CN113555995A - Wheel hub motor and wheel based on heat pipe heat dissipation - Google Patents
Wheel hub motor and wheel based on heat pipe heat dissipation Download PDFInfo
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- CN113555995A CN113555995A CN202110892630.4A CN202110892630A CN113555995A CN 113555995 A CN113555995 A CN 113555995A CN 202110892630 A CN202110892630 A CN 202110892630A CN 113555995 A CN113555995 A CN 113555995A
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- heat pipe
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/225—Heat pipes
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to a heat pipe radiation-based hub motor and a wheel, comprising a hub, wherein the hub is fixedly assembled with a motor shell; a motor housing having an outer rotor and an inner stator disposed therein; the outer rotor is relatively fixed with the motor shell; the inner stator is coaxially and fixedly provided with a motor shaft, and the inner end of the motor shaft is used for connecting an axle or a vehicle body suspension; an inner side radiating fin is fixedly arranged on one side of the motor shell facing the inner end of the motor shaft; the outer rotor heat pipe is arranged corresponding to the outer rotor and fixedly assembled with the outer rotor, and is provided with an evaporation end and a condensation end; and the inner stator heat pipe is arranged corresponding to the inner stator and fixedly assembled with the motor shaft and the inner stator, and the inner stator heat pipe is provided with an evaporation end and a condensation end. During the use, be different from current in-wheel motor and arrange radiating fin in-wheel motor inside and outside both sides, this in-wheel motor only arranges inboard radiating fin at the motor inboard to combine with the heat pipe and carry out the heat dissipation work, improve the radiating efficiency greatly.
Description
Technical Field
The invention relates to a hub motor and a wheel based on heat pipe heat dissipation.
Background
The outer rotor wheel hub motor is one of the main motors that use such as the electronic car of riding instead of walk of light-duty electric automobile down, and its simple structure can refer to the wheel hub motor power suspension device disclosed in the chinese utility model patent that the publication number is CN202555726U during the use, and wheel hub motor's motor shaft is connected with the shock absorber assembly, and wheel hub motor's the outer rotor outside is fixed to be equipped with wheel hub, and the tire is installed in the wheel hub outside to form the wheel. The hub motor has the advantages of simple and compact integral structure, shortened axial size, higher efficiency, large torque regulation range, high response speed, no reduction mechanism, higher power transmission efficiency and the like.
For the outer rotor hub motor, because the external output torque is relatively small, under the working conditions of starting, climbing or heavy load, the output torque is increased, the winding current is increased, the temperature of main heat-generating areas such as a winding, a stator and a rotor is sharply increased, the heat generation is increased, and the internal working condition of the motor is deteriorated. When the heat inside the motor cannot be dissipated effectively, there are a number of adverse effects: if the permanent magnet is easy to damage, the risk of demagnetization of the permanent magnet is increased; accelerating the oxidation speed of the insulated enameled wire on the winding to enable the insulated enameled wire to lose the insulativity, and reducing the viscosity of lubricating oil to deteriorate the lubricating effect; the machine member is deformed by heat, etc.
The current heat dissipation methods are water cooling, oil cooling and air cooling. Although the water cooling effect is good, a water channel needs to be arranged in the motor, so that the whole structure is complex, and a series of problems such as water channel sealing exist. Forced air cooling mainly is through improving air convection thereby taking the heat out, but, in actual work, under the vehicle is in operating mode such as high load climbing acceleration, the speed of a motor vehicle is lower, and forced air cooling often can not satisfy the heat dissipation demand. Although oil cooling is superior to air cooling heat dissipation, cooling oil needs to be stored in the oil cooling device, the heat absorption performance of the cooling oil gradually deteriorates along with the increase of time during long-term work, meanwhile, heat dissipation cannot be timely achieved in a high-temperature heat generation area, and the problem of sealing needs to be considered.
The invention discloses a device for strengthening the heat dissipation performance of a hub motor in Chinese invention patent application with application publication number CN105515227A, wherein front and rear end covers of the hub motor form a motor shell, heat dissipation fins are respectively arranged on the outer sides of the front and rear end covers, a rotor is fixed with the front end cover, a stator is arranged in the rotor, the stator is fixedly assembled with a fixed shaft, in order to improve the heat dissipation performance of the hub motor, a front end cover heat pipe is arranged corresponding to the front end cover, a rotor heat pipe is arranged corresponding to the rotor, a stator heat pipe is arranged corresponding to the stator, an evaporation end of the heat pipe absorbs heat, releases heat at a condensation end, transfers the heat to the outer surface of the motor, and when the motor shell moves with the heat dissipation fins, forced convection air cooling is realized, and the heat dissipation effect of the whole hub motor is effectively improved. However, in the above in-wheel motor, the heat dissipation fins need to be respectively arranged on the front end cover and the rear end cover of the motor shell corresponding to the rotor heat pipe and the stator heat pipe, when the in-wheel motor is specifically applied to a wheel, the heat dissipation fins at one end are necessarily arranged towards the outer side of a vehicle body, the hub cover is installed on a general wheel in consideration of attractiveness, the hub cover can cover the outer side of the corresponding heat dissipation fins, the heat dissipation effect of the in-wheel motor can be influenced actually, the heat dissipation performance is reduced, and the appearance of the wheel is also influenced by arranging the heat dissipation fins in a protruding mode on the outer side.
Disclosure of Invention
The invention aims to provide a hub motor based on heat pipe heat dissipation, which aims to solve the technical problem that the heat dissipation effect of heat dissipation fins corresponding to one side of a hub cover is poor and the overall heat dissipation effect is influenced because the heat dissipation fins are arranged on the outer sides of end covers at two sides of the hub motor in the prior art; meanwhile, the invention also provides a wheel using the hub motor.
