CN113525066B - Hybrid drive system's casing and vehicle - Google Patents
Hybrid drive system's casing and vehicle Download PDFInfo
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- CN113525066B CN113525066B CN202110800282.3A CN202110800282A CN113525066B CN 113525066 B CN113525066 B CN 113525066B CN 202110800282 A CN202110800282 A CN 202110800282A CN 113525066 B CN113525066 B CN 113525066B
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- oil
- gear
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- motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
- B60K6/405—Housings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/442—Series-parallel switching type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R17/00—Arrangements or adaptations of lubricating systems or devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
The invention discloses a shell of a hybrid power type driving system, relates to the technical field of hybrid power driving, and solves the technical problem of hidden trouble of insufficient active lubrication caused by vehicle steering or inclination in the related art. Including left shell, rear end cap and right shell, between right shell and the rear end cap are located to the left shell, form the gear chamber of holding gear shaft system between right shell and the left shell, form the motor chamber of holding driving motor and generator between rear end cap and the left shell, wherein, be equipped with the oil gallery on the left shell, the oil gallery both ends communicate with motor chamber and gear chamber respectively to with the leading-in gear intracavity of lubricating oil in motor chamber, the oil gallery is greater than 20 with the horizontal contained angle of horizontal plane. Through the arrangement angle of the oil return grooves, lubricating oil in a motor cavity of the whole vehicle in an extreme state such as a right-turn acceleration of 0.36G or a 20-degree left slope can be smoothly guided to a bearing part in a gear cavity along the oil return grooves, and sufficient lubrication is guaranteed.
Description
Technical Field
The invention relates to the technical field of hybrid power driving, in particular to a shell of a hybrid power type driving system and a vehicle.
Background
For a hybrid electric drive system with a drive motor, a generator and a gear box, a plurality of parts such as a motor stator and a motor rotor, a bearing, an oil seal, a gear and the like need to be lubricated and cooled, and compared with a traditional gear box, the lubricating and cooling mode which can meet the requirement only by means of splash lubrication has higher difficulty. Particularly, the shafting is arranged side by side instead of a planetary gear type, and the oil is difficult to be guided to a high gear shafting by only stirring and splashing by gears.
When a combination mode of active lubrication and splash lubrication is adopted, the hidden danger of insufficient lubrication caused by oil return defects due to active lubrication is urgently needed to be improved because the conditions of steering and inclining exist when a vehicle runs.
Disclosure of Invention
The application provides a hybrid drive system's casing has solved among the relevant art because the vehicle turns to or the slope condition leads to having the technical problem of the hidden danger of initiative lubrication deficiency.
The application provides a hybrid drive system's casing, including left shell, rear end cap and right shell, form the gear chamber of holding gear shaft system between right side shell and the left shell, form the motor chamber of holding driving motor and generator between rear end cap and the left shell, the left shell is located between right shell and the rear end cap, wherein, be equipped with the oil gallery on the left shell, the oil gallery both ends communicate with motor chamber and gear chamber respectively, in order to the leading-in gear intracavity of lubricating oil with the motor chamber, the oil gallery is greater than 20 with the horizontal contained angle of horizontal plane.
Optionally, the oil return groove comprises a differential oil return groove, the differential oil return groove is arranged in the left shell, one end of the differential oil return groove is communicated to a differential left bearing hole of the left shell, and a transverse included angle between the differential oil return groove and a horizontal plane is greater than 20 degrees, so that the left bearing or the oil seal of the differential is guaranteed to be subjected to oil return lubrication under the first-limit state of the whole vehicle on a right-turning acceleration of 0.36G or a 20-degree left slope.
Optionally, the oil return groove comprises a clutch oil return groove, the clutch oil return groove is arranged on the left shell, one end of the clutch oil return groove is communicated with a clutch left bearing hole of the left shell, and a transverse included angle between the clutch oil return groove and a horizontal plane is greater than 20 degrees, so that the left bearing or oil seal of the clutch is lubricated in an oil return mode when the whole vehicle is in an extreme state on a left slope with the right rotation acceleration of 0.36G or 20 degrees.
Optionally, the groove bottom surface of the oil return groove is in a planar arrangement, and one end of the oil return groove close to the motor cavity is higher than one end of the oil return groove close to the gear cavity.
Optionally, the bottom of the rear end cover is provided with an inward protrusion to reduce the space at the bottom of the motor cavity.
Optionally, a driving motor and a generator are arranged in the motor cavity, the generator is arranged lower than the driving motor, and the protrusions are arranged at intervals along the outer edge profile of the generator.
Optionally, a driving motor and a generator are arranged in the motor cavity, an intermediate shaft, a differential, a clutch and an engine shaft are arranged in the gear cavity, and the driving motor, the intermediate shaft, the differential, the clutch, the engine and the generator are sequentially in gear engagement connection.
Optionally, a cooling pump cavity and a clutch pump cavity are arranged at the bottom of the left shell, the cooling pump cavity is used for installing a cooling oil pump so as to guide lubricating oil in the gear cavity to the motor cavity and the gear cavity after being guided to the cooling module, and the clutch pump cavity is used for accommodating the clutch pump so as to control the locking and the disconnection of the clutch;
the left shell is provided with an oil suction duct of the cooling oil pump, an output oil duct of the cooling oil pump, an oil suction duct of the clutch pump and an output oil duct from the clutch pump to the clutch.
Optionally, the left shell and the right shell are provided with splash lubrication oil ducts, each splash lubrication oil duct is formed by a triangular rib, the triangular rib is arranged above the side, which rotates upwards, of the gear of the differential when the vehicle moves forward, so that the oil stirred by the differential is divided into three strands, the three strands of oil are guided to a bearing seat of the differential, one strand of oil is guided to a gear of the intermediate shaft, and the other strand of oil rushes to the top of the gear cavity, so that the oil is guided to a lubrication part below through a protruding rib at the top of the gear cavity.
A vehicle comprises the shell of the hybrid power type driving system.
The beneficial effect of this application is as follows: this casing is by left shell, rear end cap and right side shell are constituteed, be formed with motor chamber and gear chamber, be used for hybrid drive system, the gear chamber is used for each shaft gear transmission pipe, the motor chamber is used for holding hybrid drive system's motor, including driving motor and generator, left side shell is equipped with the oil gallery, in order to carry the lubricated oil back to the gear chamber in the motor chamber to motor cooling lubrication in-process, improve lubrication efficiency, the horizontal contained angle of oil gallery and horizontal plane is greater than 20, thereby when slope or the operating mode of turning about the gearbox examination is examined 36% slope or 0.36G acceleration at most, through the arrangement angle setting to the oil gallery, ensure that the lubricating oil in motor chamber can smoothly lead to the bearing position in the gear chamber along the oil gallery under extreme state such as the equal-limit state on the right turn acceleration 0.36G or 20 left side slopes, ensure abundant lubrication.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly introduced, and it is apparent that the drawings in the description are only some embodiments of the present invention.
1-1 is a first schematic illustration of a mechanism of a hybrid drive system provided herein;
FIGS. 1-2 are second schematic diagrams of the mechanism of the hybrid drive system provided herein
FIG. 2-1 is a first schematic illustration of a housing of the hybrid drive system provided herein;
2-2 are second schematic illustrations of a housing of a hybrid drive system provided herein;
2-3 are third schematic illustrations of a housing of a hybrid drive system provided herein;
2-4 are fourth schematic illustrations of a housing of a hybrid drive system provided herein;
2-5 are fifth schematic illustrations of a housing of a hybrid drive system provided herein;
FIG. 3 is a schematic view of the left housing of FIG. 2;
FIG. 4 is a schematic structural view of an oil return groove communicating a motor cavity and a gear cavity in FIG. 3;
fig. 5 is a schematic view illustrating an oil storing state at the bottom of a motor cavity in a housing according to the present application.
