CN111405817A - Integrated water-cooling/air-cooling heat dissipation system of motor controller - Google Patents
Integrated water-cooling/air-cooling heat dissipation system of motor controller Download PDFInfo
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- CN111405817A CN111405817A CN202010211947.2A CN202010211947A CN111405817A CN 111405817 A CN111405817 A CN 111405817A CN 202010211947 A CN202010211947 A CN 202010211947A CN 111405817 A CN111405817 A CN 111405817A
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- cooling
- heat dissipation
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- main control
- control board
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 78
- 238000001816 cooling Methods 0.000 title claims abstract description 74
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides an integrated water-cooling/air-cooling heat dissipation system of a motor controller, which comprises a controller box, wherein a power board, a shielding board and a main control board are sequentially stacked and arranged at intervals from the bottom to the top in the controller box; the shielding plate is arranged on the power board and can perform blowing and heat dissipation on the power board through the fan arranged on the shielding plate, and an airflow exchange port is formed between the edge of the shielding plate and the inner wall of the controller box body; the main control board is arranged on the shielding board, an opening formed in the main control board is communicated with the air inlet end of the fan, and air above the main control board can be conveyed to the fan. The invention provides a water-cooling/air-cooling integrated heat dissipation scheme of a motor controller by adopting a mode of combining an air-cooling system and a water-cooling system.
Description
Technical Field
The invention relates to a heat dissipation system structure of a motor controller.
Background
In recent years, the whole new energy automobile industry has a vigorous development situation under the support of a policy of vigorously advocating the development of new energy automobiles in China. The electric drive system as a power output unit of the whole vehicle determines the power performance of the electric vehicle, so the electric drive system is called as the heart of a new energy vehicle, and the importance of the electric drive system is remarkable. For the development work of the motor controller structure, the quality of a heat dissipation system is directly related to the stability of product performance and the safety of a vehicle form. Accordingly, the design of heat dissipation systems has been attracting increasing attention of practitioners in its dominant position.
Regarding the heat dissipation requirement, the components requiring heat dissipation inside the motor controller include: the power supply comprises a main power device, a high-current PCB, other electronic devices (such as a power supply inductance device, a support capacitor, a bleeder resistor and the like) and the like. However, the existing cooling system schemes for the motor controller mostly focus on heat dissipation of the main power device and the support capacitor, that is, heat dissipation is performed in a water cooling manner. However, for some motor controllers with PCB and its accompanying components heat dissipation requirements, there is often no good solution. The heat dissipation scheme of the common PCB and the attached devices is as follows: the heat of the heat dissipation part is transferred to nearby metal shell accessories through heat-conducting media (Gapfiller, heat-conducting pads and the like) so as to achieve the purpose of fixed-point heat dissipation. However, this approach often has insurmountable problems: 1) a heat dissipation base body matched with fixed-point heat dissipation is difficult to design on the metal box body; 2) under the condition of high-voltage devices or PCB heat dissipation, the heat dissipation structure is difficult to realize reliable insulation; 3) devices needing heat dissipation are not distributed in a centralized mode, and the disordered heat source distribution causes difficulty for a structure dissipating heat at a given point.
Disclosure of Invention
The invention aims to provide an integrated water-cooling/air-cooling heat dissipation system of a motor controller, which is added with air-cooling heat dissipation on the premise of keeping high-efficiency water-cooling heat dissipation so as to overcome the defects of the prior technical scheme and provide an integrated motor controller heat dissipation scheme which is high in heat dissipation efficiency, comprehensive in heat dissipation and easy to realize for motor controller developers.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a machine controller integration water-cooling/forced air cooling system which characterized in that: including the controller box to stack the interval by bottom to top in proper order and install power board, shield plate and main control board in the controller box, wherein:
a main power device and a water-cooling radiator are arranged between the bottom side of the power board and the bottom of the controller box body, and the water-cooling radiator can radiate the main power device;
the shielding plate is arranged on the power board and can perform blowing and heat dissipation on the power board through the fan arranged on the shielding plate, and an airflow exchange port is formed between the edge of the shielding plate and the inner wall of the controller box body;
the main control board is arranged on the shielding board, the periphery of the main control board and the inner wall of the controller box body are not sealed, an opening is formed in the main control board, the opening is communicated with the air inlet end of the fan, and air above the main control board can be conveyed to the fan.
The integrated water-cooling/air-cooling heat dissipation system of the motor controller is characterized in that: the main control board is provided with devices needing heat dissipation, and heat dissipation fins are added on the devices needing heat dissipation and are positioned above the main control board.
The integrated water-cooling/air-cooling heat dissipation system of the motor controller is characterized in that: the device requiring heat dissipation is a master chip.
The integrated water-cooling/air-cooling heat dissipation system of the motor controller is characterized in that: box body radiating fins are arranged on the inner wall of the controller box body corresponding to the air flow exchange ports.
The integrated water-cooling/air-cooling heat dissipation system of the motor controller is characterized in that: the controller box body is made of metal materials.
