CN211606273U - Oil-cooled motor - Google Patents
Oil-cooled motor Download PDFInfo
- Publication number
- CN211606273U CN211606273U CN202020128456.7U CN202020128456U CN211606273U CN 211606273 U CN211606273 U CN 211606273U CN 202020128456 U CN202020128456 U CN 202020128456U CN 211606273 U CN211606273 U CN 211606273U
- Authority
- CN
- China
- Prior art keywords
- oil
- stator
- housing
- distribution ring
- cooled
- 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.)
- Active
Links
Images
Abstract
The application discloses oil-cooled motor. The oil-cooled motor comprises a shell, a stator and an oil distribution ring arranged in the shell, wherein the oil distribution ring at least forms an accommodating space for cooling oil through the matching with the shell, and holes are formed in the oil distribution ring, so that the cooling oil accommodated in the accommodating space can flow through the stator through the holes. According to the utility model discloses an oil-cooled motor can cool off the stator effectively.
Description
Technical Field
The utility model relates to a motor field particularly, relates to an oil-cooled motor.
Background
The popularization of new energy automobiles drives the development direction of driving motors to high power, high rotating speed and light weight. As the motor speed and power increase, conventional water cooling schemes have been difficult to meet the motor cooling requirements, and therefore more and more manufacturers have begun to develop oil-cooled motors. The cooling mode that present oil-cooled motor mainly adopted is for seting up the oil groove on the stator, or uses a plurality of nozzles to spray oil to the stator to use the cooling oil to cool off whole stator.
SUMMERY OF THE UTILITY MODEL
The utility model provides an oil-cooled motor, it can cool off the stator effectively.
According to the utility model discloses an aspect provides oil-cooled machine, be in including casing, stator and setting distribution oil ring in the casing, distribution oil ring at least through with the cooperation of casing forms the accommodation space who is used for the coolant oil be equipped with the hole on the distribution oil ring, make and hold coolant oil in the accommodation space can pass through the hole flows through the stator.
According to the utility model discloses an aspect proposes oil-cooled motor, join in marriage the oil ring and distribute in the circumferencial direction perpendicular to the axis of stator in succession.
According to the utility model discloses an aspect proposes oil-cooled machine, the hole along the axis direction and/or the circumferencial direction of stator distribute evenly.
According to the utility model discloses an aspect proposes oil-cooled motor in the casing corresponding to accommodation space's outer circumference department be equipped with the oilhole and with the oil duct of oilhole UNICOM, the oilhole with the oil duct is used for supplying the cooling oil to accommodation space.
According to the utility model discloses an oil-cooled motor is proposed in aspect, join in marriage the oil ring and form the accommodation space that is used for the cooling oil through with the cooperation of casing, and join in marriage the oil ring and construct for the U-shaped in the cross section along the axis dissection of stator.
According to the utility model discloses an oil-cooled motor is proposed in aspect, join in marriage the oil ring through with the casing and the cooperation of stator forms the accommodation space that is used for the cooling oil, and join in marriage the oil ring and construct for L shape in the cross section along the axis of stator is cut.
According to the utility model discloses an aspect proposes oil-cooled machine, the stator is including setting up the stator winding in both sides join in marriage on the oil ring and be corresponding to stator winding's district section is equipped with the hole, makes and holds cooling oil in the accommodation space can pass through the hole flows through stator winding.
According to the utility model discloses an aspect proposed oil-cooled machine the left side and the right side of stator respectively are equipped with one and join in marriage the oil ring, these two join in marriage the oil ring respectively through the sealing washer with the casing and the stator is sealed.
According to the utility model discloses an aspect proposed oil-cooled machine, left distribution ring fix boss on the casing with between the left side of stator, the distribution ring on right side is fixed between the right side of stator and rear end cap, the rear end cap is used for sealing the right side of casing.
According to the utility model discloses an aspect provides the cold motor of oil, the cold motor of oil still includes the rotor, motor shaft and back motor shaft before the rotor can drive.
The beneficial effects of the utility model include: by means of the oil distribution ring arranged in the housing and at least the receiving space for cooling oil formed by cooperation with the housing, the cooling oil received in the receiving space can flow through the stator via the holes, so that the stator is cooled in a simple and effective manner.
Drawings
The disclosure of the present invention is explained with reference to the drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts unless otherwise specified. Wherein:
fig. 1 schematically shows an oil-cooled electric machine according to an embodiment of the present invention;
fig. 2 schematically shows a close-up view of the oil-cooled electric machine of fig. 1;
FIG. 3 schematically illustrates the cooling oil flow path of FIG. 2;
fig. 4 schematically shows an oil distribution ring in an oil-cooled motor according to an embodiment of the present invention.
