CN220653067U - Motor suitable for rotor and stator cooling - Google Patents
Motor suitable for rotor and stator cooling Download PDFInfo
- Publication number
- CN220653067U CN220653067U CN202322352964.XU CN202322352964U CN220653067U CN 220653067 U CN220653067 U CN 220653067U CN 202322352964 U CN202322352964 U CN 202322352964U CN 220653067 U CN220653067 U CN 220653067U
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- China
- Prior art keywords
- rotor
- magnetic
- plate
- guide plate
- cooling
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Links
- 238000001816 cooling Methods 0.000 title claims abstract description 48
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 43
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- 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
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model relates to the field of motor rotors, in particular to a motor suitable for cooling a rotor and a stator. The utility model provides a motor suitable for cooling a rotor and a stator, which comprises: the motor comprises a motor shell and a hollow shaft penetrating through the motor shell along the axial direction, wherein a stator assembly with copper wires is arranged in the motor shell; a flow channel is arranged between the hollow shaft and the copper wire; when cooling oil is injected into the hollow shaft, the cooling oil enters the flow channel and is sprayed onto the copper wire. Through setting up oil guide board, first magnetic guide board, special shape magnetic guide board and second magnetic guide board and offer the oil guide hole to form the flow path between hollow shaft and the copper line, so that the cooling oil is to the high magnetic density of rotor cooling. Two oil guide grooves are formed in the special magnetic plate, the first magnetic guide plate and the second magnetic guide plate, so that cooling oil cools the magnet.
Description
Technical Field
The utility model relates to the field of motor rotors, in particular to a motor suitable for cooling a rotor and a stator.
Background
With the increasing performance requirements of the market on motor products, the high-performance products have higher requirements on materials and temperature, the high temperature can bring about the improvement of material cost and the reduction of product performance, the patent is mainly used for solving the temperature-related problems in the electric drive operation process, the main factors of temperature increase are loss heating and corresponding heat dissipation conditions, so that a more efficient cooling technology is crucial, the existing rotor cooling technology is air cooling, a hollow shaft is cooled by cooling oil, and the hollow shaft is used for cooling a rotor by a rotor iron core.
In the past, aiming at rotor temperature rise, the problem of rotor demagnetization prevention can only be carried out by lifting the permanent magnet mark, and if a better cold oil path design scheme is introduced, the type selection and the related cost of the permanent magnet are improved, and the oil path design and the electromagnetic scheme compatibility are related technical difficulties. Therefore, it is necessary to design a motor suitable for rotor and stator cooling.
Disclosure of Invention
The utility model aims to provide a motor suitable for cooling a rotor and a stator so as to solve the problems.
In order to achieve the above object, an embodiment of the present utility model provides an electric machine suitable for cooling a rotor and a stator, including: the motor comprises a motor shell and a hollow shaft penetrating through the motor shell along the axial direction, wherein a stator assembly is arranged in the motor shell and comprises a stator iron core and copper wires; and
a flow channel is arranged between the hollow shaft and the copper wire; wherein the method comprises the steps of
When cooling oil is injected into the hollow shaft, the cooling oil enters the flow channel and is sprayed onto the copper wires.
Further, a rotor end plate is arranged in the motor shell, one side of the rotor end plate is communicated with the hollow shaft, and the other side of the rotor end plate is communicated with the copper wire so as to form the flow channel.
Further, a magnet is arranged on one side of the rotor end plate, which faces the copper wire, and a rotor air gap is arranged between the rotor end plate and the magnet, and the rotor air gap faces the copper wire.
Further, an oil guide plate, a first magnetic guide plate, a special magnetic plate and a second magnetic guide plate are sequentially arranged in the rotor end plate from inside to outside, and the second magnetic guide plate is attached to the rotor end plate;
the oil guide plate, the first magnetic guide plate, the special magnetic plate and the second magnetic guide plate are sequentially communicated.
Further, oil holes are formed in the oil guide plate, the first magnetic guide plate, the special magnetic plate and the second magnetic guide plate.
Further, two oil guide grooves are formed in the special magnetic plate, the first magnetic guide plate and the second magnetic guide plate, and the two oil guide grooves are formed in two sides of the oil guide hole.
Further, a stator core is further arranged in the motor housing, and copper wires are wound at the end part of the stator core.
Further, a bearing is arranged between the motor shell and the hollow shaft.
Compared with the prior art, the embodiment of the utility model has the following beneficial effects: 1. through setting up oil guide board, first magnetic guide board, special shape magnetic guide board and second magnetic guide board and offer the oil guide hole to form the flow path between hollow shaft and the copper line, so that cooling oil cools off the high magnetic density region of rotor. 2. Two oil guide grooves are formed in the special magnetic plate, the first magnetic guide plate and the second magnetic guide plate, so that cooling oil cools the magnet.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 illustrates a partial cross-sectional view of an electric machine suitable for rotor and stator cooling in accordance with the present utility model;
fig. 2 shows a schematic view of the internal structure of the rotor end plate of the present utility model.
In the figure:
1. a motor housing; 2. a bearing; 3. a hollow shaft; 4. a rotor end plate; 41. an oil guide plate; 42. a first magnetic conductive plate; 43. a shaped magnetic plate; 44. a second magnetic conductive plate; 45. an oil guide hole; 46. an oil guiding groove; 5. a magnet; 6. a rotor air gap; 7. a stator core.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
1-2, this embodiment provides an electric machine suitable for rotor and stator cooling, comprising: the motor comprises a motor shell 1, wherein a stator assembly is arranged in the motor shell 1 and comprises a stator iron core 7 and copper wires. The motor also has a hollow shaft 3, the hollow shaft 3 is hollow inside and the inner cavity is adapted to circulate cooling oil. In addition, a flow channel is further arranged in the hollow shaft 3, two ends of the flow channel are respectively communicated with the motor shell 1 and the hollow shaft 3, and the end parts of the flow channel are arranged towards the copper wires. Specifically, a through hole is formed in the part, located inside the motor shell 1, of the hollow shaft 3, and when cooling oil is injected into the hollow shaft 3, the cooling oil in the hollow shaft 3 can enter a flow channel through the through hole and is sprayed onto the copper wire through the flow channel.
In order to achieve the above effect, a rotor end plate 4 is provided inside the motor housing 1, and one side of the rotor end plate 4 is communicated with the hollow shaft 3, and the other side is communicated with copper wires to form the flow passage. Specifically, the flow channels are located within the rotor end plate 4. The side of the rotor end plate 4 facing the copper wire is provided with a magnet 5, a rotor air gap 6 is arranged between the rotor end plate 4 and the magnet 5, and the rotor air gap 6 is arranged facing the copper wire. After passing through the flow channels, the cooling oil can be sprayed onto the copper wire through the rotor air gap 6 to cool the copper wire.
In order to achieve the effect of guiding the cooling oil of the hollow shaft 3 to the rotor air gap 6, in this embodiment, an oil guide plate 41, a first magnetic guide plate 42, a special magnetic guide plate 43 and a second magnetic guide plate 44 are sequentially arranged inside the rotor end plate 4 from inside to outside, and the second magnetic guide plate 44 is attached to the rotor end plate 4. The oil guide plate 41, the first magnetic guide plate 42, the special magnetic plate 43 and the second magnetic guide plate 44 are sequentially communicated. The cooling oil in the hollow shaft 3 enters the guide plate through the through holes, then enters the first magnetic conduction plate 42 through the guide plate, enters the special-shaped magnetic plate 43 through the first magnetic conduction plate 42, enters the second magnetic conduction plate 44 through the special-shaped magnetic plate 43, flows to the rotor air gap 6 between the rotor end plates 4 through the second magnetic conduction plate 44, and is sprayed onto the copper wires through the rotor air gap 6.
In order to achieve the effect of cooling oil flowing among the oil guide plate 41, the first magnetic guide plate 42, the special magnetic guide plate 43 and the second magnetic guide plate 44, in this embodiment, oil guide holes 45 are formed in each of the oil guide plate 41, the first magnetic guide plate 42, the special magnetic guide plate 43 and the second magnetic guide plate 44. The cooling oil can flow between the oil guide plate 41, the first magnetic guide plate 42, the special magnetic plate 43, and the second magnetic guide plate 44 through the oil guide holes 45.
In order to further enhance the cooling of the magnet 5 by the cooling oil, two oil guiding grooves 46 are formed in the special magnetic plate 43, the first magnetic guiding plate 42 and the second magnetic guiding plate 44, and the two oil guiding grooves 46 are formed on two sides of the oil guiding hole 45. The cooling oil flows to one side of the magnet 5 through the oil guide groove 46 to cool the magnet 5, and continues to flow to the outside along the magnet 5 to the rotor air gap 6 and is ejected outside. Through above-mentioned setting for the cooling oil is effectual dispels the heat to the high magnetic density district of partial rotor, takes away the heat of rotor silicon steel sheet and magnet steel, carries out effectual cooling under high rotational speed operating mode, the effectual temperature that can reduce rotor and magnet steel, guarantees permanent magnet characteristic, more effectual assurance electricity drives the performance, reaches the purpose that reduces the cost and increases efficiency.
In the second embodiment, which is implemented on the basis of the first embodiment, the motor housing 1 further includes a stator core 7, and copper wires are wound around the stator core 7. Furthermore, a bearing 2 is provided between the motor housing 1 and the hollow shaft 3. To ensure relative rotation between the motor housing 1 and the hollow shaft 3. Furthermore, it should be noted that the present embodiment has the disadvantage that the friction loss caused by the current modification also needs to be evaluated, and the cooling oil is introduced into the rotor by adding carbon fiber or metal sheath outside the rotor to cause two sections of the rotor.
It should be noted that technical features such as other components of the motor related to the present application should be considered as the prior art, and specific structures, working principles, and possible control manners and spatial arrangements of the technical features should be selected conventionally in the art, and should not be considered as the point of the utility model of the present application, which is not further specifically described in detail herein.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. An electric machine adapted for rotor and stator cooling, comprising:
the motor comprises a motor shell (1) and a hollow shaft (3) penetrating the motor shell (1) along the axial direction, wherein a stator assembly is arranged in the motor shell (1), and the stator assembly comprises a stator iron core (7) and copper wires; and
a flow channel is arranged between the hollow shaft (3) and the copper wire; wherein the method comprises the steps of
When cooling oil is injected into the hollow shaft (3), the cooling oil enters the flow channel and is sprayed onto the copper wires.
2. An electric machine suitable for rotor and stator cooling as claimed in claim 1, characterized in that,
the motor is characterized in that a rotor end plate (4) is arranged inside the motor shell (1), one side of the rotor end plate (4) is communicated with the hollow shaft (3), and the other side of the rotor end plate is communicated with a copper wire to form the flow channel.
3. An electric machine suitable for rotor and stator cooling as claimed in claim 2, characterized in that,
one side of the rotor end plate (4) facing the copper wire is provided with a magnet (5), a rotor air gap (6) is arranged between the rotor end plate (4) and the magnet (5), and the rotor air gap (6) is arranged facing the copper wire.
4. An electric machine suitable for rotor and stator cooling as claimed in claim 3, characterized in that,
the inside of the rotor end plate (4) is sequentially provided with an oil guide plate (41), a first magnetic guide plate (42), a special magnetic plate (43) and a second magnetic guide plate (44) from inside to outside, and the second magnetic guide plate (44) is attached to the rotor end plate (4);
the oil guide plate (41), the first magnetic guide plate (42), the special magnetic plate (43) and the second magnetic guide plate (44) are sequentially communicated.
5. An electric machine suitable for rotor and stator cooling as claimed in claim 4, characterized in that,
oil guide holes (45) are formed in the oil guide plate (41), the first magnetic guide plate (42), the special magnetic plate (43) and the second magnetic guide plate (44).
6. An electric machine suitable for rotor and stator cooling as claimed in claim 5, characterized in that,
two oil guide grooves (46) are formed in the special magnetic plate (43), the first magnetic guide plate (42) and the second magnetic guide plate (44), and the two oil guide grooves (46) are formed in two sides of the oil guide hole (45).
7. An electric machine suitable for rotor and stator cooling as claimed in claim 1, characterized in that,
the motor shell (1) is internally provided with a stator core (7), and copper wires are wound on the stator core (7).
8. An electric machine suitable for rotor and stator cooling as claimed in claim 1, characterized in that,
a bearing (2) is arranged between the motor shell (1) and the hollow shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322352964.XU CN220653067U (en) | 2023-08-31 | 2023-08-31 | Motor suitable for rotor and stator cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322352964.XU CN220653067U (en) | 2023-08-31 | 2023-08-31 | Motor suitable for rotor and stator cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220653067U true CN220653067U (en) | 2024-03-22 |
Family
ID=90292874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322352964.XU Active CN220653067U (en) | 2023-08-31 | 2023-08-31 | Motor suitable for rotor and stator cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220653067U (en) |
-
2023
- 2023-08-31 CN CN202322352964.XU patent/CN220653067U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |