CN100382415C - Method and apparatus for cooling a hybrid transmission electric motor - Google Patents

Method and apparatus for cooling a hybrid transmission electric motor Download PDF

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Publication number
CN100382415C
CN100382415C CNB2005100560451A CN200510056045A CN100382415C CN 100382415 C CN100382415 C CN 100382415C CN B2005100560451 A CNB2005100560451 A CN B2005100560451A CN 200510056045 A CN200510056045 A CN 200510056045A CN 100382415 C CN100382415 C CN 100382415C
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motor
module housing
module
annular chamber
cooling agent
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CNB2005100560451A
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CN1738158A (en
Inventor
J·A·拉什科夫斯基
E·L·凯泽
A·P·塔塔
K·K·金西
J·E·莫厄特
W·S·里德
M·D·福斯特
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Motors Liquidation Co
General Motors LLC
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Motors Liquidation Co
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  • Hybrid Electric Vehicles (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

A hybrid transmission including two electric motors and a plurality of planetary gear sets operatively connectable to the motors and to an engine is provided. Novel motor features are provided including structure adapted to improve reliability and to facilitate assembly. More precisely, a method is provided for locating and installing the components of a motor, including a rotor and a stator, within a covered housing to form a motor module. A plurality of rotor bearings and a position/speed sensor are also preferably added to the motor module. After the motor module is assembled, the motor may be tested and thereafter the motor module can be installed into a hybrid transmission as a single component utilizing conventional transmission assembly methods.

