CN116557489B - Transmission assembly for electric vehicle - Google Patents
Transmission assembly for electric vehicle Download PDFInfo
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- CN116557489B CN116557489B CN202310822378.9A CN202310822378A CN116557489B CN 116557489 B CN116557489 B CN 116557489B CN 202310822378 A CN202310822378 A CN 202310822378A CN 116557489 B CN116557489 B CN 116557489B
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- motor
- heat exchange
- transmission
- slow flow
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000009467 reduction Effects 0.000 claims description 15
- 230000008859 change Effects 0.000 abstract description 15
- 238000001816 cooling Methods 0.000 abstract description 13
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000003756 stirring Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 77
- 239000000306 component Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 13
- 230000036760 body temperature Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 208000005189 Embolism Diseases 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000008111 motor development Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/021—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings toothed gearing combined with continuous variable friction gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention provides a transmission assembly for an electric vehicle, and particularly relates to the technical field of vehicles. The transmission assembly comprises an input belt pulley shaft assembly, a transmission belt and an output belt pulley shaft assembly, the transmission assembly can solve the noise problem caused in the running process, meanwhile, the development difficulty of a motor can be reduced, most of working conditions of an electric drive system can be ensured to work in the most efficient interval all the time by the aid of the speed change mechanism, the endurance mileage of the whole vehicle is improved, and accordingly the economy of the whole vehicle is improved; the transmission assembly is further provided with a slow flow component, the plug in the slow flow component, the spring and other components can slow down the flow speed of the oil body, the oil body can be fully heated and cooled, meanwhile, the oscillating rod is also beneficial to stirring the oil body, and the oil body is prevented from caking in the cooling or heating process.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a transmission assembly for an electric vehicle.
Background
At present, the electric vehicle on the market is changed from a split assembly mode of a motor, a speed reducer and a motor controller to a high integration mode, so that the volume and the weight of an electric drive system are optimized, the flexibility of the whole vehicle arrangement is improved, and meanwhile, the system cost is further reduced through a high integration scheme. However, as three-in-one or multiple-in-one products on the market are matched with the speed reducer, the dynamic property and the economical efficiency of the whole vehicle cannot be considered at the same time, the motor rotating speed requirement is higher at high rotating speed, the design difficulty of the motor is increased, and the motor noise problem at high rotating speed is solved.
The prior patent provides some solutions, for example patent US10760668B2, which provides a transmission comprising: the engine-side engagement surface, the transmission-side engagement surface engaged with the engine-side engagement surface, and the engine member provided radially outside the engine-side engagement surface, which improves the motor rotation speed to thereby adjust the noise of the whole vehicle, while improving the driving comfort while taking into consideration the power performance. However, this patent fails to effectively solve the problem of multi-gear stepless speed change, and the inventors herein consider that there is still a great room for improvement.
Disclosure of Invention
In order to achieve the function of multi-gear stepless speed change and improve the dynamic property of the whole vehicle, ensure that most working conditions of an electric drive system always work in the most efficient range, and improve the endurance mileage of the whole vehicle, so that the economy of the whole vehicle is improved, and meanwhile, the problem of environmental temperature change control of a transmission in the using process of the vehicle is solved. The invention provides a transmission assembly for an electric vehicle, which can also be called a CVT three-in-one electric drive system, and comprises: and one side of the motor end cover is fixedly connected with the motor shell, an input belt pulley shaft assembly is arranged in the motor shell, one side of the input belt pulley shaft assembly is abutted with an output belt pulley shaft assembly, a reduction driving gear is sleeved on the output belt pulley shaft assembly, one side of the reduction driving gear is in transmission connection with an output shaft assembly, and one side of the output shaft assembly is in transmission connection with a differential mechanism assembly.
