CN221162198U - Powertrain and vehicle - Google Patents

Powertrain and vehicle Download PDF

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Publication number
CN221162198U
CN221162198U CN202321357237.6U CN202321357237U CN221162198U CN 221162198 U CN221162198 U CN 221162198U CN 202321357237 U CN202321357237 U CN 202321357237U CN 221162198 U CN221162198 U CN 221162198U
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CN
China
Prior art keywords
oil
housing
powertrain
pipe
motor
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CN202321357237.6U
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Chinese (zh)
Inventor
陈广全
陈大启
谢超
罗云毅
肖宇晗
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN202321357237.6U priority Critical patent/CN221162198U/en
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Abstract

The utility model discloses a power assembly and a vehicle, wherein the power assembly comprises: the device comprises a box shell and an oil circuit system, wherein the box shell is provided with a motor cavity and a speed changer cavity, a motor is arranged in the motor cavity, a speed changer is arranged in the speed changer cavity, the speed changer comprises a main shaft, and the main shaft is a hollow rotating shaft and is in transmission connection with the motor; the oil outlet of the oil circuit system is divided into a first branch flow and a second branch flow, the first branch flow is connected with the motor cavity, and the second branch flow is connected with the inner hole of the main shaft. According to the power assembly provided by the embodiment of the utility model, the temperature adjusting effect of each part in the power assembly can be optimized, and the heat balance in the power assembly is improved.

Description

Powertrain and vehicle
Technical Field
The utility model relates to the technical field of vehicles, in particular to a power assembly and a vehicle with the power assembly.
Background
When the motor is integrated in the electric drive gearbox, the heat emitted by the motor needs to be balanced in time so as to ensure that the motor can operate at high efficiency within an allowable temperature range, and electric energy is fully utilized. This puts more stringent demands on the heat dissipation performance of the electrically driven transmission.
In the motor cooling system in the related art, after the motor shaft rotates, a thread groove on the motor shaft sucks oil on an oil feeding core into the groove and leads to the front end of the motor shaft, lubricating oil flows to an oil guiding cavity from the thread groove, and then the lubricating oil flows back to the oil returning core through a through hole on a motor shell to realize the flow of cooling oil in the motor, so that the whole cooling of the motor is realized.
The cooling and lubricating requirements of the electric drive gearbox in the related art cannot be met at the same time, and the heat balance is low.
Disclosure of utility model
The utility model aims to provide a power assembly which utilizes oil to split into a motor cavity and a transmission cavity, so that the temperature adjusting effect of each part in the power assembly can be optimized, and the heat balance in the power assembly is improved.
Another object of the present utility model is to provide a vehicle having the powertrain.
According to an embodiment of the present utility model, a powertrain includes: the gearbox comprises a box shell and an oil circuit system, wherein the box shell is provided with a motor cavity and a speed changer cavity, a motor is arranged in the motor cavity, a speed changer is arranged in the speed changer cavity, the speed changer comprises a main shaft, and the main shaft is a hollow rotating shaft and is in transmission connection with the motor; the oil outlet of the oil way system is split into a first branch flow and a second branch flow, the first branch flow is connected with the motor cavity, and the second branch flow is connected with the inner hole of the main shaft.
According to the power assembly provided by the embodiment of the utility model, the oil is utilized to split the motor cavity and the transmission cavity, so that the temperature adjusting effect of each part in the power assembly can be optimized, and the heat balance in the power assembly is improved.
In addition, the powertrain according to the above embodiment of the present utility model may further have the following additional technical features:
optionally, the oil circuit system includes: the oil distribution pipe is provided with an oil inlet, a first oil outlet and a second oil outlet, a first branch is arranged between the oil inlet and the first oil outlet, and a second branch is arranged between the oil inlet and the second oil outlet.
Optionally, the shunt oil pipe and the case are of a split structure and are embedded into the peripheral wall of the case.
Optionally, a first flow passage and a second flow passage are formed in the wall of the case, the first flow passage is respectively communicated with the first oil outlet and the motor cavity, and the second flow passage is respectively communicated with the second oil outlet and the inner hole of the main shaft.