Description

The method and apparatus that is used for cooling and mixing formula drive motor
Technical field
The present invention relates to a kind of method and apparatus that is used for cooling and mixing formula drive motor.
Background technology
Motor can produce heat at work in hybrid dynamo-electric gear.If suitably row is not diffusing for heat, then will damage the Performance And Reliability of this motor.
Summary of the invention
The present invention relates to be used for the method and apparatus of the electro-motor of cooling and mixing formula transmission device.The roughly motor shell of cylindricality is provided, and it has first and second composition surfaces.In installation, first and second composition surfaces of motor shell engage with gear mechanism housing, so that limit an annular chamber betwixt.The pressurization the entry port of cooling agent in gear mechanism housing be arranged in this annular chamber, and with after a plurality of coolant holes in the motor shell be applied on the stator winding of electro-motor.The cooling agent of this pressurization is preferably power transmitting fluids, so that do not need extra coolant storage.
According to the preferred embodiments of the present invention, first composition surface and second composition surface include a plurality of O shape circles that are suitable for sealing this annular chamber.Leakage fluid dram is arranged in the motor shell, so that prevent the gathering that cooling agent is too much.This leakage fluid dram is arranged on the height of the stable state liquid level that is suitable for remaining on the cooling agent of assembling in the motor shell, so that electro-motor is cooled off by the cooling agent of pressurized coolant that applies at first and the gathering in housing.Case lid is preferably and is attached on this motor shell, so that the cooling agent that encapsulates this electro-motor and keep assembling.
With reference to accompanying drawing and in conjunction with to the detailed description of preferred forms of the present invention, can understand above feature, advantage and aspect with other of the present invention better.
Description of drawings
Fig. 1 is the schematic cross-section of hybrid dynamo-electric gear;
Fig. 2 is the schematic cross-section of the front portion of transmission device shown in Figure 1;
Fig. 3 is the schematic cross-section at the rear portion of transmission device shown in Figure 1;
Fig. 4 is the schematic perspective view of housing, and wherein the lid of motor module is connected with the electric coupler component that uses in transmission device shown in Figure 1; With
Fig. 5 is the schematic cross-section of front portion shown in Figure 1.
Embodiment
Similar in the accompanying drawings Reference numeral is represented similar parts, and the sectional view of Fig. 1 shows the first half of transmission device 10.The latter half of (unshowned) transmission device is arranged on the opposition side of central axis 12.The first and second electro- motor modules 14,16 are arranged in the transmission device 10 around central axis 12 respectively.Main shaft 20 longitudinally is provided with and can be around central axis 12 rotation.A plurality of interior axles for example axle 22 are provided with around main shaft 20 with one heart, and can similarly center on central axis 12 rotations.Power shaft 24 is arranged on the anterior of main shaft 20 and in operation power is passed to transmission device 10 from (unshowned) engine.Be included in a plurality of clutches in the transmission device 10 one or more joints (promptly as shown in the figure, first, second, third and four clutches 26,28,30,32) respectively with first, second, third planetary gearsets 34,36,38 in one or more interconnection so that give (unshowned) output block with transmission of power with different ratios.Those of ordinary skill in the art should be appreciated that each planetary gearsets comprises sun gear parts, ring gear component and planetary gear load bearing component.The 5th clutch is also referred to as lock-up clutch 42 and makes moment of torsion isolator 44 and on every side structural detail locking in operation, and direct connection the between engine and the transmission device is provided.
With reference to Fig. 2 and 3, the first and second motor modules 14,16 is respectively assembly independently.Each motor module 14,16 comprises motor, and it is respectively 46A, 46B.Each motor 46A, 46B comprise rotor 48A, 48B and stator 50A, 50B respectively.Stator 50A comprises stator winding 79A and 81A, and similarly stator 50B comprises stator winding 79B and 81B.Those of ordinary skill in the art should be appreciated that stator winding 79A, 81A, 79B and 81B produce heat at work, so they should be cooled, so that guarantee optimum performance and the reliability of motor 46A, 46B.
Motor 46A, 46B are preferably and are encapsulated among cylindrical part 52A and the 52B, and it is by roughly module housing 54A, 54B and module housing lid 56A, the 56B of cylindricality constitute.Each housing 54A, 54B comprise open end 58A, 58B, and it helps the insertion of motor, also comprise blind end 60A, 60B.As described in detail below, after motor 46A, 46B were inserted in the housing, module housing lid 56A, 56B were attached to respectively on open end 58A, the 58B of module housing 54A, 54B.According to preferred embodiment, module housing 54A, 54B are configured to by shaped steel, and case lid 56A, 56B are made of stamped steel, yet, those of ordinary skill in the art should be appreciated that this housing and case lid can be constituted and/or made according to other known fabrication processes by other material.