The attached drawings are marked as follows:
1-left shell, 2-right shell, 3-rear end cap, 6-gear cavity, 8-motor cavity, 101-drive motor shaft, 102-intermediate gear shaft, 103-differential shaft, 104-clutch shaft, 105-engine shaft, 106-generator shaft, 108-drive motor, 109-generator, 110-cooling oil pump, 111-clutch oil pump, 201-intermediate shaft right bearing hole, 202-differential right bearing hole, 203-clutch right bearing hole, 205-engine shaft right bearing hole, 207-drive motor right bearing hole, 208-intermediate shaft left bearing hole, 209-differential left bearing hole, 210-clutch left bearing hole, 211-engine shaft left bearing hole, 212-generator right bearing hole, 215-cooling pump cavity, 216-clutch pump cavity, 217-drive motor left bearing hole, 218-generator left bearing hole, 226-differential oil return groove, 231-clutch oil return groove, 239-protrusion, 244-triangular rib, 247-protrusion rib, 251-horizontal plane.
Detailed Description
The embodiment of the application solves the technical problem of the hidden trouble of insufficient active lubrication caused by the steering or inclining condition of the vehicle in the related technology by providing the shell of the hybrid power type driving system.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
the utility model provides a hybrid drive system's casing, including left shell, rear end cap and right shell, form the gear chamber of holding gear shaft system between right shell and the left shell, form the motor chamber of holding driving motor and generator between rear end cap and the left shell, the left shell is located between right shell and the rear end cap, wherein, be equipped with the oil gallery on the left shell, the oil gallery both ends communicate with motor chamber and gear chamber respectively, in order to the leading-in gear intracavity of lubricating oil with the motor chamber, the oil gallery is greater than 20 with the horizontal contained angle of horizontal plane.
In order to better understand the technical scheme, the technical scheme is described in detail in the following with reference to the attached drawings of the specification and specific embodiments.
As shown in fig. 1-1 and 1-2, the hybrid drive system includes a drive motor 108, a generator 109, a differential (differential shaft 103), and a clutch (clutch shaft 104), wherein a drive motor shaft 101 is connected to the differential shaft 103 via an intermediate shaft 102, and an engine shaft 105 is connected to a generator shaft 106 and the clutch shaft 104, respectively. The electric drive system is connected side by side according to the sequence of a drive motor shaft 101, an intermediate gear shaft 102, a differential shaft 103, a clutch shaft 104, an engine shaft 105 and a generator shaft 106, a power transmission route of the drive motor shaft 101, the intermediate shaft 102 and the differential shaft 103 realizes that a motor directly drives a vehicle, a power transmission path of the engine shaft 105 and the generator shaft 106 realizes power generation, a clutch is positioned between the two power transmission paths, the clutch is locked and disconnected, and the conversion of a series mode or a parallel mode is realized.
As shown in fig. 2-1 to 2-5, the housing includes a left housing 1, a right housing 2, and a rear cover 3. The left housing 1 and the right housing 2 are combined by a flange surface 219 to form a gear chamber 6 (the gear chamber 6 is schematically shown in fig. 4) for accommodating a gear shaft system such as the intermediate shaft 102, the differential shaft 103, the clutch shaft 104, and the engine shaft 105. The left shell 1 is provided with a differential left bearing hole 209, an intermediate shaft left bearing hole 208, a driving motor right bearing hole 207, a clutch left bearing hole 210, an engine shaft left bearing hole 211 and an engine right bearing hole 212. The gear chamber 6 is provided with the space that holds the oil pump filter, and the oil pump filter is used for filtration before fluid gets into external cooling module. The right shell 2 is provided with an intermediate shaft right bearing hole 201, a differential right bearing hole 202, a clutch right bearing hole 203 and an engine shaft right bearing hole 205. The rear end cover 3 is provided with a driving motor left bearing hole 217 and a generator left bearing hole 218.
It should be noted that, the left side of the left shell is not limited by the orientation, but the name is used for description, and similarly, the right shell and the right and rear of the rear end cover are not limited by the orientation.
As shown in fig. 1-1 to 2-5, the left housing 1 and the rear end cover 3 are combined by the flange surface 220 to form a motor cavity 8 (the motor cavity 8 is schematically shown in fig. 4) for accommodating the driving motor 108 and the generator 109.
