CN215751858U - Electric assembly and vehicle with same - Google Patents
Electric assembly and vehicle with same Download PDFInfo
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- CN215751858U CN215751858U CN202122036389.3U CN202122036389U CN215751858U CN 215751858 U CN215751858 U CN 215751858U CN 202122036389 U CN202122036389 U CN 202122036389U CN 215751858 U CN215751858 U CN 215751858U
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Abstract
The utility model discloses an electric assembly and a vehicle with the same, wherein the electric assembly comprises: a first housing; a motor mounted to the first housing; the second shell is connected to one axial end of the first shell; the speed reducer is mounted on the second shell and is in transmission connection with the motor; and the oil pump is arranged on one side of the second shell facing the first shell. The electric assembly provided by the embodiment of the utility model has the advantages of good heat dissipation effect, high space utilization rate and integration level, small required installation space, multiple applicable vehicle types and the like.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to an electric assembly and a vehicle with the same.
Background
In the related art, the electric assembly generally adopts a water cooling mode to dissipate heat for the motor, but the water cooling mode is generally sleeved outside the motor, so that the cooling effect on the motor is poor. Therefore some electric assemblies are through oil cooling for the motor heat dissipation, but oil cooling needs to set up the oil pump, because the position arrangement of oil pump on electric assembly is unreasonable, consequently leads to electric assembly's space utilization and integrated level low, required installation space big, can't be applicable to multiple motorcycle type.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide an electric assembly, which has the advantages of good heat dissipation effect, high space utilization rate and integration level, small required installation space, and multiple applicable vehicle types.
The utility model also provides a vehicle with the electric assembly.
In order to achieve the above object, according to a first aspect of the present invention, an electric motor assembly is provided, including: a first housing; a motor mounted to the first housing; the second shell is connected to one axial end of the first shell; the speed reducer is mounted on the second shell and is in transmission connection with the motor; and the oil pump is arranged on one side of the second shell facing the first shell.
The electric assembly provided by the embodiment of the utility model has the advantages of good heat dissipation effect, high space utilization rate and integration level, small required installation space, multiple applicable vehicle types and the like.
According to some embodiments of the present invention, the first housing is adjacent to one end in a length direction of the second housing, and the oil pump is located on a side of the first housing facing the other end in the length direction of the second housing.
According to some embodiments of the present invention, the oil pump is disposed adjacent to a peripheral wall of the second housing in a width direction of the second housing.
According to some embodiments of the utility model, the retarder comprises: the input shaft is in transmission connection with the motor; the transition shaft is in transmission connection with the input shaft; the output shaft is in transmission connection with the transition shaft, and the oil pump is located between the output shaft and the transition shaft in the length direction of the second shell.
According to some embodiments of the utility model, the electric powertrain further comprises: the filter is installed in the second casing and with the oil pump intercommunication, the filter with the oil pump is located in the width of second casing same one side of output shaft, the oil pump is in the length direction of second casing is located between the filter and the motor.
According to some embodiments of the utility model, the electric powertrain further comprises: the controller is installed on the first shell and the second shell, the oil pump and the controller are located on two sides of the output shaft in the width direction of the second shell, and the controller is connected with the oil pump and the motor respectively.
According to some embodiments of the utility model, the other axial end of the first housing is provided with a support plate, and the support plate is connected with the controller.
According to some embodiments of the present invention, the controller extends in a length direction of the second housing, one end of the controller is located on one side of the first housing in a width direction of the second housing, and the other end of the controller and the oil pump are located on the same side of the first housing in the length direction of the second housing.
According to some embodiments of the utility model, the electric powertrain further comprises: and the oil cooler is arranged on the peripheral wall of the second shell, the oil cooler and the first shell are adjacent to the same end of the second shell in the length direction of the second shell, and the oil cooler and the oil pump are adjacent to two sides of the second shell in the width direction of the second shell.
According to some embodiments of the present invention, the motor includes a stator, a rotor, and a rotating shaft, the rotating shaft is provided with a motor oil passage, an end wall of one end of the rotating shaft facing the speed reducer is provided with an oil inlet hole communicating the cooling oil passage and the motor oil passage, and a peripheral wall of the rotating shaft is provided with an oil outlet hole facing the stator; the second shell is provided with a cooling oil duct, the cooling oil duct is communicated with the oil inlet hole, and the oil pump is communicated with the cooling oil duct.
According to some embodiments of the utility model, the speed reducer is provided with a transition oil passage, an oil guide pipe is arranged in the transition oil passage, the rotating shaft extends into the transition oil passage, one end of the oil guide pipe extends into the oil inlet hole, and the other end of the oil guide pipe extends into the cooling oil passage.