Referring now to Fig. 3, housing 54B limits outer surface 62B and inner surface 64B.Outer surface 62B is roughly roughly in alignment with the jut 66B near the open end 58B of housing 54B.The first composition surface 68B that is suitable for engaging with gear mechanism housing 72B is positioned near the blind end 60B of housing 54B, and the second composition surface 70B that is suitable for engaging with gear mechanism housing 72B is positioned on the jut 66B of outer surface 62B.The part between first and second composition surfaces of outer surface 62B does not contact with gear mechanism housing 72B, and ground discussed in more detail below partly limits annular chamber 74B.In order to make housing 54B by preferred moulding process, essential is that composition surface 68B, 70B are processed, and is convenient to module housing 54B suitably is assemblied in the tolerance that necessary hope has in the transmission device 10 so that keep.Advantageously, this embodiment provides accurate cooperation the between this housing 54B and the transmission device 10, and does not need to process the required expense of whole outer surface 62B.
Gear mechanism housing 72B comprises the surperficial 76B that limits motor cavity 78B, and this motor cavity is suitable for holding this module housing 54B.Surface, chamber 76B is preferably the gradient that comprises about 3 degree, so that help the installation of module housing 54B.In installation process, the first and second composition surface 68B, the 70B of module housing 54B and chamber surface 76B engages, so that the zone formation annular chamber 74B between the outer surface 62B that axially is limited to the zone between the first and second composition surface 68B, the 70B and radially is limited to module housing 54B and the surperficial 76B in the chamber of gear mechanism housing 72B.The entry port 80B of cooling agent 100 (as shown in Figure 5) in gear mechanism housing 72B is incorporated among the annular chamber 74B.Cooling agent 100 is preferably and pressurizes, so that help it to be applied on the motor 46B; Yet cooling agent 100 can otherwise apply by gravity.Cooling agent 100 is preferably the fluid of conduct from the cooling system of (unshowned) transmission device, so that cool off other transmission component; Yet, should be appreciated that can also contemplate other fluid also can be used for this purposes.Application from the fluid of transmission cooling system is favourable, and this is because it does not need extra parts to be used to store, pressurize and transmit the fluid source that separates.
The first and second composition surface 68B, the 70B of module housing 54B all are limited with O shape ring recess 82, and O shape circle 84 is arranged on wherein.O shape circle 84 is suitable for sealing annular chamber 74B, and prevents the leakage of (as shown in Figure 5) cooling agent 100.O shape circle 84 also helps module 16 guiding before the attaching and centering in gear mechanism housing 72B.The architectural feature of the motor module 14 shown in Fig. 1 and 2 is similar to the architectural feature of above-mentioned motor module 16.
With reference to Fig. 2 and 4, a plurality of coolant holes 90 that are communicated with annular chamber 74A are around the periphery setting of module housing 54A.With certain flow rate ejection, this flow rate is limited by size, shape and the quantity of amount of pressure among the annular chamber 74A and coolant hole 90 cooling agent 100 of (as shown in Figure 5) pressurization from coolant hole 90 in annular chamber 74A.According to preferred embodiment, a plurality of first coolant holes 90 are arranged to aim at stator winding 79A around the periphery of module housing 54A, and a plurality of second coolant holes 90 are arranged to aim at stator winding 81A around the periphery of module housing 54A, and are last so that cooling motor 46A so that the cooling agent 100 of pressurization is applied directly to stator winding 79A, 81A.Yet, should be appreciated that to contemplate hole configuration alternately.Similar cooling structure can be arranged on the motor module shown in Figure 3 16.
With reference to Figure 4 and 5, assemble through the cooling agent 100 that coolant hole 90 is incorporated among the housing 54A, reach leakage fluid dram 102 up to its liquid level.Therefore, the stable state liquid level of cooling agent 100 in this module housing can be controlled by the position of leakage fluid dram 102A.Should be appreciated that in addition this stator winding 79A, 81A also can be cooled off by the cooling agent 100 that is stored in the gathering among the housing 54A except being cooled off stator winding 79A, the 81A by the cooling agent 100 that applies through coolant hole 90.
Case lid 56A is preferably that the open end 58A that is directed to module housing 54A by bolt 106 goes up and bolt is connected thereto, so case lid 56A is dismountable, if for example essential maintenance motor 46A, it is detachable.Yet, should be appreciated that case lid 56A can be attached on the module housing 54A in any conventional manner.
Case lid 56A is preferably and comprises a plurality of installation protuberances 104, and it is radially spaced around this case lid, so that motor module 14 bolts are connected on the gear mechanism housing 72A.Installation protuberance 104 provides maneuverable attaching mode and helps and absorbs the stator moment of torsion by gear mechanism housing 72A.Fig. 1 has similar architectural feature with second motor module 16 shown in Figure 3.
Although described preferred forms of the present invention in detail, those of ordinary skill in the art should be appreciated that and can carry out various modification to implementing structure of the present invention and execution mode without departing from the scope of the invention.

