CN113890235A - Cast aluminum rotor of new energy automobile and heat dissipation device thereof - Google Patents
Cast aluminum rotor of new energy automobile and heat dissipation device thereof Download PDFInfo
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- CN113890235A CN113890235A CN202111249706.8A CN202111249706A CN113890235A CN 113890235 A CN113890235 A CN 113890235A CN 202111249706 A CN202111249706 A CN 202111249706A CN 113890235 A CN113890235 A CN 113890235A
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 48
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000003921 oil Substances 0.000 claims abstract description 86
- 239000010687 lubricating oil Substances 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- 239000002826 coolant Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000036544 posture Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- 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
- H02K7/003—Couplings; Details of shafts
-
- 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
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The application discloses a cast aluminum rotor of a new energy automobile and a heat dissipation device thereof, wherein a through hole is arranged on a rotating shaft, the cast aluminum rotor is connected with a gearbox assembly through an oil guide pipe of the heat dissipation device, so that lubricating oil can enter the cast aluminum rotor through the through hole, the lubricating oil in the gearbox enters the through hole on the rotating shaft through the oil guide pipe, the lubricating oil flows back into the gearbox through the through hole, the function of the lubricating oil is continuously realized, the dual utilization of resources is realized, the heat dissipation device also comprises an oil pump, a heat dissipation part and a control system, the oil pump is connected with the oil guide pipe, a controller is in signal connection with a motor controller corresponding to the rotor, the controller can acquire a working signal of the rotor and is in signal connection with the oil pump, after the controller detects the working of the rotor, the oil pump and the heat dissipation part are started, so that the lubricating oil in the gearbox can flow in the oil guide pipe and the through hole, automatic control heat dissipation is realized.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a cast aluminum rotor of a new energy automobile and a heat dissipation device of the cast aluminum rotor.
Background
In the continuous operation of the electric machine of a new energy vehicle, the cooling solution of the electric machine in the vehicle usually comprises a coolant reservoir, which stores some coolant of a special material, which coolant is transferred via a hose to one or more other components in the vehicle.
The electric motor rotor is the indispensable spare part of motor, the performance of motor has been decided to its radiating efficiency, the rotor itself generates heat and the heat radiation of stator part all can lead to the rotor to be locally or wholly overheated, wherein cast aluminium rotor is a common rotor, prior art has only done the surface heat dissipation to rotor and stator through the coolant, can not play fine cooling effect to the rotor inside, and rotor cooling does not well lead to the motor when the temperature rise that generates heat is too high, the inside resistance of motor also can increase, the efficiency of motor will sharply descend with exerting oneself in this time, higher temperature also can influence the inside lubrication and insulation of motor, under the extreme condition, possibly burn out the motor even.
The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.
Disclosure of Invention
In order to solve the problems, the invention provides a cast aluminum rotor of a new energy automobile and a heat dissipation device thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a cast aluminum rotor of a new energy automobile and a heat dissipation device thereof are provided, wherein the cast aluminum rotor comprises an iron core and a rotating shaft, the iron core is formed by laminating a plurality of steel sheets and then pouring molten aluminum for cooling, and the rotating shaft is provided with a through hole so that two axial ends of the rotating shaft are communicated with each other.
Above-mentioned structure, set up the through hole in the pivot, when the rotor is high-speed rotatory, according to the hydrodynamics principle, the air is stirred by the high-speed rotation of rotor around the iron core, the air flow velocity of the position is relatively faster more near apart from the rotor surface, make the rotor form a negative pressure region, it adsorbs to its self to drive the air around it, and the air in the pivot through hole is at the high-speed rotatory in-process of rotor, can produce centrifugal force, under centrifugal force's drive, form the flow of the interior gas of pivot through hole, and then take away the heat that the rotor produced, play the radiating effect, the through hole has also lightened the whole quality of rotor simultaneously.
Further, the through hole is formed in the middle of the rotating shaft. The middle part of the rotating shaft is arranged to ensure that the rotating shaft is stable in structure and easy to process. The through hole sets up in the pivot middle part, helps whole rotor to keep dynamic balance, compromises the synchronous heat dissipation of a plurality of positions of rotor circumferencial direction simultaneously, promotes the radiating efficiency.
Furthermore, the radial section of the through hole is circular. The through hole is circular hole structure, can ensure the intensity of rotor, and the gas flow is also controllable more regularly in the through-hole of whole rotor, and the rotor is at rotatory in-process stationarity height.
Furthermore, the radial section of the through hole is polygonal. By utilizing the change of the shape of the through hole, the air in the through hole forms different flow postures in the high-speed rotation process of the rotor, and the rotor has more variability and applicability.
Furthermore, the radial section of the through hole is elliptical. In the rotating process of the rotor, air in the through holes formed after the oval through holes are mutually overlapped is easier to stir, and spiral flowing air is formed and is more stable after entering the through holes.
Furthermore, the rotating shaft is connected with a gearbox assembly through a coupler, and lubricating oil in the gearbox assembly can be communicated with the through hole of the rotating shaft. The rotating shaft through hole is communicated with the gearbox assembly, lubricating oil in the gearbox assembly can enter the rotating shaft through hole, and the temperature of the rotor is reduced more quickly in a liquid cooling mode.
Furthermore, the cast aluminum rotor of the new energy automobile and the heat dissipation device of the cast aluminum rotor comprise an oil guide pipe, one end of the oil guide pipe is connected with the end part of the rotating shaft, the other end of the oil guide pipe is connected with the gearbox assembly, the oil guide pipe is communicated with the through hole of the rotating shaft and the inner cavity of the gearbox, and lubricating oil in the gearbox can flow in the through hole and the oil guide pipe.
The through hole and the gearbox are connected through the oil guide pipe to form a closed loop, a circulation channel which can enable lubricating oil in the gearbox to flow into the oil guide pipe firstly, then enter the through hole of the rotating shaft and flow back into the gearbox from the through hole to continuously realize a lubricating function is established, circulation of the lubricating oil is realized, and accordingly multi-level utilization of resources is achieved, the lubricating oil can lubricate gears in the gearbox, heat dissipation of a rotor can be achieved, and the effects of cost reduction and efficiency improvement are achieved.
Further, still include oil pump and controller, oil pump connection in lead oil pipe, controller signal connection in the machine controller that the rotor corresponds, the controller can acquire the operating signal of rotor, and controller signal connection in oil pump, and the controller detects rotor work back, starts the oil pump, makes lubricating oil in the gearbox can lead oil pipe and the downthehole flow of through-hole. The oil pump can make the lubricating oil in the oil pipe have stronger mobile cyclicity, and when machine controller detected the motor rotation signal, the oil pump began working, and when machine controller detected the motor and did not change, control oil pump stop work, perhaps the time delay was closed, utilized the more high-efficient and active control oil pump's of controller work, played the effect that reduces new energy automobile energy consumption.
Furthermore, a temperature sensor is arranged on the oil guide pipe, the temperature sensor is in signal connection with the controller, the oil guide pipe passes through the heat dissipation part, and the heat dissipation part is used for reducing the temperature of liquid in the oil guide pipe. Utilize temperature sensor to detect the interior lubricating oil temperature of oil pipe, the temperature variation of the interior lubricating oil of receiving oil pipe that can be more intelligent to the setting is when reaching the predetermined temperature, and the controller starts the radiating piece and cools down oil pipe, plays high-efficient intelligent radiating effect.
Furthermore, the heat dissipation part is a heat dissipation fan or a heat exchange pipe, the heat dissipation fan is provided with a driving motor, and the driving motor is connected with the controller through signals; the heat exchange tube can be externally connected with an automobile air guide port to guide in external air in the automobile driving process. The heat dissipation piece is a fan, after a temperature detection module of the controller detects that the temperature in the oil guide pipe reaches a preset oil temperature, the controller sends a signal to a driving motor of the heat dissipation fan, the driving fan is used for cooling the air of the oil guide pipe, full-automatic control can be achieved in the whole process, electric power of a new energy automobile is intelligently saved, a better heat dissipation effect is achieved on the rotor, the heat exchange pipe is connected with an automobile air guide opening, the air can continuously blow into the heat exchanger in the automobile driving process, the heat exchanger is wound around the oil guide pipe, heat dissipation of the oil guide pipe is achieved, the cost of the heat exchanger is low, new energy automobile energy does not need to be consumed, and energy conservation and emission reduction are achieved.
In the invention, the through hole is arranged on the rotating shaft, when the rotor rotates at a high speed, according to the fluid mechanics principle, air around the iron core is stirred by the high-speed rotation of the rotor, the air flow speed at the position closer to the surface of the rotor is relatively faster, so that the rotor forms a negative pressure area, the air around the rotor is driven to be adsorbed to the rotor, the air in the through hole of the rotating shaft can generate centrifugal force in the high-speed rotation process of the rotor, the air in the through hole of the rotating shaft flows in the through hole of the rotating shaft under the drive of the centrifugal force, the heat generated by the rotor is further taken away, the heat dissipation effect is achieved, meanwhile, the whole mass of the rotor is lightened by the through hole, the through hole of the rotor and the gear box are connected through the oil guide pipe to form a lubricating oil circulation channel, the lubricating oil in the gear box can be quickly utilized to dissipate heat in the rotor, the oil pump arranged on the oil guide pipe can increase the circulating force of the lubricating oil, meanwhile, the controller enables the whole heat dissipation process to be controllable and adjustable, full-automatic intelligent control of heat dissipation is achieved, energy consumption is reduced, and energy conservation and emission reduction are achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of another perspective of the present invention.
Fig. 3 is a schematic sectional view along the direction a-a in fig. 2 according to the present invention.
FIG. 4 is a schematic diagram of an exemplary embodiment of the present invention.
Fig. 5 is a schematic view of another exemplary embodiment of the present invention.
In the figure, 10, an iron core, 20, a rotating shaft, 30, a through hole, 40, a motor main body, 50, a stator, 60, an oil guide pipe, 70, an oil pump, 80, a gearbox assembly, 90, lubricating oil, 100, a gearbox transmission shaft, 110, a controller, 111, a temperature sensor, 120, a cooling fan, 101, a coupler, 102, a heat exchange pipe, 103 and an automobile air guide opening are arranged.
Detailed Description
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
In addition, in the description of the present invention, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 are not necessarily intended to 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.
As shown in fig. 1 to 5, the cast aluminum rotor of the new energy automobile comprises an iron core 10 and a rotating shaft 20, wherein the iron core 10 is formed by laminating a plurality of steel sheets and then pouring molten aluminum for cooling, and the rotating shaft 20 is provided with a through hole 30 so that two axial ends of the rotating shaft 20 are communicated with each other.
Above-mentioned structure, set up through hole 30 in the pivot, when the rotor is rotatory at a high speed, according to the hydrodynamics principle, the air is stirred by the high-speed rotation of rotor around the iron core, the air flow velocity of the position is relatively faster more near apart from the rotor surface, make the rotor form a negative pressure region, it adsorbs to its self to drive the air around it, and the air in pivot through hole 30 is at the high-speed rotatory in-process of rotor, can produce centrifugal force, under the drive of centrifugal force, form the flow of the interior gas of pivot through hole, and then take away the heat that the rotor produced, play the radiating effect, through hole 30 has also lightened the whole quality of rotor simultaneously.
As a preferred embodiment of the present application, as shown in fig. 2 and 3, a through-hole 30 is provided at a middle portion of the rotation shaft. The middle part of the rotating shaft is arranged to ensure that the rotating shaft is stable in structure and easy to process. The through hole 30 is arranged in the middle of the rotating shaft, so that the whole rotor can be kept in dynamic balance, synchronous heat dissipation of a plurality of positions in the circumferential direction of the rotor is considered, and the heat dissipation efficiency is improved.
In a preferred embodiment of the present application, the radial cross-section of the through-hole 30 is circular. Through hole 30 is the circular port structure, can ensure the intensity of rotor, and the gas flow is also controllable more regularly in the through-hole of whole rotor, and the rotor is at rotatory in-process stationarity height.
In a preferred embodiment of the present application, the radial cross-section of the through-hole 30 is polygonal. By utilizing the change of the shape of the through hole, the air in the through hole forms different flow postures in the high-speed rotation process of the rotor, and the rotor has more variability and applicability.
In a preferred embodiment of the present application, the radial cross-section of the through-hole 30 is elliptical. In the rotating process of the rotor, air in the through holes formed after the oval through holes are mutually overlapped is easier to stir, and spiral flowing air is formed and is more stable after entering the through holes.
