CN113747736A - Motor controller and vehicle - Google Patents
Motor controller and vehicle Download PDFInfo
- Publication number
- CN113747736A CN113747736A CN202010467883.2A CN202010467883A CN113747736A CN 113747736 A CN113747736 A CN 113747736A CN 202010467883 A CN202010467883 A CN 202010467883A CN 113747736 A CN113747736 A CN 113747736A
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- power module
- heat dissipation
- water channel
- motor controller
- base
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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
-
- 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)
Abstract
The invention relates to the field of motors and provides a motor controller and a vehicle, wherein the motor controller comprises a box body, a generator power module and a driving motor power module; the box body comprises a base and a heat dissipation water channel, the heat dissipation water channel is arranged in the base and penetrates through the base along the length direction of the base, one end of the heat dissipation water channel is a water inlet nozzle communicated with a cooling water source, and the other end of the heat dissipation water channel is a water outlet nozzle used for discharging cooling water; the generator power module and the driving motor power module are respectively arranged on the base along the extension direction of the heat dissipation water channel, and are both positioned above the heat dissipation water channel; the inner side top wall of the heat dissipation water channel is provided with a plurality of cooling columns, and the plurality of cooling columns are arranged in the heat dissipation water channel along the vertical direction. The motor controller has good cooling performance, so that the power module has good heat dissipation effect and high working efficiency.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a motor controller and a vehicle.
Background
At present, a motor and a controller of a pure electric vehicle are connected through a three-phase line, a rotary transformer wire harness and a water pipe. After the vehicle runs for a long time, the water pipe is easy to corrode and age, so that the connection part is loosened, the cooling performance of the electric drive system is reduced, the temperature is overhigh, and meanwhile, the heat dissipation effect of the controller power module is poor, so that the working efficiency and the reliability of the controller power module are reduced.
Disclosure of Invention
In view of this, the present invention is directed to a motor controller, which has good cooling performance, so that the power module has good heat dissipation effect and high working efficiency.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a motor controller comprises a box body, a generator power module and a driving motor power module; the box body comprises a base and a heat dissipation water channel, the heat dissipation water channel is arranged in the base and penetrates through the base along the length direction of the base, one end of the heat dissipation water channel is a water inlet nozzle communicated with a cooling water source, and the other end of the heat dissipation water channel is a water outlet nozzle used for discharging cooling water; the generator power module and the driving motor power module are respectively arranged on the base along the extension direction of the heat dissipation water channel, and are both positioned above the heat dissipation water channel; the inner side top wall of the heat dissipation water channel is provided with a plurality of cooling columns, and the plurality of cooling columns are arranged in the heat dissipation water channel along the vertical direction.
Optionally, the heat dissipation water channel includes a first water channel and a second water channel that communicate with each other, and is a plurality of the cooling column sets up in the first water channel, generator power module sets up above the first water channel.
Optionally, a heat-conducting silicone grease is arranged between the generator power module and the base.
Optionally, the machine controller includes first sealing washer, the top of second water course is uncovered, driving motor power module's bottom has a plurality of heat dissipation posts, driving motor power module sets up the uncovered department of second water course, first sealing washer is in driving motor power module with provide sealedly between the second water course, wherein, it is a plurality of the heat dissipation post stretches into in the second water course.
Optionally, the motor controller includes a first output bus bar and a second output bus bar; one end of the first output busbar is electrically connected with the generator power module, and the other end of the first output busbar is used for connecting a generator wire holder; one end of the second output busbar is electrically connected with the driving motor power module, and the other end of the second output busbar is used for connecting a driving motor wire holder.
Optionally, the motor controller includes a rotary transformer wire harness and a second sealing ring, one end of the rotary transformer wire harness is connected to a control board of the motor controller, the other end of the rotary transformer wire harness penetrates through the base and is used for being connected with an external motor, and the second sealing ring provides sealing between the rotary transformer wire harness and the base.