As shown in fig. 1-1 to 2-5, the left housing is provided, between the gear chamber 6 and the motor chamber 8, with a cooling pump chamber 215 that accommodates the cooling oil pump 110 and its motor, a clutch pump chamber 216 that accommodates the clutch oil pump 111 and its motor. The left shell is provided with an oil suction duct of the cooling oil pump, an oil output duct of the cooling oil pump, an oil suction duct of the clutch pump and an oil output duct from the clutch pump to the clutch, and the oil suction duct, the oil output duct and the oil output duct are respectively used for oil inlet and oil outlet of the cooling oil pump 110 and oil inlet and oil outlet of the clutch pump 111. Wherein, through cooling oil pump 110 with gear intracavity lubricating oil lead to the cooling module, lead to motor chamber 8 and gear chamber 6 after cooling, clutch pump 111 is used for controlling the locking and the disconnection of clutch.
As shown in fig. 3, the left housing 1 is provided with an oil return groove and an oil return hole for introducing oil of the motor chamber 8 into the gear chamber 6. In fig. 3, dotted lines indicate outer contours of the shafting gears. The left bearing seat of the differential of the left shell 1 is provided with an oil guide groove 224 and a hole 225 penetrating through the bearing seat in a gear cavity and used for guiding oil stirred by a gear to enter a bearing and an oil seal; a differential oil return groove 226 is arranged between the gear cavity 6 and the motor cavity 8 near a left bearing seat of the differential of the left shell 1 to guide oil in the motor cavity to enter a differential left bearing hole 209; ribs 227 surrounding the differential gear are arranged on one side, upwards stirring oil, of the vehicle backward differential gear of the left shell; an oil guide groove 228 is formed beside a bearing seat of a left bearing hole 208 of the middle shaft of the left shell, an arc rib 229 is arranged to surround a gear of the middle shaft, oil stirred by the gear is guided to the bearing seat along the arc rib 229 through the oil guide groove 228 (similarly acting, the oil stirred by the gear of the engine passes through the oil guide groove 232 along the arc rib 233 and then passes through the oil guide groove 232), an oil return hole 230 for communicating a gear cavity 6 with a motor cavity 8 is formed in the bottom of the bearing seat, and oil in the motor cavity 8 can enter the bearing seat of the left bearing hole 208 of the middle shaft through the oil return hole 230; the clutch bearing seat of the left shell is provided with a clutch oil return groove 231 for communicating the gear cavity 6 with the motor cavity 8, and oil in the motor cavity 8 and oil in the gear cavity 6 are guided to enter the clutch bearing seat.
As shown in fig. 3, a triangular rib 244 is arranged on the left housing 1 at the side obliquely above the upward rotating side of the differential gear when the vehicle is moving forward, so that oil stirred up along the inner wall of the housing of the differential is divided into three strands, one strand flows to a bearing seat of the differential along an oil guide groove 224, the other strand rushes to a gear part of a middle shaft along the direction 246, and the other strand rushes to the upper part of the transmission along the wall 245 of the housing.
With continued reference to fig. 3, the left housing 1 has raised ribs 247 at the upper portion of the gear chamber 6 to block and direct the oil stirred up from the bottom of the transmission to devices that collect oil or lubricate other parts such as gears, shafts, etc. The lubricating oil stirred up by the gear is divided by the structures such as the triangular ribs 244 and the like and flows to different positions respectively, so that the structure which is higher in position or difficult to reach in a splash lubrication mode is effectively lubricated, and the design is ingenious.
Similarly, there is a rib 248 to block oil, and the oil stirred up by the gear of the engine shaft 105 is flushed along the oil guiding groove 233 of the engine shaft to the upper part of the transmission, and is guided to the device for lubricating or collecting oil for the gear and shaft below through the rib 248 of the engine shaft.
It is to be noted that, as described above with respect to splash lubrication of the left shell, a splash lubrication oil passage may be specifically formed. The right shell is also provided with a splash lubrication oil channel to carry out splash lubrication on a right bearing seat and the like of the intermediate shaft.
As shown in fig. 4, the horizontal angle 250 between the oil return groove and the horizontal plane 251 of the left housing 1 at the upper part of the differential and the bearing seat of the clutch shaft is more than 20 degrees. By taking the differential oil return groove 226 as an example, the differential oil return groove 226 is disposed on the left housing 1, one end of the differential oil return groove 226 is conducted to the differential left bearing hole 209 of the left housing 1, and a transverse included angle between the differential oil return groove 226 and a horizontal plane 251 is greater than 20 °, so that the bearing or oil seal of the differential shaft 102 can be ensured to be lubricated in the extreme states of the vehicle, such as a right-turn acceleration of 0.36G or a 20-degree left slope, and the like. Specifically, for example, in the case of a 20 ° left incline, the horizontal plane 251 and the transverse included angle 250 of the differential oil return groove 226 are greater than 20 °, so that the differential oil return groove 226 can still incline toward the gear cavity 6, and the oil 252 flowing down from the motor cavity forms the oil 253 flowing back to the gear cavity along the oil return groove as shown in fig. 4, and can smoothly flow to the bearing portion 254.
It should be noted that the horizontal plane 251 is at a transverse angle 250 greater than 20 ° to the differential return 226, as shown in fig. 4, where the horizontal plane 251 refers to the horizontal plane of the vehicle when the housing is horizontally disposed.
Similarly, the clutch oil return groove 231 is arranged on the left shell 1, one end of the clutch oil return groove 231 is communicated to the clutch left bearing hole 210 of the left shell 1, and the transverse included angle between the clutch oil return groove 231 and the horizontal plane 251 is greater than 20 degrees, so that the left bearing or oil seal of the clutch is lubricated in an oil return mode under the condition that the vehicle is in an extreme state such as a right-turning acceleration of 0.36G or a 20-degree left slope.
Arrangement of above-mentioned differential mechanism oil gallery 226, clutch oil gallery 231 all belongs to the oil gallery, and the oil gallery both ends communicate with motor chamber 8 and gear chamber 6 respectively to in leading-in gear chamber 6 with the lubricating oil in motor chamber 8, the oil gallery is greater than 20 with the horizontal contained angle of horizontal plane. The oil return groove may be provided in the intermediate shaft, in addition to the differential oil return groove 226 and the clutch oil return groove 231.
Optionally, as shown in fig. 4, the bottom surface of the oil return groove is arranged in a plane, and one end of the oil return groove close to the motor cavity is higher than one end of the oil return groove close to the gear cavity, so that the differential, the clutch bearing and the oil seal can be lubricated under various working conditions including working conditions of forward movement, left rotation, right rotation, inclination and the like of the vehicle. In more possibilities, the bottom surface of the oil return groove comprises an arc-shaped arrangement or the like.
As shown in fig. 5, an inward protrusion 239 is arranged at the bottom of the rear end cover 3, so that in the base that the motor cavity 8 is formed by the rear end cover 3 and the left shell 1, the protrusion 239 forms an inward concave effect at the lowest part of the motor cavity 8, and the space at the bottom of the motor cavity is reduced to prevent oil from accumulating at the bottom of the motor cavity 8 when the whole vehicle tilts right or turns left. As shown in fig. 5, if there is no protrusion 239, the oil that cannot be used by the oil pump chamber 257 due to accumulation in the bottom of the motor chamber 8 is the sum of the volumes of the space 255 and the space 256, and when the protrusion 239 is provided, the oil in the space 255 flows to the gear chamber to be used, so as to improve the utilization rate of the lubricating oil.
Alternatively, as shown in fig. 1-1 through 2-5, the generator 109 in the motor cavity 8 is lower than the drive motor 108, and the protrusion 239 may be primarily disposed with respect to the generator 109. As shown in fig. 5, the protrusions have a profile similar to the outer edge profile of the generator, with the protrusions being spaced along the outer edge profile of the generator.
