CN111010052A - Double-motor controller - Google Patents
Double-motor controller Download PDFInfo
- Publication number
- CN111010052A CN111010052A CN201911364027.8A CN201911364027A CN111010052A CN 111010052 A CN111010052 A CN 111010052A CN 201911364027 A CN201911364027 A CN 201911364027A CN 111010052 A CN111010052 A CN 111010052A
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- China
- Prior art keywords
- control module
- power unit
- cooling water
- water channel
- dual
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
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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
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
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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
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to a double-motor controller, which comprises a box body, a cooling water channel, a first control module and a second control module, wherein the cooling water channel is arranged in the middle of the box body, and the first control module and the second control module are respectively positioned on the upper side and the lower side of the cooling water channel. By adopting the double-motor controller with the structure, the usage amount of mechanical parts, wire harnesses and other electronic components is reduced by adopting the box body and the cooling water channel, so that the size and the weight of the double-motor controller are reduced, the cost of the controller is effectively reduced, and the power density of an electric drive system is favorably increased.
Description
Technical Field
The invention relates to the technical field of motor control, in particular to the technical field of motor control applied to hybrid electric vehicles, and specifically relates to a dual-motor controller.
Background
With the continuous shortage of petroleum energy and the aggravation of environmental protection pressure, new energy automobiles are increasingly concerned by the market, and a hybrid electric vehicle as one of the new energy automobiles can meet the requirements of energy conservation and environmental protection and meet the requirement of people on endurance mileage.
Hybrid vehicles generally use two electric machines to distribute energy to an engine and a battery pack, and it is a common practice at present to control the two electric machines by using a dual-motor controller. The double-motor controller integrates the components of the two motor controllers into one box body, so that the size can be greatly reduced, and the weight can be reduced.
The Chinese patent application numbers are: CN201120494061 patent discloses a dual-motor controller structure for hybrid electric vehicle, characterized in that: the driving motor IGBT and the generating motor IGBT are located on the same plane and distributed on two sides of the thin film capacitor. And cooling water channels are arranged at the bottoms of the driving motor IGBT and the generating motor IGBT. The utility model discloses a compact structure is reasonable, and the radiating effect is better. But its horizontal direction occupies a large space.
Chinese patent application No.: the CN201820324382.7 patent discloses an integrated power device for dual-motor controller, which is characterized in that: the thin film capacitor is fixed on the upper surface of the heat dissipation box body and located above the two power modules, two groups of busbar output assemblies are arranged on the edges corresponding to the power modules, and the two groups of busbar output assemblies are connected with the two power modules. The utility model has the advantages of small volume and high collection degree. But the space occupied by the two power modules arranged symmetrically is large.
In summary, the dual-motor controller in the prior art adopts the parallel arrangement of the two power modules, which occupies a large horizontal space.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the dual-motor controller with small space occupancy rate and good applicability.
In order to achieve the above object, the dual-motor controller of the present invention is as follows:
the double-motor controller is mainly characterized by comprising a box body, a cooling water channel, a first control module and a second control module, wherein the cooling water channel is arranged in the middle of the box body, and the first control module and the second control module are respectively positioned on the upper side and the lower side of the cooling water channel.
Preferably, the inlet of the cooling water channel is connected to a water inlet pipe joint disposed on the outer wall surface of the box body, the outlet of the cooling water channel is connected to a water outlet pipe joint disposed on the outer wall surface of the box body, and the water inlet pipe joint and the water outlet pipe joint are located on the same outer wall surface of the box body.
Preferably, the first control module and the second control module are both connected to a thin film capacitor.
Preferably, the thin film capacitor is provided with an input end direct current copper bar, positive and negative copper bars of the input end direct current copper bar are isolated by insulating paper, and the thin film capacitor is connected with a direct current connector arranged on the outer wall surface of the box body through the input end direct current copper bar;
the encapsulation surface of the thin film capacitor extends out of an upper row of alternating current terminals and a lower row of alternating current terminals, and the upper row of alternating current terminals and the lower row of alternating current terminals are respectively connected with the first control module and the second control module.
Further, the dual-motor controller further comprises a radiator, and the radiator is located between the first control module and the cooling water channel.
Furthermore, the first control module comprises a first power unit, a first driving board and a first main control board assembly, the first driving board is fixed on the first power unit, the first main control board assembly is fixed above the radiator, and the first main control board assembly is connected with the first driving board;
the second control module comprises a second power unit, a second driving plate and a second main control plate assembly, the second driving plate is fixed on the second power unit, and the second main control plate assembly is connected with the second driving plate;
the first power unit is positioned above the cooling water channel, and the second power unit is positioned below the cooling water channel;
and the upper and lower rows of alternating current terminals extending out of the encapsulation surface of the thin-film capacitor are respectively connected with the first power unit and the second power unit.
Furthermore, the first power unit is connected with an alternating current connector arranged on the outer wall surface of the box body through a first alternating current copper bar, and the alternating current connector is connected with a three-phase line of the motor through a wiring harness; the second power unit is connected with the second alternating current copper bar, and the second alternating current copper bar is directly connected with the three-phase line of the motor in an inserted mode.
Furthermore, a low-voltage connector is arranged on the box body and close to the first control module, and the low-voltage connector is respectively connected with the first main control board assembly and the second main control board assembly.
Preferably, the upper end of the box body is provided with an upper cover plate, the lower end of the box body is provided with a lower cover plate, and the upper cover plate is further provided with a small cover plate.
According to the double-motor controller, the first control module and the second control module are respectively arranged in the upper part and the lower part of the same box body, due to the integrated optimization design, the space is saved, the manufacturing cost is reduced, the first control module and the second control module share one cooling water channel and the film capacitor, the heat dissipation efficiency is effectively improved, the space is saved, meanwhile, the double-motor controller is connected with a three-phase line of a motor in a copper bar direct-insertion mode, the space is saved, and the layout is optimized.
Drawings
Fig. 1 is a schematic structural diagram of a box of a dual-motor controller according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an upper layer structure in the dual-motor controller of the present invention in an embodiment.
Fig. 3 is a schematic diagram of a lower layer structure in the dual-motor controller of the present invention in one embodiment.
Fig. 4 is a cross-sectional view of a dual motor controller of the present invention in one embodiment.
Fig. 5 is a partially enlarged view of a portion a in fig. 4.
Reference numerals
1 DC connector
2 Upper cover plate
3 AC connector
4 first alternating current copper bar
5 water outlet water pipe joint
6 water inlet water pipe joint
7 lower cover plate
8 low-voltage connector
9 case body
10 small cover plate
11 thin film capacitor
12 input end direct current copper bar
13 first power unit
14 first Master Panel Assembly
15 radiator
16 second alternating current copper bar
17 second Main control Panel Assembly
18 second power unit
19 inlet of cooling water channel
20 shield support plate
Detailed Description
In order to more clearly describe the technical contents of the present invention, the following further description is given in conjunction with specific embodiments.
As shown in fig. 1 to 5, the dual-motor controller includes a box 9, a cooling water channel, a first control module and a second control module, the cooling water channel is disposed in the middle of the box 9, and the first control module and the second control module are respectively disposed at the upper side and the lower side of the cooling water channel, so that the upper control module and the lower control module can share the cooling water channel, occupy a smaller planar space, have a more compact structure, and contribute to saving the planar space and optimizing the layout;
in this embodiment, the inlet 19 of the cooling water passage is connected to a water inlet pipe joint 6 provided on the outer wall surface of the case 9, the outlet of the cooling water passage is connected to a water outlet pipe joint 5 provided on the outer wall surface of the case 9, and the water inlet pipe joint 6 and the water outlet pipe joint 5 are located on the same outer wall surface of the case 9.
In this embodiment, the first control module and the second control module are both connected to a thin film capacitor 11.
In this embodiment, the thin film capacitor 11 is provided with an input end direct current copper bar 12, positive and negative copper bars of the input end direct current copper bar 12 are isolated by insulating paper, and the thin film capacitor 11 is connected to the direct current connector 1 arranged on the outer wall surface of the box body 9 through the input end direct current copper bar 12;
the encapsulation surface of the thin film capacitor 11 extends out of the upper row of alternating current terminals and the lower row of alternating current terminals, and the upper row of alternating current terminals and the lower row of alternating current terminals are respectively connected with the first control module and the second control module.
The first control module and the second control module share one thin film capacitor 11, so that the space can be effectively saved, and the layout is optimized.
In this embodiment, the dual-motor controller further includes a radiator 15, and the radiator 15 is located between the first control module and the cooling water channel.