Furthermore, the transmission assembly provided by the invention can provide a wider speed ratio range by combining the continuously variable transmission technology of the CVT, and further improves the dynamic performance of the whole vehicle. The CVT speed changer greatly reduces the highest rotating speed requirement of the CVT on the motor by adjusting the speed ratio, so that the development difficulty of the motor is reduced, and the noise problem caused by the motor at a high rotating speed is also optimized. The invention realizes power output by controlling the rotating speed or torque of the motor, and simultaneously realizes the speed change function of the CVT speed change mechanism by controlling the rotating speed of the electronic pump and combining with the pressure regulation of the hydraulic system. It is worth mentioning that power is transmitted to the reduction driving gear through CVT speed change mechanism, the reduction driving gear is used for transmitting power to the output shaft assembly, the bearing supports behind the output shaft assembly through the bearing support seat, power is transmitted to the differential mechanism assembly after first-level speed reduction, power is output to the wheel end through the differential mechanism assembly, the running of the vehicle is achieved, further, the reduction driving gear and the differential mechanism assembly are mainly used for improving the speed ratio of the whole vehicle, starting dynamic performance is guaranteed, the CVT speed change mechanism can be combined to improve the maximum speed of high-speed running, the difficulty of motor development is reduced, and meanwhile, the over-bending capacity of the whole vehicle can be further improved due to the fact that the differential mechanism assembly is combined.
In the invention, the input belt wheel shaft assembly comprises a motor rotor shaft, one side of a motor end cover is connected with the motor rotor shaft through a bearing, a motor rotor is sleeved on the side surface of the motor rotor shaft, a motor stator is sleeved on the outer side of the motor rotor, one side of the motor stator is fixedly connected with a motor shell, a rotary assembly is sleeved on the outer side of one end, far away from the motor end cover, of the motor rotor shaft, and the rotary assembly is connected with the motor shell.
Further, the total components of the rotary transformer are a rotary transformer stator and a rotary transformer, wherein the rotary transformer stator is fixed on a motor shell, the rotary transformer is fixed on a motor rotor shaft, and the motor control assembly is controlled through collection and excitation of a rotary transformer new number, and the motor rotor shaft is connected with an input belt wheel shaft through a spline, so that the input belt wheel shaft can rotate together with the motor rotor shaft.
In the invention, the input pulley shaft assembly comprises a pulley, a transmission belt is arranged on the pulley, a motor controller assembly is arranged on the side face of the input pulley shaft assembly, and the motor controller assembly is matched with the motor shell.
Further, the motor controller assembly is mainly integrated with an inverter and a control module of a driving motor and an inverter and a control module of an electronic pump motor, and the control of the motor controller assembly and the electronic pump is realized through instructions of a VCU of the whole vehicle, wherein the VCU refers to a whole vehicle controller, and particularly a new energy vehicle central control unit is a core component of a control system.
According to the invention, one side of a motor shell is connected with an oil body temperature control device through a first pipeline, the oil body temperature control device comprises a heat exchange component, one side of the heat exchange component is provided with a positioning plate in a matched mode, a bearing plate is fixedly connected below the positioning plate, a plurality of fins are distributed below the bearing plate at intervals, a plurality of vertically placed mounting columns are fixedly connected to the lower surface of the bearing plate, and the fins are installed in series through the mounting columns.
Further, a runner for storing hydraulic oil is arranged in the motor shell, an oil body is filled in the runner, the heat exchange assembly can suck the oil body in the runner, and the oil body is further discharged into the heat exchange assembly to be cooled or heated so as to control the temperature in the motor shell.
In the invention, a fan assembly is arranged on the side face of a rib, the bottom of a mounting column is fixedly connected with a first plate body, the bottom of the first plate body is fixedly connected with a plurality of first columns, one end of each first column is fixedly connected with a second plate body, and an oil storage tank is arranged between the first plate body and the second plate body.
According to the invention, a slow flow component is arranged below the heat exchange component, the slow flow component comprises a slow flow shell, the bottom of the slow flow shell is communicated with an oil storage tank through a second pipeline, the top of the slow flow shell is connected with the heat exchange shell, the slow flow component further comprises a plug, the plug is inserted into a through hole arranged at the bottom of the heat exchange shell, the bottom of the plug is fixedly connected with a spring, a lifting column is arranged below the plug, the spring is sleeved on the surface of the lifting column, the bottom of the lifting column is fixedly connected with a swinging rod, and a circular plate is sleeved in the middle section of the swinging rod.