Optionally, the housing comprises a first housing and a second housing, the first housing and the second housing are in stacked engagement, the motor cavity is located in the first housing, and the transmission cavity is located between the first housing and the second housing, the first flow passage is located in a wall of the first housing, and the second flow passage is located in a wall of the second housing.
Optionally, the oil distribution pipe extends along the stacking direction, two ends of the oil distribution pipe are respectively configured into the first oil outlet and the second oil outlet, and the oil inlet is positioned on the peripheral wall of the oil distribution pipe.
Optionally, the oil circuit system further comprises an oil cooler and an oil pump, wherein the oil cooler is connected with an oil inlet of the shunt oil pipe and exchanges heat with a medium in the oil circuit system; the oil pump is connected with the oil way system and drives the oil in the case to enter the oil way system.
Optionally, the oil circuit system includes: one end of the first oil pipe is connected with the oil pump, and the other end of the first oil pipe is connected with an oil inlet of the oil cooler; and one end of the second oil pipe is connected with an oil outlet of the oil cooler, and the other end of the second oil pipe is connected with an oil inlet of the split oil pipe.
Optionally, the first oil pipe and the second oil pipe are both in a split structure with the case shell, and the first oil pipe and the second oil pipe are arranged in the transmission cavity.
Optionally, the case has first interface, second interface, third interface and fourth interface, the oil pump is connected first interface with the second interface, the oil cooler is connected the third interface with the fourth interface, wherein, first oil pipe one end is connected the second interface, and the other end is connected the third interface, the one end of second oil pipe is connected the fourth interface.
Optionally, the oil pump is mounted outside a side wall of the case.
Optionally, the oil cooler is mounted outside a side wall of the tank.
Optionally, the power assembly further comprises a filter, the filter is configured to filter oil, the filter is mounted on the outer side of the side wall of the case, and the filter and the oil pump are arranged side by side.
Optionally, the second tributary enters the motor cavity through the inner hole of the main shaft, and the motor cavity is communicated with the transmission cavity, so that oil in the motor cavity flows into the transmission cavity.
Optionally, a regulating valve is mounted on the housing, the regulating valve configured to regulate flow from the outlet of the oil circuit system to the transmission cavity.
A vehicle according to an embodiment of the utility model comprises a powertrain according to the foregoing.
Drawings
FIG. 1 is a schematic illustration of a powertrain according to one embodiment of the present utility model.
FIG. 2 is a schematic illustration of a lubrication circuit of a powertrain according to one embodiment of the present utility model.
FIG. 3 is a schematic diagram of a second housing and associated components of a powertrain according to one embodiment of the present utility model.
Fig. 4 is a schematic diagram of the distribution of oil passages in a second housing in a powertrain according to an embodiment of the present utility model.
FIG. 5 is a schematic illustration of a second housing in a powertrain coupled to a first oil line and a second oil line in accordance with an embodiment of the present utility model.
FIG. 6 is a schematic illustration of a vehicle according to one embodiment of the utility model.
Reference numerals: 100. a vehicle; 10. a power assembly; 11. a case shell; 111. a first housing; 1111. a first flow passage; 112. a second housing; 1121. a second flow passage; 101. a motor cavity; 102. a transmission cavity; 12. an oil circuit system; 1201. a first substream; 1202. a second substream; 121. a first oil pipe; 122. a second oil pipe; 123. a shunt oil pipe; 1203. an oil inlet; 1204. a first oil outlet; 1205. a second oil outlet; 13. an oil cooler; 14. an oil pump; 15. a motor; 151. a rotor shaft; 16. a transmission; 161. a main shaft; 1601. an inner bore; 17. a regulating valve; 18. a filter.
Detailed Description
In the related art, air cooling, water cooling and natural cooling are generally adopted for cooling the motor, the cooling effect of the air cooling and the natural cooling in the closed electric drive gearbox is poor, the water cooling is not only complex in water channel structure, but also large in water jacket volume, and the real-time cooling of the motor and the miniaturization of the electric drive gearbox are not facilitated. Aiming at the problems and the defects existing in the related art, the utility model provides an emerging oil-cooled motor lubrication system, which can improve the power density of the motor and simultaneously ensure that the cooling and the lubrication of a bearing of the motor can be satisfied.