In this embodiment, the first control module includes a first power unit 13, a first driving board and a first main control board assembly 14, the first driving board is fixed on the first power unit 13, the first main control board assembly 14 is fixed above the heat sink 15, and the first main control board assembly 14 is connected to the first driving board;
the second control module comprises a second power unit 18, a second drive board and a second main control board assembly 17, the second drive board is fixed on the second power unit 18, and the second main control board assembly 17 is connected with the second drive board;
the first power unit 13 is positioned above the cooling water channel, and the second power unit 18 is positioned below the cooling water channel;
the upper and lower rows of alternating current terminals extending out of the potting surface of the thin film capacitor are respectively connected with the first power unit 13 and the second power unit 18.
In the actual production process, the first power unit 13, the first drive board and the first main control board assembly 14, the second power unit 18, and the second drive board and the second main control board assembly 17 can be arranged at the upper layer and the lower layer of the box body 9 in a vertically symmetrical mode; the first power unit 13 can be coated with heat-conducting silicone grease and fixed on the radiator 15; the first driving board is fixed on the first power module, and the first main control board assembly 14 is fixed above the heat sink 15 and connected with the first driving board through pins; the second drive board is fixed on the second power module, and the second main control board assembly 17 is fixed on the lower layer of the box body 9 and connected with the second drive board through pins. The first main control board assembly 14 and the second main control board assembly 17 each include a main control board and a shielding support board 20.
In this embodiment, the first power unit 13 is connected to an ac connector 3 disposed on an outer wall surface of the box 9 through a first ac copper bar 4, and the ac connector 3 is connected to a three-phase line of an external motor through a wiring harness; the second power unit 18 is connected with the second alternating current copper bar 16, and the second alternating current copper bar 16 is directly connected with the three-phase line of the motor in an inserting mode.
By adopting the mode that the copper bar is connected with the three-phase line of the motor, the wiring harness can be effectively saved, and the production cost is reduced.
In this embodiment, a low voltage connector 8 is further disposed on the box 9 at a position close to the first control module, and the low voltage connector is respectively connected to the first main control board assembly 14 and the second main control board assembly 17.
In this embodiment, the upper end of the box body 9 is provided with an upper cover plate 2, the lower end of the box body 9 is provided with a lower cover plate 7, and the upper cover plate 2 is further provided with a small cover plate 10.
In this embodiment, the first control module and the second control module are integrated into the box 9, and the usage amount of mechanical parts, wire harnesses and other electronic components is effectively reduced, so that the size of the dual-motor controller is reduced, the weight is reduced, the cost of the controller is effectively reduced, the power density of the electric drive system is increased, and the problems of large occupied space and low power density of the dual-motor controller in the prior art are effectively solved.
Meanwhile, in other embodiments, the installation surface of the radiator can be properly adjusted, for example, the radiator can be replaced by other radiating modules, for example, the radiator on the upper side of the box body can be replaced by a water channel structure on the lower side of the box body, so that the module on the upper side of the box body can use the same module as that on the lower side of the box body, and the module of the dual-motor controller can be changed, so that the use is more flexible.
That is, in this embodiment, the box 9 is divided into an upper layer and a lower layer, wherein the first power unit 13, the first driving board, the first main control board assembly 14, the first ac copper bar 4, the heat sink 15, the dc connector 1, the ac connector 3, the low-voltage connector 8, and the thin-film capacitor are all located on the upper layer of the box 9, and the second power unit 18, the second driving board, the second main control board assembly 17, and the second ac copper bar 16 are all located on the lower layer of the box 9. The upper layer of the box body 9 is provided with an upper cover plate 2, and the lower layer of the box body 9 is provided with a lower cover plate 7. In this embodiment, as shown in fig. 1, the inlet 19 and the outlet of the cooling water channel are also provided in the lower layer of the tank 9. In this embodiment, the first control module and the second control module share a cooling water channel, and cooling water enters the box 9 from a water inlet (i.e., an inlet) of the cooling water channel, cools the second power unit 18 on the lower side of the box 9, enters the heat sink to cool the first power unit 13 on the upper side of the box 9, and is discharged through a water outlet of the cooling water channel; namely, cooling water enters the lower layer of the box body 9 from the water inlet to cool the second control module, and then enters the upper layer radiator 15 through the through hole to cool the first control module.
