CN211127356U - Driving assembly for heat conduction of rotor shaft heat pipe and vehicle - Google Patents
Driving assembly for heat conduction of rotor shaft heat pipe and vehicle Download PDFInfo
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- CN211127356U CN211127356U CN201922498628.XU CN201922498628U CN211127356U CN 211127356 U CN211127356 U CN 211127356U CN 201922498628 U CN201922498628 U CN 201922498628U CN 211127356 U CN211127356 U CN 211127356U
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Abstract
The utility model provides a driving assembly and a vehicle for heat conduction of a rotor shaft heat pipe, which comprises a transmission and a motor, wherein the transmission comprises a speed change shell, the motor comprises a casing, and the speed change shell is connected with the casing; the motor also comprises a rotor shaft and a heat pipe, wherein the rotor shaft is provided with a mounting hole along the axial direction, the heat pipe is arranged in the mounting hole and is adjacent to the rotor shaft, and the heat-conducting outer end of the heat pipe is positioned outside the mounting hole; the transmission also comprises a driving wheel, a device cavity is arranged in the speed change shell, the driving wheel is rotatably arranged in the device cavity, the driving end of the rotor shaft and the outer end of the heat pipe extend into the device cavity, the driving end of the rotor shaft is in driving connection with the driving wheel, and cooling oil is arranged in the device cavity. All stretch into the device intracavity with the drive end of rotor shaft and the heat conduction outer end of heat pipe, the heat conduction outer end of heat pipe can contact the heat conduction with the coolant oil well to realize high-efficient liquid cooling heat dissipation, effectively reduce the operating temperature of rotor shaft, improve its life and stability.
Description
Technical Field
The utility model relates to a new forms of energy field especially relates to a drive assembly and vehicle of rotor shaft heat pipe heat conduction.
Background
The new energy vehicle has the characteristics of environmental protection, small pollution and the like because the new energy vehicle does not burn gasoline or diesel oil to generate power, and under the powerful popularization and application of new energy power generation such as hydroenergy, wind energy, solar energy, nuclear energy and the like, a plurality of new energy vehicles are gradually popularized and applied, such as new energy electric cars, new energy electric coaches, new energy electric trucks, new energy electric cleaning vehicles, new energy electric rail vehicles, new energy electric flying vehicles, new energy electric shipping vehicles and the like.
The new energy vehicle is generally equipped with a battery, a motor control device, a motor, a transmission and a power generation device, wherein a power tube in the motor control device receives direct current output by the battery, inverts the direct current into alternating current and outputs the alternating current to the motor, and then drives the power generation device such as wheels, blades and the like to drive the vehicle to move through the speed change or torque change of the transmission.
And along with the vehicle to the integration of drive assembly motor and derailleur promptly, motor and derailleur are connected promptly, and the rotor shaft of motor is connected with the drive wheel of derailleur, and when rotatory during operation, rotor shaft and bearing all can produce a large amount of used heat, so need carry out conduction heat dissipation to used heat and handle, otherwise can influence the whole life of rotor shaft.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rotor shaft utilizes drive assembly of high-efficient heat conduction of heat pipe.
A second object of the present invention is to provide a vehicle having the above-mentioned drive assembly.
In order to realize the first purpose of the utility model, the utility model provides a driving assembly of heat pipe heat conduction of rotor shaft, which comprises a speed changer and a motor, wherein the speed changer comprises a speed change shell, the motor comprises a casing, and the speed change shell is connected with the casing; the motor also comprises a rotor shaft and a heat pipe, wherein the rotor shaft is provided with a mounting hole along the axial direction, the heat pipe is arranged in the mounting hole and is adjacent to the rotor shaft, and the heat-conducting outer end of the heat pipe is positioned outside the mounting hole; the transmission also comprises a driving wheel, a device cavity is arranged in the speed change shell, the driving wheel is rotatably arranged in the device cavity, the driving end of the rotor shaft and the outer end of the heat pipe extend into the device cavity, the driving end of the rotor shaft is in driving connection with the driving wheel, and cooling oil is arranged in the device cavity.
It is visible by above-mentioned scheme, through be provided with the mounting hole along the axial at the rotor shaft, insert the thermo-optic to the mounting hole, and the heat conduction outer end of heat pipe is located outside the mounting hole, because the heat pipe has more efficient heat-conduction performance, can conduct waste heat to heat conduction outer end department from the rotor shaft rapidly, simultaneously because the device intracavity of derailleur is provided with the drive wheel, and be provided with the coolant oil in the device chamber, the coolant liquid not only plays heat-conduction effect but also can play the lubrication action, so all stretch into the device intracavity with the drive end of rotor shaft and the heat conduction outer end of heat pipe, the drive end and the drive wheel drive of rotor shaft are connected, the heat conduction outer end of heat pipe can contact heat conduction with the coolant oil well, thereby realize high-efficient liquid cooling heat dissipation, effectively reduce the operating temperature.