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
Referring to fig. 1 and 2, a powertrain 10 according to an embodiment of the present utility model may be used in a vehicle, sanitation, transportation, etc. The powertrain 10 may include: a case 11 and an oil path system 12. The temperature adjustment of the powertrain 10 is achieved by the oil passage system 12 or the like.
Specifically, the housing 11 has a motor chamber 101 and a transmission chamber 102, wherein the motor chamber 101 houses the motor 15, the transmission chamber 102 houses the transmission 16, and the motor 15 is in driving connection with the transmission 16. The transmission 16 includes a main shaft 161, the main shaft 161 having an internal bore 1601 and being in driving connection with the motor 15. The oil flow of the oil passage system 12 is split into a first branch flow 1201 and a second branch flow 1202, the first branch flow 1201 is connected to the motor chamber 101 to lubricate and dissipate heat from components in the motor chamber 101, and the second branch flow 1202 is connected to the inner hole 1601 of the main shaft 161.
The discharge of oil is split into a first branch 1201 and a second branch 1202 to direct oil to the motor cavity 101 and to the bore 1601 of the main shaft 161. Thus, the balance of the temperature in the power assembly 10 is realized by the flow of the oil in the power assembly 10, and the performance of the power assembly 10 is optimized.
According to the power assembly 10 of the embodiment of the utility model, the power assembly 10 utilizes oil to split the oil to the motor cavity 101 and the inner hole 1601 of the main shaft 161, so that the temperature adjusting effect of each part in the power assembly 10 can be optimized, and the heat balance in the power assembly 10 can be improved.
Wherein, can form the oil circuit circulation in the power assembly 10 through the oil circuit system 12, be convenient for realize the temperature regulation in the power assembly 10 to improve the temperature balance of each district of power assembly 10. The oil at the bottom of the casing 11 may be sent to the oil path system 12, and the oil may be sent to different areas in the power assembly 10 through the oil path system 12, for example, to the motor cavity 101, the upper portion of the inner hole 1601 of the main shaft 161, etc. to achieve effective lubrication and cooling of the power system, or may combine with a power and cooling system externally connected to the power assembly, and use an external pump, a cooler, etc. to regulate the temperature in the power assembly 10. The oil passage system 12 and other structures will be further described below.
In the present utility model, the oil passage system 12 may be formed in the wall of the case 11, and a flow passage may be formed in the wall of the case 11 to form the oil passage system 12. Of course, in order to facilitate the formation of the oil circuit system 12 and reduce the cost of the tank body, the present utility model is mainly described by taking the oil circuit system 12 and the tank shell 11 as separate examples.
In some embodiments of the utility model, as shown in fig. 3 and 4, oil circuit system 12 includes a split oil pipe 123, split oil pipe 123 having an oil inlet 1203, a first oil outlet 1204, and a second oil outlet 1205, first oil outlet 1204 being connected to motor cavity 101, and second oil outlet 1205 being connected to an inner bore 1601 of main shaft 161. Wherein, a first branch 1201 is arranged between the oil inlet 1203 and the first oil outlet 1204, and a second branch 1202 is arranged between the oil inlet 1203 and the second oil outlet 1205. The oil is conveniently split through the split oil pipe 123, and the stable diversion effect of the oil by the oil way system 12 is improved.
The oil may enter the split oil pipe 123 through the oil inlet 1203, so as to split the oil.
The split oil pipe 123 and the case 11 are of a split structure, and are embedded in the peripheral wall of the case 11. Therefore, the structure of the case 11 can be simplified, the problem that the case 11 is difficult to form due to the fact that too many oil path structures are arranged in the wall of the case 11 is avoided, and the production cost of the case 11 is reduced. In addition, the split type oil distribution pipe 123 reduces the failure rate of the oil path and reduces the maintenance cost after the oil path fails. In addition, the split oil pipe 123 is embedded into the peripheral wall of the case 11, so that the occupied space of the split oil pipe 123 can be occupied, the split oil pipe 123 can be more conveniently connected with the motor cavity 101 and the inner hole 1601 of the main shaft 161, the circulation of oil is facilitated, the oil resistance is reduced, and the lubrication and temperature regulation effects of the oil on the power assembly 10 are improved.