In order to achieve the purpose, the technical scheme of the hub motor based on heat pipe heat dissipation provided by the invention is as follows: a wheel hub motor based on heat pipe heat dissipation includes:
a motor housing having an outer rotor and an inner stator disposed therein;
the outer rotor is relatively fixed with the motor shell;
the inner stator is coaxially and fixedly provided with a motor shaft, a bearing structure is arranged between the motor shaft and the motor shell, and the inner end of the motor shaft is used for connecting an axle or a vehicle body suspension;
an inner side radiating fin is fixedly arranged on one side of the motor shell facing the inner end of the motor shaft;
the in-wheel motor still includes:
the outer rotor heat pipe is arranged corresponding to the outer rotor and fixedly assembled with the outer rotor, the outer rotor heat pipe is provided with an evaporation end and a condensation end, the evaporation end of the outer rotor heat pipe is in heat conduction contact with the outer rotor to absorb heat emitted by the outer rotor, and the condensation end of the outer rotor heat pipe is in heat conduction contact with the inner side heat radiating fins or arranged close to the inner side heat radiating fins to transfer the heat to the inner side heat radiating fins;
and the inner stator heat pipe is arranged corresponding to the inner stator and fixedly assembled with the motor shaft and the inner stator, the inner stator heat pipe is provided with an evaporation end and a condensation end, the evaporation end of the inner stator heat pipe is used for absorbing heat radiated by the inner stator, the inner stator heat pipe extends towards the inner side radiating fin along the motor shaft, and the condensation end of the inner stator heat pipe is arranged close to the inner side radiating fin so as to transfer the heat to the inner side radiating fin.
The beneficial effects are that: the hub motor based on heat pipe heat dissipation is characterized in that the inner side heat dissipation fins are arranged on the motor shell towards the inner end of the motor shaft, the inner stator is used for absorbing and transferring heat to the inner stator, the outer rotor heat pipe is used for absorbing and transferring heat to the outer rotor, the heat absorbed by the inner stator heat pipe and the heat absorbed by the outer rotor heat pipe are finally transferred to the inner side heat dissipation fins, the inner side heat dissipation fins transfer the heat to the air, and the work of heat dissipation of the inner stator and the outer rotor of the hub motor is completed.
As a further improvement, the outer peripheral surface of the motor shaft is provided with at least two first mounting grooves, the first mounting grooves extend along the axial direction of the motor shaft and are distributed at intervals along the circumferential direction of the motor shaft, and the inner stator heat pipes are correspondingly mounted in the first mounting grooves.
The beneficial effects are that: the inner stator heat pipes correspond to the first mounting grooves one by one, and the overall radial size cannot be increased too much.
As a further improvement, the inner stator heat pipe is connected with the motor shaft through an inner stator support frame, the inner stator support frame is positioned between the inner stator heat pipe and the motor shaft, the inner stator heat pipe is L-shaped, the inner stator heat pipe comprises an axial pipe section and a radial pipe section, the axial pipe section of the inner stator heat pipe is provided with a condensation end of the inner stator heat pipe, the radial pipe section of the inner stator heat pipe is provided with an evaporation end of the inner stator heat pipe, the axial pipe section of the inner stator heat pipe is installed in the first installation groove, and the radial pipe section of the inner stator heat pipe extends along the radial direction of the inner stator support frame and is in heat conduction contact with the inner stator support frame.
The beneficial effects are that: the inner stator heat pipe is provided with an evaporation end and a condensation end, so that the heat can be conveniently transported by utilizing the phase change principle of the heat pipe.
As a further improvement, the corresponding side surface of the inner stator support frame facing the inner end of the motor shaft is provided with a radial installation groove, and a radial pipe section of the inner stator heat pipe is positioned in the radial installation groove.
The beneficial effects are that: the inner stator mounting groove corresponds to the radial pipe section of the inner stator heat pipe, so that the radial pipe section of the inner stator heat pipe is matched with the first mounting groove, and the L-shaped inner stator heat pipe is convenient to mount.
As a further improvement, the outer rotor heat pipe is L-shaped, the outer rotor heat pipe includes an axial pipe section and a radial pipe section, the axial pipe section of the outer rotor heat pipe has a condensation end of the outer rotor heat pipe, the radial pipe section of the outer rotor heat pipe has an evaporation end of the outer rotor heat pipe, the outer rotor has an annular heat conducting plate, the annular heat conducting plate is located on one side of the inner stator facing the inner end of the motor shaft, the radial pipe section of the outer rotor heat pipe extends along the radial direction of the outer rotor and is in heat conducting contact with the annular heat conducting plate, and the axial pipe section of the outer rotor heat pipe extends axially along the motor shaft to the outside of the motor housing and is located radially inward of the inner side heat radiating fins.
The beneficial effects are that: the outer rotor heat pipe is provided with the evaporation end and the condensation end, so that heat transportation can be conveniently completed by utilizing the phase change principle of the heat pipe, the annular heat conducting plate is arranged, the contact area of the evaporation section of the outer rotor heat pipe and the evaporation section of the outer rotor heat pipe is conveniently and effectively increased, and the heat dissipation performance is improved.
As a further improvement, a heat pipe retainer is fixedly arranged on one side of the annular heat conduction plate facing the inner stator, a plurality of radial extension grooves are arranged on the heat pipe retainer, the radial extension grooves extend along the radial direction of the outer rotor and are distributed at intervals along the circumferential direction of the outer rotor, and radial pipe sections of the outer rotor heat pipes are positioned in the radial extension grooves.
The beneficial effects are that: the heat pipe retainer is provided with a plurality of radial extending grooves which are in one-to-one correspondence with the radial pipe sections of the outer rotor, so that the heat pipes of the inner stator can be conveniently installed.
As a further improvement, a connecting shaft sleeve is arranged between the motor shell and the bearing structure, the connecting shaft sleeve is positioned on one side of the inner stator facing the inner end of the motor shaft, the connecting shaft sleeve, the motor shell and the heat pipe retainer are fixedly assembled, a second mounting groove is arranged on the outer peripheral surface of the connecting shaft sleeve, the second mounting groove of the connecting shaft sleeve axially extends along the connecting shaft sleeve and is uniformly distributed along the connecting shaft sleeve at intervals, and axial pipe sections of the outer rotor heat pipes are positioned in the second mounting groove.
