CN111823853A - Dual-drive system and vehicle - Google Patents
Dual-drive system and vehicle Download PDFInfo
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- CN111823853A CN111823853A CN201910300503.3A CN201910300503A CN111823853A CN 111823853 A CN111823853 A CN 111823853A CN 201910300503 A CN201910300503 A CN 201910300503A CN 111823853 A CN111823853 A CN 111823853A
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- assembly
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- speed reducer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
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- Combustion & Propulsion (AREA)
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a dual-drive system and a vehicle, wherein the dual-drive system comprises: a motor assembly, the motor assembly comprising: the motor comprises a first motor and a second motor, wherein the first motor is positioned on the left side, the second motor is positioned on the right side, and a motor shell of the first motor and a motor shell of the second motor are constructed into double motor shells; a speed reducer assembly, the speed reducer assembly comprising: the first speed reducer is located on the left side of the first motor and connected with the first motor, and the second speed reducer is located on the right side of the second motor and connected with the second motor. According to the wheel-side dual-power driving system, the shell of the first motor and the shell of the second motor are constructed into the dual-motor shell, so that the dual-power driving system is compact in structure, high in reliability and good in applicability.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a dual-drive system and a vehicle.
Background
In the related art, the design of the joints of all parts in the double-wheel-side driving system is simple and crude, the installation is complex, the whole arrangement is not compact enough, the vacant space is large, meanwhile, the requirement of a high-rotating-speed motor cannot be met by the primary speed reducing mechanism of the existing double-wheel-side driving system, and the applicability is poor.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a dual-drive system, in which a casing of a first motor and a casing of a second motor are configured as a double-motor casing, so that the dual-drive system has a compact structure, high reliability, and good applicability.
The invention also provides a vehicle with the dual-drive system.
The dual drive system according to the present invention comprises: a motor assembly, the motor assembly comprising: the motor comprises a first motor and a second motor, wherein the first motor is positioned on the left side, the second motor is positioned on the right side, and a motor shell of the first motor and a motor shell of the second motor are constructed into double motor shells; a speed reducer assembly, the speed reducer assembly comprising: the first speed reducer is located on the left side of the first motor and connected with the first motor, and the second speed reducer is located on the right side of the second motor and connected with the second motor.
According to the dual-drive system, the motor shell of the first motor and the motor shell of the second motor are constructed into the double motor shells, so that the arrangement of the first motor and the second motor is more compact, the space utilization rate of the dual-drive system is improved, the arrangement and connection relation between the first motor and the second motor in the dual-drive system is simplified, the stability and reliability of the dual-drive system are ensured, and the applicability of the dual-drive system is enhanced.
According to an embodiment of the present invention, the dual motor case includes: an outer case defining a motor mounting space; a baffle plate disposed within the outer housing to divide the motor installation space into a first motor installation space and a second motor installation space; wherein the rotor and the stator of the first motor are disposed in the first motor installation space, and the rotor and the stator of the second motor are disposed in the second installation space.
According to one embodiment of the invention, a first bearing mounting seat is arranged on the left side of the baffle plate, a second bearing mounting seat is arranged on the right side of the baffle plate, the first bearing mounting seat is suitable for fixing a right bearing of a motor shaft of the first motor, and the second bearing mounting seat is suitable for fixing a left bearing of a motor shaft of the second motor.
According to one embodiment of the present invention, the case of the first decelerator, the double motor case, and the case of the second decelerator are integrally formed.
According to one embodiment of the invention, the dual-drive system further comprises: and the electric control assembly is arranged between the first speed reducer and the second speed reducer and is electrically connected with the motor assembly.
According to one embodiment of the present invention, the electric control assembly and the dual motor case are arranged in the front-rear direction.
According to one embodiment of the present invention, the first speed reducer and the second speed reducer are spaced apart in the left-right direction and are connected to the first motor and the second motor of the motor assembly, respectively, and the motor assembly, the first speed reducer, and the second speed reducer define a housing space in which the electronic control assembly is housed.
According to one embodiment of the invention, a first terminal is arranged on a shell of the electronic control assembly, a second terminal opposite to the first terminal is arranged on the double-motor shell, and the first terminal and the second terminal are matched in an inserting mode.
According to one embodiment of the invention, the dual-drive system further comprises: a cooling device adapted to cool at least one of the motor assembly, the reducer assembly and the electronic control assembly.
According to one embodiment of the invention, the cooling device comprises: water-cooling device and the cold cooling device of oil, water-cooling device is suitable for right automatically controlled assembly with the motor assembly cools off, the cold cooling device of oil is suitable for right the reduction gear assembly cools off.
According to an embodiment of the present invention, the water cooling device includes: the water pump is connected with the cooling water channel so as to pump cooling water into the cooling water channel; wherein the dual motor case is configured in a double-layered structure to form the cooling water passage.
According to one embodiment of the present invention, the double-layer structure includes: the cooling water channel comprises an outer shell part and an inner lining part which are spaced apart, wherein a bulge is arranged on the inner side wall of the outer shell part and/or the outer side wall of the inner lining part, and the outer shell part, the inner lining part and the bulge define the cooling water channel.
According to one embodiment of the invention, the cooling device comprises: water-cooling device and the cold cooling device of oil, water-cooling device is suitable for right automatically controlled assembly cools off, the cold cooling device of oil is suitable for right the reduction gear assembly with motor assembly cools off.
According to one embodiment of the present invention, any plurality of the double motor case, the case of the first reduction gear, the case of the second reduction gear, and the case of the electronic control assembly are integrally formed.
According to one embodiment of the invention, the first reduction gear and the second reduction gear are both multi-stage reduction gears.
The vehicle according to the present invention is briefly described below.
According to the vehicle provided with the dual-drive system of the embodiment, the vehicle provided with the dual-drive system of the embodiment occupies small space, and the vehicle is more reasonable and compact in structural arrangement, high in reliability and good in stability.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic block diagram of a dual drive system according to an embodiment of the present invention;
FIG. 2 is a top view of a dual drive system according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of section A-A of FIG. 2;
FIG. 4 is a schematic illustration of a vehicle according to an embodiment of the present invention.
Reference numerals:
in the case of the vehicle 1000, the vehicle,
the dual-drive system 1 is provided with a dual-drive system,
the motor assembly (11) is provided with a motor,
a first motor 111, a first motor stator 1111, a first motor rotor 1112, a first motor shaft 1113, a first motor bearing 1114,
a second motor 112, a second motor stator 1121, a second motor rotor 1122, a second motor shaft 1123, a second motor bearing 1124,
the reducer assembly 12, the first reducer 121, the second reducer 122,
an electric control assembly 13, a cooling device 14, a water inlet 141 and a water outlet 142.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A dual drive system according to an embodiment of the invention is described below with reference to figures 1-3.
As shown in fig. 1, 2 and 3, a dual drive system 1 according to the present invention includes a motor assembly 11 and a reducer assembly 12, where the motor assembly 11 includes a first motor 111 located on a left side and a second motor 112 located on a right side, a motor case of the first motor 111 and a motor case of the second motor 112 are configured as a double motor case 110, and the reducer assembly 12 includes a first reducer 121 and a second reducer 122, the first reducer 121 is located on the left side of the first motor 111 and connected to the first motor 111, and the second reducer 122 is located on the right side of the second motor 112 and connected to the second motor 112.
According to the dual-drive system 1 of the present invention, the first motor 111 is adapted to be connected to the first speed reducer 121, the second motor 112 is adapted to be connected to the second speed reducer 122, after the first motor 111 and the second motor 112 convert the electric energy into kinetic energy, the kinetic energy is input to the left and right wheels of the vehicle after being reduced in speed and increased in torque through the first speed reducer 121 and the second speed reducer 122, respectively, the housings of the first motor 111 and the second motor 112 are configured as the dual-motor housing 110, which is convenient for the arrangement and installation of the first motor 111 and the second motor 112, and reduces the parts used for connecting the first motor 111 and the second motor 112 in the motor assembly 11.
Compared with the scheme that the first motor housing and the second motor housing are separately arranged, the double motor housing 110 of the invention can more fully utilize the space, and reduce the occupied space of the motor assembly 11, the first motor stator 1111 and the first motor rotor 1112 of the first motor 111, and the second motor stator 1121 and the second motor rotor 1122 of the second motor 112 can be accommodated in the double motor housing 110, and the double motor housing 110 can be used as the housing of the first motor 111 and the second motor 112 at the same time, so that the arrangement of the first motor 111 and the second motor 112 is more compact, and meanwhile, the connecting parts of the first motor 111 and the second motor 112 are also reduced, so that the arrangement of the dual-drive system 1 is more reasonable.
According to the dual-drive system 1, the first motor 111 and the second motor 112 are both arranged in the dual-motor shell 110, but the first motor 111 and the second motor 112 both work independently, and there is no connection relationship between the output shaft of the first motor 111 and the output shaft of the second motor 112, that is, the first motor 111 and the second motor 112 can work independently, and the dual-drive system 1 does not need to be provided with a differential mechanism, and in the turning process of the vehicle, the left and right wheels of the vehicle can turn smoothly by controlling the rotating speeds of the first motor 111 and the second motor 112, and the dual-drive system 1 is not provided with the differential mechanism, so that the structure is optimized, and the arrangement of the dual-drive system 1 is simpler.
According to the dual-drive system 1 of the present invention, the motor housing of the first motor 111 and the motor housing of the second motor 112 are configured as the dual-motor housing 110, so that the arrangement of the first motor 111 and the second motor 112 is more compact, the space utilization rate of the dual-drive system 1 is improved, the arrangement and connection relationship between the first motor 111 and the second motor 112 in the dual-drive system 1 is simplified, the dual-drive system 1 is ensured to be stable and reliable, and the applicability of the dual-drive system 1 is enhanced.
According to an embodiment of the present invention, the dual motor case 110 includes an outer case 1101 and a barrier 1102, wherein the outer case 1101 defines a motor installation space, the barrier 1102 is provided in the outer case 1101 to divide the motor installation space into a first motor installation space and a second motor installation space, a first motor stator 1111 and a first motor rotor 1112 are provided in the first motor installation space, the first motor stator 1111 is provided at an outer periphery of the first installation space, the first motor rotor 1112 is arranged in an axial direction of the first installation space and extends to the left side, the first motor rotor 1112 is connected to a first motor shaft 1113, and a left end of the first motor shaft 1113 may be connected to the first reducer 121; second motor stator 1121 and second motor rotor 1122 are provided in the second motor mounting space, second motor stator 1121 is provided at the outer circumference of the second mounting space, second motor rotor 1122 is arranged in the axial direction in the second mounting space and extends to the right side, second motor rotor 1122 is connected to second motor shaft 1123, and the right end of second motor shaft 1123 may be connected to second reducer 122.
Through setting up the motor installation space in outer casing 1101, make double motor shell 110 can set up first motor 111 and second motor 112 simultaneously, first motor 111 sets up with the second motor 112 is coaxial, has simplified the arrangement of first motor 111 and second motor 112, has improved the space utilization of dual drive force system 1, has guaranteed that the installation of first motor 111 and second motor 112 is reliable.
According to one embodiment of the invention, a first bearing mount 1103 is provided to the left side of the barrier 1102, a second bearing mount 1104 is provided to the right side of the barrier 1102, the first bearing mount 1103 is adapted to secure a right bearing of the motor shaft of the first motor 111, and the second bearing mount 1104 is adapted to secure a left bearing of the second motor shaft 1123.
The baffle 1102 is suitable for separating a motor mounting space, a first bearing mounting seat 1103 and a second bearing mounting seat 1104 are respectively arranged at the left side and the right side of the baffle 1102, and the first bearing mounting seat 1103 and the second bearing mounting seat 1104 are used for mounting a bearing; the first motor shaft 1113 is fixed to the first motor rotor 1112, and the right end of the first motor shaft 1113 is fixed to the first bearing mounting base 1103 through the first motor bearing 1114 to be fixed to the baffle 1102; the second motor shaft 1123 is fixed to the second motor rotor 1122, and the left end of the second motor shaft 1123 is fixed to the second bearing mounting base 1104 through the second motor bearing 1124 so as to be fixed to the baffle 1102.
