No. 6 radiating fins, L=120mm;
For No. 5 radiating fins, L=150mm;
Above parameter has reserved allowance between radiating fin to ensure that manufacturing process can realize; Obtain corresponding radiating fin length according to above formula, if non-integer, then round downwards with simplified manufacturing technique.
The IGBT radiator that embodiment provides, the gap between 54 road radiating fins and between radiating fin and radiator body side forms heat dissipation channel; Under the effect of blower fan, realize the forced heat radiation to IGBT module;
The IGBT radiator that embodiment 1 provides, one end needs unsettled and non-touching radiating fin, makes the radiating fin increasing number that can distribute in the confined space, thus increases heat dissipation channel quantity, strengthens radiating effect; On the other hand, all radiating fins are uniformly distributed, and reach the object to each IGBT module Homogeneouslly-radiating, reduce the temperature difference between each IGBT module parallel with one another to the full extent.
Embodiment 2
The IGBT radiator that embodiment 2 provides, comprises radiator body and radiating fin, and radiator body is metal hexahedron structure, and the bottom surface of radiator body is fan mounting area, and side outer wall is IGBT module installing zone; Radiating fin is distributed in the side inner walls of radiator body 21; Be the setting of radiating fin with the difference of embodiment 1, the position between its radiating fin and radiator body as shown in Figure 5:
4 road radiating fins are distributed in radiator body, all arrange along the direction with horizontal plane, parallel with two sidewalls of radiator body; Wherein, No. 11 fins are main radiating fin, and the both ends of the surface of main radiating fin abut with the side inner walls of radiator body; No. 12 fins and No. 13 fins are time radiating fin, are distributed in the left side of main radiating fin; No. 14 fins are time radiating fin, are distributed in the right side of main radiating fin;
Gap between each radiating fin and between radiating fin and radiator body side forms heat dissipation channel; Blow to radiating fin during fan operation, realize forced heat-exchanging; The IGBT radiator that embodiment 2 provides, the quantity of its radiating fin can look radiating requirements to be increased or reduces, and the position of radiating fin also can adjust; Structure is simple, lower than embodiment 1 to the requirement of manufacturing process, is easy to realize.
Embodiment 3
The IGBT radiator that embodiment 3 provides, comprises radiator body and radiating fin, and radiator body is metal hexahedron structure, and the bottom surface of radiator body is fan mounting area, and side outer wall is IGBT module installing zone; Be the setting of radiating fin with the difference of embodiment 2, the secondary radiating fin of embodiment 3 with main radiating fin for axisymmetrical distributes, the position between its radiating fin and radiator body as shown in Figure 6:
5 road radiating fins are distributed in radiator body, all arrange along the direction with horizontal plane, and main radiating fin is parallel with 2 sidewalls of radiator body; Wherein, No. 15 fins are main radiating fin, and the both ends of the surface of main radiating fin abut with the side inner walls of radiator body; No. 16 fins and No. 17 fins are time radiating fin, are evenly distributed on the left side of main radiating fin; No. 18 fins and No. 19 fins are time radiating fin, are evenly distributed on the right side of main radiating fin; The both sides being distributed in No. 15 fins of No. 16 fins and No. 17 fins and No. 18 fins and No. 19 fin symmetries;
Gap between 5 road radiating fins and between each radiating fin and radiator body sidewall forms heat dissipation channel; Blow to radiating fin during fan operation, realize forced heat-exchanging; The IGBT radiator that embodiment 3 provides, the quantity of its radiating fin can look radiating requirements equally to be increased or reduces, and the position of radiating fin also can adjust; Simple with the same concrete structure of IGBT radiator that embodiment 2 provides, be easy to the feature realized, but heat dissipation channel is uniformly distributed, and reaches the effect to the IGBT module Homogeneouslly-radiating being arranged on each sidewall.
Embodiment 4
The IGBT radiator that embodiment 4 provides, comprises radiator body and radiating fin, and radiator body is metal hexahedron structure, and the bottom surface of radiator body is fan mounting area, and side outer wall is IGBT module installing zone; 5 road radiating fins are distributed in radiator body, and its axis direction is all along the direction with horizontal plane; Be the setting of radiating fin with the difference of embodiment 3, the end face of 5 road radiating fins of embodiment 4 all abuts with two madial walls of radiator body are vertical, and parallel to each other between radiating fin, the position between its radiating fin and radiator body as shown in Figure 7;
Gap between 5 road radiating fins and between each radiating fin and radiator body sidewall forms heat dissipation channel; Blow to radiating fin during fan operation, realize forced heat-exchanging; The IGBT radiator that embodiment 4 provides, the quantity of its radiating fin can look radiating requirements equally to be increased or reduces, and the position of radiating fin also can adjust; Simple with the same concrete structure of IGBT radiator that embodiment 3 provides, be easy to the feature realized, but the heat dissipation channel between radiating fin is more evenly distributed, make the radiating effect of the IGBT module being arranged on each sidewall evenly.
