CN219513865U - Self-driven circulating heat dissipation motor - Google Patents
Self-driven circulating heat dissipation motor Download PDFInfo
- Publication number
- CN219513865U CN219513865U CN202320615734.5U CN202320615734U CN219513865U CN 219513865 U CN219513865 U CN 219513865U CN 202320615734 U CN202320615734 U CN 202320615734U CN 219513865 U CN219513865 U CN 219513865U
- Authority
- CN
- China
- Prior art keywords
- rotor
- channel
- heat dissipation
- stator
- self
- 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
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
Abstract
The utility model discloses a self-driven circulating heat dissipation motor, which comprises: the shell is fixedly connected with a stator, and a stator through hole is formed in the stator along the axial direction; the rotor is fixedly connected to the rotating shaft and rotates relative to the stator under the constraint of the rotating shaft; the axial direction of the rotor is provided with a channel, the distance between the central line of the channel and the central line of the rotating shaft is gradually increased along the axial direction, when the rotor rotates, the medium is driven by the centrifugal force difference at two sides of the channel to flow, and after flowing out of the channel, the medium passes through the stator along the stator through hole to return to the channel, so that flowing circulation is formed. When the motor rotor rotates, the heat dissipation medium can be driven by the rotor to flow automatically, so that the heat dissipation effect is exerted.
Description
Technical Field
The utility model relates to a self-driven circulating heat dissipation motor, and belongs to the technical field of fluid machinery.
Background
Modern electric machines, in pursuit of high power densities, typically employ a flowing medium, such as a liquid or gas, through the interstices between the motor rotor, stator and windings to rapidly carry away the heat accumulated on the rotor, stator and windings.
In prior designs, the motive force for the medium flowing inside the motor was provided by an external pump. The medium is injected from the axial direction of the rotating shaft, flows out through the holes in the radial direction of the rotating shaft, and flows through the gaps among the rotor, the stator and the windings. The design makes the processing technology of the rotating shaft complex and the sealing difficulty big.
In the existing design, the weight reducing holes of the motor rotor are arranged in parallel along the axial direction of the rotor, so that the weight reducing effect is mainly exerted, and the function of promoting heat dissipation is not fully exerted.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a self-driven circulating heat dissipation motor, wherein heat dissipation media can flow automatically under the drive of a rotor of the motor when the rotor rotates, so that the heat dissipation effect is exerted. In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the utility model provides a self-driven circulating heat dissipation motor, which comprises:
the shell is fixedly connected with a stator, and a stator through hole is formed in the stator along the axial direction;
the rotor is fixedly connected to the rotating shaft and rotates relative to the stator under the constraint of the rotating shaft;
the axial direction of the rotor is provided with a channel, the distance between the central line of the channel and the central line of the rotating shaft is gradually increased along the axial direction, when the rotor rotates, the medium is driven by the centrifugal force difference at two sides of the channel to flow, and after flowing out of the channel, the medium passes through the stator along the stator through hole to return to the channel, so that flowing circulation is formed.
Optionally, the diameter of the channel is not greater than 0.5d, d being the difference between the outer diameter and the inner diameter of the rotor.
Optionally, the rotor comprises multistage short rotor, and the axial of every section short rotor all is equipped with the rotor through-hole, and the rotor through-hole of every section short rotor is connected as the passageway that runs through, the distance of passageway central line and rotation axis central line increases along the axial gradually.
Optionally, the central axis of the rotor through hole of the short rotor is parallel to the central axis of the rotary shaft.
Optionally, the diameter of the rotor through hole is not greater than 0.5d, d being the difference between the outer diameter and the inner diameter of the rotor.
Optionally, the short rotor is obtained by sintering after pressing according to a die.
Optionally, the short rotors are provided with permanent magnets, and the permanent magnets of each adjacent section of short rotor are staggered by a preset angle.
Optionally, a stator through hole is axially formed in the stator, and the medium flows out of the channel, flows back to the channel along the gap and the stator through hole.
Optionally, the shell is provided with a medium inlet and a medium outlet, and the medium inlet and the medium outlet are respectively connected with an external heat dissipation device through pipelines.
Optionally, a valve is arranged on the pipeline.
Preferably, the valve is a one-way valve.
Compared with the prior art, the self-driven circulating heat dissipation motor provided by the embodiment of the utility model has the beneficial effects that:
the utility model comprises a shell, wherein a stator is fixedly connected in the shell, and a stator through hole is axially formed in the stator; the rotor is fixedly connected to the rotating shaft and rotates relative to the stator under the constraint of the rotating shaft; a channel is arranged in the axial direction of the rotor, and the distance between the central line of the channel and the central line of the rotating shaft is gradually increased along the axial direction; the utility model does not need special processing and assembly of the rotating shaft, can reduce the quality of the motor rotor like the traditional lightening hole, fully utilizes the rotor segmentation process needed by segmentation oblique poles, and has small increase of material cost;
when the rotor rotates, the medium flows under the drive of the centrifugal force difference at the two sides of the channel, and flows around the stator along the gap after flowing out of the channel to return to the channel, so that flowing circulation is formed; according to the utility model, a channel with gradually changed distance from the center of the rotating shaft is arranged on the motor rotor, and the heat dissipation medium is pushed to pass through the channel by utilizing the difference of the centrifugal force of the medium in each channel when the rotor rotates, so that the flow of the heat dissipation medium in the gaps among the rotor, the stator and the shell is promoted; according to the utility model, an external liquid pump is not required to be driven, and the effect of promoting heat dissipation can be automatically exerted only by rotating the motor, so that the motor has good reliability; meanwhile, the higher the motor rotation speed is, the higher the power consumption is, the higher the flowing speed of the heat dissipation medium is, and the better the effect of taking away the heat in the motor is.
Drawings
Fig. 1 is a cross-sectional view of a self-driven circulation heat dissipation motor according to a first embodiment of the present utility model;
fig. 2 is a side view of a self-driven circulation heat dissipation motor according to a first embodiment of the present utility model;
fig. 3 is a cross-sectional view of a self-driven circulation heat dissipation motor according to a second embodiment of the present utility model;
fig. 4 is a perspective view of a self-driven circulation heat dissipation motor with a omitted casing according to a second embodiment of the present utility model.
In the figure:
1. a housing; 2. a stator; 3. a rotor; 4. a rotation shaft; 5. a channel; 6. a rotor through hole; 7. a coil; 8. a permanent magnet; 9. stator through holes.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the terms "upper/lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", 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 apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured/arranged," "coupled," "connected," and the like are to be construed broadly and include, for example, "connected," either fixedly, detachably, or integrally; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples
As shown in fig. 1 and 2, a self-driven circulation heat dissipation motor includes: the rotor comprises a housing 1, a stator 2, a rotating shaft 4, a rotor 3, a channel 5, a coil 7 and a permanent magnet 8. The stator 2 is fixedly connected in the shell 1, the rotor 3 is fixedly connected on the rotating shaft 4, and the rotor is in rotating motion relative to the stator 2 under the constraint of the rotating shaft 4.
As shown in fig. 1, a channel 5 is arranged in the axial direction of the rotor 3, the distance between the center line of the channel 5 and the center line of the rotating shaft 4 is gradually increased along the axial direction, when the rotor 3 rotates, the medium is driven by the difference of centrifugal forces at two sides of the channel 5 to flow, and as shown by an arrow in fig. 1, the coal flows out of the channel 5 and then flows around the stator 2 along the gap for one circle to return to the channel 5, so that the flowing circulation is formed.
Specifically, the diameter of the passage 5 is not more than 0.5d, d being the difference between the outer diameter and the inner diameter of the rotor 3.
As shown in fig. 2, the coil 7 is wound on the stator 2, the surface of the rotor 3 is provided with grooves, and the permanent magnet 8 is arranged in the grooves. The stator 2 is provided with a stator through hole 9 along the axial direction, and the medium flows back to the channel 5 along the stator through hole 9 after flowing out of the channel 5, so that heat accumulated on the stator 2 and the coil 7 can be further taken away.
The shell 1 is provided with a medium inlet and a medium outlet, and the medium inlet and the medium outlet are respectively connected with an external heat dissipation device through pipelines. The pipeline is provided with a valve, and the valve is preferably a one-way valve.
According to the utility model, an external liquid pump is not required to be driven, and the effect of promoting heat dissipation can be automatically exerted only by rotating the motor, so that the motor has good reliability; meanwhile, the higher the motor rotation speed is, the higher the power consumption is, the higher the flowing speed of the heat dissipation medium is, and the better the effect of taking away the heat in the motor is.
Examples
As shown in fig. 3 and 4, a self-driven circulation heat dissipation motor includes: the rotor comprises a housing 1, a stator 2, a rotating shaft 4, a rotor 3, a channel 5, a coil 7 and a permanent magnet 8. The stator 2 is fixedly connected in the shell 1, the rotor 3 is fixedly connected on the rotating shaft 4, and the rotor is driven by the rotating shaft 4 to axially move relative to the stator 2.
In this embodiment, as shown in fig. 3 and 4, the rotor 3 is composed of multiple sections of short rotors, rotor through holes 6 are respectively arranged in the axial direction of each section of short rotor, the rotor through holes 6 of each section of short rotor are connected into a through channel 5, and the distance between the central line of the channel 5 and the central line of the rotating shaft 4 is gradually increased along the axial direction. When the rotor 3 rotates, the medium is driven by the difference of centrifugal forces at two sides of the channel 5 to flow, and as shown by arrows in fig. 3, the coal flows out of the channel 5 and then flows round the stator 2 along the gap to return to the channel 5, so that the flowing circulation is formed.
The diameter of the rotor through hole 6 is not more than 0.5d, d being the difference between the outer diameter and the inner diameter of the rotor 3.
As shown in fig. 4, the coil 7 is wound on the stator 2, the surface of the short rotor is provided with a groove, the permanent magnets 8 are arranged in the groove, and the permanent magnets 8 of each adjacent short rotor are staggered by a preset angle. The stator 2 is provided with a stator through hole 9 along the axial direction, and the medium flows back to the channel 5 along the stator through hole 9 after flowing out of the channel 5, so that heat accumulated on the stator and the coil 7 can be further taken away.
As shown in fig. 3, the center axis of the rotor through-hole 6 of the short rotor is parallel to the center axis of the rotary shaft 4. The short rotor is obtained by stamping according to a die.
The segmented rotor is able to take full advantage of the rotor segmentation process required to segment the skewed poles with less material cost increase but with slightly less media flow effect than in the first embodiment.
The shell 1 is provided with a medium inlet and a medium outlet, and the medium inlet and the medium outlet are respectively connected with an external heat dissipation device through pipelines. The pipeline is provided with a valve, and the valve is preferably a one-way valve.
According to the utility model, an external liquid pump is not required to be driven, and the effect of promoting heat dissipation can be automatically exerted only by rotating the motor, so that the motor has good reliability; meanwhile, the higher the motor rotation speed is, the higher the power consumption is, the higher the flowing speed of the heat dissipation medium is, and the better the effect of taking away the heat in the motor is.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (9)
1. A self-driven circulating heat dissipation motor, comprising:
the shell is fixedly connected with a stator, and a stator through hole is formed in the stator along the axial direction;
the rotor is fixedly connected to the rotating shaft and rotates relative to the stator under the constraint of the rotating shaft;
the axial direction of the rotor is provided with a channel, the distance between the central line of the channel and the central line of the rotating shaft is gradually increased along the axial direction, when the rotor rotates, the medium is driven by the centrifugal force difference at two sides of the channel to flow, and after flowing out of the channel, the medium passes through the stator along the stator through hole to return to the channel, so that flowing circulation is formed.
2. The self-driven circulation heat sink motor of claim 1 wherein the diameter of the channel is no greater than 0.5d, d being the difference between the outer diameter and the inner diameter of the rotor.
3. The self-driven circulating heat dissipation motor according to claim 1, wherein the rotor is composed of a plurality of sections of short rotors, rotor through holes are formed in the axial direction of each section of short rotor, the rotor through holes of each section of short rotor are connected into a penetrating channel, and the distance between the central line of the channel and the central line of the rotating shaft is gradually increased along the axial direction.
4. A self-driven circulation heat dissipation motor according to claim 3, wherein the center axis of the rotor through-hole of the short rotor is parallel to the center axis of the rotary shaft.
5. A self-driven circulation heat dissipation motor according to claim 3 and wherein said rotor through bore has a diameter of no more than 0.5d, d being the difference between the outer diameter and the inner diameter of the rotor.
6. A self-driven circulation heat dissipation motor according to claim 3, wherein said short rotor is obtained by pressing and sintering according to a mold.
7. A self-driven circulating heat dissipation motor as defined in claim 3, wherein the short rotors are provided with permanent magnets, and the permanent magnets of adjacent short rotors are staggered by a preset angle.
8. The self-driven circulating heat dissipation motor according to claim 1, wherein the housing is provided with a medium inlet and a medium outlet, and the medium inlet and the medium outlet are respectively connected with an external heat dissipation device through pipelines.
9. The self-driven circulating heat dissipation motor of claim 8, wherein the conduit is provided with a valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320615734.5U CN219513865U (en) | 2023-03-27 | 2023-03-27 | Self-driven circulating heat dissipation motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320615734.5U CN219513865U (en) | 2023-03-27 | 2023-03-27 | Self-driven circulating heat dissipation motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219513865U true CN219513865U (en) | 2023-08-11 |
Family
ID=87524052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320615734.5U Active CN219513865U (en) | 2023-03-27 | 2023-03-27 | Self-driven circulating heat dissipation motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219513865U (en) |
-
2023
- 2023-03-27 CN CN202320615734.5U patent/CN219513865U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8303268B2 (en) | Rotary pump with a fixed shaft | |
| CN111306070B (en) | Centrifugal pump with rotor integrated blade axial flux permanent magnet motor | |
| CN110932475B (en) | Oil-cooled motor | |
| US10385856B1 (en) | Modular electric submersible pump assemblies with cooling systems | |
| CN108286523B (en) | High-speed centrifugal pump directly driven by permanent magnet motor | |
| CN219513865U (en) | Self-driven circulating heat dissipation motor | |
| US6425732B1 (en) | Shrouded rotary compressor | |
| CA3125071C (en) | Permanent magnet direct-drive slurry pump based on gas film drag reduction | |
| CN115539400A (en) | Centrifugal double suction pump of integrated impeller of disk reluctance motor | |
| CN204928437U (en) | Novel wind path cooling structure | |
| CN208534775U (en) | Outer rotor double entry pump | |
| CN110601448A (en) | Liquid cooling high power density position-free control PMSM motor | |
| CN216343036U (en) | Magnetic suspension hydrogen circulating pump | |
| CN112701827B (en) | Permanent-magnet outer rotor submersible electric pump | |
| CN214698431U (en) | Axial flow fan | |
| CN211266681U (en) | Forced cooling type solid rotor motor | |
| CN113904469A (en) | Double inner-cooling type high-speed induction motor with axial multi-section rotor chute | |
| CN113300506A (en) | Slot wedge type in-slot liquid cooling motor | |
| CN218243259U (en) | Motor oil cooling system | |
| WO2024087682A1 (en) | Efficient oil-cooled motor | |
| CN217632946U (en) | Centrifugal circulating pump | |
| CN220505336U (en) | Intelligent double-drive pump and water supply system | |
| CN218760600U (en) | Stator for heating pump and heating pump | |
| CN216553888U (en) | Outer rotor type composite submersible motor and lifting device | |
| CN219322169U (en) | Rotor, motor and air compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |