CN110634823A - Segmented flow blocking type heat dissipation structure of motor controller and heat dissipation method thereof - Google Patents
Segmented flow blocking type heat dissipation structure of motor controller and heat dissipation method thereof Download PDFInfo
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- CN110634823A CN110634823A CN201910845185.9A CN201910845185A CN110634823A CN 110634823 A CN110634823 A CN 110634823A CN 201910845185 A CN201910845185 A CN 201910845185A CN 110634823 A CN110634823 A CN 110634823A
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- heat dissipation
- igbt module
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- 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
- H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
- H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a sectional blocking-flow type heat dissipation structure of a motor controller and a heat dissipation method thereof, wherein the heat dissipation structure comprises a sectional blocking-flow water guide groove, a controller water inlet and a controller water outlet which are respectively positioned at two tail ends of the sectional blocking-flow water guide groove, a water channel is arranged in the sectional blocking-flow water guide groove, and one side of the sectional blocking-flow water guide groove is connected with a first IGBT module, a second IGBT module and a third IGBT module. The segmented choking type heat dissipation structure of the motor controller adopts a segmented choking design, uniformly dissipates heat for a three-phase bridge arm, effectively reduces the temperature of a three-phase output end of the motor controller, ensures the balance of three-phase current of the motor, reduces the heat loss of a motor system, improves the overall efficiency of the motor system, and improves the service life of a product and the endurance mileage of a whole vehicle to a certain extent.
Description
The technical field is as follows:
the invention relates to a segmented flow blocking type heat dissipation structure of a motor controller and a heat dissipation method of the segmented flow blocking type heat dissipation structure, and belongs to the technical field of electric automobile drive control systems.
Background art:
the motor controller is used as a core unit of the power of the whole vehicle, the IGBT power module has the characteristics of large current and high heat productivity under the working condition, and cooling liquid is needed to dissipate the heat of the whole system.
The invention content is as follows:
the invention provides a segmented blocking heat dissipation structure of a motor controller and a heat dissipation method thereof for solving the problems in the prior art.
The invention adopts the following technical scheme: the sectional flow blocking type heat dissipation structure comprises a sectional flow blocking water guide groove, a controller water inlet and a controller water outlet, wherein the controller water inlet and the controller water outlet are respectively located at two tail ends of the sectional flow blocking water guide groove, a water channel is arranged in the sectional flow blocking water guide groove, and a first IGBT module, a second IGBT module and a third IGBT module are connected to one side of the sectional flow blocking water guide groove.
Further, the first IGBT module, the second IGBT module and the third IGBT module are controller three-phase IGBT modules.
The invention also adopts the following technical scheme: a heat dissipation method of a segmented flow blocking type heat dissipation structure of a motor controller comprises the following steps:
the method comprises the following steps: the cooling liquid enters from the water inlet of the controller, passes through the water channel and then flows out from the water outlet of the controller to enter the motor cooling water channel;
step two: in the operation process of the heat dissipation structure, large currents are generated at the first IGBT module, the second IGBT module and the third IGBT module to cause instant temperature rise, cooling liquid enters the water channel, and a flow blocking type water channel is formed among the IGBT modules to enable water flow speeds among the three-phase bridge arms to be different, so that the temperature rise among the three-phase bridge arms is balanced, and three-phase currents are kept balanced.
The invention has the following beneficial effects: the segmented choking type heat dissipation structure of the motor controller adopts a segmented choking design, uniformly dissipates heat for a three-phase bridge arm, effectively reduces the temperature of a three-phase output end of the motor controller, ensures the balance of three-phase current of the motor, reduces the heat loss of a motor system, improves the overall efficiency of the motor system, and improves the service life of a product and the endurance mileage of a whole vehicle to a certain extent.
Description of the drawings:
fig. 1 is a schematic view of a segmented choke type heat dissipation structure of a motor controller according to the present invention.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings.
The segmented blocking type heat dissipation structure of the motor controller comprises a segmented blocking water guiding groove 4, a controller water inlet 1 and a controller water outlet 2 which are respectively positioned at two tail ends of the segmented blocking water guiding groove 4, a water channel 3 is arranged in the segmented blocking water guiding groove 4, and one side of the segmented blocking water guiding groove 4 is connected with a first IGBT module 5, a second IGBT module 6 and a third IGBT module 7.