According to a second aspect embodiment of the utility model, a vehicle is provided, comprising the electric motor assembly according to the first aspect embodiment of the utility model.
According to the vehicle of the embodiment of the second aspect of the utility model, by utilizing the electric assembly of the embodiment of the first aspect of the utility model, the advantages of good heat dissipation effect, high space utilization rate and integration degree, small required installation space, multiple applicable vehicle types and the like are achieved.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a motorized assembly according to an embodiment of the present invention.
FIG. 2 is a schematic view of an alternative view of a motorized assembly in accordance with an embodiment of the present invention.
FIG. 3 is a schematic diagram of a further perspective of a motorized assembly in accordance with an embodiment of the present invention.
FIG. 4 is an exploded view of a motorized assembly according to an embodiment of the present invention.
FIG. 5 is a cross-sectional view of a motorized assembly according to an embodiment of the present invention.
FIG. 6 is an exploded view from another perspective of a motorized assembly according to an embodiment of the present invention.
Reference numerals:
an electric assembly 1,
A first casing 100, a support plate 110,
A second casing 300, a cooling gallery 310,
The oil cooler comprises a speed reducer 400, an input shaft 410, a transition shaft 420, an output shaft 430, a transition oil passage 440, an oil guide pipe 450, an oil pump 500, a filter 600, a controller 700, an oil cooler 800, an oil cooling pipeline 810 and fins 820.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
In the description of the present invention, "a plurality" means two or more.
The electric powertrain 1 according to the embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1 to 6, the electromotive assembly 1 includes a first housing 100, a motor 200, a second housing 300, a speed reducer 400, and an oil pump 500. Among them, the oil pump 500 may be an electronic oil pump.
The motor 200 is mounted on the first housing 100, the second housing 300 is connected to one axial end of the first housing 100, the speed reducer 400 is mounted on the second housing 300 and is in transmission connection with the motor 200, and the oil pump 500 is mounted on one side of the second housing 300 facing the first housing 100. Wherein the oil pump 500 may be fixed to the second housing 300 using bolts.
Note that the vertical direction in the drawing is the width direction of the second housing 300, and the oil pump 500 is located below the second housing 300; the left-right direction in the drawing is the length direction of the second housing 300, and the oil pump 500 is located on the left side of the second housing 300; the front-rear direction in the drawing is the axial direction of the first casing 100, and the second casing 300 is located in front of the first casing 100.
According to the electric assembly 1 of the embodiment of the utility model, the motor 200 is mounted on the first housing 100, the second housing 300 is connected to one axial end of the first housing 100, and the speed reducer 400 is mounted on the second housing 300 and is in transmission connection with the motor 200, wherein the internal space of the first housing 100 and the internal space of the second housing 300 can be communicated, that is, the motor 200 and the speed reducer 400 are jointly wrapped by the first housing 100 and the second housing 300, so that complete housings do not need to be respectively provided for the motor 200 and the speed reducer 400, which is beneficial to saving cost and parts and reducing weight. Also, the power of the motor 200 may be transmitted to the wheels through the decelerator 400 so that the rotation speed of the wheels is lower than that of the decelerator 400, and thus the movement of the vehicle is more smooth.
In addition, the oil pump 500 is installed at one side of the second housing 300 facing the first housing 100, and the oil pump 500 can pump lubricating oil into the motor 200 and the speed reducer 400 to lubricate and cool the motor 200 and the speed reducer 400, compared with a water-cooled heat dissipation electric assembly, the electric assembly 1 of the present invention has the advantages of higher heat dissipation efficiency, more reasonable design of the electric assembly 1, high space utilization rate and integration level, small required installation space, convenience for assembly of the whole vehicle, and more adaptable vehicle types.
Therefore, the electric assembly 1 provided by the embodiment of the utility model has the advantages of good heat dissipation effect, high space utilization rate and integration level, small required installation space, multiple applicable vehicle types and the like.
According to some embodiments of the present invention, as shown in fig. 1, the first housing 100 is adjacent to one end of the second housing 300 in the length direction, and the oil pump 500 is located at one side of the first housing 100 facing the other end of the second housing 300 in the length direction. This not only completes the arrangement of the first housing 100 and the oil pump 500, but also reserves a space for the second housing 300 in its longitudinal direction to connect with other parts of the vehicle, more fully utilizing the space in the longitudinal direction of the second housing 300.