Therein, as shown in fig. 4, the wall of the casing 11 may have a first flow passage 1111 and a second flow passage 1121 therein, the first flow passage 1111 communicating with the first oil outlet 1204 and the motor chamber 101, respectively, and the second flow passage 1121 communicating with the second oil outlet 1205 and the inner bore 1601 of the main shaft 161, respectively. The oil can be split through the combination of the oil way system 12, the first flow passage 1111 and the second flow passage 1121, so that the oil can flow along a preset track, the oil way system 12 can be controlled conveniently, and the stability of the total lubrication system of the power assembly 10 is improved.
In addition, oil may also be directed through the split oil line 123 to the motor cavity 101 and the bore 1601 of the main shaft 161.
As shown in fig. 1, in some embodiments of the utility model, the housing 11 includes a first housing 111 and a second housing 112, the first housing 111 and the second housing 112 are in stacked engagement, the motor cavity 101 is located within the first housing 111, and the transmission cavity 102 is located between the first housing 111 and the second housing 112, the first fluid passage 1111 is located within a wall of the first housing 111, and the second fluid passage 1121 is located within a wall of the second housing 112. The installation of the diverting oil pipe 123 is simplified, the communication of the diverting oil pipe 123 with the first flow passage 1111 and the second flow passage 1121 is facilitated, and the structure of the casing 11 is simplified. Meanwhile, the motor 15 and the transmission 16 are convenient to install, and the assembly efficiency of the power assembly 10 is improved.
In addition, the split oil pipe 123 may be extended in the stacking direction, and in addition, both ends of the split oil pipe 123 are configured as a first oil outlet 1204 and a second oil outlet 1205, respectively, and the oil inlet 1203 is located on the peripheral wall of the split oil pipe 123. The molding of the split oil pipe 123 can be facilitated, and the molding efficiency of the split oil pipe 123 can be improved.
The first housing 111 may have a first flow channel 1111 and a first groove portion (refer to a position in the first housing 111 in fig. 4 where the split oil pipe 123 is inserted), wherein one end of the first groove portion is connected to the first flow channel 1111, and the other end is located on an end surface of the first housing 111; the second casing 112 may have a second flow passage 1121 and a second groove portion (see a position of the second casing 112 in fig. 4 where the split oil pipe 123 is inserted) therein, one end of the second groove portion is connected to the second flow passage 1121, and the other end is located on an end surface of the second casing 112, and when the first casing 111 and the second casing 112 are stacked and assembled, the end surface of the first casing 111 and the end surface of the second casing 112 are in contact with each other, and the first groove portion and the second groove portion are in butt joint. Wherein at least a portion of the split oil pipe 123 is inserted into the first groove portion, wherein alternatively, the split oil pipe 123 may be entirely inserted into the first groove portion, or a portion of the split oil pipe 123 may be inserted into the first groove portion, and another portion may be inserted into the second groove portion.
In addition, referring to fig. 4, the first groove portion is formed therein with a first section and a second section having different radial dimensions, the first section is connected to the second section, and the radial dimension of the second section is greater than the radial dimension of the first section to form a stepped surface between the first section and the second section, the second section is closer to an end surface of the first housing 111 than the first section, a first flange is provided on an outer circumferential surface of the third pipe portion, and the first flange may be supported on the aforementioned stepped surface to achieve the engagement of the third pipe portion with the first housing 111.
Alternatively, when a part of the shunt oil pipe 123 is inserted into the first groove portion and another part is inserted into the second groove portion, the outer peripheral surface of the third pipe portion may be further provided with a second flange which abuts on the end surface of the second housing 112. Wherein, sealing rings are arranged between the third pipe part and the inner peripheral surface of the first groove part and between the third pipe part and the inner peripheral surface of the second groove part.
In addition, as shown in fig. 2 and 4, a regulating valve 17 may be further installed on the second housing 112, and the regulating valve 17 may regulate the flow rate of the second flow passage 1121. Wherein, the second shell 112 is provided with a mounting hole, one end of the mounting hole is communicated with the second flow passage 1121, and the other end of the mounting hole extends to the outer surface of the second shell 112, and the regulating valve 17 is arranged at the outer side of the second shell 112 and extends into the mounting hole to regulate the flow of the second flow passage 1121.
As shown, the oil circuit system 12 further comprises an oil cooler 13 and an oil pump 14, wherein the oil cooler 13 is connected with an oil inlet 1203 of the split-flow oil pipe 123 and exchanges heat with a medium in the oil circuit system 12. The oil pump 14 is connected to the oil passage system 12 and drives the oil in the housing 11 into the oil passage system 12. The oil pump 14 can drive the oil to circulate along the oil way system 12, and exchanges heat with the oil when passing through the oil cooler 13, and the oil is sent to the diversion oil pipe 123 after passing through the oil cooler 13 for heat exchange.
In some embodiments of the present utility model, as shown in fig. 2 and 3, the oil path system 12 includes a first oil pipe 121 and a second oil pipe 122, wherein one end of the first oil pipe 121 is connected to the oil pump 14, and the other end is connected to an oil inlet of the oil cooler 13. One end of the second oil pipe 122 is connected to the oil outlet of the oil cooler 13, and the other end is connected to the oil inlet 1203 of the split oil pipe 123. The oil pump 14 and the oil cooler 13 can be connected by the first oil pipe 121, the oil pumped by the oil pump 14 is led into the oil cooler 13 to adjust the temperature of the oil, and after the oil passes through the temperature adjustment of the oil cooler 13, the oil is led out by the second oil pipe 122 and is led to the inner hole 1601 of the motor cavity 101 and the main shaft 161, so that the oil can conveniently circulate through the oil circuit system 12, and the structure of the case 11 can be simplified by utilizing the combination of the first oil pipe 121 and the second oil pipe 122 to simplify the structure of the case 11.
The first oil pipe 121 and the second oil pipe 122 are both in a split structure with the case 11, and the first oil pipe 121 and the second oil pipe 122 are disposed in the transmission cavity 102. Therefore, the structure of the oil circuit system 12 can be simplified, the influence of the oil circuit system 12 on the box shell 11 is further avoided, the structural stability of the power assembly 10 is improved, and the production, the assembly and the maintenance of the power assembly 10 are facilitated.
The first oil pipe 121, the second oil pipe 122, and the split oil pipe 123 may be split type pipes, or at least two of the first oil pipe 121, the second oil pipe 122, and the split oil pipe 123 may be integrated pipes, for example, the second oil pipe 122 and the split oil pipe 123 may be integrated pipes.
Optionally, the case 11 has a first port 1101, a second port, a third port, and a fourth port, the oil pump 14 connects the first port 1101 and the second port, and the oil cooler 13 connects the third port and the fourth port. One end of the first oil pipe 121 is connected with the second interface, the other end is connected with the third interface, and one end of the second oil pipe 122 is connected with the fourth interface. The first oil pipe 121 and the second oil pipe 122 can be stably installed in the casing 11, improving the stability of the oil passage system 12 mated with the casing 11.
Referring to fig. 3, the first port 1101 is disposed at the lower portion of the housing 11, the second port is blocked by the lower end of the first oil pipe 121, the third port is blocked by the upper end of the first oil pipe 121, and the fourth port is blocked by the right end of the second oil pipe 122, so the second port, the third port, and the fourth port are not shown.
In addition, the first oil pipe 121 is in plug-in fit with one of the second interface and the third interface, and is sealed by a sealing ring arranged between the oil pipe and the interface, so that radial sealing is realized, and sealing stability is improved. The second oil pipe 122 is in plug-in fit with the fourth interface and is sealed by a sealing ring arranged between the oil pipe and the interface, so that radial sealing is realized, and sealing stability is improved.
As shown in fig. 5, the upper end of the first oil pipe 121 and the right end of the second oil pipe 122 are close to each other, or the third port and the fourth port are close to each other, so that the oil cooler can be directly connected through the point port and the fourth port to realize cooling of oil.
The oil pump 14 may be mounted on the case, or may be mounted at other positions, for example, the oil pump 14 may be disposed outside the case and mounted on a side wall of the case. Wherein the oil pump 14 may interface with the first port 1101 and the second port to facilitate the flow of oil from the first port 1101 to the second port and into the oil circuit system 12. The oil cooler 13 may be mounted on the tank or at other locations, for example, the oil cooler 13 may be provided outside the tank and mounted on a side wall of the tank. The oil cooler 13 may be connected to the third port and the fourth port, and may exchange heat with oil from the third port to the fourth port, that is, exchange heat with oil from the first oil pipe 121 to the second oil pipe 122, so as to send the oil to the split oil pipe 123 through the second oil pipe 122 to split the oil to different areas of the power assembly 10.
In some embodiments of the present utility model, the second branch 1202 enters the motor chamber 101 through the bore 1601 of the main shaft 161 and the motor chamber 101 communicates with the transmission chamber 102 to allow oil within the motor chamber 101 to flow into the transmission chamber 102. The second branch 1202 may flow into the motor cavity 101 after passing through the inner hole 1601 of the main shaft 161, where the inner hole 1601 of the main shaft 161 may be configured to communicate with the motor cavity 101, or may be configured to guide the oil in the inner hole 1601 of the main shaft 161 into the motor cavity 101 through other structures, so that the first branch 1201 and the second branch 1202 converge in the motor cavity 101 and flow into the transmission cavity 102 after converging; the oil that merges into the transmission chamber 102 will enter the oil circuit system 12 under the driving action of the oil pump 14. Through oil circuit system 12, motor cavity 101, main shaft 161's hole 1601, derailleur cavity 102 etc. form the oil circuit circulation, realize the temperature regulation to power assembly 10 to and realize the temperature equilibrium of each part in power assembly 10, improved lubrication and radiating effect to power assembly 10.
In some embodiments of the present utility model, the oil pump 14 is mounted outside the sidewall of the case 11. The structure for installing the oil pump 14 is arranged on the side wall of the box body, so that the structure in the box body can be simplified, the power assembly 10 is simplified, the maintenance of the power assembly 10 is convenient, and in addition, the oil pump 14 can be matched with the first interface 1101 and the second interface to pump oil to the oil way system 12.
The first interface 1101 may be disposed in a bottom area of the tank, so as to facilitate pumping the oil pump 14 at the bottom of the tank to the oil path system 12, and then to an upper portion of the tank via the oil path system 12, so as to implement oil circulation in the tank.
Optionally, as shown in fig. 2, the powertrain 10 further includes a filter 18, the filter 18 being configured to filter oil, the filter 18 being mounted outside a sidewall of the housing 11, the filter 18 being disposed side-by-side with the oil pump 14. The filter 18 can filter the oil, improves the stable circulation of the oil, and the filter 18 is arranged on the outer side of the box body, so that the assembly and maintenance of the power assembly 10 can be facilitated, and the stability of the power assembly 10 is improved.
In addition to the foregoing embodiments, the housing 11 is mounted with a regulator valve 17, the regulator valve 17 being configured to regulate flow from the outlet of the oil circuit system 12 to the transmission chamber 102. By adjusting the adjusting valve 17, the first branch 1201 and the second branch 1202 of the oil path system 12 can be distributed, so that the oil of the first branch 1201 and the second branch 1202 can be conveniently adjusted and distributed, and the heat adjustment of the power assembly 10 and the lubrication effect of different areas can be improved.
Referring to fig. 6, a vehicle 100 according to an embodiment of the present utility model includes a powertrain 10 according to the foregoing. The power assembly 10 utilizes the oil cooler 13 to adjust the temperature of oil, and the oil subjected to heat exchange by the oil cooler 13 is split into the motor cavity 101 and the inner hole 1601 of the main shaft 161, so that the temperature adjusting effect of each part in the power assembly 10 can be optimized, and the heat balance in the power assembly 10 can be improved. The stability of the powertrain 10 can be improved, so that the failure rate of the vehicle 100 is reduced, the maintenance of the vehicle 100 is facilitated, the energy conservation and emission reduction of the vehicle 100 are realized, and the cruising ability is improved.
The powertrain 10 of the present utility model may be applied to an integrated intelligent rear drive assembly on a passenger vehicle, and the powertrain 10 may include a motor 15, a motor 15 controller, a transmission 16, a high voltage power distribution module (PDU for short), a power domain controller, an oil pump 14, and the like. The power domain controller consists of a bidirectional vehicle charger (Bi-OBC for short), a DC/DC converter (DC for short), a Vehicle Control Unit (VCU) and a Battery Manager (BMC). The powertrain 10 may be disposed below the rear trunk of the entire vehicle.
The motor 15 is located on the left side of the powertrain 10 and the transmission 16 is located on the right side of the powertrain 10. The front casing of the speed changer 16 and the motor 15 casing are combined into a casing, the front casing of the speed changer 16 and the motor 15 casing are combined to form a first casing 111, the rear casing of the speed changer 16 is a second casing 112, the first casing 111 and the second casing 112 are combined to form a casing, and the motor cavity 101 and the speed changer cavity 102 are arranged in the casing. The power assembly 10 is added with the space for installing the oil pump 14 and the filter 18, and the characteristics of an oil duct and the like; the second casing 112 is provided with a first mounting boss for mounting the oil cooler 13 and a second mounting boss for mounting the electromagnetic valve, and features such as an oil duct, a water channel and the like are added on the second casing 112. The oil cooling component (oil pump 14, oil cooler 13, regulating valve 17, etc.) added in the utility model is in an all-in-one form.
FIG. 1 is a schematic diagram of the flow of oil. The oil passes through a suction filter, filters out larger mechanical impurities, reaches an oil pump 14, then carries out rough filtration and fine filtration, filters out particles with the particle size less than 0.001mm, enters an oil cooler 13 through a first oil pipe 121, flows to a second oil pipe 122, and then enters a first shell 111 and a second shell 112 respectively through a shunt oil pipe 123, and goes from the first shell 111 to a stator of a motor 15 and then to a stator coil; from the second housing 112 first to the regulator valve 17, then to the bore 1601 of the main shaft 161, and finally to the stator coil; and finally flow together into the gearbox.
As shown in fig. 2 to 6, is the main cooling component of the lubrication system in the utility model. The oil pump 14 serves to raise the oil pressure and to ensure a certain oil amount, ensuring that the oil is continuously circulated inside the lubrication system. The oil way interface adopts end face sealing, if the heat load is large, a special radiator, namely an oil cooler 13, is arranged besides utilizing the oil pan to radiate the engine oil, so that the oil is continuously kept in the most favorable temperature range. The oil circuit system 12 is positioned with the first shell 111 by the aid of the positioning pin, and is in a radial sealing mode with the box hole, that is, one end of the first pipeline is inserted into the first interface 1101, and a sealing ring is arranged between the oil circuit system and the inner peripheral surface of the first interface 1101; one end of the second pipeline is inserted into the second connector, and a sealing ring is arranged between the second pipeline and the inner peripheral surface of the second connector; one end of the third pipeline is inserted into the third connector, and a sealing ring and the like are arranged between the third pipeline and the inner peripheral surface of the third connector. A regulating valve 17 (which may be a solenoid valve) is fixed to the case 11. The regulating valve 17 is fixed by adopting an inner hexagonal flower type pan head screw spring pad flat pad combination_M4X114 carbon steel_zinc-plated nickel, and the screw number is 2PCS. The regulating valve 17 is normally closed and is used for controlling the oil inlet amount of the rotor of the motor 15, and is mainly opened when the motor 15 is boosted and charged.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present utility model. In this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (14)

1. A powertrain (10), comprising:
A case (11), the case (11) having a motor cavity (101) and a transmission cavity (102), the motor cavity (101) houses a motor (15), the transmission cavity (102) houses a transmission (16), the transmission (16) includes a main shaft (161), and the main shaft (161) has an inner hole (1601) and is in driving connection with the motor (15);
the oil outlet of the oil circuit system (12) is divided into a first branch flow (1201) and a second branch flow (1202), the first branch flow (1201) is connected with the motor cavity (101), and the second branch flow (1202) is connected with an inner hole (1601) of the main shaft (161);
A regulating valve (17) is mounted on the housing (11), the regulating valve (17) being configured to regulate the flow from the outlet of the oil circuit system (12) to the transmission chamber (102).