The first IGBT module 5, the second IGBT module 6 and the third IGBT module 7 are controller three-phase IGBT modules, and have the characteristics of large current and high temperature rise.
The invention relates to a heat dissipation method of a segmented flow blocking type heat dissipation structure of a motor controller, which comprises the following steps:
the method comprises the following steps: the cooling liquid enters from a water inlet 1 of the controller, passes through a water channel 3, and then flows out from a water outlet 2 of the controller to enter a motor cooling water channel;
step two: in the operation process of the heat dissipation structure, the first IGBT module 5, the second IGBT module 6 and the third IGBT module 7 can generate large current to cause instant temperature rise, after cooling liquid enters the water channel 3, a flow blocking type water channel exists among the IGBT modules, so that the water flow speeds among the three-phase bridge arms are different, the temperature rise among the three-phase bridge arms is balanced, the three-phase current is kept balanced, the motor system can be safely and stably operated, and the safety level of the whole vehicle is improved.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (3)
1. The utility model provides a motor controller segmentation choked flow formula heat radiation structure which characterized in that: the water supply system comprises a sectional type flow-blocking water guide groove (4), a controller water inlet (1) and a controller water outlet (2) which are respectively positioned at two tail ends of the sectional type flow-blocking water guide groove (4), a water channel (3) is arranged in the sectional type flow-blocking water guide groove (4), and a first IGBT module (5), a second IGBT module (6) and a third IGBT module (7) are connected to one side of the sectional type flow-blocking water guide groove (4).
2. The segmented flow blocking heat dissipation structure of the motor controller according to claim 1, wherein: the first IGBT module (5), the second IGBT module (6) and the third IGBT module (7) are controller three-phase IGBT modules.
3. A heat dissipation method of a segmented flow blocking type heat dissipation structure of a motor controller is characterized in that: the method comprises the following steps:
the method comprises the following steps: the cooling liquid enters from a water inlet (1) of the controller, passes through a water channel (3), and then flows out from a water outlet (2) of the controller to enter a motor cooling water channel;
step two: in the operation process of the heat dissipation structure, large currents are generated at the first IGBT module (5), the second IGBT module (6) and the third IGBT module (7) to cause instant temperature rise, cooling liquid enters the water channel (3), and a flow blocking type water channel is arranged among the IGBT modules to enable water flow speeds among the three-phase bridge arms to be different, so that the temperature rise among the three-phase bridge arms is balanced, and three-phase currents are kept balanced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845185.9A CN110634823A (en) | 2019-09-08 | 2019-09-08 | Segmented flow blocking type heat dissipation structure of motor controller and heat dissipation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845185.9A CN110634823A (en) | 2019-09-08 | 2019-09-08 | Segmented flow blocking type heat dissipation structure of motor controller and heat dissipation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110634823A true CN110634823A (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910845185.9A Pending CN110634823A (en) | 2019-09-08 | 2019-09-08 | Segmented flow blocking type heat dissipation structure of motor controller and heat dissipation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950822A (en) * | 2010-09-14 | 2011-01-19 | 联合汽车电子有限公司 | Controller and battery cold plate |
| CN102159058A (en) * | 2011-03-18 | 2011-08-17 | 致茂电子(苏州)有限公司 | Liquid-cooled radiation structure |
| CN104882424A (en) * | 2014-02-28 | 2015-09-02 | 西安永电电气有限责任公司 | Liquid cooling radiator and corresponding IGBT module |
| CN204761941U (en) * | 2015-06-30 | 2015-11-11 | 株洲南车时代电气股份有限公司 | Liquid cooling radiator with mix runner |
-
2019
- 2019-09-08 CN CN201910845185.9A patent/CN110634823A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950822A (en) * | 2010-09-14 | 2011-01-19 | 联合汽车电子有限公司 | Controller and battery cold plate |
| CN102159058A (en) * | 2011-03-18 | 2011-08-17 | 致茂电子(苏州)有限公司 | Liquid-cooled radiation structure |
| CN104882424A (en) * | 2014-02-28 | 2015-09-02 | 西安永电电气有限责任公司 | Liquid cooling radiator and corresponding IGBT module |
| CN204761941U (en) * | 2015-06-30 | 2015-11-11 | 株洲南车时代电气股份有限公司 | Liquid cooling radiator with mix runner |
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Application publication date: 20191231 |