CN115864713A - Electric drive assembly and vehicle - Google Patents
Electric drive assembly and vehicle Download PDFInfo
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- CN115864713A CN115864713A CN202211483904.5A CN202211483904A CN115864713A CN 115864713 A CN115864713 A CN 115864713A CN 202211483904 A CN202211483904 A CN 202211483904A CN 115864713 A CN115864713 A CN 115864713A
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- 238000001816 cooling Methods 0.000 claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims description 45
- 239000000306 component Substances 0.000 claims description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- 239000003638 chemical reducing agent Substances 0.000 claims description 16
- 238000002955 isolation Methods 0.000 claims description 14
- 230000004888 barrier function Effects 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 239000008358 core component Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 10
- 239000000110 cooling liquid Substances 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 5
- 230000010354 integration Effects 0.000 abstract description 4
- 239000002826 coolant Substances 0.000 description 10
- 238000004891 communication Methods 0.000 description 6
- 239000012809 cooling fluid Substances 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The application provides an electricity drive assembly and vehicle. The electricity drives the assembly and includes motor assembly and controller assembly, and wherein, the motor assembly includes motor casing and installs the end cover on motor casing, with motor casing and end cover separately-designed, is favorable to the dismantlement and the change in later stage. Further, the end cover includes the installation cavity, encircles the cooling channel of installation cavity, water course entry and water course export, and wherein, water course entry and water course export all communicate with cooling channel. The installation cavity is arranged on the end cover, partial functional components can be integrated to improve the integration level of the electric drive assembly, the cooling channel is arranged on the end cover, and when cooling liquid flows through the cooling channel, the functional components integrated on the end cover can be cooled simultaneously, so that the cooling efficiency is improved. Above-mentioned controller assembly includes electronic component, and its holding has further improved the integrated level of electricity drive assembly in the installation cavity of above-mentioned end cover, and with the controller assembly integration on the end cover, is favorable to the later stage to be dismantled in order to inspect, maintain or change.
Description
Technical Field
The application relates to the field of auto parts, in particular to an electric drive assembly integrating a speed reducer assembly on a motor end cover and a vehicle adopting the electric drive assembly.
Background
With the release and implementation of the policies related to the new energy automobile, at present, in order to save the volume of the electric drive assembly and further facilitate the layout of the whole automobile, higher requirements are put forward on the power, the cost, the weight, the reliability and the like of the electric drive assembly of the new energy automobile. In the prior art, the integrated arrangement of the electric drive controller and the electric machine of the electric drive assembly of the new energy vehicle is usually to integrate the electric drive controller in the housing of the speed reducer or in the housing of the electric machine. However, the electronic components of the electric drive controller are very vulnerable or have faults, and when the electric drive controller needs to be repaired or even replaced, the electric drive controller cannot be independently disassembled or replaced due to the fact that the electric drive controller is integrated on the speed reducer shell or the motor shell.
Disclosure of Invention
The application provides an electricity drive assembly and vehicle to the unable independent dismantlement of electricity drive controller that solves among the correlation technique electricity drive assembly and change, and the unable integrated cooling water course is with the problem of cooling down the controller subassembly simultaneously.
In order to solve the above technical problem, in one aspect of the present application, an electric drive assembly is provided, which includes a motor assembly and a controller assembly, where the motor assembly includes a motor housing and an end cover installed on the motor housing; the end cover comprises an installation cavity, a cooling channel surrounding the installation cavity, a water channel inlet and a water channel outlet, wherein the water channel inlet and the water channel outlet are communicated with the cooling channel; the controller assembly is installed on the end cover and comprises an electronic component, and the electronic component is contained in the installation cavity.
Specifically, an isolating inner ring baffle and an isolating outer ring baffle are convexly arranged in the mounting cavity, wherein the isolating inner ring baffle and the isolating outer ring baffle are arranged at intervals, and the isolating inner ring baffle is positioned in the isolating outer ring baffle; the cooling channel comprises a leading-in channel, an inner ring channel, a communicating channel, an outer ring channel and a leading-out channel which are communicated with each other; the inner ring channel and the outer ring channel are respectively arranged in the isolating inner ring baffle and the isolating outer ring baffle; the leading-in channel is connected with the water channel inlet and the outer ring channel; the communicating channel is connected with the inner ring channel and the outer ring channel; the leading-out channel is connected with the inner ring channel connection and the water channel outlet.