2. The powertrain (10) of claim 1, wherein the oil circuit system (12) includes:
The oil distribution pipe (123) is provided with an oil inlet (1203), a first oil outlet (1204) and a second oil outlet (1205), a first branch flow (1201) is arranged between the oil inlet (1203) and the first oil outlet (1204), and a second branch flow (1202) is arranged between the oil inlet (1203) and the second oil outlet (1205).
3. The powertrain (10) of claim 2, wherein the split oil pipe (123) is of a split construction with the housing (11) and is embedded within a peripheral wall of the housing (11).
4. The powertrain (10) of claim 2, wherein the housing (11) has a first flow passage (1111) and a second flow passage (1121) in a wall thereof, the first flow passage (1111) communicating with the first oil outlet (1204) and the motor cavity (101), respectively, and the second flow passage (1121) communicating with the second oil outlet (1205) and an inner bore (1601) of the spindle (161), respectively.
5. The powertrain (10) of claim 4, wherein the housing (11) includes a first housing (111) and a second housing (112), the first housing (111) and the second housing (112) are in stacked engagement, the motor cavity (101) is located within the first housing (111), and the transmission cavity (102) is located between the first housing (111) and the second housing (112), the first fluid passage (1111) is located within a wall of the first housing (111), and the second fluid passage (1121) is located within a wall of the second housing (112).
6. The powertrain (10) of claim 5, wherein the split oil pipe (123) extends in a stacking direction and is configured at both ends as the first oil outlet (1204) and the second oil outlet (1205), respectively, the oil inlet (1203) being located on a peripheral wall of the split oil pipe.
7. The powertrain (10) of claim 2, wherein the oil circuit system (12) further includes:
The oil cooler (13), the oil cooler (13) is connected with an oil inlet (1203) of the shunt oil pipe (123) and exchanges heat with a medium in the oil circuit system (12);
And the oil pump (14) is connected with the oil circuit system (12) and drives the oil in the box shell (11) to enter the oil circuit system (12).
8. The powertrain (10) of claim 7, wherein the oil circuit system (12) includes:
The first oil pipe (121), one end of the first oil pipe (121) is connected with the oil pump (14), and the other end of the first oil pipe is connected with an oil inlet of the oil cooler (13);
And one end of the second oil pipe (122) is connected with an oil outlet of the oil cooler (13), and the other end of the second oil pipe (122) is connected with an oil inlet (1203) of the diverting oil pipe (123).
9. The powertrain (10) of claim 8, wherein the first oil tube (121) and the second oil tube (122) are each of a split construction with the housing (11), and the first oil tube (121) and the second oil tube (122) are disposed within the transmission cavity (102).
10. The powertrain (10) of claim 8, wherein the housing (11) has a first port (1101), a second port, a third port, and a fourth port, the oil pump (14) connects the first port (1101) and the second port, the oil cooler (13) connects the third port and the fourth port,
One end of the first oil pipe (121) is connected with the second interface, the other end of the first oil pipe is connected with the third interface, and one end of the second oil pipe (122) is connected with the fourth interface.
11. The powertrain (10) of claim 7, wherein the oil pump (14) is mounted outside a sidewall of the case (11);
And/or the oil cooler (13) is arranged outside the side wall of the box shell (11).
12. The powertrain (10) of claim 7, wherein the powertrain (10) further includes a filter (18), the filter (18) configured to filter oil, the filter (18) mounted outside a sidewall of the housing (11), the filter (18) disposed side-by-side with the oil pump (14).
13. The powertrain (10) of any of claims 1-12, wherein the second branch (1202) enters the motor cavity (101) through an inner bore (1601) of the main shaft (161), and the motor cavity (101) communicates with the transmission cavity (102) to cause oil within the motor cavity (101) to flow into the transmission cavity (102).
14. A vehicle (100) characterized by comprising a powertrain (10) according to any one of claims 1-13.
CN202321357237.6U 2023-05-31 2023-05-31 Powertrain and vehicle Active CN221162198U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321357237.6U CN221162198U (en) 2023-05-31 2023-05-31 Powertrain and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321357237.6U CN221162198U (en) 2023-05-31 2023-05-31 Powertrain and vehicle

Publications (1)

Publication Number Publication Date
CN221162198U true CN221162198U (en) 2024-06-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN221162198U (en)

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