CN108400670B - Motor reducer integrated housing with cooling water channel - Google Patents
Motor reducer integrated housing with cooling water channel Download PDFInfo
- Publication number
- CN108400670B CN108400670B CN201810402642.2A CN201810402642A CN108400670B CN 108400670 B CN108400670 B CN 108400670B CN 201810402642 A CN201810402642 A CN 201810402642A CN 108400670 B CN108400670 B CN 108400670B
- Authority
- CN
- China
- Prior art keywords
- motor
- cooling
- water channel
- shell
- end cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 49
- 239000000498 cooling water Substances 0.000 title claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 59
- 238000005266 casting Methods 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000007493 shaping process Methods 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- 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
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a motor reducer integrated shell with a cooling water channel, which comprises a motor shell body, wherein the motor shell body is integrated with the reducer shell body; the motor is characterized in that a cooling circulation water channel is arranged in the shell of the speed reducer shell and the motor shell, and the cooling circulation water channel is used for cooling the stator core, the motor bearing seat and the front end cover end face which are arranged in the motor shell. This integrated casing of motor reducer adopts integrative casting shaping, and cooling circulation water course accessible low pressure casting forms inside cavity, cooling circulation water course can be used to cooling motor stator core, reduction gear casing and motor bearing frame, has improved the cooling efficiency of whole cooling system, has reduced electric drive system heat loss, and has improved the life of bearing.
Description
Technical Field
The invention relates to the field of motor reducer shell structure design, in particular to a motor reducer integrated shell with a cooling water channel.
Background
At present, the integrated design of a motor, a speed reducer and PEB becomes the main stream of the existing electric drive system design, and the space utilization rate of the system can be effectively improved. The motor shell is designed to enable the shell of the motor and the shell of the speed reducer to be cast integrally, the cooling circulating water channel can form an internal cavity through low-pressure casting, meanwhile, the motor stator iron core is cooled, the speed reducer box body and the motor bearing seat are cooled, the inlet of the circulating water channel is directly connected with the outlet of the controller water channel, and the outlet of the circulating water channel is arranged on the speed reducer shell. However, the existing motor housing has the following disadvantages: 1) The existing connection mode of the motor and the speed reducer is usually assembled by bolts, so that the space of the whole bridge assembly is increased, and the assembly difficulty and the use amount of parts are increased; 2) The existing motor water channel circulation system is used for independently cooling the stator core by wrapping the motor stator core, and the cooling efficiency of the cooling system is low; 3) The speed reducer is directly connected with the motor shell, and the temperature rise of the motor or the speed reducer at different rotating speeds is different, or the temperature rise at one side with high temperature is increased. Therefore, there is a need for structural improvement in the cooling water passage of the motor housing to solve the above-mentioned problems.
Disclosure of Invention
The invention aims at: the shell consists of a motor shell and a speed reducer shell, the motor is formed by casting at low pressure, the motor is provided with a water inlet, water is fed into the motor to cool the stator core successively, the speed reducer is provided with a bearing chamber, and the bearing chamber is provided with a water outlet for outflow, so that the motor speed reducer integrated shell is cooled in a circulating and reciprocating mode.
The technical scheme of the invention is as follows: the utility model provides a motor reducer integrated housing with cooling water course, includes the motor housing of reduction gear housing and reduction gear housing body, be provided with a cooling circulation water course in the casing of reduction gear housing and motor housing, cooling circulation water course is used for the stator core, motor bearing frame, front end housing terminal surface and the reduction gear housing of cooling installation in the motor housing.
As a preferable technical scheme, the cooling circulation water channel is an internal cavity which is formed by a water channel inlet, a motor cooling part, an end cover, a bearing cooling part and a water channel outlet and is communicated with each other; the water channel inlet is arranged on the motor shell, the motor cooling part is spirally arranged in the motor shell, the end cover and the bearing cooling part are arranged at the joint interface of the speed reducer shell and the motor shell, and the water channel outlet is arranged on the speed reducer shell.
As a preferable technical scheme, the end cover and the bearing cooling part comprise an end cover cooling water channel and a bearing cooling water channel; the end cover cooling water channel is in a half fan shape, is arranged in parallel with the front end cover end face of the motor shell and is used for cooling the front end cover end face and the speed reducer shell; the bearing cooling water channel is semicircular, is perpendicular to the end cover cooling water channel, is arranged on the outer circumferential outer side of the motor bearing seat of the motor shell, and is used for cooling the motor bearing seat.
As the preferable technical scheme, the speed reducer shell and the motor shell are integrally formed by low-pressure casting, and the cooling circulating water channel is an inner cavity formed by low-pressure casting.
The invention has the advantages that:
1) The motor and the reducer shell are integrally designed, so that the axial dimension of the whole bridge assembly is reduced, the assembly concentricity of axially assembled parts is easier to control in an integrated design, and the consumption of motor parts is reduced;
2) The cooling water channel of the motor can successively cool the motor stator iron core, the speed reducer shell and the motor bearing chamber, so that the cooling efficiency of the whole cooling system is improved, and the heat loss of the electric drive system is reduced;
3) The motor and the intermediate water channel of the speed reducer not only can play a role in cooling the shell, but also can prevent the speed reducer and the motor from serving as heat sources to diffuse heat to each other at various rotating speeds;
4) And the cooling structure of the bearing at the high rotating speed of the motor is increased, and the service life of the bearing is prolonged.
Drawings
The invention is further described below with reference to the accompanying drawings and examples:
FIG. 1 is a schematic view of the motor-reducer integrated housing with cooling water channels of the present invention;
FIG. 2 is a schematic perspective view of a waterway within an integrated housing of the present invention;
wherein: 1. a speed reducer housing; 2. a motor housing; 3. a cooling circulation water channel;
31. a waterway inlet; 32. a motor cooling portion; 33. a bearing cooling portion; 34. a waterway outlet;
33-1, end cover cooling water channels; 33-2, bearing cooling water channels;
4. a motor bearing seat; 5. and fixing the stator core.
Detailed Description
Examples:
As shown in fig. 1-2, a motor-reducer integrated housing with a cooling water channel comprises a reducer housing 1 and a motor housing 2 integrated with the reducer housing 1; a cooling circulation water channel 3 is arranged in the shells of the speed reducer shell 1 and the motor shell 2, the speed reducer shell 1 and the motor shell 2 are integrally formed by low-pressure casting, and the cooling circulation water channel 3 is an internal cavity formed by low-pressure casting; a stator core is fixedly arranged in the motor shell 2, and a motor bearing seat 4 for installing a bearing is also arranged in the motor shell 2, wherein a mark 5 in the figure 1 is a stator core fixing position; the cooling circulation water channel 3 is used for cooling the stator core, the motor bearing seat, the front end cover end face and the speed reducer shell 1 which are arranged in the motor shell 2.
As shown in fig. 2, for further explanation of the above technical solution, the cooling circulation water channel 3 is an internal cavity formed by a water channel inlet 31, a motor cooling part 32, an end cover, a bearing cooling part 33 and a water channel outlet 34; the water channel inlet 31 is arranged on the motor shell 2, the motor cooling part 32 is spirally arranged in the motor shell 2, the end cover and the bearing cooling part 33 are arranged at the joint interface of the speed reducer shell 1 and the motor shell 2, and the water channel outlet 34 is arranged on the speed reducer shell 1; wherein the end cap and bearing cooling portion 33 includes an end cap cooling water channel 33-1 and a bearing cooling water channel 33-2; the end cover cooling water channel 33-1 is in a half fan shape, is arranged in parallel with the front end cover end face of the motor shell and is used for cooling the front end cover end face and the speed reducer shell; the bearing cooling water channel 33-2 is in a semicircular shape, is perpendicular to the end cover cooling water channel 33-1, and is arranged on the outer circumferential outer side of the motor bearing seat of the motor housing for cooling the motor bearing seat.
The invention relates to a motor reducer integrated shell with a cooling water channel, which is formed by integrally casting, wherein a cooling circulating water channel is arranged in the shell, cooling water enters from a water channel inlet, firstly cools a stator core, secondly cools the end faces of the reducer shell and a motor front end cover, and then cools a bearing chamber, finally flows out from a water channel outlet, and cooling water flows in from the water channel inlet again after external heat dissipation, so that the motor shell is cooled circularly. The cooling circulating water channel is a casting sand core, and is discharged from sand discharge holes at the periphery of the shell after casting; the cooling circulation water channel improves the cooling efficiency of the motor, blocks the relative heat diffusion of the motor and the speed reducer, and solves the heat dissipation problem of the bearing when the motor rotates at a high speed.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations which can be accomplished by persons skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the appended claims.
Claims (2)
1. The utility model provides a motor reducer integrated housing with cooling water course, includes motor housing (2) that reduction gear housing (1) and reduction gear housing (1) are integrative, its characterized in that: a cooling circulation water channel (3) is arranged in the shells of the speed reducer shell (1) and the motor shell (2), and the cooling circulation water channel (3) is used for cooling a stator iron core, a motor bearing seat, a front end cover end face and the speed reducer shell (1) which are arranged in the motor shell (2);
the cooling circulation water channel (3) is an internal cavity which is formed by a water channel inlet (31), a motor cooling part (32), an end cover, a bearing cooling part (33) and a water channel outlet (34) and is communicated with each other; the water channel inlet (31) is arranged on the motor shell (2), the motor cooling part (32) is spirally arranged in the motor shell (2), the end cover and the bearing cooling part (33) are arranged at the connecting interface of the speed reducer shell (1) and the motor shell (2), and the water channel outlet (34) is arranged on the speed reducer shell (1);
The end cover and bearing cooling part (33) comprises an end cover cooling water channel (33-1) and a bearing cooling water channel (33-2); the end cover cooling water channel (33-1) is in a half fan shape, is arranged in parallel with the front end cover end face of the motor shell and is used for cooling the front end cover end face and the speed reducer shell; the bearing cooling water channel (33-2) is in a semicircular shape, is perpendicular to the end cover cooling water channel (33-1), is arranged on the outer circumferential outer side of the motor bearing seat of the motor shell, and is used for cooling the motor bearing seat.
2. A motor-reducer integrated housing with a cooling water channel as set forth in claim 1, wherein: the speed reducer housing (1) and the motor housing (2) are integrally formed by low-pressure casting, and the cooling circulation water channel (3) is an inner cavity formed by low-pressure casting.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402642.2A CN108400670B (en) | 2018-04-28 | 2018-04-28 | Motor reducer integrated housing with cooling water channel |
| PCT/CN2018/123771 WO2019205694A1 (en) | 2018-04-28 | 2018-12-26 | Motor speed reducer integrated housing having cooling water channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402642.2A CN108400670B (en) | 2018-04-28 | 2018-04-28 | Motor reducer integrated housing with cooling water channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108400670A CN108400670A (en) | 2018-08-14 |
| CN108400670B true CN108400670B (en) | 2024-05-03 |
Family
ID=63100818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810402642.2A Active CN108400670B (en) | 2018-04-28 | 2018-04-28 | Motor reducer integrated housing with cooling water channel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108400670B (en) |
| WO (1) | WO2019205694A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400670B (en) * | 2018-04-28 | 2024-05-03 | 合肥巨一动力系统有限公司 | Motor reducer integrated housing with cooling water channel |
| CN109617310A (en) * | 2018-10-23 | 2019-04-12 | 展欣（宁波）新能源科技有限公司 | A kind of hub motor |
| CN111224501B (en) * | 2018-11-23 | 2021-10-22 | 比亚迪股份有限公司 | Electric assembly |
| CN112594357B (en) * | 2020-12-29 | 2023-03-21 | 中克骆瑞新能源科技有限公司 | Oil cooling deep integrated electric drive system |
| CN113078774B (en) * | 2021-02-24 | 2022-11-08 | 爱驰汽车（上海）有限公司 | Cooling structure and driving device |
| CN116094234B (en) * | 2023-04-10 | 2023-06-16 | 常州永瀚电机有限公司 | Energy-saving direct-current brushless centrifugal fan for building ventilation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205417150U (en) * | 2015-11-10 | 2016-08-03 | 大陆汽车投资（上海）有限公司 | Take integrated drive arrangement of motor, dc -to -ac converter and derailleur of cooling body |
| CN208272773U (en) * | 2018-04-28 | 2018-12-21 | 合肥巨一动力系统有限公司 | A kind of motor reducer integrated housing with cooling water channel |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728903B (en) * | 2008-10-31 | 2011-11-16 | 比亚迪股份有限公司 | Motor and transmission mechanism thereof |
| US8169110B2 (en) * | 2009-10-09 | 2012-05-01 | GM Global Technology Operations LLC | Oil cooled motor/generator for an automotive powertrain |
| DE102010054028B4 (en) * | 2010-12-09 | 2020-11-05 | Sew-Eurodrive Gmbh & Co Kg | Cooling arrangement and gear motor |
| KR20140029685A (en) * | 2012-08-29 | 2014-03-11 | 현대모비스 주식회사 | Oil cooling type motor |
| DE102012112379A1 (en) * | 2012-12-17 | 2014-06-18 | Linde Material Handling Gmbh | Drive axle of mobile working machine e.g. industrial truck, has engine compartment and transmission chamber that are located adjacent to one another in axle housing of drive axle and are fluidly connected to each other through opening |
| DE102012112377A1 (en) * | 2012-12-17 | 2014-06-18 | Linde Material Handling Gmbh | Electrical drive axle i.e. two-motor axle, for mobile working machine i.e. industrial lorry, has liquid circuit whose components are attached in drive axle, where circuit is provided with circulation pump, heat exchange unit and filter |
| JP2015231275A (en) * | 2014-06-04 | 2015-12-21 | Ntn株式会社 | In-wheel motor drive device |
| CN106100205A (en) * | 2016-08-08 | 2016-11-09 | 武汉理工大学 | A kind of motor lubricating and cooling |
| CN108400670B (en) * | 2018-04-28 | 2024-05-03 | 合肥巨一动力系统有限公司 | Motor reducer integrated housing with cooling water channel |
-
2018
- 2018-04-28 CN CN201810402642.2A patent/CN108400670B/en active Active
- 2018-12-26 WO PCT/CN2018/123771 patent/WO2019205694A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205417150U (en) * | 2015-11-10 | 2016-08-03 | 大陆汽车投资（上海）有限公司 | Take integrated drive arrangement of motor, dc -to -ac converter and derailleur of cooling body |
| CN208272773U (en) * | 2018-04-28 | 2018-12-21 | 合肥巨一动力系统有限公司 | A kind of motor reducer integrated housing with cooling water channel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108400670A (en) | 2018-08-14 |
| WO2019205694A1 (en) | 2019-10-31 |
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