Specifically, the mounting cavity is divided into a first sub-mounting cavity and a second sub-mounting cavity which are positioned on two sides of the isolating outer ring baffle by the isolating inner ring baffle and the isolating outer ring baffle; the electronic assembly comprises a capacitor core assembly and an IGBT assembly; wherein the capacitor core assembly is mounted in the first sub-mounting cavity and the IGBT assembly is mounted in the second sub-mounting cavity.
Specifically, the electronic assembly further includes a driving integrated board; the capacitor core assembly and the IGBT assembly are both connected with the driving integrated plate.
Specifically, the capacitor core assembly comprises a plurality of capacitor cores, capacitor positive copper bars and capacitor negative copper bars, and each capacitor positive copper bar and each capacitor negative copper bar are connected with each capacitor core.
Specifically, the IGBT assembly comprises a plurality of single-tube IGBT assemblies, each single-tube IGBT assembly comprises a single-tube IGBT, and a pressing plate and a ceramic plate which are connected with the single-tube IGBT, and the pressing plate and the ceramic plate are fixedly connected with the end cover; and the pin of each single-tube IGBT is fixedly connected to the drive integrated plate.
Specifically, the isolating inner ring baffle, the isolating outer ring baffle, the inner ring channel and the outer ring channel are all annular; the inner ring channel and the outer ring channel are arranged along the surrounding direction of the isolation inner ring baffle and the isolation outer ring baffle respectively.
Specifically, the inner ring channel and the outer ring channel are arranged in concentric rings.
Specifically, the electric drive assembly further comprises a bearing mounted on a side of the end cover remote from the mounting cavity.
Specifically, the motor shell is provided with a cooling inlet, a cooling outlet and a water channel for connecting the cooling inlet and the cooling outlet; the motor shell is further provided with a motor water inlet and a motor water outlet, the motor water inlet is connected with the cooling inlet and the water channel inlet, and the motor water outlet is connected with the water channel outlet and the water channel.
Specifically, the electric drive assembly further comprises a speed reducer assembly, the speed reducer assembly comprises a speed reducer front end cover, the motor shell is in a cylindrical shape with two open ends, and the speed reducer front end cover and the end covers are respectively fixed at two opposite ends of the motor shell.
In another aspect of the present application, a vehicle is provided that includes an electric drive assembly as described above.
The beneficial effect of this application is: the application provides an electricity drive assembly includes motor casing and installs the end cover on motor casing, and the controller assembly is installed on motor end cover, is favorable to separately designing controller and end cover the same with motor casing, and the later stage of being convenient for is dismantled in order to inspect, maintain or change. The end cover comprises an installation cavity, a cooling channel surrounding the installation cavity, a water channel inlet and a water channel outlet, wherein the water channel inlet and the water channel outlet are communicated with the cooling channel. The controller assembly comprises an electronic component which is accommodated in the mounting cavity, so that partial functional components can be integrated to improve the integration level of the electric drive assembly, and when cooling liquid flows through the cooling channel, the functional components of the controller assembly integrated on the end cover can be simultaneously cooled, and the cooling efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural view of an embodiment of an electric drive assembly provided herein that includes an electric machine assembly including an end cap, a cooling passage, and a bearing, and a controller assembly;
FIG. 2 is a schematic view of the structure of FIG. 1 with the end cap removed;
FIG. 3 is a schematic structural view of the end cap, bearing and controller assembly of FIG. 1;
FIG. 4 is a structural schematic diagram of one perspective of the end cover of FIG. 3, wherein FIG. 4 is a partial cross-sectional view for visual representation of cooling passages;
FIG. 5 is a structural schematic diagram of one perspective of the end cap of FIG. 3;
fig. 6 is a schematic view of a part of the structure of fig. 3.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work according to the embodiments of the present application are within the scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
In the embodiments of the present application, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In one aspect of the present application, an electric drive assembly is provided. Referring to fig. 1-3, fig. 1 is a schematic structural view of an embodiment of an electric drive assembly provided herein, the electric drive assembly including an electric machine assembly and a controller assembly, the electric machine assembly including an end cover, a cooling channel, and a bearing; FIG. 2 is a schematic view of the structure of FIG. 1 with the end cap removed; FIG. 3 is a schematic view of the end cap, bearing and controller assembly of FIG. 1; in one embodiment, the electric drive assembly includes an electric motor assembly 1 and a controller assembly 2. Wherein, motor assembly 1 includes motor casing 11 and installs end cover 12 on motor casing 11, and controller assembly 2 is installed on the end cover 12 of motor, is favorable to separately designing controller assembly 2 and end cover 12 and motor casing 11, and the later stage of being convenient for is dismantled in order to inspect, maintain or change. End cover 12 includes a mounting cavity 121, a cooling channel 122 surrounding mounting cavity 121, a waterway inlet 123 and a waterway outlet 124, wherein waterway inlet 123 and waterway outlet 124 are both in communication with cooling channel 122.
It should be noted that the cooling fluid, such as water, in the cooling channel 122 is used for absorbing heat generated by heating of the electronic components of the electric drive assembly to achieve the cooling effect. At the same time, however, the cooling channels 122 need to be well sealed to avoid leakage of cooling fluid or other short circuiting of the electronic components. Thus, the cooling passages 122 are internal to the end cover 12, rather than externally exposed passages.
The controller assembly 2 includes electronic components which are accommodated in the mounting cavity 121 so that part of the functional components can be integrated to improve the integration of the electric drive assembly, and the functional components of the controller assembly 2 integrated on the end cover 12 can be simultaneously cooled by the cooling fluid flowing through the cooling passage 122, thereby improving the cooling efficiency.
Specifically, referring to FIGS. 4-6, FIG. 4 is a schematic view of the end cap of FIG. 3 from a perspective, wherein FIG. 4 is a partial sectional view for the purpose of visually illustrating the cooling passages; FIG. 5 is a structural schematic diagram of one perspective of the end cap of FIG. 3; fig. 6 is a schematic structural view of a part of the component in fig. 3. An isolation inner ring baffle 1211 and an isolation outer ring baffle 1212 are convexly arranged in the mounting cavity 121, wherein the isolation inner ring baffle 1211 and the isolation outer ring baffle 1212 are arranged at intervals, and the isolation inner ring baffle 1211 is located in the isolation outer ring baffle 1212. The cooling passage 122 includes an inlet passage 1221, an inner ring passage 1222, a communication passage (not shown), an outer ring passage 1223, and an outlet passage 1224 that communicate with each other, wherein the inner ring passage 1222 and the outer ring passage 1223 are disposed in the inner and outer ring baffles 1211 and 1212, respectively. It is worth noting that the inner ring 1211 and the outer ring 1212 are only directly visible to the eye, and the inner ring passage 1222 and the outer ring passage 1223 are disposed within the inner ring 1211 and the outer ring 1212, and cannot be directly visible to the eye. The inlet passage 1221 and the outlet passage 1224 are not visible, and are labeled in the schematic view to better explain the communication relationship of the water paths.
More specifically, inlet passage 1221 connects waterway inlet 123 and outer ring passage 1223, the communicating passage connects inner ring passage 1222 and outer ring passage 1223, and outlet passage 1224 connects inner ring passage 1222 and waterway outlet 124.
It can be seen that the coolant enters the inlet passage 1221 from the waterway inlet 123, flows into the outer ring passage 1223 through the inlet passage 1221, and because the communication passage communicates the outer ring passage 1223 with the inner ring passage 1222, the coolant can enter the inner ring passage 1222 from the outer ring passage 1223 through the communication passage, flows through the inner ring passage 1222, enters the outlet passage 1224, and then exits from the waterway outlet 124 connected to the outlet passage 1224, so as to cool and dissipate heat from the functional component integrated in the end cover 12, such as the controller assembly 2, to improve heat dissipation efficiency.
To facilitate the control of the filling and discharging of the cooling fluid, in some embodiments, the end cap 12 further includes a peripheral side wall 125, and the waterway inlet 123 and the waterway outlet 124 are both disposed on the peripheral side wall 125. Also, the waterway inlet 123 and the waterway outlet 124 are each provided with a sealing cap 1225 for sealing the waterway inlet 123 and the waterway outlet 124. Thus, when it is desired to test, clean the cooling passages 122; or when the water channel inlet 123 and the water channel outlet 124 are not needed, the sealing cover 1225 can cover or open the water channel inlet 123 and the water channel outlet 124 according to needs.
The isolating inner ring baffle 1211 and the isolating outer ring baffle 1212 divide the installation cavity 121 into a first sub-installation cavity 1213 and a second sub-installation cavity 1214 which are positioned at two sides of the isolating outer ring baffle 1212, and the electronic assembly comprises a capacitor core assembly 21 and an IGBT assembly 22. Wherein capacitor core assembly 21 is mounted in first sub-mounting cavity 1213 and IGBT assembly 22 is mounted in second sub-mounting cavity 1214. The mounting cavity 121 is divided into the first sub-mounting cavity 1213 and the second sub-mounting cavity 1214 to accommodate different functional components, so that electromagnetic influence between different electronic elements is isolated, arrangement of the functional components is neat and clear, operation, installation, maintenance and the like are easy, and the reliability degree is high. In addition, the capacitor core assembly 21 and the IGBT assembly 22 are respectively mounted in the first sub-mounting cavity 1213 and the second sub-mounting cavity 1214, and at this time, the cooling liquid flowing through the inner ring water passage 1222 and the outer ring water passage 1223 respectively disposed in the inner ring barrier 1211 and the outer ring barrier 1212 can cool and dissipate the capacitor core assembly 21 and the IGBT assembly 22 at the same time, thereby improving the cooling efficiency.
In some embodiments, a mounting block 1216 is further protruded into the first sub-mounting cavity 1213 to mount the capacitor core assembly 21 more firmly. Mounting baffle 1216 surrounds the outer perimeter of isolation outer ring baffle 1212 and conforms to the shape of isolation outer ring baffle 1212. At this point, the capacitor core assembly 21 is installed between the mounting shield 1216 and the isolating outer ring shield 1212.
In addition, a third sub-mounting cavity 1215 is enclosed by barrier inner ring 1211. The motor assembly 1 further comprises a motor rotary transformer 13, and the motor rotary transformer 13 is fixedly installed in the third sub-installation cavity and used for acquiring angle and rotating speed signals of the motor and transmitting the signals to a control component, such as a driving integrated plate 23 of the controller assembly 2 described below.
Specifically, the electronic assembly further includes a driving integrated plate 23, and the capacitor core assembly 21 and the IGBT assembly 22 are both connected to the driving integrated plate 23. In addition, the electric drive assembly further includes a three-phase copper bar 25 mounted and secured to the end cap 12 for supplying current to the components of the electric drive assembly. The driving integrated plate 23 is reserved with a receiving through hole. Understandably, the three-phase copper bar 25 is accommodated in the accommodating through hole, so that the three-phase copper bar 25 transmits the three-phase current inverted by the IGBT assembly 22 to the motor, and the capacitor core assembly 21 and the IGBT assembly 22 are connected to the driving integrated plate 23, so that the driving integrated plate 23 integrates the direct-current copper bar and the three-phase copper bar 25, the use of the switching copper bar is reduced, the wiring harness and the plug are reduced, and the part cost is reduced.