Optionally, the motor controller includes an upper cover and a high-voltage direct current filter assembly, the upper cover is connected to the base and defines a first accommodating space, and the high-voltage direct current filter assembly is disposed in the first accommodating space; the high-voltage direct-current filtering component comprises a magnetic ring, a filter support and an injection molding copper bar, the filter support is installed on the upper cover, the injection molding copper bar is arranged on the filter support, the input end of the injection molding copper bar is used for being connected with an external power supply, the output end of the injection molding copper bar is used for being connected with a capacitor of the motor controller, and the magnetic ring is sleeved on the injection molding copper bar.
Optionally, the injection-molded copper bar comprises a main circuit output end and a branch circuit output end, the main circuit output end is used for connecting the capacitor, and the branch circuit output end is used for connecting a standby power supply of the motor controller.
Optionally, the high-voltage direct-current filter assembly includes a filter base, the filter base is connected to the filter bracket and defines a second accommodating space, and the magnetic ring is located in the second accommodating space; the filter base body is provided with a containing groove used for containing the capacitor.
Compared with the prior art, the motor controller provided by the invention has the following advantages:
the heat dissipation water channel is arranged in the base and along the length direction of the base penetrates through the base, the generator power module and the driving motor power module are arranged on the base respectively along the extending direction of the heat dissipation water channel, the generator power module and the driving motor power module are arranged above the heat dissipation water channel, the generator power module and the driving motor power module can achieve the purposes of heat dissipation and cooling by means of cooling water in the heat dissipation water channel, in addition, in order to improve the heat dissipation efficiency, the inner side top wall of the heat dissipation water channel is provided with a plurality of cooling columns, the plurality of cooling columns are arranged in the heat dissipation water channel along the vertical direction, so that the heat dissipation water channel can be more fully contacted with the cooling water, the heat exchange efficiency is improved, and the generator power module and the driving motor power module which are arranged above the heat dissipation water channel can obtain more effective heat dissipation, And (6) cooling.
The invention further provides a vehicle which comprises a generator, a driving motor and the motor controller, wherein the generator and the driving motor are both electrically connected with the motor controller.
The vehicle and the motor controller have the same advantages compared with the prior art, and the detailed description is omitted.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural diagram of a base of a motor controller according to the present invention;
fig. 2 is a schematic structural diagram of an upper cover of the motor controller of the present invention.
Description of reference numerals:
1-generator power module, 2-driving motor power module, 3-base, 4-first output bus bar, 5-second output bus bar, 6-rotary transformer wire harness, 7-upper cover, 8-injection molding copper bar, 9-filter base body,
Detailed Description
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 and 2, the motor controller of the present invention includes a case, a generator power module 1, and a driving motor power module 2; the box body comprises a base 3 and a heat dissipation water channel, the heat dissipation water channel is arranged in the base 3 and penetrates through the base 3 along the length direction of the base 3, one end of the heat dissipation water channel is a water inlet nozzle communicated with a cooling water source, and the other end of the heat dissipation water channel is a water outlet nozzle used for discharging cooling water; the generator power module 1 and the driving motor power module 2 are respectively arranged on the base 3 along the extending direction of the heat dissipation water channel, and the generator power module 1 and the driving motor power module 2 are both positioned above the heat dissipation water channel; the inner side top wall of the heat dissipation water channel is provided with a plurality of cooling columns, and the plurality of cooling columns are arranged in the heat dissipation water channel along the vertical direction.
In the invention, the generator power module 1 and the driving motor power module 2 are respectively arranged on the base 3 along the extending direction of the heat dissipation water channel, and the generator power module 1 and the driving motor power module 2 are both positioned above the heat dissipation water channel, the generator power module 1 and the driving motor power module 2 can realize the purposes of heat dissipation and cooling by means of cooling water in the heat dissipation water channel, and in order to improve the heat dissipation efficiency, the top wall of the inner side of the heat dissipation water channel is provided with a plurality of cooling columns which are vertically arranged in the heat dissipation water channel, so that the heat dissipation water channel can be more fully contacted with the cooling water, the heat exchange efficiency is improved, and the generator power module 1 and the driving motor power module 2 positioned above the heat dissipation water channel can obtain more effective heat dissipation, And (6) cooling.
In an embodiment of the present invention, the plurality of cooling columns are not distributed over the heat dissipation water channel, but the heat dissipation water channel is designed to include a first water channel and a second water channel which are communicated with each other, the plurality of cooling columns are disposed in the first water channel, and the generator power module 1 is disposed above the first water channel, that is, the generator power module 1 exchanges heat with cooling water in the first water channel by using the base 3 as a heat transfer medium, so as to achieve heat dissipation and temperature reduction of the generator power module 1.
In order to further improve the heat dissipation efficiency of the engine power module 1, heat-conducting silicone grease is arranged between the generator power module 1 and the base 3, in other words, the heat-conducting silicone grease is uniformly coated on one surface, facing the base 3, of the generator power module 1, and then the heat-conducting silicone grease is mounted on the base 3 through fasteners such as screws, so that the heat dissipation efficiency is improved.
In the above embodiment, in order to further improve driving motor power module 2's radiating efficiency, motor controller still includes first sealing washer, the top design of second water course is open structure, driving motor power module 2's bottom has a plurality of heat dissipation posts, driving motor power module 2 sets up the uncovered department of second water course, first sealing washer is in driving motor power module 2 with provide sealedly between the second water course, wherein, it is a plurality of the heat dissipation post stretches into in the second water course. Because a plurality of heat dissipation posts at the bottom of the driving motor power module 2 directly extend into the cooling water of the second water channel to exchange heat with the cooling water, the heat dissipation efficiency is greatly improved.
In one embodiment of the present invention, the motor controller includes a first output bus bar 4 and a second output bus bar 5; one end of the first output bus bar 4 is electrically connected with the generator power module 1, and the other end of the first output bus bar is used for connecting a generator wiring seat; one end of the second output busbar 5 is electrically connected with the driving motor power module 2, and the other end of the second output busbar is used for connecting a driving motor wire holder. Therefore, when the motor controller is assembled with a motor, the original three-phase line connection mode is replaced by the first output bus bar 4 and the second output bus bar 5 at the three-phase output connection position of the motor controller, the integration level of the motor controller is improved, the risk that a longer transmission wire harness needs to bear external interference is reduced, and meanwhile, the complexity of three-phase line installation in the prior art is simplified.
In one embodiment of the present invention, the motor controller includes a resolver harness 6, one end of the resolver harness 6 is connected to a control board of the motor controller, the other end passes through the base 3 for connecting an external motor, and a second sealing ring provides sealing between the resolver harness 6 and the base 3. Specifically, the rotary transformer harness 6 is provided with a harness body and a plastic part, the harness body and the plastic part are molded together by injection, and a second sealing ring is arranged on the outer ring of the plastic part, and preferably a lip-shaped sealing ring is adopted as the second sealing ring. When the sealing structure is installed, the lip-shaped sealing ring and the base 3 form a radial labyrinth seal, the sealing performance is guaranteed, meanwhile, the rotary transformer wire harness 6 is further provided with a shielding ground, and the shielding ground is communicated with the base 3 through the installation point, so that the sealing structure of the whole rotary transformer wire harness 6 is more compact, and the space occupancy rate is small.
In order to provide greater cost advantages for the motor controller of the present invention, optionally, the motor controller includes an upper cover 7 and a high voltage direct current filter assembly, the upper cover 7 is connected with the base 3 and defines a first accommodating space, and the high voltage direct current filter assembly is disposed in the first accommodating space; the high-voltage direct-current filtering component comprises a magnetic ring, a filter support and an injection molding copper bar 8, the filter support is installed on the upper cover 7, the injection molding copper bar 8 is arranged on the filter support, the input end of the injection molding copper bar 8 is used for being connected with an external power supply, the output end of the injection molding copper bar 8 is used for being connected with a capacitor of the motor controller, and the magnetic ring is sleeved on the injection molding copper bar 8. The high-voltage direct-current filtering component integrates key parts such as a magnetic ring, a filter support, an injection molding copper bar 8 and the like, can be used as a filtering component for direct-current filtering of the motor controller, and has the advantages of high integration level, simplicity and convenience in installation and obvious cost advantage.
In an embodiment of the present invention, the injection molded copper bar 8 includes a main circuit output end and a branch circuit output end, the main circuit output end is used for connecting the capacitor, and the branch circuit output end is used for connecting a standby power supply of the motor controller. Because the branch road output end of the injection molding copper bar 8 can directly supply power for the standby power supply, the use and installation procedures of the switching wiring harness are reduced, and the cost of the motor controller is reduced.
In order to improve the reliability of the filter system of the motor controller, optionally, the high-voltage direct-current filter assembly includes a filter base 9, the filter base 9 is connected to the filter bracket and defines a second accommodating space, and the magnetic ring is located in the second accommodating space; the filter base 9 is provided with a holding groove for holding the capacitor, and the capacitor is fixed and protected through the holding groove, so that the reliability of the whole filtering system is improved.
The motor controller is also provided with a grounding copper bar which is directly communicated with the base 3, the generator drive plate and the drive motor drive plate, and the motor controller has the main function of ensuring good, sufficient and reliable grounding. Noise interference generated by a power module and a driving plate of the motor controller can be released to the ground through the base 3 in time, so that an EMC (electro magnetic compatibility) effect is optimized, and the interference of a noise source of the power module to a control signal is greatly reduced. Meanwhile, the grounding copper bar is ingeniously connected with the two driving plates with different functions, so that the conduction path of noise is reduced, the noise can be timely and effectively conducted to the ground through the mounting point, and the reliable operation of the motor controller is guaranteed.
The generator filter assembly of the motor controller integrates 2Y capacitors by using a resistance welding process, is independently grounded through copper bars, and has the positive and negative electrodes connected with the positive and negative electrodes of the generator power module 1, so that electromagnetic waves generated when electric energy is transmitted to the generator power module 1 from the generator-DC-LINK capacitors can be well filtered, the interference of the electromagnetic waves on switch signals of the power module is reduced, and the performance of the motor controller is improved.
In addition, the driving motor filter assembly of the motor controller integrates 2Y capacitors by using a resistance welding process, is grounded through a mounting point, and the positive and negative electrodes of the driving motor filter assembly are connected with the positive and negative electrodes of the driving motor power module 2, so that electromagnetic waves generated when electric energy is transmitted to the driving motor power module 2 from the driving motor-DC-LINK capacitor can be well filtered, the interference of the electromagnetic waves on switching signals of the power module is reduced, and the performance of the motor controller is improved.
In the above embodiment, the mounting and bonding surfaces of the generator-DC-LINK capacitor and the driving motor-DC-LINK capacitor are made of aluminum, so that the core of the DC-LINK capacitor directly contacts with the aluminum, and the heat dissipation capability of the DC-LINK capacitor is improved by the excellent heat conduction capability of the aluminum, thereby improving the heat dissipation efficiency.
In addition, the three-phase output sealing assembly of the motor controller is composed of the first output bus 4 and the second output bus 5 integrated sealing rings, effective and reasonable sealing is provided for the first output bus 4, the second output bus 5 and the base 3, a current detection function is integrated, and the integration level is very high. It should be noted that the same sealing ring is adopted for the generator module assembly and the driving motor module assembly of the motor controller, so that the design cost and the production cost are reduced.
The invention further provides a vehicle which comprises a generator, a driving motor and the motor controller, wherein the generator and the driving motor are both electrically connected with the motor controller.
In the prior art, for an electric automobile, the scheme of a double motor compared with a single motor and a main reducer or a gearbox is quite advantageous in improving the driving efficiency for four reasons: 1. the efficiency of the single motor is seriously reduced under the conditions of low speed, high speed, light load and the like. 2. The double motors can improve the efficiency of braking energy recovery. 3. The dual motors are not powered down. 4. If a single motor needs to meet the requirements of high performance and high rotating speed range, the design and manufacture difficulty is high, and the total weight is also large. Therefore, for the front-wheel drive automobile, if two motors are used for supplying power to the whole automobile, two motor controllers are needed, so that the whole automobile is required to provide larger installation space, and obviously, the whole automobile is not favorable for arrangement. Under the condition, the vehicle adopts the motor controller, has high integration level and compact structure, and can meet the requirement of the whole vehicle on space arrangement.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A motor controller is characterized by comprising a box body, a generator power module (1) and a driving motor power module (2);
the box body comprises a base (3) and a heat dissipation water channel, the heat dissipation water channel is arranged in the base (3) and penetrates through the base (3) along the length direction of the base (3), one end of the heat dissipation water channel is a water inlet nozzle communicated with a cooling water source, and the other end of the heat dissipation water channel is a water outlet nozzle used for discharging cooling water;
the generator power module (1) and the driving motor power module (2) are respectively arranged on the base (3) along the extension direction of the heat dissipation water channel, and the generator power module (1) and the driving motor power module (2) are both positioned above the heat dissipation water channel;
the inner side top wall of the heat dissipation water channel is provided with a plurality of cooling columns, and the plurality of cooling columns are arranged in the heat dissipation water channel along the vertical direction.
2. The electric machine controller according to claim 1, characterized in that the heat sink channel comprises a first channel and a second channel communicating with each other, in which first channel a plurality of the cooling columns are arranged, and above which first channel the generator power module (1) is arranged.
3. A motor controller according to claim 2, characterised in that a heat conducting silicone grease is provided between the generator power module (1) and the base (3).
4. The motor controller of claim 2, comprising a first sealing ring, wherein the top of the second water channel is open, the bottom of the driving motor power module (2) has a plurality of heat dissipation pillars, the driving motor power module (2) is disposed at the opening of the second water channel, the first sealing ring provides a seal between the driving motor power module (2) and the second water channel, and wherein the plurality of heat dissipation pillars extend into the second water channel.
5. A motor controller according to claim 1, characterised in that it comprises a first output busbar (4) and a second output busbar (5);
one end of the first output busbar (4) is electrically connected with the generator power module (1), and the other end of the first output busbar is connected with a generator wire holder;
one end of the second output busbar (5) is electrically connected with the driving motor power module (2), and the other end of the second output busbar is used for connecting a driving motor wire holder.
6. The motor controller according to claim 1, characterized in that the motor controller comprises a rotary transformer wire harness (6) and a second sealing ring, wherein one end of the rotary transformer wire harness (6) is connected with a control board of the motor controller, the other end of the rotary transformer wire harness penetrates through the base (3) for connecting an external motor, and the second sealing ring provides sealing between the rotary transformer wire harness (6) and the base (3).
7. A motor controller according to any of claims 1-6, characterized in that it comprises an upper cover (7) and a high voltage direct current filter assembly, the upper cover (7) being connected to the base (3) and defining a first accommodation space, the high voltage direct current filter assembly being arranged in the first accommodation space;
the high-voltage direct-current filtering component comprises a magnetic ring, a filter support and an injection molding copper bar (8), the filter support is installed on the upper cover (7), the injection molding copper bar (8) is arranged on the filter support, the input end of the injection molding copper bar (8) is used for being connected with an external power supply, the output end of the injection molding copper bar (8) is used for being connected with a capacitor of the motor controller, and the magnetic ring is sleeved on the injection molding copper bar (8).
8. The motor controller according to claim 7, characterized in that the injection molded copper bar (8) comprises a main circuit output end and a branch circuit output end, wherein the main circuit output end is used for connecting the capacitor, and the branch circuit output end is used for connecting a standby power supply of the motor controller.
9. The motor controller of claim 7, characterized in that the high voltage direct current filter assembly comprises a filter housing (9), the filter housing (9) is connected with the filter bracket and defines a second accommodating space, and the magnetic ring is located in the second accommodating space; the filter base body (9) is provided with a containing groove for containing the capacitor.
10. A vehicle comprising a generator, a drive motor, and the motor controller of any one of claims 1-9, wherein the generator and the drive motor are both electrically connected to the motor controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010467883.2A CN113747736A (en) | 2020-05-28 | 2020-05-28 | Motor controller and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010467883.2A CN113747736A (en) | 2020-05-28 | 2020-05-28 | Motor controller and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113747736A true CN113747736A (en) | 2021-12-03 |
Family
ID=78724036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010467883.2A Pending CN113747736A (en) | 2020-05-28 | 2020-05-28 | Motor controller and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113747736A (en) |
-
2020
- 2020-05-28 CN CN202010467883.2A patent/CN113747736A/en active Pending
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