The beneficial effects are that: a connecting shaft is arranged between the motor shell and the bearing structure, and a second mounting groove corresponding to the axial pipe section of the outer rotor heat pipe is arranged on the connecting shaft sleeve, so that the motor shell is supported conveniently and the outer rotor heat pipe is mounted conveniently.
As a further improvement, the inner side heat dissipation fins are fixedly sleeved outside the connecting shaft sleeve so as to be fixedly assembled with the motor shell.
The beneficial effects are that: the radiating fins are sleeved outside the connecting shaft, so that heat transfer between the connecting shaft and the radiating fins is convenient to realize.
As a further improvement, a heat-conducting bearing for conducting heat is arranged between the motor shaft and the connecting shaft sleeve.
The beneficial effects are that: the stable connection shaft sleeve that supports and the heat transfer that realizes of being convenient for.
The technical scheme of the wheel provided by the invention is as follows: a wheel of a vehicle comprising
A hub motor on which a hub is mounted;
the hub is fixedly assembled with a motor shell of the hub motor;
the in-wheel motor include:
a motor housing having an outer rotor and an inner stator disposed therein;
the outer rotor is relatively fixed with the motor shell;
the inner stator is coaxially and fixedly provided with a motor shaft, a bearing structure is arranged between the motor shaft and the motor shell, and the inner end of the motor shaft is used for connecting an axle or a vehicle body suspension;
an inner side radiating fin is fixedly arranged on one side of the motor shell facing the inner end of the motor shaft;
the in-wheel motor still includes:
the outer rotor heat pipe is arranged corresponding to the outer rotor and fixedly assembled with the outer rotor, the outer rotor heat pipe is provided with an evaporation end and a condensation end, the evaporation end of the outer rotor heat pipe is in heat conduction contact with the outer rotor to absorb heat emitted by the outer rotor, and the condensation end of the outer rotor heat pipe is in heat conduction contact with the inner side heat radiating fins or arranged close to the inner side heat radiating fins to transfer the heat to the inner side heat radiating fins;
and the inner stator heat pipe is arranged corresponding to the inner stator and fixedly assembled with the motor shaft and the inner stator, the inner stator heat pipe is provided with an evaporation end and a condensation end, the evaporation end of the inner stator heat pipe is used for absorbing heat radiated by the inner stator, the inner stator heat pipe extends towards the inner side radiating fin along the motor shaft, and the condensation end of the inner stator heat pipe is arranged close to the inner side radiating fin so as to transfer the heat to the inner side radiating fin.
The beneficial effects are that: has the advantages that: the invention provides a wheel based on heat pipe radiation, which is characterized in that a wheel hub is fixedly arranged on a motor shell of a wheel hub motor, inner side radiating fins are arranged on the motor shell towards the inner end of a motor shaft, an inner stator heat pipe is used for absorbing and transmitting heat to an inner stator, an outer rotor heat pipe is used for absorbing and transmitting heat to an outer rotor, the heat absorbed by the inner stator heat pipe and the heat absorbed by the outer rotor heat pipe are finally transmitted to the inner side radiating fins, the inner side radiating fins transmit the heat to the air, the work of radiating the inner stator and the outer rotor of the wheel hub motor is completed, the wheel hub motor is different from the prior wheel hub motor in that the radiating fins are arranged on the inner side and the outer side of the wheel hub motor, the inner side radiating fins rotate around the motor, the air flow rate among the inner side radiating fins is increased, and the wheel hub motor is combined with the heat pipes for radiating work, the heat dissipation efficiency is greatly improved.
As a further improvement, the outer peripheral surface of the motor shaft is provided with at least two first mounting grooves, the first mounting grooves extend along the axial direction of the motor shaft and are distributed at intervals along the circumferential direction of the motor shaft, and the inner stator heat pipes are correspondingly mounted in the first mounting grooves.
The beneficial effects are that: the inner stator heat pipes correspond to the first mounting grooves one by one, and the overall radial size cannot be increased too much.
As a further improvement, the inner stator heat pipe is connected with the motor shaft through an inner stator support frame, the inner stator support frame is positioned between the inner stator heat pipe and the motor shaft, the inner stator heat pipe is L-shaped, the inner stator heat pipe comprises an axial pipe section and a radial pipe section, the axial pipe section of the inner stator heat pipe is provided with a condensation end of the inner stator heat pipe, the radial pipe section of the inner stator heat pipe is provided with an evaporation end of the inner stator heat pipe, the axial pipe section of the inner stator heat pipe is installed in the first installation groove, and the radial pipe section of the inner stator heat pipe extends along the radial direction of the inner stator support frame and is in heat conduction contact with the inner stator support frame.
The beneficial effects are that: the inner stator heat pipe is provided with an evaporation end and a condensation end, so that the heat can be conveniently transported by utilizing the phase change principle of the heat pipe.
As a further improvement, the corresponding side surface of the inner stator support frame facing the inner end of the motor shaft is provided with a radial installation groove, and a radial pipe section of the inner stator heat pipe is positioned in the radial installation groove.
The beneficial effects are that: the inner stator mounting groove corresponds to the radial pipe section of the inner stator heat pipe, so that the radial pipe section of the inner stator heat pipe is matched with the first mounting groove, and the L-shaped inner stator heat pipe is convenient to mount.
As a further improvement, the outer rotor heat pipe is L-shaped, the outer rotor heat pipe includes an axial pipe section and a radial pipe section, the axial pipe section of the outer rotor heat pipe has a condensation end of the outer rotor heat pipe, the radial pipe section of the outer rotor heat pipe has an evaporation end of the outer rotor heat pipe, the outer rotor has an annular heat conducting plate, the annular heat conducting plate is located on one side of the inner stator facing the inner end of the motor shaft, the radial pipe section of the outer rotor heat pipe extends along the radial direction of the outer rotor and is in heat conducting contact with the annular heat conducting plate, and the axial pipe section of the outer rotor heat pipe extends axially along the motor shaft to the outside of the motor housing and is located radially inward of the inner side heat radiating fins.