According to some embodiments of the present invention, as shown in fig. 1, the oil pump 500 is disposed adjacent to a peripheral wall of the second housing 300 in a width direction of the second housing 300. Thus, the oil pump 500 is not easily interfered with the motor 200 and the reducer 400 in the electric assembly 1, and the operation reliability of the electric assembly 1 is ensured while the space utilization rate of the electric assembly 1 is improved.
According to some embodiments of the present invention, as shown in fig. 5 and 6, the reducer 400 includes an input shaft 410, a transition shaft 420, and an output shaft 430.
The input shaft 410 is in transmission connection with the motor 200, the transition shaft 420 is in transmission connection with the input shaft 410, the output shaft 430 is in transmission connection with the transition shaft 420, and the oil pump 500 is located between the output shaft 430 and the transition shaft 420 in the length direction of the second housing 300. Because output shaft 430 will be connected with other parts transmission of vehicle, consequently dodge output shaft 430 with oil pump 500, be favorable to avoiding oil pump 500 to take place to interfere with other parts of vehicle, and be favorable to oil pump 500 to pump oil, reduce the volume of oil pump 500.
Optionally, as shown in fig. 1 and 4, the electric assembly 1 further includes a filter 600, the filter 600 is mounted in the second housing 300 and is communicated with the oil pump 500, the filter 600 and the oil pump 500 are located on the same side of the output shaft 430 in the width direction of the second housing 300, and the oil pump 500 is located between the filter 600 and the motor 200 in the length direction of the second housing 300, which is beneficial for the oil pump 500 to pump oil and reduces the volume of the oil pump 500.
The filter 600 may be used to filter the lubricant oil pumped by the oil pump 500, so as to prevent the transmission in the battery assembly from being damaged due to impurities in the lubricant oil. And, the distance between filter 600 and oil pump 500 is relatively short, so that the lubricating oil coming out of oil pump 500 can enter filter 600 in a shorter time, which can increase the efficiency of filter 600 for filtering lubricating oil.
According to some embodiments of the present invention, as shown in fig. 3 and 4, the electric assembly 1 further includes a controller 700, the controller 700 is mounted to the first housing 100 and the second housing 300, the oil pump 500 and the controller 700 are located on both sides of the output shaft 430 in the width direction of the second housing 300, and the controller 700 is connected to the oil pump 500 and the motor 200, respectively. The controller 700 is fixed to the first housing 100 and the second housing 300 by bolts.
For example, the controller 700 may control whether not only the oil pump 500 pumps oil, but also the motor 200 and the decelerator 400 operate. A cooler is also provided in the vehicle, and the controller 700 may dissipate heat through a cooling medium in the cooler. The controller 700 of the embodiment of the present invention is installed above the first casing 100 and above the second casing 300, and compared with a controller that is only installed above the second casing in the related art, the height of the controller 700 of the embodiment of the present invention is greatly reduced, which is beneficial to reducing the size of the electric assembly 1 in the vertical direction.
Further, as shown in fig. 1, the other axial end of the first housing 100 is provided with a support plate 110, and the support plate 110 is connected to the controller 700.
The second housing 300 can effectively support one side edge of the controller 700 in the front-back direction, and by providing the support plate 110, the dimension of the upper side edge of the support plate 110 in the left-right direction is close to or opposite to the dimension of the controller 700 in the left-right direction, the support plate 110 can effectively support the other side edge of the controller 700 in the front-back direction, the support under the controller 700 is more sufficient, which is beneficial to fixing the relative position of the controller 700 and the second housing 300, and the structural stability of the electric assembly 1 is improved.
Moreover, the size of the controller 700 in the left-right direction can be set larger, that is, the size of the controller 700 in the left-right direction can be larger than the size of the first housing 100 in the left-right direction, which is beneficial to reducing the height of the controller 700, and further reducing the height of the electric assembly 1.
Specifically, the controller 700 extends in the length direction of the second housing 300, one end of the controller 700 is located at one side of the first housing 100 in the width direction of the second housing 300, and the other end of the controller 700 and the oil pump 500 are located at the same side of the first housing 100 in the length direction of the second housing 300.
In other words, the controller 700, the first housing 100, and the second housing 300 form an accommodating space in which the oil pump 500 is located. Thus, the controller 700, the oil pump 500, and the first housing 100 are located on the same side in the thickness direction of the second housing 300, the controller 700, and the oil pump 500 are located on the same side in the length direction of the first housing 100 as the first housing 100, and the oil pump 500, the first housing 100, and the second housing 300 are located on the same side in the thickness direction of the controller 700.
Therefore, the space of the electric assembly 1 is more effectively utilized, the arrangement space required by the electric assembly 1 is reduced, and the integration level of the electric assembly 1 is improved.