Embodiment 5
The IGBT radiator that embodiment 5 provides, comprises radiator body and radiating fin, and radiator body is metal hexahedron structure, and the bottom surface of radiator body is fan mounting area, and side outer wall is IGBT module installing zone;
Each sidewall of radiator body is provided with 2 roads radiating fin parallel to each other, and the axis direction of each radiating fin is all along the direction with horizontal plane; An end face of per pass radiating fin abuts with the side inner walls at its place is vertical, and another end face is unsettled; Be not in contact with each other between radiating fin, radiating fin length is adjustable in the non-touching scope of radiating fin; Position between radiating fin and radiator body as shown in Figure 8;
Gap between each radiating fin and between each radiating fin and radiator body sidewall forms heat dissipation channel; Blow to radiating fin during fan operation, realize forced heat-exchanging; The IGBT radiator that embodiment 5 provides, the quantity of its radiating fin can look radiating requirements equally to be increased or reduces, and the position of radiating fin also can adjust.
In the present invention, the radiating effect of IGBT radiator depends on radiating fin total surface area and its material and ventilation situation; When material and ventilation situation suitable, the surface area increasing radiating fin can effective improving radiating effect; Radiator provided by the invention can ensure the efficiently radiates heat of IGBT module; In preferred version of the present invention, increase radiating surface and heat dissipation channel, the heat that IGBT can be made to produce can conduct on larger area of dissipation, strengthens radiating effect further.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. an IGBT radiator, is characterized in that, comprises radiator body and at least two radiating fins; Described radiator body is the positive gengon structure of metal, and its side outer wall is shiny surface, as IGBT module installing zone; The bottom of described radiator body is as fan mounting area;
Described radiating fin is distributed in described radiator body, along arranging with the direction of horizontal plane; At least one end face of radiating fin abuts with the side inner walls of radiator body; Gap between radiating fin and between radiating fin and radiator body side forms heat dissipation channel.
2. IGBT radiator as claimed in claim 1, is characterized in that, be provided with a main radiating fin and at least one radiating fin in described radiator body; Two end faces of described main radiating fin abut with radiator body side inner walls, and main radiating fin is parallel with at least one sidewall of radiator body, the distribution parallel with main radiating fin of secondary radiating fin.
3. IGBT radiator as claimed in claim 1, is characterized in that, be provided with a main radiating fin and at least one radiating fin in described radiator body; Two end faces of described main radiating fin abut with the side inner walls of radiator body is vertical, the distribution parallel with main radiating fin of secondary radiating fin.
4. IGBT radiator as claimed in claim 1, is characterized in that, be provided with multiple tracks radiating fin in described radiator body, and an end face of per pass radiating fin abuts with side inner walls is vertical, and another end face is unsettled; Be not in contact with each other between described radiating fin, radiating fin adjustable length.
5. IGBT radiator as claimed in claim 4, is characterized in that, each side of described radiator body is equipped with the parallel to each other and equally distributed radiating fin in a road; One end of radiating fin on each side abuts with this side inner walls is vertical, and the other end is unsettled; Wherein, a is not less than 1.
6. IGBT radiator as claimed in claim 5, it is characterized in that, described radiator body is hexahedron, each side inner walls of radiator body is equipped with the parallel to each other and equally distributed radiating fin in 9 roads; One end of radiating fin on each side abuts with this side inner walls is vertical, and the other end is unsettled.
7. the IGBT radiator as described in claim 5 or 6, is characterized in that, described radiating fin length obtains according to following formula:
unit is mm;
Wherein N is the limit number on the positive gengon base of described radiator body; L is the distance between the nearest end points in the base of the side at radiating fin and its place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510319222.4A CN105023891A (en) | 2015-06-11 | 2015-06-11 | An igbt radiator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510319222.4A CN105023891A (en) | 2015-06-11 | 2015-06-11 | An igbt radiator |
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| CN105023891A true CN105023891A (en) | 2015-11-04 |
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| CN201510319222.4A Pending CN105023891A (en) | 2015-06-11 | 2015-06-11 | An igbt radiator |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329055A (en) * | 2007-06-22 | 2008-12-24 | 富准精密工业(深圳)有限公司 | Heat radiator |
| CN201194462Y (en) * | 2008-05-13 | 2009-02-11 | 林龙辉 | Heat radiator for acoustics |
| CN101373064A (en) * | 2007-08-24 | 2009-02-25 | 富准精密工业(深圳)有限公司 | LED light fitting |
| CN101900258A (en) * | 2009-05-27 | 2010-12-01 | 光磊科技股份有限公司 | LED (Light-Emitting Diode) light and polygonal heat sink structure thereof |
| US20120061067A1 (en) * | 2010-09-15 | 2012-03-15 | Denso Corporation | Heat sink |
-
2015
- 2015-06-11 CN CN201510319222.4A patent/CN105023891A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329055A (en) * | 2007-06-22 | 2008-12-24 | 富准精密工业(深圳)有限公司 | Heat radiator |
| CN101373064A (en) * | 2007-08-24 | 2009-02-25 | 富准精密工业(深圳)有限公司 | LED light fitting |
| CN201194462Y (en) * | 2008-05-13 | 2009-02-11 | 林龙辉 | Heat radiator for acoustics |
| CN101900258A (en) * | 2009-05-27 | 2010-12-01 | 光磊科技股份有限公司 | LED (Light-Emitting Diode) light and polygonal heat sink structure thereof |
| US20120061067A1 (en) * | 2010-09-15 | 2012-03-15 | Denso Corporation | Heat sink |
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Application publication date: 20151104 |