In the invention, the lifting column is arranged at the center of the slow flow shell, and the first plate body is arranged below the slow flow component.
Further, the cooling route of this oil body is roughly, the oil body is taken out through heat transfer subassembly via the electron pump, this moment the control by temperature change subassembly does not heat oil, the oil body pushes down the embolism through gravity effect, the oil body flows from one side, the flabellum that the fin side was equipped with rotates this moment, cool down the oil body, the oil body after cooling flows into the batch oil tank, the slow flow subassembly below is provided with the through-hole that the second pipeline can be connected with the batch oil tank top, wherein be provided with the division board in the batch oil tank, can open or close the operation according to the purpose of cooling and warming up, the batch oil tank outside is connected with the third pipeline at last, can carry the oil weight again to in the motor housing.
Still further, the obstruction effect of embolism and spring can further reduce the oil body and flow velocity in the device to when the oil body pushes away embolism and spring owing to gravity effect, the swinging arms of bottom take place to rotate owing to the atress is uneven, and the swinging arms peg graft on trapezoidal base, and the side of this base passes through connecting rod and the inner wall fixed connection of slow flow casing, and this base is located the top of slow flow casing bottom through-hole, and the swinging arms can further stir the oil body and promote the oil body and evenly distributed in the device, have prolonged the dwell time of oil body in the device inside simultaneously, and the swinging arms can disperse the caking thing in the oil body owing to the spring effect that the cover was established in the lift post outside simultaneously in the rotation process, avoid the oil body to gather in the device inside, improve the mobility of oil body.
Similarly, the heating path of the oil body is that the oil body is pumped through the heat exchange assembly by the electronic pump, at the moment, the temperature control assembly heats the oil, the temperature control assembly comprises an electric heating wire and a temperature sensor, the temperature control assembly further transmits heat to the slow flow shell, the oil body in the device flows into the oil storage tank after being heated, most of the scheme is used in a cold environment, namely, the internal temperature of the transmission assembly can be preheated by increasing the temperature of the oil body, and the time required by starting the engine is reduced.
In the invention, a plurality of flow guide pieces are arranged in an array manner between the fins, each flow guide piece comprises a square auxiliary plate body, a plurality of first pipe bodies are arranged on the upper surface and the lower surface of the auxiliary plate body, vent holes are formed in the side surfaces of the auxiliary plate body, and the vent holes face the direction of the air flow blown by the fan assembly.
Further, the fins mainly comprise copper pipes which are arranged in an array, the inside of the copper pipes comprises a refrigerant, and the refrigerating effect of the fins is further improved under the action of the fan assembly. The water conservancy diversion spare that sets up between the upper and lower fin can ensure the interval between the fin, avoids long-term use to lead to the fin to warp, and the first body structure that the upper and lower surface set up simultaneously helps the water conservancy diversion spare can be convenient take out from between the fin, and the inside hollow structure that adopts of first body simultaneously enables the water conservancy diversion spare and compares the butt between upper and lower fin to have relative buffer space. And a plurality of through holes formed in one side of the flow guide piece have the guiding effect on the air flow blown out by the fan assembly, so that most of cooling air flow can be fully covered on the surfaces of the heat exchange shell and the slow flow shell, and the cooling effect is improved.
Compared with the prior art, the invention has the following beneficial effects: the CVT speed change mechanism is utilized, so that the noise problem caused in the running process is reduced, meanwhile, the development difficulty of a motor can be reduced, most of working conditions of an electric drive system can be ensured to work in the most efficient section all the time, the endurance mileage of the whole vehicle is improved, and the economical efficiency of the whole vehicle is improved; the plug in the slow flow component, the spring and other components are utilized to slow down the flow speed of the oil body, so that the oil body can be fully heated and cooled, and meanwhile, the swinging rod is also beneficial to stirring the oil body, and the oil body is prevented from caking in the cooling or heating process; the guide piece is arranged in the rib, the first pipe body structure of the guide piece can buffer impact force brought by pumping of partial oil body, and meanwhile, the through hole formed in the side face has a guiding effect on air flow, so that the cooling effect is improved.
Drawings
FIG. 1 is a schematic diagram of a transmission assembly for an electric vehicle in accordance with the present invention;
FIG. 2 is a schematic diagram of an oil body temperature control device according to the present invention;
FIG. 3 is a schematic diagram of the structure of the oil body temperature control device and a schematic diagram of the connection state of the motor housing;
FIG. 4 is a schematic diagram of a connection structure of a heat exchange assembly and a slow flow assembly according to the present invention;
FIG. 5 is a schematic cross-sectional view of a heat exchange assembly and a flow retarding assembly according to the present invention;
fig. 6 is a schematic structural diagram of a flow guiding member according to the present invention.
Reference numerals illustrate: 1-a motor end cover; 2-a motor stator; 3-a motor rotor; 4-a motor rotor shaft; 5-a rotary transformer assembly; 6-a motor controller assembly; 7-a transmission belt; 8-an input pulley shaft assembly; 81-input pulley shaft; 9-an output pulley shaft assembly; 10-a reduction drive gear; 11-an electronic pump; 12-an output shaft assembly; 13-differential assembly; 14-a bearing support; 15-a motor housing; 16-an oil body temperature control device; 20-a heat exchange assembly; 21-positioning plates; 22-a temperature control assembly; 231-an oil conveying hole; 232-heat exchange holes; 233-a heat exchange housing; 30-bearing plates; 31-ribs; 32-a flow guide; 321-vents; 322-first tube; 323-auxiliary plate body; 33-mounting posts; 34-slow flow component; 341-embolism; 342-a spring; 343-lifting column; 344-swinging bar; 345-circular plate; 346-slow flow shell; 40-a fan assembly; 41-fan blades; 50-a first plate body; 51-a first column; 52-a second plate; 60-an oil storage tank; 61-separator plate.
Detailed Description
Example 1:
referring to fig. 1, the present invention provides a transmission assembly for an electric vehicle, which may also be referred to as a CVT three-in-one electric drive system, including: the motor end cover 1, motor end cover 1 one side and motor housing 15 fixed connection are provided with input pulley shaft assembly 8 in the motor housing 15, and input pulley shaft assembly 8 one side butt has output pulley shaft assembly 9, and the cover is established reduction driving gear 10 on the output pulley shaft assembly 9, and reduction driving gear 10 one side transmission is connected with output shaft assembly 12, and differential mechanism assembly 13 is connected in the transmission of output shaft assembly 12 one side.
Furthermore, the transmission assembly provided by the invention can provide a wider speed ratio range by combining the continuously variable transmission technology of the CVT, and further improves the dynamic performance of the whole vehicle. The CVT speed changer greatly reduces the highest rotating speed requirement of the CVT on the motor by adjusting the speed ratio, so that the development difficulty of the motor is reduced, and the noise problem caused by the motor at a high rotating speed is also optimized. The invention realizes power output by controlling the rotating speed or torque of the motor, and simultaneously realizes the speed change function of a CVT speed change mechanism through the rotating speed control of the electronic pump 11 and the pressure regulation of a hydraulic system, and further, the hydraulic system comprises a heat exchange component 20 and the like arranged on one side of a motor shell 15, and the CVT speed change mechanism comprises an input pulley shaft assembly 8, a transmission belt 7 and an output pulley shaft assembly 9. It should be noted that, the power is transmitted to the reduction driving gear 10 through the CVT speed change mechanism, and then the reduction driving gear 10 transmits the power to the output shaft assembly 12, the rear bearing of the output shaft assembly 12 is supported by the bearing support seat 14, and then the power is transmitted to the differential assembly 13 after primary reduction, and the power is output to the wheel end through the differential assembly 13, so as to realize the running of the vehicle, and further, the reduction driving gear 10 and the differential assembly 13 are mainly used for improving the speed ratio of the whole vehicle, ensuring the starting power, and being capable of combining the CVT speed change mechanism to improve the maximum speed of the high-speed running, reducing the difficulty of motor development, and simultaneously being capable of further improving the over-bending capability of the whole vehicle due to the combination of the differential assembly 13.
In the invention, an input pulley shaft assembly 8 comprises a motor rotor shaft 4, one side of a motor end cover 1 is connected with the motor rotor shaft 4 through a bearing, a motor rotor 3 is sleeved on the side surface of the motor rotor shaft 4, a motor stator 2 is sleeved on the outer side of the motor rotor 3, one side of the motor stator 2 is fixedly connected with a motor shell 15, a rotary assembly 5 is sleeved on the outer side of one end, far away from the motor end cover 1, of the motor rotor shaft 4, and the rotary assembly 5 is connected with the motor shell 15.
Further, the rotary assembly 5 is divided into a rotary stator and a rotary rotor, wherein the rotary stator is fixed on the motor housing 15, the rotary rotor is fixed on the motor rotor shaft 4, and the control of the motor control assembly 6 is realized through the collection and excitation of a rotary new number, wherein the motor rotor shaft 4 is connected with the input pulley shaft 81 through a spline, so that the input pulley shaft 81 can rotate together with the motor rotor shaft 4.
In the invention, the input pulley shaft assembly 8 comprises a pulley, a transmission belt 7 is arranged on the pulley, a motor controller assembly 6 is arranged on the side surface of the input pulley shaft assembly 8, and the motor controller assembly 6 is matched with a motor shell 15.
Further, the motor controller assembly 6 mainly integrates an inverter and a control module of a driving motor and an inverter and a control module of a motor of the electronic pump 11, and controls the motor controller assembly 6 and the electronic pump 11 through instructions of a VCU of the whole vehicle, wherein the VCU refers to a whole vehicle controller, and particularly a central control unit of a new energy vehicle is a core component of a control system.
Example 2:
the difference between this embodiment and embodiment 1 is that, referring to fig. 2 and 3, in the present invention, one side of a motor housing 15 is connected with an oil body temperature control device 16 through a first pipeline, the oil body temperature control device 16 includes a heat exchange assembly 20, one side of the heat exchange assembly 20 is cooperatively provided with a positioning plate 21, a carrier plate 30 is fixedly connected below the positioning plate 21, a plurality of ribs 31 are arranged at intervals below the carrier plate 30, a plurality of vertically placed mounting columns 33 are fixedly connected to the lower surface of the carrier plate 30, and the ribs 31 are installed in series through the mounting columns 33.
Further, a flow channel for storing hydraulic oil is arranged in the motor housing 15, wherein the flow channel is filled with oil, and the heat exchange assembly 20 can suck the oil in the flow channel and further discharge the oil into the heat exchange assembly 20 for cooling or heating so as to control the temperature in the motor housing 15.
Referring to fig. 2, in the present invention, a fan assembly 40 is installed on a side of a rib 31, a first plate 50 is fixedly connected to the bottom of a mounting column 33, a plurality of first columns 51 are fixedly connected to the bottom of the first plate 50, one end of each first column 51 is fixedly connected to a second plate 52, and an oil storage tank 60 is disposed between the first plate 50 and the second plate 52.
Referring to fig. 4 and 5, in the present invention, a slow flow component 34 is disposed below a heat exchange component 20, the slow flow component 34 includes a slow flow casing 346, the bottom of the slow flow casing 346 is communicated with an oil storage tank 60 through a second pipeline, the top of the slow flow casing 346 is connected with a heat exchange casing 233, the slow flow component 34 further includes a plug 341, the plug 341 is inserted into a through hole formed at the bottom of the heat exchange casing 233, a spring 342 is fixedly connected to the bottom of the plug 341, a lifting column 343 is disposed below the plug 341, the spring 342 is sleeved on the surface of the lifting column 343, a swing rod 344 is fixedly connected to the bottom of the lifting column 343, and a circular plate 345 is sleeved in the middle section of the swing rod 344.
In the present invention, the lifting column 343 is disposed at the center of the slow flow housing 346, and the first plate 50 is disposed below the slow flow assembly 34.
Further, the cooling path of the oil body is approximately that the oil body is pumped by the electronic pump 11 and passes through the heat exchange assembly 20, at this time, the temperature control assembly 22 does not heat the oil, the oil body presses down the plug 341 through the gravity effect, the oil body flows out from one side, at this time, the fan blades 41 arranged on the side surfaces of the ribs 31 rotate to cool the oil body, the cooled oil body flows into the oil storage tank 60, the second pipeline is arranged below the slow flow assembly 34 and can be connected with the through hole above the oil storage tank 60, the partition plate 61 is arranged in the oil storage tank 60, the operation of opening or closing can be performed according to the purpose of cooling and heating is performed, and finally, the outer side of the oil storage tank 60 is connected with the third pipeline, and the oil body can be conveyed into the motor housing 15 again.
Still further, the blocking effect of the plug 341 and the spring 342 can further reduce the flowing speed of the oil body in the device, and when the oil body pushes away the plug 341 and the spring 342 due to the gravity effect, the swing rod 344 at the bottom rotates due to uneven stress, the swing rod 344 is inserted on the trapezoid base, the side of the base is fixedly connected with the inner wall of the slow flow shell 346 through the connecting rod, and the base is located above the through hole at the bottom of the slow flow shell 346, the swing rod 344 can further stir the oil body to promote the oil body to uniformly distribute in the device, meanwhile, the residence time of the oil body in the device is prolonged, meanwhile, the swing rod 344 can disperse the caking matters in the oil body due to the action of the spring 342 sleeved outside the lifting column 343 in the rotating process, the accumulation of the oil body in the device is avoided, and the fluidity of the oil body is improved.
Similarly, the heating path of the oil body is that the oil body is pumped through the heat exchange assembly 20 by the electronic pump 11, and the temperature control assembly 22 heats the oil at this time, wherein the temperature control assembly 22 comprises an electric heating wire and a temperature sensor, the temperature control assembly 22 further transfers heat to the slow flow shell 346, the oil body in the device flows into the oil storage tank 60 after being heated, most of the oil body is used in a cold environment, namely, the internal temperature of the transmission assembly can be preheated by increasing the temperature of the oil body, and the time required for starting the engine is reduced.
Example 3:
the difference between this embodiment and embodiment 1 is that, referring to fig. 2 and 6, in the present invention, a plurality of flow guiding members 32 are arranged in an array between the ribs 31, the flow guiding members 32 include a square auxiliary plate body 323, a plurality of first tubes 322 are arranged on the upper and lower surfaces of the auxiliary plate body 323, and a vent hole 321 is formed on the side surface of the auxiliary plate body 323, and the vent hole 321 faces in the direction consistent with the direction of the air flow blown by the fan assembly 40.
Further, as shown in fig. 6, the fins 31 mainly include copper pipes arranged in an array, and the inside of the copper pipes includes a refrigerant, so that the refrigerating effect of the fins 31 is further improved under the action of the fan assembly 40. The water conservancy diversion piece 32 that sets up between upper and lower fin 31 can ensure the interval between the fin 31, avoids long-term use to lead to the fin 31 to warp, and the first body 322 structure that the upper and lower surface set up on the water conservancy diversion piece 32 simultaneously helps water conservancy diversion piece 32 can be convenient take out from between the fin 31, and the inside hollow structure that adopts of first body 322 simultaneously enables water conservancy diversion piece 32 to compare the butt between upper and lower fin 31 has relative buffer space. The plurality of through holes formed on one side of the flow guiding member 32 has a guiding function for the air flow blown out by the fan assembly 40, so that most of the cooling air flow can be ensured to be fully covered on the surfaces of the heat exchange shell 233 and the slow flow shell 346, and the cooling effect is improved.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
Claims (8)
1. A transmission assembly for an electric vehicle, comprising: the motor end cover (1), motor end cover (1) one side and motor housing (15) fixed connection, be provided with input pulley shaft assembly (8) in motor housing (15), input pulley shaft assembly (8) one side butt has output pulley shaft assembly (9), set up reduction driving gear (10) on output pulley shaft assembly (9), reduction driving gear (10) one side transmission is connected with output shaft assembly (12), differential mechanism assembly (13) are connected in transmission of output shaft assembly (12) one side, characterized in that, motor housing (15) one side is connected with heat transfer module (20) through first pipeline, heat transfer module (20) below is provided with slow flow subassembly (34), slow flow subassembly (34) are including slow flow casing (346), slow flow casing (346) bottom is equipped with oil storage tank (60), adopt the second pipeline to be connected between oil storage tank (60) and the slow flow casing (346);
the heat exchange assembly is characterized in that a positioning plate (21) is arranged on one side of the heat exchange assembly in a matched mode, a bearing plate (30) is fixedly connected to the lower portion of the positioning plate (21), a plurality of ribs (31) are distributed below the bearing plate (30) at intervals, a plurality of vertically placed mounting columns (33) are fixedly connected to the lower surface of the bearing plate (30), and the ribs (31) are installed in series through the mounting columns (33).