According to some embodiments of the present invention, as shown in fig. 2 and 4, the electric powertrain 1 further includes an oil cooler 800, the oil cooler 800 is mounted to a peripheral wall of the second housing 300, the oil cooler 800 and the first housing 100 are adjacent to the same end of the second housing 300 in a length direction of the second housing 300, and the oil cooler 800 and the oil pump 500 are adjacent to both sides of the second housing 300 in a width direction of the second housing 300. The oil cooler 800 is fixed to the first casing 100 by bolts.
For example, since the diameter of the input shaft 410 may be smaller than the diameter of the transition shaft 420 and the diameter of the output shaft 430, the width of the second housing 300 at the input shaft 410 is smaller, the oil cooler 800 corresponds to the position of the input shaft 410, the lower side surface of the second housing 300 is located on the same plane, the oil cooler 800 is mounted on the upper side surface of the second housing 300, the upper side surface of the second housing 300 where the oil cooler 800 is mounted is inclined and extended downward gradually in a direction away from the output shaft 430, so that the distance between the highest point of the oil cooler 800 and the upper side surface of the second housing 300 in the up-down direction is smaller, the size of the electric assembly 1 in the up-down direction is not increased, and the oil cooler 800 is not required to be mounted on the side surfaces of the electric assembly 1 in the left-right direction, the size of the electric assembly 1 in the left-right direction is also reduced, thereby facilitating the miniaturization of the electric assembly 1.
In addition, the oil cooler 800 may include an oil cooling pipe 810 and fins 820 sleeved on the oil cooling pipe 810, and the fins 820 may increase a heat exchange area between the oil cooler 800 and air to improve a heat dissipation efficiency of the lubricant oil in the oil cooler 800.
According to some embodiments of the present invention, as shown in fig. 5 and 6, the motor 200 includes a stator 210, a rotor 220, and a rotation shaft 230. The rotation shaft 230 is provided with a motor oil passage 231, an end wall of the rotation shaft 230, facing one end of the speed reducer 400, is provided with an oil inlet hole 232 communicating the cooling oil passage 310 with the motor oil passage 231, the circumferential wall of the rotation shaft 230 is provided with an oil outlet hole 233 facing the stator 210, the second housing 300 is provided with a cooling oil passage 310, the cooling oil passage 310 is communicated with the oil inlet hole 232, and the oil pump 500 is communicated with the cooling oil passage 310.
The flow path of the lubricating oil in the electric motor assembly 1 is described by way of example with reference to the accompanying drawings:
first, the oil pump 500 pumps up the coarsely-filtered lubricating oil from an oil reservoir in the vehicle, which stores the lubricating oil;
next, the coarsely filtered lubricant is finely filtered through a filter 600;
then, the lubricating oil after fine filtration flows into the cooling oil passage 310 after being cooled by the oil cooler 800;
finally, the lubricant oil flows into the motor oil passage 231 through the oil inlet 232, and the rotation shaft 230 rotates to throw the lubricant oil in the motor oil passage 231 out of the oil outlet 233 to the stator 210 and the rotor 220.
In this way, the lubricant oil can dissipate heat of the rotor 220 and the stator 210 of the motor 200, so as to reduce the temperature of the motor 200 and keep the motor 200 in an efficient working state, compared with an electric assembly for dissipating heat of the motor through water cooling, the electric assembly 1 of the present invention has higher heat dissipation efficiency of the motor 200, and further, the power of the motor 200 may be increased.
Further, the speed reducer 400 is provided with a transition oil passage 440, an oil guide pipe 450 is arranged in the transition oil passage 440, the rotating shaft 230 extends into the transition oil passage 440, one end of the oil guide pipe 450 extends into the oil inlet 232, and the other end of the oil guide pipe 450 extends into the cooling oil passage 310.
The transition oil passage 440 is disposed on the input shaft 410, an inner circumferential surface of the transition oil passage 440 may be provided with an inner spline, an outer circumferential surface of a portion of the rotating shaft 230 extending into the transition oil passage 440 may be provided with an outer spline, the inner spline and the outer spline are engaged, and the input shaft 410 and the rotating shaft 230 may be coaxially disposed, so that power transmission between the rotating shaft 230 and the input shaft 410 is facilitated.
Through the arrangement of the oil guide pipe 450, lubricating oil can conveniently flow into the cooling oil passage 310, and the lubricating oil is prevented from entering a gap between the inner circumferential surface of the transition oil passage 440 and the outer circumferential surface of the input shaft 410, because the rotating shaft 230 and the input shaft 410 do not rotate relatively, namely, heat is not generated between the rotating shaft 230 and the input shaft 410 due to relative friction, so that the rotating shaft 230 and the input shaft 410 do not need to be lubricated or radiated, and the utilization rate of the lubricating oil can be improved.