The beneficial effects are that: the outer rotor heat pipe is provided with the evaporation end and the condensation end, so that heat transportation can be conveniently completed by utilizing the phase change principle of the heat pipe, the annular heat conducting plate is arranged, the contact area of the evaporation section of the outer rotor heat pipe and the evaporation section of the outer rotor heat pipe is conveniently and effectively increased, and the heat dissipation performance is improved.
As a further improvement, a heat pipe retainer is fixedly arranged on one side of the annular heat conduction plate facing the inner stator, a plurality of radial extension grooves are arranged on the heat pipe retainer, the radial extension grooves extend along the radial direction of the outer rotor and are distributed at intervals along the circumferential direction of the outer rotor, and radial pipe sections of the outer rotor heat pipes are positioned in the radial extension grooves.
The beneficial effects are that: the heat pipe retainer is provided with a plurality of radial extending grooves which are in one-to-one correspondence with the radial pipe sections of the outer rotor, so that the heat pipes of the inner stator can be conveniently installed.
As a further improvement, a connecting shaft sleeve is arranged between the motor shell and the bearing structure, the connecting shaft sleeve is positioned on one side of the inner stator facing the inner end of the motor shaft, the connecting shaft sleeve, the motor shell and the heat pipe retainer are fixedly assembled, a second mounting groove is arranged on the outer peripheral surface of the connecting shaft sleeve, the second mounting groove of the connecting shaft sleeve axially extends along the connecting shaft sleeve and is uniformly distributed along the connecting shaft sleeve at intervals, and axial pipe sections of the outer rotor heat pipes are positioned in the second mounting groove.
The beneficial effects are that: a connecting shaft is arranged between the motor shell and the bearing structure, and a second mounting groove corresponding to the axial pipe section of the outer rotor heat pipe is arranged on the connecting shaft sleeve, so that the motor shell is supported conveniently and the outer rotor heat pipe is mounted conveniently.
As a further improvement, the inner side heat dissipation fins are fixedly sleeved outside the connecting shaft sleeve so as to be fixedly assembled with the motor shell.
The beneficial effects are that: the radiating fins are sleeved outside the connecting shaft, so that heat transfer between the connecting shaft and the radiating fins is convenient to realize.
As a further improvement, a heat-conducting bearing for conducting heat is arranged between the motor shaft and the connecting shaft sleeve.
The beneficial effects are that: the stable connection shaft sleeve that supports and the heat transfer that realizes of being convenient for.
Drawings
Fig. 1 is a schematic partial structure view of a wheel provided with an in-wheel motor according to the present invention;
FIG. 2 is a schematic structural view of the connecting bushing of FIG. 1;
FIG. 3 is a view from direction D-D of FIG. 1;
FIG. 4 is a cross-sectional view of the motor shaft of FIG. 1;
FIG. 5 is a front view of the heat pipe holder of FIG. 1;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a schematic structural diagram of the heat pipe in FIG. 1;
fig. 8 is a cross-sectional view B-B of fig. 7.
Description of reference numerals:
1. an outer end cover of the motor; 2. a hub; 3. an inner end cover of the motor; 4. a motor housing; 5. an outboard bearing; 51. an inboard bearing; 6. connecting the shaft sleeve; 61 a second mounting groove; 7. a support sleeve; 8. heat-conducting silicone grease; 9. a heat-conducting bearing; 10. inner side heat dissipation fins; 11. a motor shaft; 111. a first mounting groove; 12. an inner stator; 121. a stator winding; 122. a radial mounting groove; 13. an inner stator heat pipe; 14. an outer rotor; 141. an iron core; 142. an annular heat conducting plate; 143. An annular support plate; 15. An outer rotor heat pipe; 16. radial tube sections, 17, axial tube sections. 18. A heat pipe holder; 181. a ring plate; 182. a radially extending slot; 19. an inner stator support frame; 191. an annular mounting plate; 192. and a connecting frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
the wheel hub motor that the wheel that this embodiment provided used, it all sets up radiating fin in the wheel hub motor both sides end cover outside different from among the prior art, leads to corresponding to radiating fin radiating effect of wheel hub cover one side not good and influence whole radiating effect, and the wheel hub motor that provides in this embodiment sets up interior radiating fin in its inboard to transport the heat that outer rotor and inner stator during operation produced to interior radiating fin through the heat pipe, promoted wheel hub motor's heat-sinking capability greatly.
As shown in fig. 1 to 8, the wheel is composed of an in-wheel motor and an in-wheel 2 mounted on the in-wheel motor, the in-wheel 2 is located on the outer side facing away from the in-wheel motor housing 4, and the in-wheel motor drives the in-wheel 2 to rotate around the motor shaft 11, so as to drive the whole wheel to move.
The hub motor specifically comprises a motor shaft 11, the motor shaft 11 is located in the center of the hub motor and used as a supporting shaft of the hub motor to support other parts of the hub motor, the inner end of the motor shaft 11 is used for being connected with an axle or a vehicle body suspension, and the outer end of the motor shaft 11 is used for supporting and mounting the integral structure of the hub motor.
A plurality of first mounting grooves 111 are formed in the motor shaft 11, the plurality of first mounting grooves 111 extend along the radial direction and are uniformly distributed on the circumferential surface of the motor shaft 11, one end of each first mounting groove 111 points to the inner end of the motor shaft 11 and is close to the inner side heat dissipation fin 10, and the inner side heat dissipation fin 10 is sleeved and fixed on the connecting shaft sleeve 6; the other end of the first mounting groove 111 faces away from the inner end of the motor shaft 11 and is located beside the inner stator 12.
An inner stator support frame 19 is arranged at one end of the first mounting groove 111, which is back to the inner side of the motor shaft 11, the inner stator support frame 19 comprises an annular mounting plate 191, the annular mounting plate 191 is sleeved on the motor shaft 11, the inner circumferential surface of the annular mounting plate 19 is fixedly connected with the outer circumferential surface of the motor shaft 11, a plurality of connecting frames 192 are arranged on the outer circumferential side of the annular mounting plate 191, the connecting frames 192 are uniformly distributed at intervals around the circumference of the motor shaft 11, the connecting frames 192 extend along the radial direction of the motor shaft 11, one end of each connecting frame 192, which faces the motor shaft 11, is fixedly connected with the annular mounting plate 191, and one end of each connecting frame 192, which is back to the motor shaft 11, is fixedly connected with the inner stator 12.
The side of each connecting frame 192 facing the inner end of the motor shaft 11 is provided with a radial mounting groove 122, each radial mounting groove 122 extends radially on each connecting frame 192, the bottom of each radial mounting groove 122 corresponds to each first mounting groove 111 on the motor shaft 11 one by one, and is used for mounting the radial pipe section 16 of the inner stator heat pipe 13 to play a role of heat conduction, so that the heat generated by the inner stator 12 is transferred to the inner stator heat pipe 13 through the inner stator support frame 19.
For the present embodiment, the inner stator 12 is rigidly connected to the inner stator support frame 19, and the inner stator 12 and the inner stator support frame 19 are directly contacted to form a whole, and since the stator winding 121 is wound on the inner stator 12, it is inconvenient to form a groove on the inner stator 12 to directly insert the inner stator heat pipe 13 into the inner stator 12, and therefore, the radial mounting groove 122 is formed on the inner stator support frame 19 for placing a radial pipe section of the inner stator heat pipe 13, so as to absorb heat generated on the inner stator 12 and the stator winding 121. Meanwhile, the inner stator support frame 19 and the motor shaft 11 are always in relative rest, so the inner stator support frame 19 is also rigidly connected with the motor shaft 11, and the radial installation groove 122 formed on the inner stator support frame 19 corresponds to the first installation groove 111 formed on the motor shaft 11 to form an L-shaped groove for placing the inner stator heat pipe 13.
As shown in fig. 7 and 8, the inner stator heat pipe 13 is L-shaped as a whole, and the specific structure of the L-shaped heat pipe can refer to the specific structure of the L-shaped heat pipe disclosed in the chinese patent application with publication No. CN112311118A, and specifically includes a radial pipe segment 16 and an axial pipe segment 17, the radial pipe segment 16 and the axial pipe segment 17 are designed as a whole, the radial pipe segment 16 extends radially and is disposed in the radial mounting groove 122 on the inner stator 12, the radial pipe segment 16 is provided with an evaporation end, and fluid is filled in the evaporation end, and the fluid can absorb heat and evaporate into gas, thereby absorbing heat generated when the inner stator 12 works; axial pipe section 17 sets up in the first mounting groove 111 of motor shaft 11 along axial extension, be equipped with the condensation end on the axial pipe section 17, the condensation end is close to inboard radiating fin 10, a gas liquefaction for forming the heat absorption of 16 evaporating ends of radial pipe section is exothermic, and then with heat transfer to on the inboard radiating fin 10, fill heat conduction silicone grease 8 in the gap of inner stator heat pipe 13 and radial mounting groove 122 and first mounting groove 111, carry out further fixed to inner stator heat pipe 13, and heat conduction silicone grease 8 has good heat conductivility, can improve the heat absorption efficiency of inner stator heat pipe 13 to inner stator 12.
In this embodiment, it should be noted that, the inner stator 12 is connected to the motor shaft 11 through the inner stator support frame 19, the motor shaft 11 and the inner stator 12 are kept relatively stationary during the running of the automobile, and there is no circumferential rotation, so that the motor shaft and the inner stator 12 are not affected by centrifugal force, therefore, for the impact vibration generated during the running of the automobile, the heat conductive silicone grease 8 between the radial mounting groove 122 and the radial pipe section of the inner stator heat pipe 13 can fix the radial pipe section, and for the axial pipe section of the inner stator heat pipe 13, the heat conductive silicone grease 8 between the first mounting groove 111 and the axial pipe section of the inner stator heat pipe 13 fixes the axial pipe section.
In addition, the working environment of the inner stator heat pipe 13 is sealed, and no external liquid or dust enters, so that the heat-conducting silicone grease 8 is not polluted, and the working stability of the inner stator heat pipe 13 is ensured.
The inner stator 12 is provided with a stator winding 121 for generating a magnetic field when a current is applied, so that the outer rotor 14 rotates under the action of the magnetic field.
The side of the outer peripheral surface of the inner stator 12 is back to the motor shaft 11 and surrounds the inner stator 12 to be provided with a motor shell 4, the motor shell 4 is specifically of a cylindrical structure, a motor inner end cover 3 is arranged on the cylindrical structure in the direction towards the inner end of the motor shaft 11, a motor outer end cover 1 is arranged on the cylindrical structure in the direction back to the inner end of the motor shaft 11, and the motor inner end cover 3 and the motor outer end cover 1 are respectively in butt joint with the inner side and the outer side of the motor shell 4 and used for wrapping the hub motor.
The outer rotor 14 is arranged on the inner wall of the motor shell 4, the outer rotor 14 is specifically composed of a plurality of iron cores 141, an annular heat conducting plate 142 and an annular supporting plate 143, the iron cores 141 are sequentially and uniformly distributed on the inner wall of the motor shell 4 along the circumferential direction, and the iron cores 141 can rotate around the motor shaft 11 under the action of a magnetic field; one end of the annular supporting plate 143, which faces away from the motor shaft 11, is fixed to the outer end cover 1 of the motor, and the specific fixing mode can adopt modes such as welding and bolt connection, the end of the annular heat conducting plate 122, which faces the motor shaft 11, is installed in cooperation with the supporting shaft sleeve 7 sleeved on the motor shaft 11, an outer side bearing 5 is sleeved between the supporting shaft sleeve 7 and the motor shaft 11, and the outer side bearing 5 is of a bearing structure.
One end of the annular heat conducting plate 142, which is back to the motor shaft 11, is fixedly connected with the inner end cover 3 of the motor, the specific fixing mode can adopt modes such as welding, bolt connection and the like, one end of the annular heat conducting plate 142, which faces the motor shaft 11, is installed in a matching way with the connecting shaft sleeve 6 sleeved on the motor shaft 11, and an inner side bearing 51 and a heat conducting bearing 9 are sleeved at a position between the connecting shaft sleeve 6 and the motor shaft 11, which is close to the inner stator 12.
The connecting shaft sleeve 6 is provided with a plurality of second mounting grooves 61 and inner side radiating fins 10, the second mounting grooves 61 extend radially and are uniformly distributed on the circumferential surface of the connecting shaft sleeve 6, one end of each second mounting groove 61, which points to the inner end of the motor shaft 11, is close to the inner side radiating fins 10, one end of each second mounting groove 61, which faces away from the inner end of the motor shaft 11, is positioned under the annular heat conducting plate 142, and the inner side radiating fins 10 are formed by combining a plurality of metal sheet structures. One end, pointing to the motor shaft 11, of the inner side radiating fin 10 is fixedly connected with the connecting shaft sleeve 6, and one end, back to the motor shaft 11, of the inner side radiating fin 10 is arranged in the air, so that heat can be conveniently transferred to the air.
The annular heat conducting plate 142 is fixed with the heat pipe holder 18, as shown in fig. 5 and 6, the heat pipe holder 18 is specifically an annular plate structure, the circumferential edge of the annular plate 181 pointing to the motor shaft 11 is fixedly connected with the connecting shaft sleeve 6, the circumferential edge of the annular plate 181 facing away from the motor shaft 11 is fixedly connected with the annular supporting plate 143, the annular plate 181 is provided with a plurality of radial extending grooves 182, the plurality of radial extending grooves 182 are uniformly distributed on the circumferential surface of the annular plate 181 in a radial extending manner, one end of each radial extending groove 182 pointing to the motor shaft 11 is connected with one end of the second mounting groove 61 on the connecting shaft sleeve 6, which is located right below the annular heat conducting plate 142, so that the radial extending grooves 182 and the second mounting groove 61 are combined to form a mounting groove of the outer rotor heat pipe 15, and are used for guiding and mounting the outer rotor heat pipe 15.
As shown in fig. 7 and 8, the outer rotor heat pipe 15 is L-shaped as a whole, the specific structure of the outer rotor L-shaped heat pipe is the same as that of the inner stator heat pipe, and specifically includes a radial pipe section 16 and an axial pipe section 17, the radial pipe section 16 and the axial pipe section 17 are designed as a whole, the radial pipe section 16 is extended radially and arranged in a radial extending groove 182 on the heat pipe holder 18, and the heat pipe holder 18 enables the radial pipe section 16 to be in pressing contact with the annular heat conducting plate 142, the radial pipe section 16 is provided with an evaporation end, and fluid is filled in the evaporation end, and can absorb heat and evaporate into gas, so as to absorb heat generated by the outer rotor 14 during operation; axial pipe section 17 sets up in second mounting groove 61 on connecting sleeve 6 along axial extension, be equipped with the condensation end on axial pipe section 17, the condensation end is close to inboard radiating fin 10, a gas liquefaction that is used for forming the heat absorption of radial pipe section 16 evaporation end is exothermic, and then with heat transfer to inboard radiating fin 10 on, fill heat conduction silicone grease 8 in the gap of outer rotor heat pipe 15 and radial extension groove 182 and second mounting groove 61, further fixed is carried out to outer rotor heat pipe 15, and heat conduction silicone grease 8 has good heat conductivility, can improve the heat absorption efficiency of outer rotor heat pipe 15 to outer rotor 14.
When the wheel starts to move, the driving system of the automobile transmits current to the stator winding 121 of the inner stator 12, due to the electromagnetic induction phenomenon of the electrified coil, a magnetic field is generated around the electronic winding 121, so that the outer rotor 14 is placed in the magnetic field, the outer rotor 14 starts to rotate around the motor shaft 11 under the action of the magnetic field, and then the wheel is driven to move, in the moving process of the wheel, heat generated by the inner stator 12 is vaporized and absorbed by fluid at the evaporation end of the inner stator heat pipe 13 through the inner stator support frame 19, then high-temperature gas is liquefied and released heat at the condensation end of the inner stator heat pipe 13, the heat is transmitted to the inner side radiating fins 10 through the motor shaft 11, the heat-conducting bearing 9 and the connecting shaft sleeve 6 in sequence, the heat generated by the outer rotor 14 is transmitted to the annular heat-conducting plate 142 and is vaporized and absorbed by the fluid at the evaporation end of the outer rotor heat pipe 15, and then the high-temperature gas is liquefied and released heat at the condensation end of the outer rotor heat pipe 15, the heat is transferred to the inner side radiating fins 10 through the connecting shaft sleeve 6, and finally the inner side radiating fins 10 transfer the heat to the air in the rotating process, so that the purpose of radiating is achieved.
The wheel provided by the invention is different from the existing wheel hub motor in that the radiating fins are arranged on the inner side and the outer side of the wheel hub motor, and the wheel hub motor is only provided with the inner radiating fins on the inner side of the motor and is combined with the heat pipe for radiating, so that the radiating efficiency is greatly improved.
the present embodiment is different from embodiment 1 mainly in that: in embodiment 1, the motor shaft is provided with a first mounting groove for mounting a radial pipe section of the inner stator heat pipe, in this embodiment, the motor shaft is not provided with the first mounting groove, but an inner shaft sleeve is configured corresponding to the motor shaft, the inner shaft sleeve is coaxially sleeved with the motor shaft, the outer peripheral side of the inner shaft sleeve supports and assembles the motor housing through a bearing, and at this time, the first mounting grooves are uniformly distributed on the peripheral surface of the inner shaft sleeve and used for assembling the axial pipe section of the inner stator heat pipe.