The baffle 1102 is provided to separate the motor installation space, and the baffle 1102 can also be used for installing bearings to ensure the reliability of the installation of the rotor and the motor shaft in the first motor 111 and the second motor 112.
According to an embodiment of the present invention, the housing of the first speed reducer 121, the housings of the dual motor case 110 and the second speed reducer 122 are integrally formed, and the housings of the first speed reducer 121 and the second speed reducer 122 and the dual motor case 110 are integrally formed, so that the integration level of the dual drive system 1 can be improved, the connection between the first speed reducer 121 and the first motor 111 and the connection between the second speed reducer 122 and the second motor 112 are more reliable and stable, and no separate fastening member is required for fastening, so that the space occupied by the dual drive system 1 and the number of components are reduced.
According to another embodiment of the present invention, the decelerator includes a first decelerator 121 and a second decelerator 122, the housing of the first decelerator 121 is a first decelerator housing, the housing of the second decelerator 122 is a second decelerator housing, wherein the first decelerator housing and the second decelerator housing are respectively disposed at two sides of the double motor casing 110, and the first decelerator housing, the second decelerator housing and the double motor casing 110 may be fixed by bolts. The split type design of casing of each part of dual drive system mesochite to connect through the fastener, reduce the manufacturing degree of difficulty of casing, practice thrift the cost.
According to an embodiment of the present invention, the dual-drive system 1 further includes an electronic control assembly 13, and the electronic control assembly 13 is disposed between the first speed reducer 121 and the second speed reducer 122 and electrically connected to the motor assembly 11.
As shown in fig. 1 and fig. 2, in an embodiment of the present invention, the electronic control assembly 13 may be fixedly connected to the first speed reducer 121 and the second speed reducer 122 by fasteners, and since the size of the first speed reducer 121 and the second speed reducer 122 in the length direction is larger than the size of the motor assembly 11 in the length direction, a part of space is left between the first speed reducer 121 and the second speed reducer 122, and the electronic control assembly 13 is disposed between the first speed reducer 121 and the second speed reducer 122, the space can be fully utilized, and the space utilization rate is improved; meanwhile, the electric control assembly 13 is arranged between the first speed reducer 121 and the second speed reducer 122, so that the speed reducer assembly 12 can protect the electric control assembly 13, the reliability of the electric control system is improved, and the electric control assembly 13 is prevented from being damaged by external force.
According to one embodiment of the invention, the electric control assembly 13 and the dual-motor housing 110 are arranged in the backward direction, so that the electric control assembly 13 can fully utilize the space of the dual-motor housing 110 in the forward and backward direction, and the arrangement of the dual-drive system 1 is optimized.
According to an embodiment of the present invention, the first speed reducer 121 and the second speed reducer 122 are spaced apart in the left-right direction, and the first speed reducer 121 and the second speed reducer 122 are respectively connected to the first motor 111 and the second motor 112 of the motor assembly 11, the first speed reducer 121 and the second speed reducer 122 define a receiving space for receiving the electronic control assembly 13, the first speed reducer 121 and the second speed reducer 122 are disposed on both sides of the motor assembly 11 in the width direction, the first speed reducer 121 and the second speed reducer 122 are larger than the motor assembly 11 in the length direction, a concave receiving space is formed between the motor assembly 11, the first speed reducer 121 and the second speed reducer 122, and the receiving space can be used for receiving the electronic control assembly 13, so that the structure of the dual-driving system is more compact, and the space utilization rate is improved
According to an embodiment of the present invention, a first terminal is disposed on the housing of the electronic control assembly 13, a second terminal is disposed on the dual motor housing 110 and directly opposite to the first terminal, the first terminal and the second terminal are in plug-in fit, the first terminal of the electronic control assembly 13 can be disposed on a side facing the motor assembly 11, the second terminal of the dual motor housing 110 is disposed on a side facing the electronic control assembly 13, and after the first terminal and the second terminal are in plug-in fit, three phase lines of the electronic control assembly 13 are connected with three phase lines of the motor assembly 11, so that the electronic control assembly 13 controls the motor assembly 11 to operate.
Wherein, first wiring end can be constructed into plug or slot, second wiring end can be constructed into slot or plug with first wiring end complex, through first wiring end and the cooperation of pegging graft of second wiring end between automatically controlled assembly 13 and the motor assembly 11, it is convenient to make the connection between automatically controlled assembly 13 and the motor assembly 11, and motor assembly 11 does not need the arrangement of three electric wires of overlength with the electricity connection of automatically controlled assembly 13, save the material on the one hand, the weight of dual drive system 1 has been reduced, on the other hand, it is convenient to make the dismantlement between automatically controlled assembly 13 and the motor assembly 11, the arrangement of circuit in the dual drive system 1 has been simplified, the reliability of wheel limit dual drive system has been improved.
According to an embodiment of the present invention, the dual-drive system 1 further includes a cooling device 14, the cooling device 14 is adapted to cool at least one of the motor assembly 11, the speed reducer assembly 12 and the electric control assembly 13, and the cooling device 14 can be used to cool the motor assembly 11, the electric control assembly 13 and the speed reducer assembly 12, so as to ensure the reliability of the dual-drive system 1.
According to an embodiment of the present invention, the cooling device 14 includes a water cooling device adapted to cool the electric control assembly 13 and the motor assembly 11, and an oil cooling device adapted to cool the reducer assembly 12.
Wherein, the water-cooled cooling device includes a water pump and a cooling water channel disposed in the dual motor case 110, the water pump is connected with the cooling water channel to pump cooling water into the cooling water channel, and the dual motor case 110 is constructed in a double-layer structure to form the cooling water channel.
Specifically, the dual motor casing 110 of the motor assembly 11 is a dual-layer structure, which may include an outer casing and an inner casing, the inner casing is disposed inside the outer casing, a cooling water channel is formed between the inner casing and the outer casing, cooling water may flow in the cooling water channel, and the flow of the cooling water in the cooling water channel is suitable for guiding heat of the inner casing out of the dual motor casing 110, so that the motor assembly 11 is cooled, and the reliability of the motor assembly 11 is ensured; the electric control assembly 13 is also provided with a cooling water channel, cooling water flows through the cooling water channel in the electric control assembly 13 to be suitable for cooling the electric control assembly 13 so as to ensure the reliability of the electric control assembly 13, and the oil cooling device is suitable for cooling the speed reducer assembly 12 so as to reduce the temperature of the speed reducer assembly 12 and ensure the stable and reliable work of the speed reducer assembly 12.
According to an embodiment of the present invention, the cooling water channel of the electric control assembly 13 may be connected to the cooling water channel of the electric motor assembly 11, and the water pump is adapted to provide power for the cooling water to flow through the cooling water channels of the electric motor assembly 11 and the electric control assembly 13, so as to simplify the arrangement of the cooling water channels and improve the cooling efficiency by connecting the electric control assembly 13 to the cooling water channel of the electric motor assembly 11.
According to one embodiment of the invention, the double-layer structure comprises a shell part and a lining part which are separated, wherein a bulge part is arranged on the inner side wall of the shell part and/or the outer side wall of the lining part, and the shell part, the lining part and the bulge part define the cooling water channel.
Wherein, shell portion and inside lining portion interval set up, the bellying can set up the lateral wall in shell portion and/or the inside wall of inside lining portion, be formed with the cooling water course that supplies the coolant liquid to flow between shell portion and inside lining portion, the area of contact of coolant liquid and shell portion and/or inside lining portion can be improved in the setting of bellying, the flow resistance of coolant liquid is increased, make coolant liquid increase when contacting with shell portion and inside lining portion, and then improve the radiating effect of dual drive system.
According to an embodiment of the present invention, the protrusions may be connected to the outer shell portion and the inner liner portion, respectively, to configure a water passage rib, and the water passage rib, the outer shell portion, and the inner liner portion collectively form the cooling water passage.
According to another embodiment of the present invention, the cooling device 14 includes a water cooling device and an oil cooling device, the water cooling device is adapted to cool the electronic control assembly 13, the oil cooling device is adapted to cool the speed reducer assembly 12 and the motor assembly 11, the motor assembly 11 and the speed reducer assembly 12 can be cooled by using lubricating oil, the cooling liquid channels between the speed reducer assembly 12 and the motor assembly 11 can be communicated with each other, the oil cooling device can cool the inside of the motor stator and the winding, the cooling speed of the oil cooling device is fast, and the cooling liquid can be recycled only by being filled once.
According to the dual-drive system 1 of the present invention, any plural of the dual-motor housing 110, the housing of the first speed reducer 121, the housing of the second speed reducer 122, the housing of the electronic control assembly 13, and the housing of the water pump are integrally formed, so as to improve the integration degree of the dual-drive system 1 and improve the space utilization rate.
Specifically, the dual-drive system 1 has the following schemes:
the housing of the first electric motor 111, the housing of the second electric motor 112, and the housing of the electronic control assembly 13 may be integrally formed.
The housing of the first motor 111, the housing of the second motor 112, the housing of the first reducer 121, and the housing of the second reducer 122 may be integrally formed.
Thirdly, the housing of the first motor 111, the housing of the second motor 112, the housing of the first reducer 121, the housing of the second reducer 122 and the water pump housing may be integrally formed; wherein, the water pump can be integrated to be set up on reduction gear assembly 12, and reduction gear assembly 12 provides power for the water pump.
The housing of the first motor 111, the housing of the second motor 112, the housing of the first reducer 121, the housing of the second reducer 122, and the electronic control assembly 13 may be integrally formed.
And fifthly, the shell of the first motor 111, the shell of the second motor 112, the shell of the first speed reducer 121, the shell of the second speed reducer 122, the water pump shell and the electronic control assembly 13 can be integrally formed.
According to an embodiment of the present invention, the first motor and the second motor in the dual drive system 1 may be configured as a low-power motor to cool the dual drive system 1 by natural cooling or air cooling.
In the above embodiment, the first speed reducer 121 and the second speed reducer 122 may be configured as multi-stage speed reducers, and may specifically be three-stage speed reducers, and the first motor 111 and the second motor 112 configured as multi-stage speed reducers can meet the requirement of high-speed motors, thereby improving the practicability and reliability of the dual-drive system 1.
The vehicle 1000 according to the present invention is briefly described below.
As shown in fig. 4, the vehicle 1000 according to the present invention is provided with the dual-drive system 1 according to the above-described embodiment, and the vehicle 1000 according to the present invention is provided with the dual-drive system 1 according to the above-described embodiment, so that the vehicle 1000 occupies a small space in the power transmission system, and the vehicle 1000 has a more reasonable and compact structural arrangement, high reliability, and good stability.
An embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1, 2 and 3, the dual-drive system 1 of this embodiment includes a motor assembly 11, a reducer assembly 12 and an electronic control assembly 13, the motor assembly 11 includes a dual-motor housing 110, the dual-motor housing 110 is configured as a cylindrical housing structure, a baffle 1102 is disposed at a middle position inside the dual-motor housing 110, a rotor and a stator of a first motor 111 are both disposed in a first motor mounting space of the dual-motor housing 110, a rotor and a stator of a second motor 112 are both disposed in a second motor mounting space of the dual-motor housing 110, the baffle 1102 is disposed at a middle position of the dual-motor housing 110, a first bearing mounting seat 1103 and a second bearing mounting seat 1104 are disposed on the baffle 1102, a right end bearing of a first motor shaft 1113 is disposed on the first bearing mounting seat 1103, a left end bearing of a second motor shaft 1123 is disposed on the second bearing mounting seat 1104, a left end of the first motor shaft 1113 is connected to the first reducer 121, the right end of the second motor shaft 1123 is connected with the second reducer 122; the electric control assembly 13 is arranged between the first speed reducer 121 and the second speed reducer 122, the left side of the electric control assembly 13 is connected with the first speed reducer 121 through a fastening piece, the right side of the electric control assembly 13 is fixedly connected with the second speed reducer 122 through a fastening piece, the electric control assembly 13 and the motor assembly 11 are horizontally arranged and can be directly plugged to electrically connect the electric control assembly 13 with the motor assembly 11, the two parts of the motor assembly 11 and the electric control assembly 13 are connected through an internal copper plate, and the part of the motor assembly 11 connected with the electric control assembly 13 is hermetically arranged, so as to facilitate the installation and maintenance of the dual-drive system 1, the electric control assembly 13 is further provided with a water inlet 141 and a water outlet 142 of the cooling device 14, the cooling liquid can enter the cooling device through the water inlet 141, the heat can be taken out of the dual-drive system 1 through the water outlet 142, and then the cooling of the wheel-side dual-drive system 1 is realized.
According to the dual-drive system 1, the arrangement is very compact, the motor assembly 11, the electronic control assembly 13 and the speed reducer assembly 12 are attached together, the size of the dual-drive system 1 is reduced, the first speed reducer 121 and the second speed reducer 122 are located on two sides of the motor assembly 11 and are very close to wheels, and the length of a transmission shaft and the loss of power in the transmission process are reduced.
In the dual-drive system 1, wheel-side driving is adopted, and no transmission shaft is connected between the first speed reducer 121 and the second speed reducer 122, so that a differential mechanism structure is not provided, the differential function is realized by a rotating speed ring in the electric control assembly 13, and the differential function is realized by torque distribution and rotating speed regulation of the first motor 111 and the second motor 112, so that the stability of vehicle turning is ensured.
Because the dual-drive system 1 adopts the design of the integrated motor housing, the first motor 111 and the second motor 112 are located at two sides of the dual-motor housing 110. The two motor housings are connected together without bolts, so that unnecessary bolt connection is reduced, and the overall axial arrangement size and the weight of the housings are reduced.
The dual-drive system 1 is very compact in arrangement, the motor assembly 11 and the electronic control assembly 13 are very close to each other and are fixed on the shell of the speed reducer, so that a three-phase line external connection mode is not adopted. The three-phase line outlet of the motor adopts a plug type design, the two positions are horizontal, and the plug can be directly plugged during installation. The structure reduces the length consumption of the three-phase line, and is convenient to install and disassemble and maintain in the later period.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (16)
1. A dual drive system, comprising:
a motor assembly, the motor assembly comprising: the motor comprises a first motor and a second motor, wherein the first motor is positioned on the left side, the second motor is positioned on the right side, and a motor shell of the first motor and a motor shell of the second motor are constructed into double motor shells;
a speed reducer assembly, the speed reducer assembly comprising: the first speed reducer is located on the left side of the first motor and connected with the first motor, and the second speed reducer is located on the right side of the second motor and connected with the second motor.
2. A dual drive system according to claim 1, wherein said dual motor casing comprises:
an outer case defining a motor mounting space;
a baffle plate disposed within the outer housing to divide the motor installation space into a first motor installation space and a second motor installation space; wherein
The rotor and the stator of the first motor are arranged in the first motor mounting space, and the rotor and the stator of the second motor are arranged in the second mounting space.
3. The dual drive system according to claim 2, wherein a first bearing mount is provided on a left side of said baffle, and a second bearing mount is provided on a right side of said baffle, said first bearing mount being adapted to fix a right bearing of a motor shaft of said first motor, said second bearing mount being adapted to fix a left bearing of a motor shaft of said second motor.
4. A dual drive system according to claim 1, wherein a case of said first decelerator, said dual motor case, and a case of said second decelerator are integrally formed.
5. A dual drive system according to claim 1, further comprising: and the electric control assembly is arranged between the first speed reducer and the second speed reducer and is electrically connected with the motor assembly.
6. A dual drive system according to claim 5, wherein said electrical control assembly and said dual motor housing are arranged in a front-to-rear direction.
7. A dual drive system according to claim 6, wherein said first speed reducer and said second speed reducer are spaced apart in the left-right direction and are connected to a first motor and a second motor of said motor assembly, respectively, and said motor assembly, said first speed reducer and said second speed reducer define a housing space for housing said electronic control assembly.
8. The dual-drive system according to claim 5, wherein a first terminal is disposed on a housing of said electronic control assembly, a second terminal is disposed on said dual-motor housing opposite to said first terminal, and said first terminal and said second terminal are mated by plugging.
9. A dual drive system according to claim 5, further comprising: a cooling device adapted to cool at least one of the motor assembly, the reducer assembly and the electronic control assembly.
10. A dual drive system according to claim 9, wherein said cooling means comprises: water-cooling device and the cold cooling device of oil, water-cooling device is suitable for right automatically controlled assembly with the motor assembly cools off, the cold cooling device of oil is suitable for right the reduction gear assembly cools off.
11. A dual drive system according to claim 10, wherein said water-cooled cooling means includes: the water pump is connected with the cooling water channel so as to pump cooling water into the cooling water channel; wherein
The dual motor case is constructed in a double-layered structure to form a cooling water passage.
12. A dual drive system according to claim 11, wherein said dual layer structure comprises: the cooling water channel comprises an outer shell part and an inner lining part which are spaced apart, wherein a bulge is arranged on the inner side wall of the outer shell part and/or the outer side wall of the inner lining part, and the outer shell part, the inner lining part and the bulge define the cooling water channel.
13. A dual drive system according to claim 9, wherein said cooling means comprises: water-cooling device and the cold cooling device of oil, water-cooling device is suitable for right automatically controlled assembly cools off, the cold cooling device of oil is suitable for right the reduction gear assembly with motor assembly cools off.
14. The dual drive system according to claim 5, wherein any plurality of the dual motor housing, the housing of the first reduction gear, the housing of the second reduction gear, and the housing of the electronic control assembly are integrally formed.
15. A dual drive system according to claim 1, wherein both said first retarder and said second retarder are multi-stage retarders.
16. A vehicle comprising a dual drive system according to any one of claims 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300503.3A CN111823853A (en) | 2019-04-15 | 2019-04-15 | Dual-drive system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300503.3A CN111823853A (en) | 2019-04-15 | 2019-04-15 | Dual-drive system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111823853A true CN111823853A (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910300503.3A Pending CN111823853A (en) | 2019-04-15 | 2019-04-15 | Dual-drive system and vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN111823853A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290889A (en) * | 2021-06-30 | 2022-04-08 | 华为数字能源技术有限公司 | Power device and vehicle |
| CN114396472A (en) * | 2021-10-12 | 2022-04-26 | 华为数字能源技术有限公司 | Power assembly and vehicle |
| CN116080377A (en) * | 2022-04-29 | 2023-05-09 | 比亚迪股份有限公司 | Electric drive assembly, four-wheel drive system and vehicle |
-
2019
- 2019-04-15 CN CN201910300503.3A patent/CN111823853A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290889A (en) * | 2021-06-30 | 2022-04-08 | 华为数字能源技术有限公司 | Power device and vehicle |
| CN114396472A (en) * | 2021-10-12 | 2022-04-26 | 华为数字能源技术有限公司 | Power assembly and vehicle |
| US11906037B2 (en) | 2021-10-12 | 2024-02-20 | Huawei Digital Power Technologies Co., Ltd. | Cooling and lubricating oil paths for power assembly and vehicle |
| CN116080377A (en) * | 2022-04-29 | 2023-05-09 | 比亚迪股份有限公司 | Electric drive assembly, four-wheel drive system and vehicle |
| CN116080377B (en) * | 2022-04-29 | 2024-01-26 | 比亚迪股份有限公司 | Electric drive assembly, four-wheel drive system and vehicle |
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