In a preferred embodiment of the present application, as shown in fig. 4 and 5, a cast aluminum rotor heat sink for a new energy automobile, a rotating shaft 20 is connected to a transmission assembly 80 via a coupling 101, and a lubricant 90 in the transmission assembly can communicate with a through hole of the rotating shaft. The through hole of the rotating shaft is communicated with the gear box assembly, and lubricating oil 90 in the gear box assembly can enter the through hole of the rotating shaft and reduce the temperature of the rotor more quickly in a liquid cooling mode.
As a preferred embodiment of this embodiment, as shown in fig. 4 and 5, a cast aluminum rotor of a new energy automobile and a heat dissipation device thereof includes an oil conduit 60, one end of the oil conduit 60 is connected to an end of the rotating shaft, and the other end thereof is connected to a transmission case assembly 80, so that the oil conduit communicates a through hole of the rotating shaft and an inner cavity of the transmission case, and lubricating oil 90 in the transmission case can flow in the through hole and the oil conduit 60.
The stator 50 and the rotor are arranged in the electronic main body 40, and are connected with the rotating shaft through hole and the gearbox through the oil guide pipe 60 to form a closed lubricating oil circulation loop, so that a channel is established, wherein the lubricating oil 90 in the gearbox firstly flows into the oil guide pipe 60, enters the rotating shaft through hole to dissipate heat inside the rotor, and finally flows back into the gearbox from the through hole to continuously realize the lubricating function, so that the circulation of the lubricating oil 90 is realized, the double utilization of resources is realized, and the effects of reducing cost and improving efficiency are achieved.
Further, the structure further includes an oil pump 70 and a controller 110, the oil pump 70 is connected to the oil guide pipe 60, the controller is in signal connection with the motor controller corresponding to the rotor, the controller 110 can obtain a working signal of the rotor, the controller 110 is in signal connection with the oil pump 70, and after the controller 110 detects that the rotor works, the oil pump 70 is started to enable the lubricating oil 90 in the gearbox to flow in the oil guide pipe 60 and the through hole. The oil pump 70 can make the lubricating oil 90 in the oil guide pipe 60 have stronger flow circulation, when the motor controller detects a motor rotation signal, the electric signal is transmitted to the controller 110, and then the controller 110 takes the signal as a signal for the oil pump 70 to start working, and when the motor controller detects that the motor does not rotate, the signal is transmitted to the controller 110, the controller 110 controls the oil pump 70 to stop working or to delay closing, a delay module is arranged on the controller 110, so that when the rotor does not work, the oil pump is delayed to stop, the lubricating oil continues to circulate, the rotor is sufficiently radiated, the controller 110 is used for more efficiently and actively controlling the oil pump 70 to work, and the effect of reducing the energy consumption of a new energy automobile is achieved.
Further, a temperature sensor 111 is arranged on the oil guide pipe 60, the temperature sensor 111 is in signal connection with the controller 110, the oil guide pipe 60 passes through the heat dissipation member, and the heat dissipation member is used for reducing the temperature of the liquid in the oil guide pipe 60. Utilize temperature sensor 111 to detect 90 temperatures of lubricating oil in leading oil pipe 60, can more intelligently monitor the temperature variation of lubricating oil in leading oil pipe 60, set up on the controller and lead oil pipe 60 when reaching preset temperature, controller 111 starts the radiating piece and cools down leading oil pipe 60, and if be less than preset temperature, do not start the work of radiating piece, set up preset temperature, the radiating piece need not be in operating condition always, cool down leading oil pipe 60 when needs go on, open the radiating piece again when the temperature of lubricating oil 90 and the temperature of rotor can not take place the heat transfer promptly, in order to reach lasting stable heat dissipation, reduce new energy automobile energy consumption, realize intelligent operation.
Further, the heat sink is a heat dissipation fan 120 or a heat exchange pipe 102, the heat dissipation fan 120 is provided with a driving motor, and the driving motor is connected to the controller 110 through signals; the heat exchange tube 102 can be externally connected with an automobile air guide opening to guide outside air in the automobile driving process. The heat dissipation piece is radiator fan 120, and after the temperature detection module of controller 110 detected that the temperature reached preset oil temperature in oil pipe 60, controller 110 sent the signal to radiator fan 120's driving motor, and then driving fan 120 cooled the heat dissipation to oil pipe 60, and the whole process can accomplish to full automatic control, and intelligence and save new energy automobile's electric power can play better radiating effect simultaneously.