The driving wheel is provided with a connecting hole along the axial direction, the driving end of the rotor shaft and the heat conduction outer end of the heat pipe both extend into the connecting hole, and the rotor shaft is coaxially and rotatably connected with the driving wheel.
Therefore, the driving wheel, the connecting hole, the rotor shaft and the heat pipe are arranged in parallel, and the rotor shaft and the driving wheel are coaxially and rotatably connected, so that stable assembly and stable operation are facilitated, and the driven and synchronously rotating heat pipe is not interfered with the driving wheel.
The transmission wheel is provided with a communication hole in a penetrating way, and the communication hole is communicated between the connection hole and the device cavity.
It is thus clear that can flow into the connecting hole with the cooling oil through the setting of intercommunicating pore, then can realize flowing ground and the heat conduction outer end contact heat conduction of heat pipe.
The driving end of the rotor shaft is positioned in the driving hole, the driving end of the rotor shaft is provided with an outer tooth part, and the outer tooth part is meshed with the inner tooth part; the outer end of the heat pipe is located at the heat conducting hole.
It is from top to bottom visible, through the connecting hole arrangement of two segmentations, the drive opening passes through tooth portion and receives drive power, and it can receive rotor rotary driving power high-efficiently steadily, and the heat conduction outer end of heat pipe stretches into to the heat conduction hole in, simultaneously because rotor shaft and the coaxial rotation of drive wheel for the heat pipe rotates in the heat conduction hole and will not produce interference or friction problem.
The peripheral wall of the driving wheel at the driving hole is provided with a communication hole in a penetrating way, and the communication hole is communicated between the heat conduction hole and the device cavity.
Therefore, the communication holes are formed in the peripheral wall of the driving hole, so that the cooling oil flows into the heat conduction holes to be in contact with the outer heat conduction end, and the heat conduction efficiency can be further improved.
In a further aspect, the mounting hole is a blind hole, and the opening of the mounting hole is located at the drive end of the rotor shaft.
Therefore, through the arrangement of the blind holes, stable installation and positioning can be provided for the heat pipe, and the heat conduction outer end of the heat pipe extends out of the driving end.
According to a further scheme, a first cooling flow channel is arranged on the peripheral wall of the transmission wheel outside of the speed changing shell, the first cooling flow channel is communicated with a first connector, a second cooling flow channel is arranged on the peripheral wall of the shell outside of the rotor shaft, the second cooling flow channel is communicated with a second connector, and the first connector is connected with the second connector.
It is from top to bottom seen that through setting up first cooling runner in the periphery of drive wheel, during waste heat can transmit the coolant liquid to first cooling runner rapidly through the heat conduction of variable speed casing to the second cooling runner of cooperation motor periphery, first cooling runner and second cooling runner intercommunication realize the high-efficient heat dissipation of integral type then.
In a further scheme, the heat conducting outer end of the heat pipe is provided with a heat radiating fin in a connecting mode.
Therefore, the heat is conducted through the heat dissipation fins with better heat dissipation performance, and the heat can be better transferred with the cooling oil, so that the heat conduction efficiency is further improved.
In a further aspect, a drive end is disposed at an end of the rotor shaft opposite the drive end, and the thermally conductive inner end of the heat pipe extends to the drive end.
It is from top to bottom visible, the heat conduction through the heat pipe is inner to extend to the drive end, and the high-efficient heat conduction through the heat pipe takes the drive end of rotor shaft or the waste heat of mid portion out, makes the rotor shaft evenly dispel the heat then, avoids the high difference in temperature to improve rotor shaft's durability and stability.
In order to realize the second objective of the present invention, the present invention provides a vehicle, including the driving assembly according to the above-mentioned scheme.
Drawings
Fig. 1 is a block diagram of an embodiment of a drive assembly of the present invention.
Figure 2 is an exploded view of an embodiment of the drive assembly of the present invention.
Fig. 3 is a structural diagram of a motor in an embodiment of the drive assembly of the present invention.
Fig. 4 is an exploded view of an electric motor in an embodiment of the drive assembly of the present invention.
Fig. 5 is an exploded view of a transmission in an embodiment of the drive assembly of the present invention.
Figure 6 is a cross-sectional view of an embodiment of the drive assembly of the present invention at the drive wheel.
Figure 7 is a cross-sectional view of an embodiment of the drive assembly of the present invention at the end of the drive.
Fig. 8 is a cross-sectional view of an embodiment of the drive assembly of the present invention at the location of the first cooling flow path.
The present invention will be further explained with reference to the drawings and examples.
Detailed Description
Referring to fig. 1 to 7, the driving assembly includes a transmission 4 and a motor 11, the motor 11 includes a casing 111, a rotor shaft 21, a stator, a cover and a heat pipe 31, the stator and the rotor shaft 21 are disposed in the casing 111, the rotor shaft 21 is rotatably disposed in the stator, the rotor shaft 21 is axially provided with a mounting hole 23, the mounting hole 23 is a blind hole, an opening of the mounting hole 23 is located at a driving end 22 of the rotor shaft 21, the driving end 22 of the rotor shaft 21 is provided with an external tooth portion, a bearing 114 is disposed near an outer periphery of the driving end 22, the bearing 114 is connected between the casing 111 and the rotor shaft 21, and the driving end 22 is located outside the bearing 114. The rotor shaft 21 is provided with a driving end 24 at an end opposite the driving end 22, and the mounting hole 23 extends to the driving end 24.
The heat pipe 31 is mounted in the mounting hole 23 and abuts the rotor shaft 21, i.e. the outer wall of the heat pipe 31 abuts the inner wall of the mounting hole 23 and thus heat conduction is achieved, the heat conducting outer end 32 of the heat pipe 31 is located outside the mounting hole 23 or the drive end 22, and the heat conducting inner end 33 of the heat pipe 31 extends to the drive end 24. The heat conducting outer end 32 of the heat pipe 31 is provided with a plurality of heat dissipating fins 34, the heat dissipating fins 34 are annularly arranged and arranged in parallel, and the heat dissipating fins 34 can also be arranged in different sheets, plates or strips.
The transmission 4 includes a transmission case 41 and a transmission wheel 42, a device chamber 410 is provided in the transmission case 41, the transmission wheel 42 is supported by a bearing 43 at both ends and is rotatably provided in the device chamber 410, the transmission wheel 42 is provided with a connection hole 421 in an axial direction, an opening of the connection hole 421 is arranged toward the motor 11, the connection hole 421 includes a drive hole 4211 and a heat conduction hole 4212 which are axially communicated, the drive hole 4211 is located on an outer side and on a side close to the motor 11, the drive hole 4211 is located on an inner side and thus on the inner side, an inner tooth portion is provided on an inner wall of the drive hole 4211, a peripheral wall of the transmission wheel 42 at the drive hole 4211 is radially provided with two communication holes 423 in a penetrating manner, the two communication holes 423 are symmetrically arranged, the communication holes 423 are communicated between the heat conduction hole 4212 and the device chamber 410, a communication hole 424 is further provided at one axial end of.
When the motor 11 is in driving connection with the transmission 4, the driving end 22 of the rotor shaft 21 and the heat-conducting outer end 32 of the heat pipe 31 both extend into the connection hole 421, the driving end 22 of the rotor shaft 21 is located in the driving hole 4211, the external tooth portion of the driving end 22 is meshed with the internal tooth portion of the driving hole 4211, so that the rotor shaft 21 and the transmission wheel 42 are coaxially and rotationally connected, and the heat-conducting outer end 32 of the heat pipe 31 and the heat radiating fins 34 are located at the heat-conducting hole 4212. Cooling oil is arranged in the device cavity 410, the cooling oil has heat conduction and lubrication functions, and the cooling oil can enter the heat conduction hole 4212 and the driving hole 4211 together with the communication hole 423 and the communication hole 424 to be adjacent to the device, so that waste heat can be driven.
Referring to fig. 3 to 8, the transmission housing 41 is provided with a first cooling flow passage 411 on a circumferential wall outside the transmission wheel 42, the first cooling flow passage 411 is a channel formed in the transmission housing 41, a plurality of heat dissipation columns 412 are provided in the first cooling flow passage 411, the first cooling flow passage 411 extends along the outer periphery of the transmission wheel 42, a radial cross section of the first cooling flow passage 411 is annular, a first connection port 44 and a third connection port 45 are respectively provided on two ends of the first cooling flow passage 411 in a communication manner, and a joint 451 is provided at the third connection port 45. The transmission case 41 is provided with a first connection end surface 442 on a side facing the casing 111, the first connection end surface 442 is perpendicular to the axial direction, the first port 44 is located on the first connection end surface 442, the first port 44 is located on the radial outer side and extends in an annular shape, and a seal ring is further disposed on the outer periphery of the first port 44.