A vehicle according to an embodiment of the present invention, which includes the electric powertrain 1 according to the above-described embodiment of the present invention, is described below with reference to the drawings.
According to the vehicle provided by the embodiment of the utility model, by utilizing the electric assembly 1 provided by the embodiment of the utility model, the advantages of good heat dissipation effect, high space utilization rate and integration level, small required installation space, more applicable vehicle types and the like are achieved.
Other constructions and operations of the electric powertrain 1 and the vehicle according to the embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. An electric powertrain, comprising:
a first housing;
a motor mounted to the first housing;
the second shell is connected to one axial end of the first shell;
the speed reducer is mounted on the second shell and is in transmission connection with the motor;
and the oil pump is arranged on one side of the second shell facing the first shell.
2. The electric powertrain of claim 1, wherein the first housing is adjacent to one lengthwise end of the second housing, and the oil pump is located on a side of the first housing that faces the other lengthwise end of the second housing.
3. The electric powertrain according to claim 1, wherein the oil pump is disposed adjacent to a peripheral wall of the second housing in a width direction of the second housing.
4. The electric powertrain of claim 1, wherein the speed reducer comprises:
the input shaft is in transmission connection with the motor;
the transition shaft is in transmission connection with the input shaft;
the output shaft is in transmission connection with the transition shaft, and the oil pump is located between the output shaft and the transition shaft in the length direction of the second shell.
5. The electric powertrain of claim 4, further comprising:
the filter is installed in the second casing and with the oil pump intercommunication, the filter with the oil pump is located in the width of second casing same one side of output shaft, the oil pump is in the length direction of second casing is located between the filter and the motor.
6. The electric powertrain of claim 1, further comprising:
the controller is installed on the first shell and the second shell, the oil pump and the controller are located on two sides of the output shaft in the width direction of the second shell, and the controller is connected with the oil pump and the motor respectively.
7. The power assembly as recited in claim 6, wherein the other axial end of the first housing is provided with a support plate, the support plate being connected to the controller.
8. The electromotive assembly according to claim 6, wherein the controller extends in a length direction of the second housing, one end of the controller is located on one side of the first housing in a width direction of the second housing, and the other end of the controller and the oil pump are located on the same side of the first housing in the length direction of the second housing.
9. The electric powertrain of claim 1, further comprising:
and the oil cooler is arranged on the peripheral wall of the second shell, the oil cooler and the first shell are adjacent to the same end of the second shell in the length direction of the second shell, and the oil cooler and the oil pump are adjacent to two sides of the second shell in the width direction of the second shell.
10. The electric assembly according to any one of claims 1 to 9, wherein the motor includes a stator, a rotor, and a rotating shaft, the rotating shaft is provided with a motor oil passage, an end wall of the rotating shaft, which is toward one end of the speed reducer, is provided with an oil inlet hole communicating the cooling oil passage and the motor oil passage, and a peripheral wall of the rotating shaft is provided with an oil outlet hole toward the stator;
the second shell is provided with a cooling oil duct, the cooling oil duct is communicated with the oil inlet hole, and the oil pump is communicated with the cooling oil duct.
11. The electric assembly according to claim 10, wherein the speed reducer is provided with a transition oil passage, an oil guide pipe is arranged in the transition oil passage, the rotating shaft extends into the transition oil passage, and one end of the oil guide pipe extends into the oil inlet hole and the other end of the oil guide pipe extends into the cooling oil passage.
12. A vehicle, characterized in that it comprises an electric motor pack according to any one of claims 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122036389.3U CN215751858U (en) | 2021-08-26 | 2021-08-26 | Electric assembly and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122036389.3U CN215751858U (en) | 2021-08-26 | 2021-08-26 | Electric assembly and vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215751858U true CN215751858U (en) | 2022-02-08 |
Family
ID=80079429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122036389.3U Active CN215751858U (en) | 2021-08-26 | 2021-08-26 | Electric assembly and vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215751858U (en) |
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2021
- 2021-08-26 CN CN202122036389.3U patent/CN215751858U/en active Active
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Effective date of registration: 20221206 Address after: No. 3009, BYD Road, Pingshan District, Shenzhen, Guangdong 518118 Patentee after: BYD Co.,Ltd. Patentee after: Hefei BYD Automobile Co.,Ltd. Address before: No. 3009, BYD Road, Pingshan District, Shenzhen, Guangdong 518118 Patentee before: BYD Co.,Ltd. |