CN2842735Y - Flatboard type water-cooling radiator of insulating-grid two-pole transistor - Google Patents
Flatboard type water-cooling radiator of insulating-grid two-pole transistor Download PDFInfo
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- CN2842735Y CN2842735Y CNU2005201295232U CN200520129523U CN2842735Y CN 2842735 Y CN2842735 Y CN 2842735Y CN U2005201295232 U CNU2005201295232 U CN U2005201295232U CN 200520129523 U CN200520129523 U CN 200520129523U CN 2842735 Y CN2842735 Y CN 2842735Y
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Abstract
The utility model relates to a flat board type water-cooling radiator of an insulating-grid two-pole transistor, which comprises a cooling main body (3) and a sealing plate (1), wherein the inside of the cooling main body (3) is provided with a water channel structure, a water inlet (5) and a water outlet (10); the water inlet (5) and the water outlet (10) are communicated with the water channel structure, wherein the water channel structure is a multi-channel snake-shaped structure (7). The flat board type water-cooling radiator of an insulating-grid two-pole transistor, which is provided by the utility model, effectively reduces the flow resistance of coolant in the water channel, and solves the problem of the coolant reflux. Because the area of the heat exposure wall of the cooling main body is large, the heat exchange between the heat radiator and the insulating-grid two-pole transistor module is evener. Thus, the flat board type water-cooling radiator of an insulating-grid two-pole transistor has high cooling efficiency, and can ensure the normal operation of the insulating-grid two-pole transistor.
Description
Technical field
The utility model is the flat water-filled radiator about a kind of igbt (IGBT), is applicable to the electronic power convertor that uses the IGBT element, is particularly useful for hybrid power and electric automobile current transformer and other mobile device current transformers.
Background technology
At present, generally use high-power insulated gate bipolar transistor (IGBT) element on the high-power converter.IGBT can produce power loss when operation, produce a large amount of heats simultaneously, causes that temperature raises, thereby influences life-span and the operational reliability of IGBT.So cooling system that need be able to dispel the heat timely and effectively.
The IGBT cooling system can adopt air-cooled, oil cooling and three kinds of radiating modes of water-cooled, and air cooling way occupies the majority at present.But because the specific heat of gas is little, adopts air-cooled IGBT cooling system, have that radiating efficiency is low, the radiator volume big, the shortcoming of poor cooling performance,, influence the operate as normal of IGBT through the generation IGBT of regular meeting superheating phenomenon.Adopt the IGBT cooling system of oil cooling, because the viscosity of machine oil is bigger, mobile relatively poor, circulation rate is slow, has the big problem of the pressure loss, the supporting more powerful lubricating oil pump of the need that have; For preventing the leakage pollution of machine oil, the equipment air-proof condition is required height simultaneously, thereby improved the cost of whole cooling system.Also have minority to use the mode of water-filled radiator, but easily produce phenomenons such as the pressure loss is big, slough, flow velocity inequality, backflow, radiating effect is very inhomogeneous.
CN 2696126Y discloses a kind of IGBT labyrinth type water-filled radiator, and this radiator adopts modularized design, and the modular unit internal structure is adopted the labyrinth type design, can improve radiating efficiency and reduce the volume and weight of cooling system.But this patent has adopted mazy structure, and promptly water channel designs for labyrinth type, makes cooling fluid repeatedly change flow direction, so the pressure loss is big, and current easily earlier from from water inlet at a distance water channel flow through, make the water channel of maze-type structure be prone to the slough, cause heat radiation uneven.
US 005631821 discloses a kind of cooling system that is used for electric vehicle inverter, the water channel of the cooling system fin of this patent is straight water channel, the pressure loss is less, and the water channel two ends are main to be gone out/and go into water channel tank lateral wall and have inclination angle [theta], promptly main go out/go into the water channel tank near go out/water inlet end internal diameter is big, this water channel can make cooling fluid flow velocity when entering each independent cooling water channel more even.But on the one hand, make flowing to of cooling fluid restive, easily produce cooling fluid and flow through and do not flow behind the water channel, on the contrary the backflow phenomenon that flows round about to water outlet end because it is straight channel structure; Because its heat radiation water channel perpendicular to the main water channel of coming in and going out, need overcome resistance and carry out vertical break-in during liquid circulation, the two comprehensively causes fin not smooth near water inlet part liquid circulation easily, causes heat radiation uneven on the other hand.
The utility model content
The purpose of this utility model is the shortcoming that overcomes the low and cooling uniformity difference of the existing cooling effectiveness of igbt labyrinth type water-filled radiator in the prior art, and a kind of flat water-filled radiator of igbt of forcing even cooling capacity that has is provided.
The utility model provides a kind of igbt flat water-filled radiator, this water-filled radiator comprises cools body 3 and sealing plate 1, be provided with channel structure in the described cools body 3, and water inlet 5 that communicates with channel structure and delivery port 10, it is characterized in that described channel structure is a multichannel serpentine configuration 7.
The flat water-filled radiator of IGBT provided by the utility model, owing to select the bigger water of specific heat as cooling fluid, and the water route reasonable in design; Compare with the radiator of prior art, effectively reduce the flow resistance of cooling fluid in the water route on the one hand, and solved the problem that cooling fluid refluxes; The velocity ratio of current is more even in each water channel on the other hand, and the area of cools body heated walls is bigger, thereby makes heat exchange more even, so the cooling effectiveness height.Based on above reason, can adopt more low power outer water pump to finish the circulation of cooling fluid.The flat water-filled radiator of IGBT provided by the utility model when reducing cost, alleviating whole cooling system weight, dwindling whole cooling system volume, can also guarantee the normal operation of IGBT.
Description of drawings
Fig. 1 is IGBT and the cools body and the sealing plate installation site structural representation of the flat water-filled radiator of the utility model IGBT;
Fig. 2 is the front view of cools body and IGBT installation site;
Fig. 3 is the vertical view of cools body and IGBT installation site;
Fig. 4 is the structure chart of the cools body of embodiment 1;
Fig. 5 is the circulation schematic diagram of cooling fluid;
Fig. 6 is the structure chart of the cools body of embodiment 2.
Among the figure:
1, sealing plate 10, delivery port
2, sealing plate fixing hole 11, IGBT module
3, cools body 12, module fixing hole
4, cools body fixing hole 13, heat-conducting silicone grease
5, water inlet 14, cools body side
6, main inlet channel 15, the nearly water inlet end of main inlet channel lateral surface
7, serpentine waterways (many) 16, main inlet channel water inlet end far away lateral surface
8, boss 17, main water outlet water outlet end lateral surface far away
9, main water outlet 18, the nearly water outlet end lateral surface of main water outlet
Embodiment
As shown in Figure 1 to Figure 3, according to the flat water-filled radiator of a kind of igbt provided by the utility model, this water-filled radiator comprises that cools body 3 and sealing plate 1 described cools body 3 inboards are provided with channel structure, and water inlet 5 that communicates with channel structure and delivery port 10, it is characterized in that described channel structure is a multichannel serpentine configuration 7.The bar number of described serpentine waterways 7 can be the 5-30 bar, preferred 8-15 bar; The width of described serpentine waterways 7 can be the 5-15 millimeter, preferred 6-10 millimeter, and the degree of depth of described serpentine waterways 7 can be the 5-20 millimeter, preferred 10-18 millimeter.
Described serpentine waterways structure 7 two ends can be provided with main inlet channel 6 and main water outlet 9 respectively; Main inlet channel 6 is connected with an end of water inlet 5 and serpentine waterways 7, and main water outlet 9 is connected with the other end of delivery port 10 with serpentine waterways 7.The width of described main inlet channel 6 or main water outlet 9 can be the 15-50 millimeter, preferred 20-40 millimeter, and the degree of depth can be the 5-20 millimeter, preferred 10-18 millimeter.Described main inlet channel 6 nearly water inlet end lateral surfaces 15 are α with cools body side 14 angles and described main water outlet 9 nearly water outlet end lateral surfaces 18 with cools body side 14 angles; Described main inlet channel 6 water inlet end lateral surfaces 16 far away are β with cools body side 14 angles and described main water outlet 9 water outlet end lateral surfaces 17 far away with cools body side 14 angles; α≤30 °, preferred 10 °≤α≤20 °; β≤15 °, preferred 1 °≤β≤10 °.Angle α can play rectified action, prevents to form near water in-out port the slough.Angle β is the pressure of each serpentine waterways evenly, thereby improve the flow velocity near the water in the serpentine waterways of water inlet end.
The flat water-filled radiator of described igbt (IGBT) also comprises insulated gate bipolar transistor module 11, and described insulated gate bipolar transistor module is fixed on the cools body 3.Described insulated gate bipolar transistor module is as well known to those skilled in the art, is a kind of crucial power semiconductor device of power electronic system, can produce power loss during operation, produces a large amount of heats simultaneously.The heated walls of described cools body is as well known to those skilled in the art, refers to the surface that cools body and IGBT module directly contact; The area of described cools body heated walls refers to that the cools body heated walls contacts the area of cooling fluid.
The heat efficiency method of testing of described radiator can adopt the known Fluent software of those skilled in the art, k-e turbulence model, SMPISO algorithm, upwind difference format analysis.
Below in conjunction with embodiment, the utility model is described further.
Embodiment 1
Present embodiment illustrates the flat water-filled radiator of IGBT provided by the utility model.
As Fig. 1, shown in Figure 4, the radiator of present embodiment comprises cools body 3 and sealing plate 1, and described cools body 3 inboards are provided with 13 serpentine waterways 7, and width is 6 millimeters, and the degree of depth is 10 millimeters.Described main inlet channel 6 width are 40 millimeters, and the degree of depth is 18 millimeters.The width of main water outlet 9 is 40 millimeters, and the degree of depth is 18 millimeters.Described main inlet channel 6 nearly water inlet end lateral surfaces 15 are α with cools body side 14 angles and described main water outlet 9 nearly water outlet end lateral surfaces 18 with cools body side 14 angles; Described main inlet channel 6 water inlet end lateral surfaces 16 far away are β with cools body side 14 angles and described main water outlet 9 water outlet end lateral surfaces 17 far away with cools body side 14 angles; α=0 °; β=0 °.As Fig. 2, shown in Figure 3 IGBT module 11 usefulness securing members such as screw etc. are installed on the installed surface of cools body 3, use heat-conducting silicone grease 13 between IGBT module and the radiator, to strengthen heat transference efficiency, its heat-delivery surface and cools body heated walls surface are adjacent to, and the heat that IGBT inside is produced reaches in the cools body of double as IGBT firm banking.As shown in Figure 1 to Figure 3,, connect with screw, and on the contact surface of sealing plate 1 and cools body 3, be coated with, make it have enough sealing effectivenesss and mechanical strength with fluid sealant with the fixing hole 4 on fixing hole on the sealing plate 12 and the cools body 3.Go between water swivel, water out adapter and the radiator to adopt to be threaded, be coated with fluid sealant during connection.
The course of work to the flat water-filled radiator of IGBT of the present utility model describes below.
In the serpentine waterways structure shown in Fig. 5, cooling fluid flows into main inlet channel 6 through shunting through water inlet 5, change flow direction along many serpentine waterways 7, flow into again that main water outlet 9 gathers after delivery port 10 flows out, it is even to reach each branch road flow rate of water flow like this, flow to and stablize, temperature gradient is even, the heat exchange effect of sufficient.
Embodiment 2
Present embodiment illustrates the flat water-filled radiator of IGBT provided by the utility model.
As different from Example 1, described cools body 3 inboards are provided with 15 serpentine waterways 7, and width is 10 millimeters, and the degree of depth is 18 millimeters.Described main inlet channel 6 width are 25 millimeters, and the degree of depth is 18 millimeters.The width of main water outlet 9 is 25 millimeters, and the degree of depth is 18 millimeters. As shown in Figure 6, α=13 °; β=2.5 °.
IGBT water-filled radiator to embodiment 1-2 carries out the radiating effect test.The condition of test is, 3 IGBT are installed on the cools body heated walls, and the caloric value of single IGBT is 1790 watts, cooling water inlet flow velocity 1.2 meter per seconds, and outlet pressure is 1 standard atmospheric pressure, the material of cools body is an aluminium.Gained The data Fluent software, the k-e turbulence model, the SMPISO algorithm, the upwind difference format analysis, convergence is 0.001.
The cooling effect of above-mentioned radiator sees Table 1.
Table 1
| Parameter | Embodiment 1 | Embodiment 2 |
| Inlet area (10 -5Square metre) | 8.76 | 8.76 |
| Inlet flow rate (Kilograms Per Second) | 0.105 | 0.105 |
| Inlet mean temperature (K) | 301.0 | 301.0 |
| Outlet mean temperature (K) | 306.0 | 308.0 |
| Inlet average pressure (handkerchief) | 102825 | 102405 |
| Outlet average pressure (handkerchief) | 101325 | 101325 |
| Inlet and outlet pressure poor (handkerchief) | 1500 | 1080 |
| The area of cools body heated walls (square metre) | 0.0860 | 0.0850 |
| The mean temperature of cools body heated walls (K) | 321.2 | 317.5 |
As can be seen from Table 1, the inlet and outlet pressure difference of embodiment 2 is more lower slightly than embodiment's 1, illustrates that the circulation resistance of embodiment 2 is littler; Under the essentially identical situation of the area of cools body heated walls, the outlet mean temperature of embodiment 2 is than the high 2K of embodiment 1, illustrates that the heat that embodiment 2 taken away is more, and cooling effect is better; The mean temperature of the cools body heated walls of embodiment 2 illustrates rectified action and the evenly effect of each serpentine waterways pressure of angle β of angle α among the embodiment 2 than the low 3.7K of embodiment 1, can further improve the radiating efficiency of radiator.In addition, compare with existing labyrinth type water-filled radiator, the area of the cools body heated walls of the IGBT water-filled radiator that the utility model provides is big, and the mean temperature of test result cools body heated walls is low, good cooling results; The required inlet pressure of the IGBT water-filled radiator that the utility model provides is very little, be approximately existing labyrinth type water-filled radiator will reach same cooling effect the time required inlet pressure 1/9th, show that cooling fluid circulation resistance in the utility model radiator is little, the pressure loss that is radiator that the utility model provides is little, thereby can use the very little external circulating water pump of power, reduce the volume and weight of entire heat dissipation system, finally reduced cost.
Claims (11)
1. flat water-filled radiator of igbt, this water-filled radiator comprises cools body (3) and sealing plate (1), described cools body is provided with channel structure in (3), and water inlet that communicates with channel structure (5) and delivery port (10), it is characterized in that described channel structure is multichannel serpentine configuration (7).
2. radiator according to claim 1, wherein, the bar number of described serpentine waterways (7) is the 5-30 bar.
3. radiator according to claim 2, wherein, the bar number of described serpentine waterways (7) is the 8-15 bar.
4. radiator according to claim 1, wherein, the width of described each serpentine waterways (7) is the 5-15 millimeter, the degree of depth is the 5-20 millimeter.
5. radiator according to claim 4, wherein, the width of described each serpentine waterways (7) is the 6-10 millimeter, the degree of depth is the 10-18 millimeter.
6. radiator according to claim 1, wherein, described serpentine waterways (7) structure two ends are provided with main inlet channel (6) and main water outlet (9) respectively; Main inlet channel (6) is connected with the end of water inlet (5) with serpentine waterways (7), and main water outlet (9) is connected with the other end of delivery port (10) with serpentine waterways (7).
7. radiator according to claim 6, wherein, the width of described main inlet channel (6) or main water outlet (9) is the 15-50 millimeter, the degree of depth is the 5-20 millimeter.
8. radiator according to claim 7, wherein, the width of described main inlet channel (6) or main water outlet (9) is the 20-40 millimeter, the degree of depth is the 10-18 millimeter.
9. radiator according to claim 7, wherein, the nearly water inlet end lateral surface (15) of described main inlet channel (6) is α with cools body side (14) angle and the nearly water outlet end lateral surface (18) of described main water outlet (9) with cools body side (14) angle; Described main inlet channel (6) water inlet end lateral surface (16) far away is β with cools body side (14) angle and described main water outlet (9) water outlet end lateral surface (17) far away with cools body side (14) angle; α≤30 °; β≤15 °.
10. radiator according to claim 9, wherein, described angle α, β are 10 °≤α≤20 °; 1 °≤β≤10 °.
11. radiator according to claim 1, wherein, this radiator also comprises insulated gate bipolar transistor module, and described insulated gate bipolar transistor module is fixed on the cools body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201295232U CN2842735Y (en) | 2005-10-24 | 2005-10-24 | Flatboard type water-cooling radiator of insulating-grid two-pole transistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201295232U CN2842735Y (en) | 2005-10-24 | 2005-10-24 | Flatboard type water-cooling radiator of insulating-grid two-pole transistor |
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| Publication Number | Publication Date |
|---|---|
| CN2842735Y true CN2842735Y (en) | 2006-11-29 |
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|---|---|---|---|
| CNU2005201295232U Expired - Lifetime CN2842735Y (en) | 2005-10-24 | 2005-10-24 | Flatboard type water-cooling radiator of insulating-grid two-pole transistor |
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| CN102208381A (en) * | 2011-03-31 | 2011-10-05 | 上海磁浮交通发展有限公司 | Circulation cooling pipeline of three-level power module of integrated gate commutated thyristor (IGCT) |
| CN103078471A (en) * | 2011-10-26 | 2013-05-01 | 中国北车股份有限公司大连电力牵引研发中心 | Power module and current converter |
| CN103294078A (en) * | 2012-02-22 | 2013-09-11 | 上海微电子装备有限公司 | Modularized temperature control device |
| CN103607871A (en) * | 2013-11-29 | 2014-02-26 | 北京经纬恒润科技有限公司 | Cooling water way for power controller and controller shell |
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| CN108260331A (en) * | 2018-01-19 | 2018-07-06 | 合肥中科离子医学技术装备有限公司 | It is a kind of to carry efficient radiator using double-side efficient water-cooling spiral structure |
| JP2018152550A (en) * | 2016-12-21 | 2018-09-27 | レオナルド・ソチエタ・ペル・アツィオーニＬＥＯＮＡＲＤＯ Ｓ．ｐ．Ａ． | Passive cooling system using dual-phase fluid, particularly for cooling electronic apparatus, such as avionic apparatus |
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- 2005-10-24 CN CNU2005201295232U patent/CN2842735Y/en not_active Expired - Lifetime
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| CN102208381B (en) * | 2011-03-31 | 2013-03-06 | 上海磁浮交通发展有限公司 | Circulation cooling pipeline of three-level power module of integrated gate commutated thyristor (IGCT) |
| CN102208381A (en) * | 2011-03-31 | 2011-10-05 | 上海磁浮交通发展有限公司 | Circulation cooling pipeline of three-level power module of integrated gate commutated thyristor (IGCT) |
| CN103078471A (en) * | 2011-10-26 | 2013-05-01 | 中国北车股份有限公司大连电力牵引研发中心 | Power module and current converter |
| CN103078471B (en) * | 2011-10-26 | 2015-05-13 | 中国北车股份有限公司 | Power module and current converter |
| CN103294078A (en) * | 2012-02-22 | 2013-09-11 | 上海微电子装备有限公司 | Modularized temperature control device |
| CN103294078B (en) * | 2012-02-22 | 2015-06-17 | 上海微电子装备有限公司 | Modularized temperature control device |
| CN110131883A (en) * | 2012-05-02 | 2019-08-16 | 韦巴斯托股份公司 | The method of heating device and the operation heating device for vehicle |
| CN104272054A (en) * | 2012-05-02 | 2015-01-07 | 韦巴斯托股份公司 | Heating device for a vehicle and method for operating said heating device |
| CN110131883B (en) * | 2012-05-02 | 2021-05-04 | 韦巴斯托股份公司 | Heating device for a vehicle and method for operating the heating device |
| US9895957B2 (en) | 2012-05-02 | 2018-02-20 | Webasto SE | Heating device for a vehicle and method of operating the heating device |
| CN104272054B (en) * | 2012-05-02 | 2020-10-09 | 韦巴斯托股份公司 | Heating device for a vehicle and method for operating the heating device |
| CN103607871A (en) * | 2013-11-29 | 2014-02-26 | 北京经纬恒润科技有限公司 | Cooling water way for power controller and controller shell |
| CN105578838A (en) * | 2014-10-16 | 2016-05-11 | 中山大洋电机股份有限公司 | Motor controller |
| CN105578838B (en) * | 2014-10-16 | 2018-01-05 | 中山大洋电机股份有限公司 | A kind of electric machine controller |
| JP2018152550A (en) * | 2016-12-21 | 2018-09-27 | レオナルド・ソチエタ・ペル・アツィオーニＬＥＯＮＡＲＤＯ Ｓ．ｐ．Ａ． | Passive cooling system using dual-phase fluid, particularly for cooling electronic apparatus, such as avionic apparatus |
| JP7191511B2 (en) | 2016-12-21 | 2022-12-19 | レオナルド・ソチエタ・ペル・アツィオーニ | Two-phase fluid passive cooling system, in particular two-phase fluid passive cooling system for cooling electronic equipment such as avionics |
| CN108260331A (en) * | 2018-01-19 | 2018-07-06 | 合肥中科离子医学技术装备有限公司 | It is a kind of to carry efficient radiator using double-side efficient water-cooling spiral structure |
| CN108133920A (en) * | 2018-02-09 | 2018-06-08 | 苏州绿控新能源科技有限公司 | A kind of cooling water channel structure for being applicable in Pin-Fin power semiconductor modulars |
| CN108133920B (en) * | 2018-02-09 | 2023-10-24 | 苏州绿控新能源科技有限公司 | Cooling water channel structure suitable for Pin-Fin power semiconductor module |
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