CN218940796U - Motor stator and motor - Google Patents
Motor stator and motor Download PDFInfo
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- CN218940796U CN218940796U CN202320137241.5U CN202320137241U CN218940796U CN 218940796 U CN218940796 U CN 218940796U CN 202320137241 U CN202320137241 U CN 202320137241U CN 218940796 U CN218940796 U CN 218940796U
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- motor
- peripheral wall
- heat dissipation
- heat dissipating
- winding core
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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
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses a motor stator and a motor, wherein the motor stator comprises: the motor comprises a motor shell, wherein a radiating fin used for being in contact with external air is arranged on the peripheral wall of the motor shell, and a cooling water channel is arranged in the motor shell; the motor comprises a winding core body, wherein the winding core body is positioned in the motor shell, one of the outer peripheral wall of the winding core body and the inner peripheral wall of the motor shell is provided with a heat dissipation tooth slot, the other one of the outer peripheral wall of the winding core body and the inner peripheral wall of the motor shell is provided with a heat dissipation protrusion, and the heat dissipation protrusion is in plug-in fit with the heat dissipation tooth slot in the radial direction of the winding core body. According to the motor stator provided by the embodiment of the utility model, the heat conduction efficiency is improved by increasing the contact area of the stator core and the aluminum shell and the contact area of the aluminum shell and the cooling liquid and the contact area of the aluminum shell and the air.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a motor stator and a motor.
Background
With the high power, high speed and miniaturization of the motor, the temperature rise problem of the motor stator core is more and more prominent, the traditional water-cooled motor stator core adopts the heat dissipation of the outer circumferential surface and the shell aluminum to match with the heat conduction mode, and the heat conductivity is as follows: aluminum shell > iron (stator core heat source) > water (coolant) > air.
But the heat dissipation is realized by adopting the heat conduction mode of matching the outer circumferential surface with the shell (aluminum), the contact area is limited, the heat dissipation effect is poor, the heat dissipation structure of the shell is simple, and the contact area of water and air is small.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to provide a motor stator that improves heat conduction efficiency by increasing a contact area of a stator core and an aluminum housing, a contact area of an aluminum housing and a coolant, and an aluminum housing and air.
According to an embodiment of the present utility model, a motor stator includes: the motor comprises a motor shell, wherein a radiating fin used for being in contact with external air is arranged on the peripheral wall of the motor shell, and a cooling water channel is arranged in the motor shell; the motor comprises a winding core body, wherein the winding core body is positioned in the motor shell, one of the outer peripheral wall of the winding core body and the inner peripheral wall of the motor shell is provided with a heat dissipation tooth slot, the other one of the outer peripheral wall of the winding core body and the inner peripheral wall of the motor shell is provided with a heat dissipation protrusion, and the heat dissipation protrusion is in plug-in fit with the heat dissipation tooth slot in the radial direction of the winding core body.
According to the motor stator disclosed by the embodiment of the utility model, firstly, the radiating fins which are in contact with the external air are arranged on the peripheral wall of the motor shell, so that the radiating effect of the peripheral wall of the motor shell and the external air can be enhanced, in addition, the cooling water channel arranged in the motor shell is used for enhancing the contact area of the motor shell and water, the motor shell is further cooled by the water, and finally, the winding core body and the motor shell are connected through the plurality of radiating protrusions and radiating tooth grooves, so that the contact area of the connection part between the winding core body and the motor shell can be enhanced, and the radiating effect is enhanced.
According to the motor stator of the embodiment of the utility model, the heat radiating fins are configured as arc fins which extend radially outward from the outer peripheral wall of the motor housing and are curved in the circumferential direction of the motor housing.
According to the motor stator provided by the embodiment of the utility model, a plurality of the arc fins are uniformly distributed at intervals in the circumferential direction of the peripheral wall of the motor shell, and the radian of any two arc fins bending along the circumferential direction of the motor shell is the same.
According to the motor stator provided by the embodiment of the utility model, the cooling water channels are multiple, the cooling water channels are distributed at intervals in the circumferential direction of the motor shell, and each cooling water channel is internally provided with cooling fins which divide the cooling water channel into a plurality of sub water channels.
According to the motor stator of the embodiment of the utility model, a plurality of cooling fins are arranged in each cooling water channel, and the plurality of cooling fins are distributed at intervals in the circumferential direction of the motor shell.
According to the motor stator provided by the embodiment of the utility model, the plurality of heat dissipation tooth grooves and the plurality of heat dissipation protrusions are matched in a one-to-one correspondence manner to form a plurality of groups of heat dissipation structures, and the plurality of groups of heat dissipation structures are distributed at intervals in the circumferential direction of the motor shell.