The casing 111 is provided with a second cooling flow channel 113 on the peripheral wall outside the rotor shaft 21, the second cooling flow channel 113 is surrounded by a groove formed in the outer wall of the casing 111 and a cover covering the groove, two ends of the second cooling flow channel 113 are respectively provided with a connector, wherein one end connector close to the transmission 4 is a second connector 115, the casing 111 is provided with a second connecting end surface 116 on one side facing the transmission case 41, the second connecting end surface 116 is perpendicular to the axial direction, the second connector 115 is located on the second connecting end surface 116, the second connector 115 is located on the radial outer side and extends annularly, the second connector 115 is communicated with the second cooling flow channel 113 through two connecting holes 441 extending in the radial direction, and the periphery of the second connector 115 is provided with a sealing ring.
And the arc length of the second interface 115 is smaller than that of the first interface 44, when the connecting end surfaces of the motor and the transmission are jointed, the second interface 115 and the first interface 44 are positioned on the same circumference, and the second interface 115 serving as a cooling liquid outlet of the motor can be communicated with the first interface 44 in an axial projection overlapping mode, so that even if a little error exists in assembly, the flow channel is ensured to be smooth, and the flow speed is not influenced.
A plurality of first connection holes 443 are uniformly formed in the outer periphery of the first connection end surface 442, a plurality of second connection holes 117 are uniformly formed in the outer periphery of the second connection end surface 116, a connection screw (not shown) passes through the first connection hole 443 and the second connection hole 117 to be connected, of course, the connection screw and the second connection hole 117 are connected to the first connection hole 443 or other connection methods, so as to connect the transmission case 41 and the casing 111, the first connection end surface 442 is abutted to the second connection end surface 116, the first connector 44 is connected to the second connector 115, the first cooling flow passage 411 is communicated with the second cooling flow passage 113, the cooling fluid can enter the second cooling flow passage 113 from the side of the motor 11, the waste heat at the casing 111 is conducted to the cooling fluid and then flows into the first cooling flow passage 411 in a unidirectional manner, the waste heat of the rotor shaft 21 is conducted to the cooling oil in the heat conduction hole 4212 through the heat pipe 31 and the heat dissipation fin 34, and the waste heat of the cooling oil is conducted to the cooling fluid in the first cooling flow passage, and finally, the output from the joint 451 to the external liquid cooling circulation system.
The vehicle comprises the driving assembly according to the scheme, and can be a new energy electric car, a new energy electric passenger car, a new energy electric truck, a new energy electric cleaning vehicle, a new energy electric rail vehicle, a new energy electric flying vehicle, a new energy electric shipping vehicle and the like.
Of course, the above-mentioned embodiment is only the preferred embodiment of the present case, in practical application, in response to the difference of the transmission, the drive end of the rotor shaft and the heat conduction outer end of the heat pipe all extend into the device cavity of the transmission, the drive end of the rotor shaft is connected with the drive wheel in a driving manner, the connection manner can adopt the drive connection manner of two external gears or other drive connection manners, and the heat conduction outer end of the heat pipe is not inserted into the drive wheel at this moment, but directly adjoins the cooling oil in the device cavity for heat conduction, or does not set up the heat sink but adopts the arrangement of a plurality of heat dissipating end portions, the above-mentioned change is also based on the concept of the present invention in the protection scope.
From top to bottom, through be provided with the mounting hole along the axial at the rotor shaft, insert the heat light to the mounting hole, and the heat conduction outer end of heat pipe is located outside the mounting hole, because the heat pipe has more efficient heat-conduction performance, can conduct waste heat to heat conduction outer end department from the rotor shaft rapidly, simultaneously because the device intracavity of derailleur is provided with the drive wheel, and be provided with the coolant oil in the device chamber, the coolant liquid not only plays heat-conduction effect and can also play the lubrication action, so all stretch into the device intracavity with the drive end of rotor shaft and the heat conduction outer end of heat pipe, the drive end and the drive wheel drive of rotor shaft are connected, the heat conduction outer end of heat pipe can contact the heat conduction with the coolant oil well, thereby realize high-efficient liquid cooling heat dissipation, effectively reduce the operating temperature of rotor.
And, through set up first cooling runner in the periphery of drive wheel, waste heat can transmit to the coolant liquid of first cooling runner rapidly through the heat conduction of variable speed casing, and the motor periphery also is provided with second cooling runner, and waste heat also can transmit to the coolant liquid of second cooling runner rapidly in the motor to utilize first interface and second interface connection, first cooling runner and second cooling runner intercommunication realize the high-efficient liquid cooling heat dissipation of derailleur and motor integral type then. When the connection end surfaces of the motor and the transmission are connected, even if the connection end surfaces are connected at different circumferential angles, the first interface and the second interface can be smoothly communicated through the annular interfaces which are annularly arranged, and therefore connection fault tolerance is improved. Through the extension arrangement of cooling runner periphery, be annular arrangement further, then the cooling runner forms circumferential cooling circuit to the heat conductivility improves greatly.
Claims (10)
1. A rotor shaft heat pipe heat conduction driving assembly comprises a transmission and a motor, wherein the transmission comprises a speed change shell, the motor comprises a casing, and the speed change shell is connected with the casing;
the method is characterized in that:
the motor also comprises a rotor shaft and a heat pipe, wherein the rotor shaft is provided with a mounting hole along the axial direction, the heat pipe is arranged in the mounting hole and is adjacent to the rotor shaft, and the heat-conducting outer end of the heat pipe is positioned outside the mounting hole;
the transmission further comprises a driving wheel, a device cavity is formed in the speed change shell, the driving wheel is rotatably arranged in the device cavity, the driving end of the rotor shaft and the heat conduction outer end of the heat pipe both extend into the device cavity, the driving end of the rotor shaft is in driving connection with the driving wheel, and cooling oil is arranged in the device cavity.
2. The drive assembly of claim 1, wherein:
the driving wheel is provided with a connecting hole along the axial direction, the driving end of the rotor shaft and the heat conduction outer end of the heat pipe both extend into the connecting hole, and the rotor shaft is coaxially and rotatably connected with the driving wheel.
3. The drive assembly of claim 2, wherein:
the transmission wheel is provided with a communication hole in a penetrating mode, and the communication hole is communicated between the connection hole and the device cavity.
4. The drive assembly of claim 2, wherein:
the connecting hole comprises a driving hole and a heat conducting hole which are communicated along the axial direction, an inner tooth part is arranged on the inner wall of the driving hole, the driving end of the rotor shaft is positioned in the driving hole, an outer tooth part is arranged on the driving end of the rotor shaft, and the outer tooth part is meshed with the inner tooth part;
the heat conducting outer end of the heat pipe is positioned at the heat conducting hole.
5. The drive assembly of claim 4, wherein:
the peripheral wall of the driving wheel at the driving hole is provided with a communication hole in a penetrating mode, and the communication hole is communicated between the heat conduction hole and the device cavity.
6. The drive assembly of claim 1, wherein:
the mounting hole is a blind hole, and the opening of the mounting hole is located at the driving end of the rotor shaft.
7. The drive assembly of claim 1, wherein:
the speed change shell is provided with a first cooling flow channel on the peripheral wall of the outer side of the driving wheel, the first cooling flow channel is communicated with a first interface, the shell is provided with a second cooling flow channel on the peripheral wall of the outer side of the rotor shaft, the second cooling flow channel is communicated with a second interface, and the first interface is connected with the second interface.
8. The drive assembly of any one of claims 1 to 7, wherein:
and the heat conducting outer end of the heat pipe is connected with a radiating fin.
9. The drive assembly of any one of claims 1 to 7, wherein:
the end, opposite to the driving end, of the rotor shaft is provided with a driving end, and the heat conduction inner end of the heat pipe extends to the driving end.
10. Vehicle, characterized in that it comprises a drive assembly according to any one of the preceding claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922498628.XU CN211127356U (en) | 2019-12-31 | 2019-12-31 | Driving assembly for heat conduction of rotor shaft heat pipe and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922498628.XU CN211127356U (en) | 2019-12-31 | 2019-12-31 | Driving assembly for heat conduction of rotor shaft heat pipe and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211127356U true CN211127356U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922498628.XU Active CN211127356U (en) | 2019-12-31 | 2019-12-31 | Driving assembly for heat conduction of rotor shaft heat pipe and vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN211127356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111064299A (en) * | 2019-12-31 | 2020-04-24 | 珠海英搏尔电气股份有限公司 | Driving assembly for heat conduction of rotor shaft heat pipe and vehicle |
-
2019
- 2019-12-31 CN CN201922498628.XU patent/CN211127356U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111064299A (en) * | 2019-12-31 | 2020-04-24 | 珠海英搏尔电气股份有限公司 | Driving assembly for heat conduction of rotor shaft heat pipe and vehicle |
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