Detailed Description
It is easily understood that, according to the technical solution of the present invention, a plurality of alternative structural modes and implementation modes can be proposed by those skilled in the art without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present invention, and should not be considered as limiting or restricting the technical solutions of the present invention in their entirety or in any other way.
The terms of orientation, up, down, left, right, front, rear, and the like referred to or may be referred to in the specification, are defined relative to the configuration shown in the drawings, and are relative concepts, so that the terms may be changed correspondingly according to the position and the using state of the system. Therefore, these and other directional terms should not be construed as limiting terms.
According to the utility model discloses an embodiment, oil-cooled machine includes casing, stator and sets up join in marriage the oil ring in the casing, join in marriage the oil ring at least through with the cooperation of casing forms the accommodation space that is used for the coolant oil join in marriage and be equipped with the hole on the oil ring, make and hold coolant oil in the accommodation space can pass through the hole flows through the stator.
In the oil-cooled motor according to the present application, by the oil distribution ring provided in the housing and at least the accommodation space for cooling oil formed by the fitting with the housing, the cooling oil accommodated in the accommodation space can flow through the stator through the holes, thereby cooling the stator in a simple and efficient manner.
According to an embodiment of the present invention, shown in conjunction with fig. 1 and 2, it can be seen that: the oil-cooled motor comprises a housing 4, a stator 7 and oil distribution rings 6,10 arranged in the housing 4. The oil distribution ring is made of plastic, for example. The oil distribution ring forms a receiving space 22 for cooling oil by cooperation with the housing 4 and the stator 7. In particular, the oil distribution ring encloses with the circumferential wall of the housing 4 and the end side of the stator 7 a receiving space 22 for cooling oil, in which high-pressure cooling oil can be filled.
The oil distribution ring is L-shaped in a cross section taken along the axis X of the stator 7. The position of the long side of the L-shaped oil distribution ring corresponds to the stator 7 to be cooled. Holes 21 are provided on the long sides of the L-shaped oil distribution ring, so that the cooling oil contained in the receiving space can flow through the stator 7 via the holes 21.
Specifically, the stator 7 includes stator windings 18 disposed on both sides, and holes 21 are provided on the oil distribution ring at sections corresponding to the stator windings 18, so that the cooling oil contained in the containing space can flow through the stator windings 18 through the holes 21. For example, the high-pressure cooling oil filled in the receiving space can be sprayed to the outer surfaces of the stator windings 18 disposed at both sides of the stator 7 through the holes 21.
In the case where the stator windings 18 are provided on both sides of the stator 7, the high-temperature region of the stator 7 is mainly concentrated on the stator windings 18 on both ends. In the embodiment, the stator windings at the two ends of the stator are cooled in a distributed mode, so that the efficiency can be optimized, the whole stator does not need to be cooled, the structure of the cooling mechanism is simplified, and the structural size is reduced.
The oil distribution rings are distributed continuously in a circumferential direction perpendicular to the axis X of the stator 7. In the embodiment shown in fig. 4, the oil distribution rings are distributed continuously in a circumferential direction perpendicular to the axis X of the stator 7 and are constructed in one piece. It will be understood by those skilled in the art that the oil distribution rings may also be constructed in multiple pieces and that these oil distribution rings are distributed next to each other in a circumferential direction perpendicular to the axis X of the stator 7, so that it is also possible to completely cover the circumferential direction perpendicular to the axis X of the stator 7.
The holes 21 are uniformly distributed along the axis X direction and/or the circumferential direction of the stator 7 so that the cooling oil filled in the receiving space can be uniformly sprayed to the stator 7 or the stator windings 18 disposed at both sides of the stator 7 through the holes 21.
Referring to fig. 2, an oil hole 19 and an oil passage 20 communicating with the oil hole 19 are provided in the housing 4 at an outer circumference corresponding to the receiving space. Cooling oil is supplied to the accommodating space through the oil passage 20 and the oil holes 19, for example, by means of an oil pump, thereby forming high-pressure cooling oil in the accommodating space. High-pressure cooling oil is injected to the stator 7 or the stator windings 18 provided on both sides of the stator 7 through the holes 21, and then the cooling oil is re-flowed through the oil pump by the return system, thereby completing oil circuit circulation for the cooling oil.
In the exemplary embodiment shown in fig. 1, an oil distribution ring is provided on each of the left and right sides of the stator 7, which oil distribution rings are each sealed off from the housing 4 and from the stator 7 by sealing rings (see fig. 2 or 3). The left oil distribution ring 6 is fixed between the boss on the housing 4 and the left side of the stator 7, the right oil distribution ring 10 is fixed between the right side of the stator 7 and a rear end cover 11, and the rear end cover 11 is used for closing the right side of the housing 4. The radial sealing force required by the sealing of the oil distribution ring is provided by the compression of the rear end cover 11, and the axial sealing force is provided by the matching and tensioning of the size of the oil distribution ring and the sealing ring.
