CN212353642U - Liquid cooling type integrated power electronic unit - Google Patents
Liquid cooling type integrated power electronic unit Download PDFInfo
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- CN212353642U CN212353642U CN202021850701.1U CN202021850701U CN212353642U CN 212353642 U CN212353642 U CN 212353642U CN 202021850701 U CN202021850701 U CN 202021850701U CN 212353642 U CN212353642 U CN 212353642U
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Abstract
A liquid cooling type integrated power electronic unit, in particular to a liquid cooling technology of an integrated power unit integrating a plurality of load components such as a hybrid electric vehicle motor controller, an oil pump motor controller and the like. The whole radiator is arranged in the middle of the controller, the radiator can be arranged on two sides, and the double-motor control module and the power unit are respectively arranged on the radiator. The main body of the radiator comprises a cooling liquid flowing groove, a cover plate, a liquid inlet and a liquid outlet, and a sealing structure between the cover plate and the radiator, wherein the liquid flowing groove is mainly characterized in that the liquid flowing groove is an elliptical groove, fins are embedded into the elliptical groove respectively to form an S-shaped rotary water channel, a plurality of sections of arc-shaped fins are embedded into the groove respectively to reduce flow resistance, vortex is avoided, and meanwhile, slopes are added at the positions of the water inlet and the water outlet to reduce the flow resistance. The liquid cooling radiator structure disclosed by the invention has the characteristics of small flow resistance, large heat capacity and high liquid flow speed, and improves the radiating efficiency.
Description
Technical Field
The invention belongs to the field of hybrid power all-in-one controllers of new energy automobiles, and particularly relates to a liquid cooling technology for an integrated power unit integrating multiple power units such as a hybrid power automobile motor controller, a voltage conversion unit and the like.
Background
The new energy automobile is based on the major upgrade and transformation of a driving technology, a controller integrates a torque strategy of the whole automobile, required torque is converted into three-phase power required by a motor, and the motor is driven, so that the running of the automobile is realized. The traction converter device of the alternating current transmission electric locomotive is developing towards the directions of high power, high integration, light weight and the like, so that the dissipation power density of a system is increased sharply, and the problem of heat dissipation is increasingly prominent. The IGBT module is a core part of the main converter, and the analysis of the cooling performance of a radiator is necessary.
Generally, the radiator adopts a structure of radiating fins and a radiating fan, and the radiator can also have a better radiating effect through an internal and external structure with reasonable design. However, the air cooling method is often used to dissipate heat in some occasions with high requirements for heat dissipation, and the heat dissipation effect is not satisfactory.
In the existing improvement technology, a method for cooling an electronic device by partially adopting a liquid cooling technology is also provided. Usually, a structure of a closed pipeline is adopted, because the space inside the controller is limited, the overall layout needs to be considered for the interface, and in addition, the volume of the pipeline per se is considered, so that the heat dissipation design is complicated, the heat dissipation device cannot be fully utilized, and the heat dissipation effect is poor.
The integrated level of the whole power integrated control unit of the locomotive is higher, so the heat productivity is larger, and due to the problem of the arrangement structure of the power unit, the heat radiation is difficult by utilizing the traditional heat radiation mode.
Disclosure of Invention
The present application is directed to the above problem, and its object is to provide a liquid cooling heat dissipation device with reasonable structure design, high heat dissipation efficiency, large heat capacity and fast liquid flow rate.
In order to achieve the purpose, the invention adopts the following technical scheme: a liquid cooling type integrated power electronic unit comprises a load component and a liquid cooling radiator, wherein the load component drives a motor controller, an oil pump motor controller and a DC-DC converter. The liquid cooling radiator is arranged between the load parts and mainly comprises a radiator main body, a water inlet, a water outlet, a water channel and a cover plate.
The water inlet and the water outlet are designed on the main body and communicated through a water channel, and the water channel is packaged through the main body and the cover plate and sealed through a sealing structure to prevent liquid from contacting with a load part. The cover plate is made of aluminum materials so as to achieve light weight and improve the heat capacity of the whole radiator. The sealing structure is in a sealing strip form and mainly comprises a sealing groove designed on a main body, the sealing strip is clamped into the sealing groove and is arranged above the sealing strip through a cover plate, and the sealing structure is tightened through a bolt to realize sealing. The sealing strip is a PVC material or a rubber material with sealing performance and temperature resistance, and the cross section of the sealing strip can be circular.
The water channel is a liquid flowing groove and adopts an S-shaped design to increase the coverage area of the flow channel. The S-shaped water channel comprises fins, and the fins are designed into multiple layers and used for increasing the heat dissipation area of the flow channel.
Furthermore, the wavy structure is added to the position, concentrated in load arrangement, of the fin, and the wavy structure designed by the fin integrates transverse and longitudinal radian structures. The concentrated part of the load is positioned at the water inlet 1/4 and the water outlet 1/4, and one side of the position is provided with a driving motor controller and the other side is provided with an oil pump motor controller.
The water channel adopts the inclined design at the water inlet and the water outlet, so that the resistance of the port end is reduced, and the formation of vortex is prevented.
In the above liquid-cooled integrated power electronic unit, the radiator main body and the cover plate are provided with mounting holes for mounting the load component. The driving motor controller and the oil pump controller are respectively arranged on two sides of the liquid cooling radiator so as to be favorable for heat dissipation.
The following technical solutions further define or optimize the present application.
Drawings
Fig. 1 is a schematic structural diagram of a liquid-cooled integrated power electronic unit according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a heat sink structure of a liquid-cooled integrated power electronic unit according to the present invention.
Fig. 3 is a schematic diagram of a water channel structure of the liquid-cooled integrated power electronic unit according to the present invention.
Fig. 4 is a schematic view of a water channel part structure of the liquid cooling type integrated power electronic unit provided by the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
The structural schematic diagram of an embodiment of the liquid-cooled integrated power electronic unit provided by the present invention, as shown in fig. 1, includes a load component 2 and a liquid-cooled heat sink 1, where the load component 2 includes a driving motor controller 14, an oil pump motor controller 11, and the like. The liquid-cooled radiator 1 is arranged between the load parts 2, and mainly includes a radiator main body 10, a water inlet 17, a water outlet 18, a water channel 12, and a cover plate 16. As shown in fig. 3, the water inlet 17 and the water outlet 18 are formed on the radiator body 10, and are communicated with each other through the water passage 12, and a water inlet nozzle 45 and a water outlet nozzle 46 are installed on the exterior. The water inlet nozzle 45 and the water outlet nozzle 46 are fixed by the radiator body 10 for connecting an external circulating water pipe (not shown).
The radiator main body 10 and the cover plate 16 are provided with mounting holes 19, and the load part 2 is fixed on the liquid cooling radiator 1 through the mounting holes 19 and is locked and fixed through the bolts 15. The driving motor controller 14 and the oil pump motor controller 11 are respectively arranged on two sides of the liquid cooling radiator 1 so as to be beneficial to heat dissipation.
As shown in fig. 2, which is a schematic view of the structure of the heat sink of the liquid cooling integrated power electronic unit provided by the present invention, the water channel 12 of the heat sink is an oval groove for liquid to flow, and an S-shaped design (as shown in fig. 3) is adopted to increase the coverage area of the flow channel. The S-shaped water channel 12 includes fins designed to be a 3-layer structure for increasing the heat dissipation area of the flow channel.
The water channel 12 is enclosed by the body and the cover plate 16 and sealed by the sealing structure 3, preventing liquid from coming into contact with the load part 2. The cover plate 16 is made of aluminum to achieve light weight and to improve heat capacity of the entire liquid-cooled heat sink 1. The sealing structure 3 is in the form of a sealing strip 25, and mainly comprises a sealing groove 26 designed on the radiator main body 10, wherein the sealing strip 25 is clamped in the sealing groove 26, and the sealing is realized by pressing the cover plate 16. The sealing strip 25 is made of PVC material or rubber material with sealing performance and temperature resistance, and the cross section of the sealing strip is designed to be circular.
Fig. 4 is a partial structural view of a water channel 12 of a liquid cooling type integrated power electronic unit according to the present invention. The water channel 12 is designed to be an inclined structure 12a at the positions of the water inlet 17 and the water outlet 18 so as to reduce resistance at the opening end and prevent formation of vortex.
The wavy structures 12b are added to the positions of the fins of the water channels 12 where loads are concentrated, and the wavy structures 12b designed by the fins are integrated with transverse and longitudinal corrugated structures. The concentrated part of the load is positioned at the water inlet and the water outlet (17, 18) 1/4, and one side of the position is provided with a driving motor controller 14 and one side is provided with an oil pump motor controller 11.
The above examples are only for illustrating the essence of the present invention, but not for limiting the present invention. Any modifications, simplifications, or other alternatives made without departing from the principles of the invention are intended to be included within the scope of the invention.
The present invention is not concerned with parts which are the same as or can be implemented using prior art techniques.
Claims (10)
1. The utility model provides a liquid cooling type integrated form power electronic unit, includes load part and liquid cooling radiator, load part drive machine controller, oil pump machine controller, DC-DC converter, the liquid cooling radiator arrange in between the load part, its characterized in that, the liquid cooling radiator includes radiator main part, water inlet, delivery port and water course, the water course adopts the design of S type to increase the runner coverage area.
2. The liquid-cooled integrated power electronic unit of claim 1, wherein the S-shaped water channel comprises fins designed in multiple layers for increasing heat dissipation area of the flow channel.
3. The liquid-cooled integrated power electronic unit of claim 2, wherein the fins add a wave-like structure at a location where load placement is concentrated.
4. The liquid-cooled integrated power electronic unit of claim 3, wherein the water inlet and the water outlet are designed to be inclined to reduce resistance of the mouth end and prevent formation of eddy currents.
5. A liquid-cooled integrated power electronic unit according to any of claims 1 to 4, comprising a cover plate of aluminium construction.
6. The liquid-cooled integrated power electronic unit of claim 5, wherein the cover plate and the body enclose the water channel therein, and the body and the cover plate are sealed by a sealing structure.
7. The liquid-cooled integrated power electronic unit of claim 6, wherein the sealing structure is in the form of a sealing strip, and the body includes a sealing groove, the sealing strip being snapped into the sealing groove and sealed by pressing the cover plate.
8. The liquid-cooled integrated power electronic unit of claim 7, wherein the sealing strip is made of a PVC material or a rubber material with sealing property and temperature resistance.
9. The liquid-cooled integrated power electronic unit of claim 6, wherein the heat sink body and the cover plate are provided with mounting holes for mounting the load components.
10. The liquid-cooled integrated power electronic unit of claim 9, wherein the drive motor controller and the oil pump controller are disposed on opposite sides of the liquid-cooled heat sink, respectively, in a manner that facilitates heat dissipation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021850701.1U CN212353642U (en) | 2020-08-31 | 2020-08-31 | Liquid cooling type integrated power electronic unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021850701.1U CN212353642U (en) | 2020-08-31 | 2020-08-31 | Liquid cooling type integrated power electronic unit |
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| CN212353642U true CN212353642U (en) | 2021-01-15 |
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| CN202021850701.1U Active CN212353642U (en) | 2020-08-31 | 2020-08-31 | Liquid cooling type integrated power electronic unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114103655A (en) * | 2020-08-31 | 2022-03-01 | 浙江福爱电子有限公司 | Liquid cooling type integrated power electronic unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114103655A (en) * | 2020-08-31 | 2022-03-01 | 浙江福爱电子有限公司 | Liquid cooling type integrated power electronic unit |
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