According to the motor stator provided by the embodiment of the utility model, one part of the heat dissipation tooth grooves and the heat dissipation protrusions in the plurality of groups of heat dissipation structures are in interference fit, and the other part of the heat dissipation tooth grooves and the heat dissipation protrusions are in clearance fit.
According to the motor stator provided by the embodiment of the utility model, the number of the heat dissipation tooth grooves and the heat dissipation protrusions which are in interference fit in the plurality of groups of heat dissipation structures is smaller than that of the heat dissipation tooth grooves and the heat dissipation protrusions which are in clearance fit.
According to the motor stator provided by the embodiment of the utility model, the outer peripheral wall of the winding core body is coated with high-temperature resistant insulating paint or heat-conducting silicone grease.
The embodiment of the utility model also discloses a motor.
According to the motor provided by the embodiment of the utility model, the motor comprises the motor stator.
The motor and the motor stator have the same advantages compared with the prior art, and are not described in detail herein.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a front view of an embodiment of the utility model after connection between a motor housing and a winding core;
FIG. 2 is a cross-sectional view of an embodiment of the utility model after connection between a motor housing and a winding core;
FIG. 3 is a perspective view of the motor housing and winding core of an embodiment of the present utility model after connection;
FIG. 4 is a perspective view of a wrapped core according to an embodiment of the utility model;
FIG. 5 is a front view of a wraparound core according to an embodiment of the present utility model;
FIG. 6 is a cross-sectional view of the motor housing exterior heat dissipating fins of an embodiment of the present utility model opposite to that of FIG. 2, with the motor housing and winding core connected;
FIG. 7 is a schematic view of the motor housing of an embodiment of the present utility model;
FIG. 8 is a schematic view of the motor housing of an embodiment of the present utility model with heat dissipating fins external to the motor housing opposite to FIG. 7;
fig. 9 is a perspective view of a motor housing of an embodiment of the present utility model.
Reference numerals:
the motor shell 1 is provided with a winding core body 2, a heat dissipation tooth socket 3, a cooling water channel 4, cooling fins 5, heat dissipation bulges 6 and heat dissipation fins 7.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
The motor stator according to the embodiment of the present utility model is improved in heat conduction efficiency by three points of increasing the contact area at the junction between the winding core 2 and the motor housing 1 through the heat radiating fins 7 of the outer peripheral wall of the motor housing 1, the cooling water channel 4 inside the motor housing 1, and the winding core 2, as described below with reference to fig. 1 to 9.
As shown in fig. 1 to 9, a motor stator according to an embodiment of the present utility model includes: the motor comprises a motor shell 1 and a winding core body 2, wherein the peripheral wall of the motor shell 1 is provided with radiating fins 7 for contacting with external air, and a cooling water channel 4 is arranged in the motor shell 1; the winding core body 2 is positioned in the motor shell 1, one of the outer peripheral wall of the winding core body 2 and the inner peripheral wall of the motor shell 1 is provided with a heat dissipation tooth slot 3, the other is provided with a heat dissipation bulge 6, and the heat dissipation bulge 6 is in plug-in fit with the heat dissipation tooth slot 3 in the radial direction of the winding core body 2.
Wherein, the winding core body 2 has high magnetic permeability and low cost; the outer peripheral wall of the motor shell 1 is provided with radiating fins 7, wherein the radiating fins 7 can be in various shapes such as fold lines, circular arcs, triangles and the like, and the radiating efficiency can be enhanced as long as the contact area between the radiating fins 7 and air can be enhanced.
In addition, a cooling water channel 4 is arranged in the motor housing 1, the cooling water channel 4 is a hollow flow channel in the motor housing 1, wherein cooling media such as water can be filled in the cooling water channel 4 for cooling the interior of the motor housing 1. Wherein, the cross section shape of the cooling water channel 4 can be designed to increase or adjust the inner surface area of the cooling water channel 4, thereby increasing the contact area of the cooling medium and the motor shell 1 and enhancing the cooling effect on the motor shell 1; and, there is the junction of winding core 2 and motor housing 1, can set up the heat dissipation tooth's socket 3 at there is the periphery wall of winding core 2, the interior perisporium of motor housing 1 matches the heat dissipation protruding 6 that sets up with the heat dissipation tooth's socket 3, of course also can set up the heat dissipation protruding 6 at there is the periphery wall of winding core 2 to set up the heat dissipation tooth's socket 3 that matches with the heat dissipation protruding 6 at the interior perisporium of motor housing 1, make there be the junction reinforcing two area of contact of winding core 2 and motor housing 1, thereby reinforcing heat conduction efficiency.
According to the embodiment of the utility model, the three angles of the radiating fins 7 on the peripheral wall of the motor shell 1, the cooling water channel 4 in the motor shell 1 and the contact area between the winding core body 2 and the motor shell 1 are increased, so that the heat conduction efficiency is improved.
In some embodiments, the heat radiation fins 7 are configured as arc fins that extend radially outward from the outer peripheral wall of the motor housing 1 and are curved in the circumferential direction of the motor housing 1.
Referring specifically to fig. 2 or fig. 6, the shape of the heat dissipation fins 7 on the peripheral wall of the motor housing 1 in fig. 2 is the same as that of the heat dissipation fins 7 in fig. 6, and the directions of the heat dissipation fins 7 are opposite, and the heat dissipation fins 7 are arc fins, which can be in contact with air uniformly, so that heat dissipation is uniform, the surfaces of the arc fins 7 are not sharp, and the heat dissipation fins have a good protection function for people or objects contacting the peripheral wall of the motor housing 1.
In some embodiments, the plurality of arc fins are distributed at intervals uniformly in the circumferential direction of the outer peripheral wall of the motor housing 1, and the radian of the curvature of any two arc fins along the circumferential direction of the motor housing 1 is the same.
In practice, generally when designing, all arc fins are designed to the same length, a plurality of arc fins with the same length are uniformly distributed at intervals in the circumferential direction of the peripheral wall of the motor shell 1, the heat dissipation aspect is more uniform, a plurality of arc fins are denser, the distances between adjacent arc fins are equal, the arc fins are denser for increasing the contact area between the peripheral wall of the motor shell 1 and air, but gaps are spaced between the adjacent arc fins, so that air can more easily enter the spaced gaps, the radian of bending of any two arc fins along the circumferential direction of the motor shell 1 is the same for ensuring the uniformity of the peripheral wall of the motor shell 1, and meanwhile, the heat dissipation uniformity is also realized, so that the phenomenon of uneven heat dissipation caused by different areas between the adjacent arc fins and the air contact areas due to different directions is avoided.
In some embodiments, the cooling water channels 4 are plural, and the plural cooling water channels 4 are distributed at intervals in the circumferential direction of the motor housing 1, and each cooling water channel 4 is provided with a cooling fin 5, and the cooling fin 5 divides the cooling water channel 4 into plural sub-water channels.
With continued reference to fig. 2 and 6, the sections of the motor housing 1 and the winding core 2 are circular, each cooling water channel 4 is arc-shaped, six cooling water channels 4 are spliced into a circle at intervals, as shown in fig. 2, namely, the arc length of one sixth of the circle is the arc length of the cooling water channel 4, the intervals between adjacent cooling water channels 4 are the same, the contact area between water in the cooling water channel 4 and the motor housing 1 can be enhanced by the arc-shaped cooling water channels 4, the heat dissipation efficiency of the motor housing 1 is enhanced, and the cooling efficiency can be further enhanced by the plurality of cooling fins 5 in each cooling water channel 4.
In some embodiments, the cooling fins 5 in each cooling water passage 4 are plural, and the plural cooling fins 5 are distributed at intervals in the circumferential direction of the motor housing 1.
In practice, a plurality of cooling fins 5 are evenly arranged along the arc shape of the cooling water channel 4, a plurality of cooling fins 5 are arranged inside each cooling water channel 4, the plurality of cooling fins 5 are spaced apart, the distances between the adjacent cooling fins 5 are equal, the cooling efficiency is improved, the flow of water in the cooling water channel 4 is not influenced, the shape of the cooling fins 5 is matched with the radian of the matched cooling water channel 4, the contact area with the motor shell 1 can be increased, and the cooling efficiency is enhanced.
In some embodiments, the heat dissipation tooth grooves 3 and the heat dissipation protrusions 6 are multiple and correspondingly matched to form multiple groups of heat dissipation structures, and the multiple groups of heat dissipation structures are distributed at intervals in the circumferential direction of the motor housing 1.
In practice, a plurality of heat dissipation tooth grooves 3 are formed in the peripheral wall of the winding core body 2, the plurality of heat dissipation tooth grooves 3 are uniformly distributed on the peripheral wall of the winding core body 2 at intervals, a plurality of heat dissipation protrusions 6 matched with the heat dissipation tooth grooves 3 are arranged on the inner peripheral wall of the motor shell 1, and the number of the heat dissipation protrusions 6 is the same as that of the heat dissipation tooth grooves 3, so that when the motor shell 1 is connected with the winding core body 2, the plurality of heat dissipation protrusions 6 are clamped in the plurality of heat dissipation tooth grooves 3, the contact area of a connecting part is increased, and the heat conduction efficiency is enhanced.
In some embodiments, the heat dissipation tooth grooves 3 and the heat dissipation protrusions 6 of one part of the plurality of groups of heat dissipation structures are in interference fit, and the heat dissipation tooth grooves 3 and the heat dissipation protrusions 6 of the other part of the heat dissipation structures are in clearance fit; the interference fit is to connect the winding core 2 with the motor housing 1 reliably, and the clearance fit is to facilitate installation, avoid excessive positioning, and also affect heat dissipation.