Further, the capacitor core assembly 21 includes a plurality of capacitor cores 211, a capacitor positive copper bar 212 and a capacitor negative copper bar 213, and each capacitor positive copper bar 212 and each capacitor negative copper bar 213 are connected to each capacitor core 211. It can be understood that the capacitor core 211, the capacitor positive copper bar 212 and the capacitor negative copper bar 213 are integrally formed by machining and then are connected with each other to form the capacitor core assembly 21; and then encapsulated between the mounting baffle 1216 and the isolating outer ring baffle 1212 of the end cap 12, thereby avoiding the need for a plastic housing encapsulation as in the prior art capacitor core assembly 21, increasing the heat dissipation of the capacitor core assembly 21 and enabling the capacitor core assembly 21 to be arranged in a design space. In addition, the positive and negative PIN needles on the capacitor core subassembly are fixed on the driving integrated plate 23 through soldering, so that the use of a capacitor shell can be reduced, the heat dissipation is increased, and the cost is reduced.
More specifically, the IGBT module 22 includes a plurality of single-tube IGBT modules 221, and G, C, and E pins of each single-tube IGBT module 221 are fixedly connected to the driving integrated board 23. In addition, the IGBT module 22 further includes a pressing plate 222 and a ceramic plate 223, and the end of the single-tube IGBT module opposite to the end connected to the driving integrated plate 23 is fixed to the end cap 12 through the pressing plate 222 and the ceramic plate 223, so as to realize the mounting and fixing of the IGBT module 22.
In one embodiment, to provide a more uniform distribution of the mounting cavity 121 area in the end cap 12, and to facilitate machining and fabrication, the inner ring 1211, the outer ring 1212, the inner ring 1222, and the outer ring 1223 baffles are annular. Moreover, the inner ring channel 1222 and the outer ring channel 1223 are respectively arranged along the surrounding direction of the isolating inner ring baffle 1211 and the isolating outer ring baffle 1212, so that the inner ring channel 1222 and the outer ring channel 1223 are more in line with the shapes of the isolating inner ring baffle 1211 and the isolating outer ring baffle 1212, and the design space is saved.
Preferably, the inner race passage 1222 and the outer race passage 1223 are arranged in concentric rings.
Further, the controller assembly 2 further includes a housing cover 24, and a through hole 241 and a high-voltage bus bar interface 242 are provided on the housing cover 24, wherein the high-voltage bus bar interface 242 is externally connected to the vehicle-mounted battery, and is used for transmitting high-voltage electricity of the vehicle-mounted battery to the motor assembly 1 and the controller assembly 2. In addition, the drive integrated plate 23 also includes a low pressure insert 231. The through hole 241 is used for receiving the driving low voltage plug-in 231 to connect with the VCU of the whole vehicle, that is, the power system of the whole vehicle to transmit the control signal.
In one embodiment, the electric drive assembly of the present application further includes a bearing 14, the bearing 14 being mounted on a side of the end cap 12 remote from the mounting cavity 121. The bearing 14 is connected to the motor shaft so as to reduce the friction coefficient during power transmission and to maintain the shaft center position fixed. In addition, the bearing 14 is mounted on the end cover 12, and the cooling liquid channel on the end cover 12 can be used for cooling the bearing, so that the additional arrangement of the cooling liquid channel for cooling the bearing is avoided, the design space is saved, and the cost is reduced. In some specific embodiments, the side of the end cap 12 facing away from the mounting cavity 121 is further provided with a cover plate 126, and in this case, the bearing 14 is mounted on the cover plate 126. Moreover, when the cooling water channel is designed as a channel exposed outside the end cover 12, the cover plate 126 can block and seal the cooling channel 122, so as to prevent the cooling liquid from causing short circuit of the electronic component due to leakage or other reasons.
In one embodiment, the motor housing 11 is provided with a cooling inlet 111, a cooling outlet 112, and a water channel (not shown) connecting the cooling inlet 111 and the cooling outlet 112, wherein the water channel is located inside the motor housing 11. The motor housing 11 further includes a motor water outlet 113 and a motor water inlet 114, wherein the motor water outlet 113 is connected to the water channel and the water channel outlet 124, and the motor water inlet 114 is connected to the cooling inlet 111 and the water channel inlet 123. In addition, the water path may be curved or spiral for the purpose of achieving a better heat dissipation effect by the circulation time of the cooling liquid and the contact area between the cooling liquid and the electronic component.
It will be appreciated that after the cooling fluid enters through the cooling inlet 111, a portion of the cooling fluid enters the water channel of the motor through the motor water inlet 114 to cool the motor components; the other part enters the guide passage 1221 through the motor water inlet 114 and then enters the outer ring passage 1223; when the outer ring passage 1223 is filled with the coolant, the coolant enters the inner ring passage 1222 through the communication passage; as the inner ring channel 1222 is filled with the coolant, the coolant flows from the outlet channel 1224 to the motor outlet 113 and then enters the water channel inside the motor housing 11; finally, the coolant flows through the water channels and out the cooling outlets 112. Therefore, by communicating the coolant inside the electric drive assembly through the channel, the IGBT component 22, the capacitor core component 21, and the bearing 14 can be cooled at the same time, and then the coolant flows through the water channel inside the motor housing 11 and finally flows out from the cooling outlet 112, thereby reducing the cooling path of the coolant, improving the heat dissipation efficiency, and reducing the cost of the water channel.
In one embodiment, the electric drive assembly further includes a speed reducer assembly 4, the speed reducer assembly 4 includes a speed reducer front cover 41, the motor housing 11 is in a cylindrical shape with two open ends, and the speed reducer front cover 41 and the end cover 12 are respectively fixed at two opposite ends of the motor housing 11. That is to say, the electricity drives the assembly and has still integrateed reduction gear assembly 4 to, reduction gear assembly 4 and the end cover 41 that has integrateed controller assembly 2 are fixed with the relative both ends of motor casing 11 respectively, have greatly improved the integrated level that drives the assembly, have reduced the volume that drives the assembly, are favorable to whole car and arrange.
In another aspect of the present application, a vehicle is provided that includes an electric drive assembly as described above. The electric drive assembly is described in detail above and therefore will not be described in detail here. The vehicle that this application provided also has above-mentioned electricity and drives the integrated level height of assembly, and the good reliability, light in weight etc. advantage.
In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, mechanism, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, mechanisms, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure, which are directly or indirectly applied to other related technical fields, are included in the scope of the present disclosure.
Claims (11)
1. An electric drive assembly comprises a motor assembly and a controller assembly, and is characterized in that,
the motor assembly comprises a motor shell and an end cover arranged on the motor shell;
the end cover comprises an installation cavity, a cooling channel surrounding the installation cavity, a water channel inlet and a water channel outlet, wherein the water channel inlet and the water channel outlet are communicated with the cooling channel;
the controller assembly is installed on the end cover, and the controller assembly comprises an electronic component which is accommodated in the installation cavity.
2. The electric drive assembly of claim 1, wherein an isolating inner ring baffle and an isolating outer ring baffle are disposed in the mounting cavity, wherein the isolating inner ring baffle and the isolating outer ring baffle are spaced apart and the isolating inner ring baffle is disposed within the isolating outer ring baffle;
the cooling channel comprises a leading-in channel, an inner ring channel, a communicating channel, an outer ring channel and a leading-out channel which are communicated with each other; wherein the content of the first and second substances,
the inner ring channel and the outer ring channel are respectively arranged in the isolation inner ring baffle and the isolation outer ring baffle;
the leading-in channel is connected with the water channel inlet and the outer ring channel;
the communicating channel is connected with the inner ring channel and the outer ring channel;
the lead-out channel is connected with the inner ring channel and the water channel outlet.
3. The electric drive assembly of claim 2, wherein the isolating inner ring barrier and the isolating outer ring barrier separate the mounting cavity into a first sub-mounting cavity and a second sub-mounting cavity on opposite sides of the isolating outer ring barrier;
the electronic component comprises a capacitor core component and an IGBT component; wherein the capacitor core assembly is mounted within the first sub-mounting cavity and the IGBT assembly is mounted within the second sub-mounting cavity.
4. The electrical drive assembly of claim 3 wherein the electronics assembly further comprises a drive integrated plate, the capacitor core assembly and the IGBT assembly each being coupled to the drive integrated plate.