Claims (17)

1. hybrid transmission, it comprises:
Gear mechanism housing, it has the surface that limits motor cavity;
Be arranged on the motor module in this drive motor chamber, this motor module comprises:
The module housing of cylindricality, it limits outer surface and inner surface, and this module housing has open end and the blind end opposite with this open end, and this module housing comprises a plurality of coolant holes that are formed on wherein;
Be arranged on the motor sub-assembly in this module housing, this motor sub-assembly comprises:
Stator; With
Rotor by this stator surrounding;
This outer surface of this module housing and this gear mechanism housing surface limit annular chamber betwixt, and this annular chamber is communicated with described a plurality of coolant hole fluids; And
Wherein, the cooling agent in this annular chamber is distributed on this stator through described a plurality of coolant holes, so that cool off this motor sub-assembly.
2. hybrid transmission as claimed in claim 1 is characterized in that, this outer surface of this module housing comprises first composition surface and second composition surface.
3. hybrid transmission as claimed in claim 1 is characterized in that, this outer surface of this module housing comprises a plurality of O shape circles that are suitable for sealing this annular chamber.
4. hybrid transmission as claimed in claim 1 is characterized in that this module housing comprises leakage fluid dram, and it is configured to is convenient to discharge the cooling agent that accumulates in this module housing.
5. hybrid transmission as claimed in claim 1 is characterized in that, this motor module comprises the case lid on this open end that is attached to this module housing.
6. hybrid transmission as claimed in claim 1 is characterized in that this gear mechanism housing comprises entry port, and this cooling agent is incorporated in this annular chamber through this entry port.
7. hybrid transmission as claimed in claim 1 is characterized in that this cooling agent comprises the fluid from transmission cooling system.
8. hybrid transmission, it comprises:
Gear mechanism housing, it has the surface that limits motor cavity;
Be arranged on the motor module in this drive motor chamber, this motor module comprises:
The module housing of cylindricality, it limits outer surface and inner surface, and this module housing has open end and the blind end opposite with this open end, and this module housing comprises a plurality of coolant holes;
Be arranged on the motor sub-assembly in this module housing, this motor sub-assembly comprises:
Stator with a plurality of stator winding, this stator winding is aimed at in described a plurality of coolant holes at least one; With
Rotor by this stator surrounding; With
Be attached to the case lid on this open end of this module housing;
This outer surface of this module housing and this gear mechanism housing surface limit annular chamber betwixt, and this annular chamber is communicated with described a plurality of coolant hole fluids; And
Wherein, the cooling agent of the pressurization in this annular chamber is distributed on this stator winding through described a plurality of coolant holes, so that cool off this motor sub-assembly.
9. hybrid transmission as claimed in claim 8 is characterized in that, this outer surface of this module housing comprises first composition surface and second composition surface.
10. hybrid transmission as claimed in claim 8 is characterized in that, this outer surface of this module housing comprises a plurality of O shape circles that are suitable for sealing this annular chamber.
11. hybrid transmission as claimed in claim 8 is characterized in that, this module housing comprises leakage fluid dram, and it is configured to is convenient to discharge the cooling agent that accumulates in this module housing.
12. hybrid transmission as claimed in claim 8 is characterized in that, this gear mechanism housing comprises entry port, and the cooling agent of this pressurization is incorporated in this annular chamber through this entry port.
13. hybrid transmission as claimed in claim 8 is characterized in that, this cooling agent comprises the fluid from transmission cooling system.
14. a method that is used for the electro-motor of cooling and mixing formula transmission device, this method comprises:
Motor module is provided, and this motor module comprises:
The module housing of cylindricality, it limits outer surface and inner surface, and this module housing has open end and the blind end opposite with this open end, and this module housing comprises a plurality of coolant holes;
Be arranged on the motor sub-assembly in this module housing, this motor sub-assembly comprises:
With at least one stator aimed in described a plurality of coolant holes; With
Rotor by this stator surrounding; With
Be attached to the case lid on this open end of this module housing;
This motor module is installed in the motor cavity of gear mechanism housing, so that between the outer surface of this module housing and this gear mechanism housing, limit annular chamber; With
Cooling agent is incorporated in this annular chamber, so that this cooling agent is distributed on this stator through described a plurality of coolant holes, so that cool off this motor sub-assembly.
15. method as claimed in claim 14 is characterized in that, also comprises this annular chamber of sealing.
16. method as claimed in claim 14 is characterized in that, also is included in cooling agent and is incorporated in the annular chamber before to this cooling agent pressurization.
17. method as claimed in claim 14 is characterized in that, also comprises the too much cooling agent that discharge is assembled in this module housing.
CNB2005100560451A 2004-03-22 2005-03-22 Method and apparatus for cooling a hybrid transmission electric motor Active CN100382415C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US55527004P 2004-03-22 2004-03-22
US60/555270 2004-03-22
US11/060083 2005-02-17