This embodiment still provides a vehicle, including foretell hybrid drive system's casing, specifically is hybrid drive vehicle, is favorable to splashing the lubrication to gear intracavity eminence to and the oil gallery of guarantee whole car steering, slope, each operating mode of going straight is fully lubricated, still sets up the utilization ratio that improves lubricating oil through the arch of rear end cap bottom.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A housing for a hybrid drive system, comprising:
a left shell;
the right shell and the left shell form a gear cavity for accommodating a gear shaft system;
the rear end cover and the left shell form a motor cavity for accommodating a driving motor and a generator; the left shell is arranged between the right shell and the rear end cover;
the left shell is provided with an oil return groove, two ends of the oil return groove are communicated with the motor cavity and the gear cavity respectively so as to guide lubricating oil in the motor cavity into the gear cavity, and a transverse included angle between the oil return groove and a horizontal plane is larger than 20 degrees.
2. The hybrid drive system of claim 1, wherein the oil-return grooves comprise differential oil-return grooves, the differential oil-return grooves are disposed on the left housing, one end of the differential oil-return grooves is connected to a left differential bearing hole of the left housing, and a transverse included angle between the differential oil-return grooves and the horizontal plane is greater than 20 ° to ensure oil-return lubrication of a left bearing or an oil seal of the differential in an extreme state such as a right-turn acceleration of 0.36G or a 20 ° left slope.
3. The hybrid drive system of claim 1, wherein the oil-return groove comprises a clutch oil-return groove, the clutch oil-return groove is disposed on the left housing, one end of the clutch oil-return groove is connected to a clutch left bearing hole of the left housing, and a transverse included angle between the clutch oil-return groove and the horizontal plane is greater than 20 ° so as to ensure that the left bearing or oil seal of the clutch is lubricated by oil-return when the entire vehicle is in an extreme state such as a right-turn acceleration of 0.36G or a 20 ° left incline.
4. A hybrid drive system housing as set forth in any of claims 1-3, wherein said oil gallery has a floor surface, and wherein an end of said oil gallery adjacent said motor cavity is located higher than an end of said oil gallery adjacent said gear cavity.
5. A hybrid drive system housing as claimed in any one of claims 1 to 3, wherein the bottom of the rear end cap is provided with an inwardly directed projection to reduce the space at the bottom of the motor cavity.
6. A hybrid drive system housing as set forth in claim 5, wherein said motor cavity houses a drive motor and a generator disposed below said drive motor, said protrusions being spaced along an outer peripheral contour of said generator.
7. The hybrid drive system of claim 1, wherein the motor chamber houses a drive motor and a generator, the gear chamber houses an intermediate shaft, a differential, a clutch, and an engine shaft, and the drive motor, the intermediate shaft, the differential, the clutch, the engine, and the generator are sequentially connected in gear engagement.
8. The hybrid drive system housing of claim 7, wherein the bottom of the left casing is provided with a cooling pump cavity and a clutch pump cavity, the cooling pump cavity is used for installing a cooling oil pump to guide the lubricating oil in the gear cavity to the cooling module and then to the motor cavity and the gear cavity, and the clutch pump cavity is used for accommodating a clutch pump to control the locking and the disconnection of the clutch;
the left shell is provided with an oil suction duct of the cooling oil pump, an output oil duct of the cooling oil pump, an oil suction duct of the clutch pump and an output oil duct of the clutch pump to the clutch.
9. The hybrid drive system casing of claim 7, wherein the left and right casings are provided with splash lubrication oil passages, the splash lubrication oil passages are formed by triangular ribs, the triangular ribs are arranged obliquely above one side of the differential gear which rotates upwards when the vehicle advances, so that the oil stirred up by the differential gear is divided into three strands, including a strand of bearing seat leading to the differential gear, a strand of gear leading to the intermediate shaft, and a strand of oil which impacts the top of the gear cavity so as to be guided to the part to be lubricated below through the raised ribs at the top of the gear cavity.
10. A vehicle characterized by comprising a casing of the hybrid drive system of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| WO2011111478A1 (en) * | 2010-03-09 | 2011-09-15 | アイシン・エィ・ダブリュ株式会社 | Hybrid drive device |
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