5. The electric drive assembly of claim 4 wherein said capacitor core assembly includes a plurality of capacitor cores, positive capacitor copper bars and negative capacitor copper bars, each of said positive capacitor copper bars and each of said negative capacitor copper bars being connected to each of said capacitor cores.
6. The electric drive assembly according to claim 4 or 5, wherein the IGBT assembly comprises a plurality of single-tube IGBT assemblies, each single-tube IGBT assembly comprises a single-tube IGBT, and a pressing plate and a ceramic plate connected with the single-tube IGBT, and the pressing plate and the ceramic plate are fixedly connected with the end cover; and the pin of each single-tube IGBT is fixedly connected to the drive integrated plate.
7. The electric drive assembly as set forth in any one of claims 2-5 wherein said isolating inner race baffle, said isolating outer race baffle, said inner race passage and said outer race passage are annular;
the inner ring channel and the outer ring channel are arranged along the surrounding direction of the isolation inner ring baffle and the isolation outer ring baffle respectively.
8. The electric drive assembly as set forth in claim 7 wherein said inner race channel and said outer race channel are arranged in concentric rings.
9. The electric drive assembly of any of claims 1-5, wherein the electric machine housing is provided with a cooling inlet, a cooling outlet, and a water passageway connecting the cooling inlet and the cooling outlet;
the motor shell is further provided with a motor water inlet and a motor water outlet, the motor water inlet is connected with the cooling inlet and the water channel inlet, and the motor water outlet is connected with the water channel outlet and the water channel.
10. The electric drive assembly as recited in any one of claims 1-5, further comprising a speed reducer assembly, the speed reducer assembly including a speed reducer front end cap, the motor housing being cylindrical with open ends, the speed reducer front end cap and the speed reducer end cap being secured to opposite ends of the motor housing.
11. A vehicle comprising an electric drive assembly as claimed in any one of claims 1 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211483904.5A CN115864713A (en) | 2022-11-24 | 2022-11-24 | Electric drive assembly and vehicle |
| PCT/CN2023/086672 WO2024108861A1 (en) | 2022-11-24 | 2023-04-06 | Electric drive assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211483904.5A CN115864713A (en) | 2022-11-24 | 2022-11-24 | Electric drive assembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115864713A true CN115864713A (en) | 2023-03-28 |
Family
ID=85665988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211483904.5A Pending CN115864713A (en) | 2022-11-24 | 2022-11-24 | Electric drive assembly and vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115864713A (en) |
| WO (1) | WO2024108861A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024108861A1 (en) * | 2022-11-24 | 2024-05-30 | 浙江凌昇动力科技有限公司 | Electric drive assembly and vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013118670A1 (en) * | 2012-02-06 | 2013-08-15 | 三菱電機株式会社 | Mechanically and electronically integrated module |
| TWI656717B (en) * | 2017-11-30 | 2019-04-11 | 財團法人工業技術研究院 | Drive structure connecting motor cooling structure |
| CN109367376B (en) * | 2018-11-26 | 2024-03-19 | 中国科学院电工研究所 | Integrated system of motor and controller |
| CN215186324U (en) * | 2021-03-05 | 2021-12-14 | 泉州开普勒车用电机有限公司 | Motor of integrated electrical system |
| CN215378700U (en) * | 2021-03-05 | 2021-12-31 | 福建艺达电驱动股份有限公司 | Motor of integrated machine controller |
| CN115173638A (en) * | 2022-06-17 | 2022-10-11 | 中国第一汽车股份有限公司 | Axial motor system and vehicle with same |
| CN115864713A (en) * | 2022-11-24 | 2023-03-28 | 浙江凌昇动力科技有限公司 | Electric drive assembly and vehicle |
-
2022
- 2022-11-24 CN CN202211483904.5A patent/CN115864713A/en active Pending
-
2023
- 2023-04-06 WO PCT/CN2023/086672 patent/WO2024108861A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024108861A1 (en) * | 2022-11-24 | 2024-05-30 | 浙江凌昇动力科技有限公司 | Electric drive assembly and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024108861A1 (en) | 2024-05-30 |
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