According to the double-motor controller, the first control module and the second control module are respectively arranged in the upper part and the lower part of the same box body, due to the integrated optimization design, the space is saved, the manufacturing cost is reduced, the first control module and the second control module share one cooling water channel and the film capacitor, the heat dissipation efficiency is effectively improved, the space is saved, meanwhile, the double-motor controller is connected with a three-phase line of a motor in a copper bar direct-insertion mode, the space is saved, and the layout is optimized.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (9)
1. The double-motor controller is characterized by comprising a box body, a cooling water channel, a first control module and a second control module, wherein the cooling water channel is arranged in the middle of the box body, and the first control module and the second control module are respectively positioned on the upper side and the lower side of the cooling water channel.
2. The dual-motor control of claim 1, wherein an inlet of the cooling water channel is connected to a water inlet pipe connector provided on an outer wall surface of the case, an outlet of the cooling water channel is connected to a water outlet pipe connector provided on the outer wall surface of the case, and the water inlet pipe connector and the water outlet pipe connector are located on the same outer wall surface of the case.
3. The dual motor control of claim 1, wherein the first control module and the second control module are each connected to a thin film capacitor.
4. The two-motor control of claim 3, wherein the thin film capacitor is provided with input end direct current copper bars, positive and negative copper bars of the input end direct current copper bars are isolated by insulating paper, and the thin film capacitor is connected with a direct current connector arranged on the outer wall surface of the box body through the input end direct current copper bars;
the encapsulation surface of the thin film capacitor extends out of an upper row of alternating current terminals and a lower row of alternating current terminals, and the upper row of alternating current terminals and the lower row of alternating current terminals are respectively connected with the first control module and the second control module.
5. The dual-motor control of claim 4, further comprising a heat sink positioned between said first control module and said cooling water channel.
6. The dual-motor control of claim 5,
the first control module comprises a first power unit, a first driving board and a first main control board assembly, the first driving board is fixed on the first power unit, the first main control board assembly is fixed above the radiator, and the first main control board assembly is connected with the first driving board;
the second control module comprises a second power unit, a second driving plate and a second main control plate assembly, the second driving plate is fixed on the second power unit, and the second main control plate assembly is connected with the second driving plate;
the first power unit is positioned above the cooling water channel, and the second power unit is positioned below the cooling water channel;
and the upper and lower rows of alternating current terminals extending out of the encapsulation surface of the thin-film capacitor are respectively connected with the first power unit and the second power unit.
7. The dual-motor control of claim 6, wherein the first power unit is connected to an ac connector on an outer wall of the case via a first ac copper bar, the ac connector being connected to a three-phase line of the motor via a wiring harness; the second power unit is connected with the second alternating current copper bar, and the second alternating current copper bar is directly connected with the three-phase line of the motor in an inserted mode.
8. The dual-motor control of claim 6, wherein a low voltage connector is further disposed on the case body at a position close to the first control module, and the low voltage connector is respectively connected to the first main control board assembly and the second main control board assembly.
9. The dual-motor control as claimed in claim 1, wherein an upper cover plate is provided at the upper end of the case, a lower cover plate is provided at the lower end of the case, and a small cover plate is further provided on the upper cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911364027.8A CN111010052A (en) | 2019-12-26 | 2019-12-26 | Double-motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911364027.8A CN111010052A (en) | 2019-12-26 | 2019-12-26 | Double-motor controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111010052A true CN111010052A (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911364027.8A Pending CN111010052A (en) | 2019-12-26 | 2019-12-26 | Double-motor controller |
Country Status (1)
| Country | Link |
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| CN (1) | CN111010052A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112993617A (en) * | 2021-02-04 | 2021-06-18 | 哈尔滨东安汽车发动机制造有限公司 | All-in-one motor controller assembly integrated with electronic pump controller |
| CN113733893A (en) * | 2020-05-27 | 2021-12-03 | 比亚迪股份有限公司 | Dual electric control controller, hybrid power system and electric vehicle |
-
2019
- 2019-12-26 CN CN201911364027.8A patent/CN111010052A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733893A (en) * | 2020-05-27 | 2021-12-03 | 比亚迪股份有限公司 | Dual electric control controller, hybrid power system and electric vehicle |
| CN112993617A (en) * | 2021-02-04 | 2021-06-18 | 哈尔滨东安汽车发动机制造有限公司 | All-in-one motor controller assembly integrated with electronic pump controller |
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