2. The transmission assembly for the electric vehicle according to claim 1, wherein the input pulley shaft assembly (8) comprises a motor rotor shaft (4), one side of the motor end cover (1) is connected with the motor rotor shaft (4) through a bearing, a motor rotor (3) is sleeved on the side surface of the motor rotor shaft (4), a motor stator (2) is sleeved on the outer side of the motor rotor (3), one side of the motor stator (2) is fixedly connected with a motor shell (15), a rotary assembly (5) is sleeved on the outer side, far away from one end of the motor end cover (1), of the motor rotor shaft (4), and the rotary assembly (5) is connected with the motor shell (15).
3. A transmission assembly for an electric vehicle according to claim 1 or 2, characterized in that the input pulley shaft assembly (8) comprises a pulley on which a drive belt (7) is mounted, and that a motor controller assembly (6) is arranged laterally of the input pulley shaft assembly (8), which motor controller assembly (6) is mounted in cooperation with a motor housing (15).
4. The transmission assembly for the electric vehicle according to claim 1, wherein the fan assembly (40) is installed on the side face of the rib (31), a first plate body (50) is fixedly connected to the bottom of the mounting column (33), a plurality of first columns (51) are fixedly connected to the bottom of the first plate body (50), one end of each first column (51) is fixedly connected to a second plate body (52), and an oil storage tank (60) is arranged between each first plate body (50) and each second plate body (52).
5. The transmission assembly for the electric vehicle according to claim 1, wherein a plurality of flow guiding members (32) are arranged in an array between the ribs (31), the flow guiding members (32) comprise square auxiliary plate bodies (323), a plurality of first pipe bodies (322) are arranged on the upper surface and the lower surface of the auxiliary plate bodies (323), vent holes (321) are formed in the side surfaces of the auxiliary plate bodies (323), and the direction of the vent holes (321) is consistent with the direction of the air flow blown out by the fan assembly (40).
6. The transmission assembly for the electric vehicle according to claim 1, wherein the heat exchange component (20) comprises a heat exchange shell (233), an oil transmission hole (231) is formed in the top of the heat exchange shell (233), a temperature control component (22) is arranged in the heat exchange shell (233), a heat exchange hole (232) is formed below the oil transmission hole (231), and the temperature control component (22) is arranged in the center of the heat exchange hole (232).
7. The transmission assembly for the electric vehicle according to claim 6, wherein the top of the slow flow casing (346) is connected with the heat exchange casing (233), the slow flow component (34) further comprises a plug (341), the plug (341) is inserted into a through hole formed in the bottom of the heat exchange casing (233), a spring (342) is fixedly connected to the bottom of the plug (341), a lifting column (343) is arranged below the plug (341), the spring (342) is sleeved on the surface of the lifting column (343), a swinging rod (344) is fixedly connected to the bottom of the lifting column (343), and a circular plate (345) is sleeved on the middle section of the swinging rod (344).
8. The transmission assembly for an electric vehicle according to claim 7, wherein the lifting column (343) is disposed at the center of the slow flow housing (346), and a first plate (50) is disposed below the slow flow component (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310822378.9A CN116557489B (en) | 2023-07-06 | 2023-07-06 | Transmission assembly for electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310822378.9A CN116557489B (en) | 2023-07-06 | 2023-07-06 | Transmission assembly for electric vehicle |
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| CN116557489A CN116557489A (en) | 2023-08-08 |
| CN116557489B true CN116557489B (en) | 2023-10-03 |
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| Publication number | Publication date |
|---|---|
| CN116557489A (en) | 2023-08-08 |
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