In some embodiments, the number of interference fit heat dissipating gullets 3 and heat dissipating protrusions 6 in the multiple sets of heat dissipating structures is less than the number of clearance fit heat dissipating gullets 3 and heat dissipating protrusions 6. The motor shell 1 and the winding core body 2 are in clearance fit, so that the motor shell is convenient to install, over-positioning is avoided, machining amount is reduced, cost is reduced, the motor shell 1 can be directly cast during clearance fit, direct installation is not needed, machining is not needed, but finer machining is needed when interference fit is needed, and machining cost is increased.
In some embodiments, the outer peripheral wall of the winding core 2 is coated with a high temperature resistant insulating varnish or a thermally conductive silicone grease. The high-temperature resistant insulating paint or the heat-conducting silicone grease is used for ensuring the contact area between the motor shell 1 and the winding core body 2 and enhancing the heat conduction efficiency.
The embodiment of the utility model also discloses a motor.
The motor according to the embodiment of the present utility model includes any one of the foregoing motor stators, where the motor and the foregoing motor stator have the same advantages as those of the prior art, and are not described herein again.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.
In the description of the present utility model, "plurality" means two or more.
In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.
In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A motor stator, comprising:
the motor comprises a motor shell, wherein a radiating fin used for being in contact with external air is arranged on the peripheral wall of the motor shell, and a cooling water channel is arranged in the motor shell;
the motor comprises a winding core body, wherein the winding core body is positioned in the motor shell, one of the outer peripheral wall of the winding core body and the inner peripheral wall of the motor shell is provided with a heat dissipation tooth slot, the other one of the outer peripheral wall of the winding core body and the inner peripheral wall of the motor shell is provided with a heat dissipation protrusion, and the heat dissipation protrusion is in plug-in fit with the heat dissipation tooth slot in the radial direction of the winding core body.
2. The motor stator according to claim 1, wherein the heat radiating fins are configured as arc fins extending radially outward from an outer peripheral wall of the motor housing and curved in a circumferential direction of the motor housing.
3. The motor stator according to claim 2, wherein the plurality of the arc-shaped fins are provided in plural, and the plurality of the arc-shaped fins are uniformly spaced apart in the circumferential direction of the outer peripheral wall of the motor housing, and the radian of the curvature of any two of the arc-shaped fins in the circumferential direction of the motor housing is the same.
4. The motor stator according to claim 1, wherein the cooling water passage is plural, and the plural cooling water passages are distributed at intervals in the circumferential direction of the motor housing, and each of the cooling water passages is provided with a cooling fin that divides the cooling water passage into plural sub-water passages.
5. The motor stator of claim 4 wherein there are a plurality of cooling fins in each of the cooling water passages and the plurality of cooling fins are spaced apart in the circumferential direction of the motor housing.
6. The motor stator of claim 1, wherein the plurality of heat dissipating slots and the plurality of heat dissipating protrusions are formed in a one-to-one correspondence to form a plurality of heat dissipating structures, and the plurality of heat dissipating structures are distributed at intervals in the circumferential direction of the motor housing.
7. The motor stator of claim 6 wherein one portion of the plurality of sets of said heat dissipating slots and said heat dissipating protrusions are interference fit and another portion of said heat dissipating slots and said heat dissipating protrusions are clearance fit.
8. The motor stator of claim 7 wherein the number of interference fit said heat dissipating slots and said heat dissipating protrusions in the plurality of sets of said heat dissipating structures is less than the number of clearance fit said heat dissipating slots and said heat dissipating protrusions.
9. The motor stator of claim 1 wherein the outer peripheral wall of the wound core is coated with a high temperature resistant insulating varnish or a thermally conductive silicone grease.
10. An electric machine comprising a stator as claimed in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320137241.5U CN218940796U (en) | 2023-01-16 | 2023-01-16 | Motor stator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320137241.5U CN218940796U (en) | 2023-01-16 | 2023-01-16 | Motor stator and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218940796U true CN218940796U (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320137241.5U Active CN218940796U (en) | 2023-01-16 | 2023-01-16 | Motor stator and motor |
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| CN (1) | CN218940796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116455142A (en) * | 2023-06-16 | 2023-07-18 | 沈阳微控新能源技术有限公司 | Motor assembly of flywheel energy storage device and flywheel energy storage device |
-
2023
- 2023-01-16 CN CN202320137241.5U patent/CN218940796U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116455142A (en) * | 2023-06-16 | 2023-07-18 | 沈阳微控新能源技术有限公司 | Motor assembly of flywheel energy storage device and flywheel energy storage device |
| CN116455142B (en) * | 2023-06-16 | 2023-09-12 | 沈阳微控新能源技术有限公司 | Motor assembly of flywheel energy storage device and flywheel energy storage device |
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