In the embodiment according to fig. 1, cooling oil is supplied by means of an oil pump through an oil passage 20 and an oil hole 19 respectively into the accommodation space formed by the left-side oil distribution ring 6 and by the right-side oil distribution ring 10, i.e., the accommodation space on the left side formed by the left-side oil distribution ring 6 and the accommodation space on the right side formed by the right-side oil distribution ring 10 are arranged in parallel on an oil path. Of course, the left-side accommodation space formed by the left-side oil distribution ring 6 and the right-side accommodation space formed by the right-side oil distribution ring 10 may be arranged in series on the oil path as necessary.
The oil-cooled motor further includes: a rotor 8, which rotor 8 can carry the front motor shaft 1 and the rear motor shaft 9 and is supported in the housing 4 by a first bearing 3 and a second bearing 12, respectively; a first clamp spring 2 and a first bearing retainer ring 5 which are matched with the first bearing; a rotating speed sensor 13, a wave spring 14 and a second clamp spring 15 which are arranged on the right side of the rear motor shaft 9. On the outside of the housing there are also two caps 16,17 for sealing the openings formed by machining the oil holes 19.
In an embodiment not shown, the oil distribution ring may also form a receiving space for cooling oil only by fitting with the housing, and be configured in a U-shape in a cross section taken along the axis of the stator. Specifically, two parallel sides of the U-shaped oil distribution ring abut against the circumferential wall of the housing (or two parallel sides of the U-shaped oil distribution ring and the circumferential wall of the housing are sealed by a seal ring), and the position of the bottom side of the U-shaped oil distribution ring connecting the two parallel sides corresponds to the stator to be cooled or the stator windings disposed on both sides of the stator. In this way, a receiving space for cooling oil is enclosed by the oil distribution ring and the circumferential wall of the housing, in which receiving space high-pressure cooling oil can be filled. Furthermore, the method is simple. Holes are formed in the bottom edge, so that cooling oil contained in the containing space can flow through the stator through the holes or stator windings arranged on two sides of the stator.
The technical scope of the present application is not limited to the contents in the above description, and those skilled in the art can make various changes and modifications to the above embodiments without departing from the technical spirit of the present application, and these changes and modifications should fall within the protective scope of the present application.
Claims (10)
1. An oil-cooled electric machine, characterized in that it comprises a housing (4), a stator (7) and an oil distribution ring arranged in the housing (4), which forms a receiving space (22) for cooling oil at least by cooperation with the housing (4), on which oil distribution ring there are provided holes (21) so that cooling oil received in the receiving space can flow through the stator (7) through the holes (21).
2. An oil-cooled machine according to claim 1, characterized in that the oil distribution rings are distributed continuously in a circumferential direction perpendicular to the axis (X) of the stator (7).
3. An oil-cooled machine according to claim 2, characterized in that the holes (21) are evenly distributed along the axis (X) direction and/or the circumferential direction of the stator (7).
4. The oil-cooled motor according to claim 1, wherein an oil hole (19) and an oil passage (20) communicating with the oil hole (19) are provided in the housing (4) at an outer circumference corresponding to the accommodating space, the oil hole (19) and the oil passage (20) being for supplying cooling oil to the accommodating space.
5. An oil-cooled machine according to claim 1, characterized in that the oil distribution ring forms a receiving space for cooling oil by cooperation with the housing (4) and is configured in a U-shape in a cross-section taken along the axis (X) of the stator (7).
6. An oil-cooled machine according to claim 1, characterized in that the oil distribution ring forms a receiving space for cooling oil by cooperation with the housing (4) and the stator (7), and is configured in an L-shape in a cross section taken along an axis (X) of the stator (7).
7. An oil-cooled machine according to claim 6, characterized in that the stator (7) comprises stator windings (18) arranged on both sides, holes (21) being provided on the oil distribution ring in sections corresponding to the stator windings (18), so that cooling oil contained in the receiving space can flow through the stator windings (18) through the holes (21).
8. An oil-cooled machine according to claim 6, characterized in that one oil distribution ring is provided on each of the left and right sides of the stator (7), which rings are sealed with the housing (4) and the stator (7) by sealing rings, respectively.