As an alternative scheme, as shown in fig. 5, a heat exchange tube 102 is used, under the condition that no new energy electric power is consumed, the heat exchange tube 102 is connected with an external automobile air guide opening 103, air can be continuously blown into the heat exchange tube 102 from an automobile air inlet 103 in the automobile driving process, the heat exchange tube 102 is wound on a heat conduction tube 60, and the principle that heat transfer can occur if large temperature difference exists due to contact between objects is utilized, so that continuous heat dissipation operation of an oil guide tube 60 is realized.
The method can be realized by adopting or referring to the prior art in places which are not described in the invention.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The cast aluminum rotor of the new energy automobile comprises an iron core and a rotating shaft, wherein the iron core is formed by laminating a plurality of steel sheets and then pouring molten aluminum for cooling.
2. The cast aluminum rotor of the new energy automobile as claimed in claim 1, wherein the through hole is provided in a middle portion of the rotating shaft.
3. The cast aluminum rotor of the new energy automobile as claimed in claim 1 or 2, wherein the radial cross section of the through hole is circular.
4. The cast aluminum rotor of the new energy automobile as claimed in claim 1 or 2, wherein the radial cross section of the through hole is polygonal.
5. The cast aluminum rotor of the new energy automobile as claimed in claim 1 or 2, wherein the radial cross section of the through hole is elliptical.
6. The cast aluminum rotor heat dissipation device of the new energy automobile as recited in claim 1, wherein the rotating shaft is connected with a transmission assembly through a coupling, and lubricating oil in the transmission assembly can be communicated with the through hole of the rotating shaft.
7. The cast aluminum rotor heat dissipation device of the new energy automobile as recited in claim 6, comprising an oil conduit, wherein one end of the oil conduit is connected to an end of the rotating shaft, and the other end of the oil conduit is connected to the transmission case assembly, so that the oil conduit is communicated with a through hole of the rotating shaft and an inner cavity of the transmission case, and lubricating oil in the transmission case can flow in the through hole and the oil conduit.
8. The cast-aluminum rotor heat dissipation device of the new energy automobile as recited in claim 7, further comprising an oil pump and a controller, wherein the oil pump is connected to the oil guide pipe, the controller is in signal connection with a motor controller corresponding to the rotor, the controller can obtain a working signal of the rotor, the controller is in signal connection with the oil pump, and after the controller detects that the rotor works, the oil pump is started to enable lubricating oil in the gearbox to flow in the oil guide pipe and the through hole.
9. The cast-aluminum rotor heat dissipation device of a new energy automobile as recited in claim 8, wherein a temperature sensor is disposed on the oil conduit, the temperature sensor is in signal connection with the controller, the oil conduit passes through a heat dissipation member, and the heat dissipation member is configured to reduce a temperature of a liquid in the oil conduit.
10. The cast aluminum rotor heat dissipation device of the new energy automobile as recited in claim 7, wherein the heat dissipation member is a heat dissipation fan or a heat exchange pipe, the heat dissipation fan is provided with a driving motor, and the driving motor is in signal connection with the controller; the heat exchange tube can be externally connected with an automobile air guide port to guide in external air in the automobile driving process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111249706.8A CN113890235A (en) | 2021-10-26 | 2021-10-26 | Cast aluminum rotor of new energy automobile and heat dissipation device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111249706.8A CN113890235A (en) | 2021-10-26 | 2021-10-26 | Cast aluminum rotor of new energy automobile and heat dissipation device thereof |
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| CN113890235A true CN113890235A (en) | 2022-01-04 |
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| CN202111249706.8A Pending CN113890235A (en) | 2021-10-26 | 2021-10-26 | Cast aluminum rotor of new energy automobile and heat dissipation device thereof |
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| 过增元，黄素逸等著: "《场协同原理与强化传热新技术》", 31 August 2004, 中国电力出版社 * |
| 陈新亚 编: "《车迷辞典》", 30 June 2000, 兵器工业出版社 * |
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Application publication date: 20220104 |