The integrated water-cooling/air-cooling heat dissipation system of the motor controller is characterized in that: one or more of a capacitor, an inductor, a resistor and a PCB are mounted on the power board.
The integrated water-cooling/air-cooling heat dissipation system of the motor controller is characterized in that: the fan is installed in the central position of shield plate, the opening of main control board arranges the central position of main control board.
The integrated water-cooling/air-cooling heat dissipation system of the motor controller is characterized in that: the shielding plate is rectangular, and the air flow exchange port is formed between the midpoint position of each side of the shielding plate and the inner wall of the controller box body.
The invention has the following advantages:
1. the invention provides a water-cooling/air-cooling integrated heat dissipation scheme of a motor controller by adopting a mode of combining an air-cooling system and a water-cooling system;
2. the power board and the main control board are symmetrically arranged on two sides of the shielding board, and the shielding board has the functions of electromagnetic shielding, fan installation, airflow circulation path planning and the like;
3. the inner wall of the controller box is provided with box body radiating fins, so that a good system convection heat exchange effect can be achieved;
4. according to the invention, through the symmetrical arrangement of the main control board and the power board and the design of the airflow exchange ports at the periphery of the shielding board, the airflow flows in parallel between the main control board and the power board, and the efficient and uniform heat dissipation effect can be achieved.
Drawings
Fig. 1 is a schematic half-sectional structure view of an integrated water-cooling/air-cooling heat dissipation system of a motor controller provided by the invention.
Fig. 2 is a top view of the integrated water-cooling/air-cooling heat dissipation system of the motor controller provided by the invention.
Fig. 3 is a schematic view of the air circulation of the integrated water-cooling/air-cooling heat dissipation system of the motor controller provided by the invention.
Fig. 4 is a schematic structural diagram of the interior of a controller box of the integrated water-cooling/air-cooling heat dissipation system of the motor controller provided by the invention.
Fig. 5 is a schematic power board structure diagram of the integrated water-cooling/air-cooling heat dissipation system of the motor controller provided by the invention.
Description of reference numerals: a controller case 1; 1-1 of box body radiating fins; 1-2 of a water-cooled radiator; a fan 2; a main control board 3; 3-1 of radiating fins; a main chip 3-2; a shield plate 4; a power board 5; a capacitor 5-1; 5-2 of an inductor; 5-3 of a resistor; 5-4 of PCB; main power device 6
Detailed Description
Aiming at the problems, the invention provides an integrated motor controller heat dissipation scheme which is high in heat dissipation efficiency, comprehensive in heat dissipation and easy to realize.
As shown in fig. 1 and 2, the present invention provides an integrated water-cooling/air-cooling heat dissipation system for a motor controller, which mainly includes a controller box 1, and a power board 5, a shielding board 4 and a main control board 3 are sequentially installed in the controller box 1 from bottom to top in a stacking manner at intervals, and a top opening is closed by a top board (not shown in fig. 1), wherein:
a main power device 6 and a water-cooling radiator 1-2 are arranged between the bottom side of the power board 5 and the bottom of the controller box 1, the main power device 6 arranged on the radiating surface of the water-cooling radiator 1-2 can be radiated, and for some schemes, a supporting capacitor can also be radiated;
the power board 5 is typically structured as shown in fig. 5, the mounted devices needing heat dissipation are a capacitor 5-1, an inductor 5-2, a resistor 5-3 and a PCB5-4, the power board 5 is arranged on the main power device 6, and a heat dissipation system is required to actively dissipate heat of the PCB5-4 and the attached devices thereon;
the shielding plate 4 has an electromagnetic shielding function, is arranged on the power plate 5, and performs blowing and heat dissipation on the power plate 5 through the fan 2 arranged at the center position of the shielding plate 4, an airflow exchange port is formed between each edge center position of the shielding plate 4 and the inner wall of the controller box 1, and when the fan 2 starts to work, the airflow exchange port is used as an interaction port for air at the upper side and the lower side of the shielding plate 4;
the main control board 3 is arranged on the shielding board 4, the periphery of the main control board is not sealed with the inner wall of the controller box 1, the main control board and the shielding board 5 form a shape of a Chinese character 'hui', an opening is arranged at the center of the main control board 3, and the opening is communicated with the air inlet end of the fan 2 so as to convey air above the main control board 3 to the fan 2; the main control board 3 is also provided with devices (such as a main chip 3-2 and the like) which need heat dissipation, so that the main control board 3 can be also subjected to heat dissipation by the advective wind above the main control board 3, and it needs to be noted that in order to obtain a better heat dissipation effect, the heat dissipation fins 3-1 can be added for the devices (such as the main chip 3-2) with conditions, so that the heat dissipation effect of the devices can be greatly increased;
meanwhile, in order to better dissipate heat of the circulating airflow, box body heat dissipation fins 1-1 can be additionally arranged on the inner wall of the controller box body 1 corresponding to each airflow exchange port; when the air current flows through the case body heat dissipation fins 1-1, the heat of the air current is efficiently transferred to the controller case body 1, and the heat is transferred to the environment through the outer surface of the controller case body 1, and of course, the material of the controller case body 1 is preferably made of a metal material so as to facilitate heat dissipation.
As shown in fig. 3, which is a schematic diagram of a heat dissipation airflow circulation path of the present invention, when the fan 2 operates, the fan blows air downwards to the upper surface of the power board 5, and forms a advective airflow from the center to the periphery on the upper surface of the power board 5, so as to take away heat of the electronic components on the power board 5, and then flows upwards through an airflow exchange port between the power board 5 and the inner wall of the controller box 1, at the airflow exchange port, the box heat dissipation fins 1-1 transfer heat in the airflow to the controller box 1, and then the heat is transferred to the outside air by the outer wall of the controller box 1 to be dissipated, and the airflow passing through the airflow exchange port crosses the main control board 3, and is changed into advective flow, so as to collect heat on the main control board 3, and then the airflow is collected by an opening at the center of the main control board 3 and supplied to the fan 2, and is blown to the power board 5 again by, the above steps are repeated to form a heat dissipation airflow circulation.
It can be seen that the invention has the following advantages:
1. the invention provides a water-cooling/air-cooling integrated heat dissipation scheme of a motor controller by adopting a mode of combining an air-cooling system and a water-cooling system;
2. the power board and the main control board are symmetrically arranged on two sides of the shielding board, and the shielding board has the functions of electromagnetic shielding, fan installation, airflow circulation path planning and the like;
3. the inner wall of the controller box is provided with box body radiating fins, so that a good system convection heat exchange effect can be achieved;
4. according to the invention, through the symmetrical arrangement of the main control board and the power board and the design of the airflow exchange ports at the periphery of the shielding board, the airflow flows in parallel between the main control board and the power board, and the efficient and uniform heat dissipation effect can be achieved.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the inventive concept, which is intended to be covered thereby.
Claims (8)
1. The utility model provides a machine controller integration water-cooling/forced air cooling system which characterized in that: including the controller box to stack the interval by bottom to top in proper order and install power board, shield plate and main control board in the controller box, wherein:
a main power device and a water-cooling radiator are arranged between the bottom side of the power board and the bottom of the controller box body, and the water-cooling radiator can radiate the main power device;
the shielding plate is arranged on the power board and can perform blowing and heat dissipation on the power board through the fan arranged on the shielding plate, and an airflow exchange port is formed between the edge of the shielding plate and the inner wall of the controller box body;
the main control board is arranged on the shielding board, the periphery of the main control board and the inner wall of the controller box body are not sealed, an opening is formed in the main control board, the opening is communicated with the air inlet end of the fan, and air above the main control board can be conveyed to the fan.
2. The integrated water-cooling/air-cooling heat dissipation system of the motor controller according to claim 1, characterized in that: the main control board is provided with devices needing heat dissipation, and heat dissipation fins are added on the devices needing heat dissipation and are positioned above the main control board.
3. The integrated water-cooling/air-cooling heat dissipation system of the motor controller according to claim 2, characterized in that: the device requiring heat dissipation is a master chip.
4. The integrated water-cooling/air-cooling heat dissipation system of the motor controller according to claim 1, characterized in that: box body radiating fins are arranged on the inner wall of the controller box body corresponding to the air flow exchange ports.
5. The integrated water-cooling/air-cooling heat dissipation system of the motor controller according to claim 1, characterized in that: the controller box body is made of metal materials.
6. The integrated water-cooling/air-cooling heat dissipation system of the motor controller according to claim 1, characterized in that: one or more of a capacitor, an inductor, a resistor and a PCB are mounted on the power board.
7. The integrated water-cooling/air-cooling heat dissipation system of the motor controller according to claim 1, characterized in that: the fan is installed in the central position of shield plate, the opening of main control board arranges the central position of main control board.
8. The integrated water-cooling/air-cooling heat dissipation system of the motor controller according to claim 1, characterized in that: the shielding plate is rectangular, and the air flow exchange port is formed between the midpoint position of each side of the shielding plate and the inner wall of the controller box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010211947.2A CN111405817A (en) | 2020-03-24 | 2020-03-24 | Integrated water-cooling/air-cooling heat dissipation system of motor controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010211947.2A CN111405817A (en) | 2020-03-24 | 2020-03-24 | Integrated water-cooling/air-cooling heat dissipation system of motor controller |
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| CN111405817A true CN111405817A (en) | 2020-07-10 |
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| CN202010211947.2A Pending CN111405817A (en) | 2020-03-24 | 2020-03-24 | Integrated water-cooling/air-cooling heat dissipation system of motor controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117098364A (en) * | 2023-08-22 | 2023-11-21 | 苏州氢启新能源科技有限公司 | Controller for hydrogen fuel cell air compressor |
| CN117580274A (en) * | 2024-01-15 | 2024-02-20 | 江苏金脉电控科技有限公司 | PCB-based motor controller processing method |
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Cited By (4)
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| CN117580274A (en) * | 2024-01-15 | 2024-02-20 | 江苏金脉电控科技有限公司 | PCB-based motor controller processing method |
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