Embodiment 3 of the wheel provided by the present invention:
the present embodiment is different from embodiment 1 mainly in that: in embodiment 1, the inner stator heat pipe is L-shaped, the inner stator is provided with a radial mounting groove, the motor shaft is provided with a first mounting groove, an axial pipe section of the inner stator heat pipe is mounted in the first mounting groove, one end of the axial pipe section, which points to the inner end of the motor shaft, is close to the heat dissipation fins, and a radial pipe section of the inner stator heat pipe is mounted in the radial mounting groove of the inner stator, so that heat generated by the inner stator is transferred to the inner heat dissipation fins sequentially through the motor shaft, the heat conduction bearing and the connecting shaft sleeve. In this embodiment, the inner stator heat pipe has an irregular structure, the vertical radial pipe section in embodiment 1 is changed into an annular radial pipe section, the axial pipe section and the radial pipe section which are transversely arranged are integrally designed, the radial pipe section is located on a plane perpendicular to the axial pipe section, the radial mounting groove on the inner stator is changed from vertical to annular, the annular mounting groove is matched with the radial pipe section of the inner stator heat pipe, and then heat generated by the inner stator is transferred to the inner side heat dissipation fins sequentially through the motor shaft, the heat conduction bearing and the connecting shaft sleeve.
the present embodiment is different from embodiment 1 mainly in that: in embodiment 1, the inner stator support frame is provided with a plurality of radial mounting grooves extending in the radial direction for mounting the radial pipe sections extending in the vertical direction of the inner stator heat pipe. In this embodiment, the radial pipe section of the inner stator heat pipe is arc-shaped, a plurality of arc-shaped mounting grooves are formed in the circumferential surface of each connecting frame facing the inner end of the motor shaft, and the arc-shaped mounting grooves correspond to the first mounting grooves in the motor shaft one to one so as to mount the inner stator heat pipe. The arc-shaped radial pipe section can absorb more heat and accelerate heat dissipation.
Embodiment 5 of the wheel provided by the present invention:
the present embodiment is different from embodiment 1 mainly in that: in embodiment 1, the axial pipe section of the outer rotor heat pipe is installed on the second installation groove of the connection shaft sleeve, and one end of the axial pipe section, which points to the inner end of the motor shaft, is close to the heat dissipation fin. In this embodiment, the outer rotor winding pipe is not assembled on the connecting shaft sleeve any more, the axial pipe section of the outer rotor heat pipe penetrates out from the outer end cover of the motor along the axial direction, and the end of the axial pipe section, which points to the inner end of the motor shaft, is directly and fixedly connected with the heat dissipation fins, so that the heat dissipation efficiency of the outer rotor heat pipe is improved.
the present embodiment is different from embodiment 1 mainly in that: in embodiment 1, the inner stator is fixedly connected to the inner stator support frame, the inner stator support frame is fixedly connected to the motor shaft, the inner stator heat pipe is in heat-conducting contact with the inner stator support frame, and heat generated by the inner stator is transferred to the inner stator heat pipe through the inner stator support frame. In this embodiment, the inner stator has an integral structure including an inner stator body and an inner stator support, the inner stator support is connected to the motor shaft, and at this time, the inner stator heat pipe is in direct heat-conducting contact with the inner stator to absorb heat generated by the inner stator.
The invention also provides an embodiment of the hub motor based on heat pipe radiation, which comprises the following steps:
the structure of the in-wheel motor based on heat pipe heat dissipation in this embodiment is the same as that of the in-wheel motor based on heat pipe heat dissipation in embodiment 1 of the wheel, and details are not repeated here.
Of course, in other embodiments, the structure of the heat pipe radiation-based hub motor in any one of wheel embodiments 2 to 5 may also be adopted for the heat pipe radiation-based hub motor, and will not be described herein again.
Finally, although the present invention has been described in detail 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 in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A wheel hub motor based on heat pipe heat dissipation includes:
the motor comprises a motor shell (4) which is internally provided with an outer rotor (14) and an inner stator (12);
the outer rotor (14) is relatively fixed with the motor shell (4);
the inner stator (12) is coaxially and fixedly assembled with a motor shaft (11), a bearing structure is arranged between the motor shaft (11) and the motor shell (4), and the inner end of the motor shaft (11) is used for being connected with an axle or a vehicle body suspension;
the motor is characterized in that an inner side radiating fin (10) is fixedly arranged on one side of the motor shell (4) facing the inner end of a motor shaft (11);
the in-wheel motor still includes:
the outer rotor heat pipe (15) is arranged corresponding to the outer rotor (14) and fixedly assembled with the outer rotor (14), the outer rotor heat pipe (15) is provided with an evaporation end and a condensation end, the evaporation end of the outer rotor heat pipe (15) is in heat conduction contact with the outer rotor (14) to absorb heat emitted by the outer rotor (14), and the condensation end of the outer rotor heat pipe (15) is in heat conduction contact with the inner side heat radiating fins (10) or is arranged close to the inner side heat radiating fins (10) to transfer the heat to the inner side heat radiating fins (10);
and the inner stator heat pipe (13) is arranged corresponding to the inner stator (12) and is fixedly assembled with the motor shaft (11) and the inner stator (12), the inner stator heat pipe (13) is provided with an evaporation end and a condensation end, the evaporation end of the inner stator heat pipe (13) is used for absorbing heat emitted by the inner stator (12), the inner stator heat pipe (13) extends towards the inner side radiating fin (10) along the motor shaft (11), and the condensation end of the inner stator heat pipe (13) is arranged close to the inner side radiating fin (10) so as to transfer the heat to the inner side radiating fin (10).
2. The in-wheel motor based on heat pipe heat dissipation of claim 1, wherein the outer peripheral surface of the motor shaft (11) is provided with first mounting grooves (111), the first mounting grooves (111) axially extend along the motor shaft (11) and are distributed at least two at intervals along the circumferential direction of the motor shaft (11), and the inner stator heat pipes (13) are correspondingly mounted in the first mounting grooves (111).
3. The in-wheel motor based on heat pipe heat dissipation of claim 2, wherein the inner stator heat pipe (13) is connected with the motor shaft (11) through an inner stator support frame (19), the inner stator support frame (19) is located between the inner stator heat pipe (13) and the motor shaft (11), the inner stator heat pipe (13) is L-shaped, the inner stator heat pipe (13) comprises an axial pipe section (17) and a radial pipe section (16), the axial pipe section (17) of the inner stator heat pipe (13) is provided with a condensation end of the inner stator heat pipe (13), the radial pipe section (16) of the inner stator heat pipe (13) is provided with an evaporation end of the inner stator heat pipe (13), the axial pipe section (17) of the inner stator heat pipe (13) is arranged in the first installation groove (111), the radial pipe section (16) of the inner stator heat pipe (13) extends along the radial direction of the inner stator support frame (19) and is in heat conduction contact with the inner stator support frame (19).
4. The heat pipe heat dissipation based in-wheel motor as claimed in claim 3, wherein the inner stator support bracket (19) is provided with a radial mounting groove (122) at the corresponding side facing the inner end of the motor shaft (11), and the radial pipe section (16) of the inner stator heat pipe (13) is located in the radial mounting groove (122).
5. The heat pipe heat dissipation based in-wheel motor according to any one of claims 1 to 4, wherein the outer rotor heat pipe (15) is L-shaped, the outer rotor heat pipe (15) comprises an axial pipe section (17) and a radial pipe section (16), the axial pipe section (17) of the outer rotor heat pipe (15) has a condensation end of the outer rotor heat pipe (15), the radial pipe section (16) of the outer rotor heat pipe (15) has an evaporation end of the outer rotor heat pipe (15), the outer rotor (14) has an annular heat conduction plate (142), the annular heat conduction plate (142) is located on one side of the inner stator (12) facing the inner end of the motor shaft (11), the radial pipe section (16) of the outer rotor heat pipe (15) extends radially along the outer rotor (14) and is in heat conduction contact with the annular heat conduction plate (142), the axial pipe section (17) of the outer rotor heat pipe (15) extends axially along the motor shaft (11) to the outside of the motor housing (4), and is located radially inward of the inner heat dissipating fins (10).
6. The in-wheel motor based on heat pipe heat dissipation of claim 5, wherein a heat pipe holder (18) is fixedly arranged on one side of the annular heat conducting plate (142) facing the inner stator (12), a plurality of radial extending grooves (122) are arranged on the heat pipe holder (18), the radial extending grooves (182) extend along the radial direction of the outer rotor (14) and are distributed at intervals along the circumferential direction of the outer rotor (14), and the radial pipe sections (16) of the outer rotor heat pipes (15) are positioned in the radial extending grooves (182).
7. The in-wheel motor based on heat pipe heat dissipation of claim 6, wherein a connecting shaft sleeve (6) is arranged between the motor housing (4) and the bearing structure, the connecting shaft sleeve (6) is located on one side of the inner stator (12) facing the inner end of the motor shaft (11), the connecting shaft sleeve (6) is fixedly assembled with the motor housing (4) and the heat pipe retainer (18), a second mounting groove (61) is formed in the outer peripheral surface of the connecting shaft sleeve (6), the second mounting groove (61) of the connecting shaft sleeve (6) axially extends along the connecting shaft sleeve (6) and is uniformly distributed in plurality at intervals along the axial direction of the connecting shaft sleeve (6), and the axial pipe section (17) of the outer rotor (15) is located in the second mounting groove (61).
8. The in-wheel motor based on heat pipe heat dissipation of claim 7, wherein the inner side heat dissipation fins (10) are fixedly sleeved outside the connecting shaft sleeve (6) so as to be fixedly assembled with the motor housing (4).
9. The in-wheel motor based on heat pipe heat dissipation of claim 7, characterized in that a heat conduction bearing (9) for heat conduction is further arranged between the motor shaft (11) and the connecting shaft sleeve (6).
10. A wheel, comprising:
the hub motor is provided with a hub (2);
it is characterized in that the preparation method is characterized in that,
the in-wheel motor is the in-wheel motor based on heat pipe heat dissipation of any one of claims 1 to 9, and the wheel hub (2) is fixedly assembled with a motor shell (4) of the in-wheel motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110892630.4A CN113555995A (en) | 2021-08-04 | 2021-08-04 | Wheel hub motor and wheel based on heat pipe heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110892630.4A CN113555995A (en) | 2021-08-04 | 2021-08-04 | Wheel hub motor and wheel based on heat pipe heat dissipation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113555995A true CN113555995A (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110892630.4A Withdrawn CN113555995A (en) | 2021-08-04 | 2021-08-04 | Wheel hub motor and wheel based on heat pipe heat dissipation |
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| Country | Link |
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| CN (1) | CN113555995A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114785051A (en) * | 2022-06-20 | 2022-07-22 | 沈阳工业大学 | Heat pipe cooling structure of permanent magnet motor and motor |
-
2021
- 2021-08-04 CN CN202110892630.4A patent/CN113555995A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114785051A (en) * | 2022-06-20 | 2022-07-22 | 沈阳工业大学 | Heat pipe cooling structure of permanent magnet motor and motor |
| CN114785051B (en) * | 2022-06-20 | 2022-08-26 | 沈阳工业大学 | Heat pipe cooling structure of permanent magnet motor and motor |
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Application publication date: 20211026 |