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CN1738158A CN1738158A (en) 2006-02-22
CN100382415C true CN100382415C (en) 2008-04-16

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CNB200510059152XA Expired - Fee Related CN100491146C (en) 2004-03-22 2005-03-22 Wiring connection module for hybrid electro-mechanical transmission
CN2005100560447A Expired - Fee Related CN1738155B (en) 2004-03-22 2005-03-22 Hybrid transmission motor module with integral wire connector
CNB2005100560451A Active CN100382415C (en) 2004-03-22 2005-03-22 Method and apparatus for cooling a hybrid transmission electric motor

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CNB200510059152XA Expired - Fee Related CN100491146C (en) 2004-03-22 2005-03-22 Wiring connection module for hybrid electro-mechanical transmission
CN2005100560447A Expired - Fee Related CN1738155B (en) 2004-03-22 2005-03-22 Hybrid transmission motor module with integral wire connector

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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4059276B2 (en) * 2006-03-24 2008-03-12 トヨタ自動車株式会社 Power transmission device and assembly method thereof
CN101577455B (en) * 2008-05-05 2013-07-31 德昌电机(深圳)有限公司 A motor for a multi-stage circuit and a conductive wire connector thereof
US8115351B2 (en) * 2009-05-29 2012-02-14 GM Global Technology Operations LLC Hybrid transmission high voltage connector and terminal block cooling system and method
US8424415B2 (en) * 2009-10-07 2013-04-23 GM Global Technology Operations LLC Non-rotating clutch and method of installing same
US8659191B2 (en) * 2010-05-18 2014-02-25 Remy Technologies, Llc Sleeve member for an electric machine
US8508085B2 (en) * 2010-10-04 2013-08-13 Remy Technologies, Llc Internal cooling of stator assembly in an electric machine
US20130002067A1 (en) * 2011-06-30 2013-01-03 Bradfield Michael D Electric Machine Module Cooling System and Method
DE102012022290A1 (en) * 2012-11-14 2014-05-15 Borgwarner Inc. Torque transmission device for drive train for motor vehicle, has input side, output side, coupling unit for selectively transmitting torque between input side and output side and electrical machine
JP5978954B2 (en) * 2012-11-26 2016-08-24 三菱自動車工業株式会社 Rotating electrical machine equipment
DE102013018720A1 (en) 2013-11-08 2015-05-13 Man Truck & Bus Ag Crankshaft starter generator and housing for a crankshaft starter generator
JP7057826B2 (en) * 2017-10-10 2022-04-20 ジョンソン コントロールズ テクノロジー カンパニー Sealed motor cooling system

Citations (3)

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Publication number Priority date Publication date Assignee Title
JPH0776229A (en) * 1993-06-16 1995-03-20 Aqueous Res:Kk Lubricating device for hybrid vehicle
US6373155B1 (en) * 1999-09-06 2002-04-16 Suzuki Motor Corporation Propulsion unit of vehicle
US6397968B2 (en) * 2000-03-22 2002-06-04 Jatco Transtechnology Ltd. Transmission unit for hybrid vehicle

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Publication number Priority date Publication date Assignee Title
JP3666727B2 (en) * 1999-07-05 2005-06-29 本田技研工業株式会社 Hybrid vehicle drive device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0776229A (en) * 1993-06-16 1995-03-20 Aqueous Res:Kk Lubricating device for hybrid vehicle
US6373155B1 (en) * 1999-09-06 2002-04-16 Suzuki Motor Corporation Propulsion unit of vehicle
US6397968B2 (en) * 2000-03-22 2002-06-04 Jatco Transtechnology Ltd. Transmission unit for hybrid vehicle

Also Published As

Publication number Publication date
CN1738155A (en) 2006-02-22
CN100491146C (en) 2009-05-27
CN1738155B (en) 2012-05-23
CN1738158A (en) 2006-02-22
CN1807138A (en) 2006-07-26

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