9. An oil-cooled machine according to claim 8, characterized in that the oil distribution ring (6) on the left is fixed between a boss on the housing (4) and the left side of the stator (7), and the oil distribution ring (10) on the right is fixed between the right side of the stator (7) and a rear end cover (11), the rear end cover (11) closing the right side of the housing (4).
10. An oil cooled machine according to claim 1, characterized in that it further comprises a rotor (8), which rotor (8) is capable of driving a front motor shaft (1) and a rear motor shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020128456.7U CN211606273U (en) | 2020-01-20 | 2020-01-20 | Oil-cooled motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020128456.7U CN211606273U (en) | 2020-01-20 | 2020-01-20 | Oil-cooled motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211606273U true CN211606273U (en) | 2020-09-29 |
Family
ID=72580063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020128456.7U Active CN211606273U (en) | 2020-01-20 | 2020-01-20 | Oil-cooled motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211606273U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113783342A (en) * | 2021-09-15 | 2021-12-10 | 臻驱科技（上海）有限公司 | Oil-cooled electric driving system for testing and testing method thereof |
| CN113809864A (en) * | 2021-09-15 | 2021-12-17 | 臻驱科技（上海）有限公司 | Oil cold and hot electric drive system of test usefulness |
| EP3993226A1 (en) * | 2020-10-29 | 2022-05-04 | Valeo Siemens eAutomotive Germany GmbH | Coolant distribution ring for electric motor |
| WO2022134746A1 (en) * | 2020-12-25 | 2022-06-30 | 奇瑞汽车股份有限公司 | Oil-cooled motor cooling system, and vehicle |
| FR3125178A1 (en) | 2021-07-12 | 2023-01-13 | Nidec Psa Emotors | Rotating electric machine |
-
2020
- 2020-01-20 CN CN202020128456.7U patent/CN211606273U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3993226A1 (en) * | 2020-10-29 | 2022-05-04 | Valeo Siemens eAutomotive Germany GmbH | Coolant distribution ring for electric motor |
| US20220140669A1 (en) * | 2020-10-29 | 2022-05-05 | Valeo Siemens Eautomotive Germany Gmbh | Distribution ring for electric motor |
| WO2022134746A1 (en) * | 2020-12-25 | 2022-06-30 | 奇瑞汽车股份有限公司 | Oil-cooled motor cooling system, and vehicle |
| FR3125178A1 (en) | 2021-07-12 | 2023-01-13 | Nidec Psa Emotors | Rotating electric machine |
| WO2023285753A1 (en) | 2021-07-12 | 2023-01-19 | Nidec Psa Emotors | Rotating electrical machine |
| CN113783342A (en) * | 2021-09-15 | 2021-12-10 | 臻驱科技（上海）有限公司 | Oil-cooled electric driving system for testing and testing method thereof |
| CN113809864A (en) * | 2021-09-15 | 2021-12-17 | 臻驱科技（上海）有限公司 | Oil cold and hot electric drive system of test usefulness |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211606273U (en) | Oil-cooled motor | |
| CN102751818B (en) | External cover-cooled rotary electric machine and casing used therein | |
| CN103038983B (en) | Electromotor cooling system and method | |
| US9755482B2 (en) | Electric machine with liquid cooling and method of assembling | |
| CN106169836B (en) | Motor with cooling structure | |
| US8659190B2 (en) | Electric machine cooling system and method | |
| CN113675966B (en) | Stator assembly, motor and motor cooling system | |
| CN102893501A (en) | Sleeve member for an electric machine | |
| JP2009195082A (en) | Cooling structure of stator | |
| US20120013206A1 (en) | Cooling System and Method for an Electric Machine Module | |
| KR20210102522A (en) | Stator and moter having the same | |
| CN107240985B (en) | Rotating electric machine | |
| CN111725939A (en) | Cooling system, stator module and axial magnetic field motor | |
| CA2417405A1 (en) | Electrical machine having centrally disposed stator | |
| CN111725909A (en) | Stator module and axial magnetic field motor | |
| KR101755492B1 (en) | Stator assembly structure for drive motor of hybrid electric vehicle | |
| MX2012011571A (en) | Electric machine cooling system and method. | |
| CN216086348U (en) | Integrated motor device and operation equipment | |
| KR20130123317A (en) | Electric machine module cooling system and method | |
| CN220043119U (en) | Axial flux motor, electric device and vehicle | |
| EP4018536A1 (en) | Electric machine with integrated dam assembly | |
| KR20100011738A (en) | Stator assembly structure for drive motor of hybrid electric vehicle | |
| CN220440497U (en) | Cooling structure, casing, motor and vehicle of stator | |
| JP2019068705A (en) | Cooling structure of stator core and rotary electric machine | |
| CN220043118U (en) | Axial flux motor, electric device and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |