CN117439321B - Middle motor assembly for electric motorcycle - Google Patents
Middle motor assembly for electric motorcycle Download PDFInfo
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- CN117439321B CN117439321B CN202311373814.5A CN202311373814A CN117439321B CN 117439321 B CN117439321 B CN 117439321B CN 202311373814 A CN202311373814 A CN 202311373814A CN 117439321 B CN117439321 B CN 117439321B
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- cooling
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 102
- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 238000001816 cooling Methods 0.000 claims abstract description 40
- 239000000110 cooling liquid Substances 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000012546 transfer Methods 0.000 claims description 49
- 230000005540 biological transmission Effects 0.000 claims description 34
- 238000000926 separation method Methods 0.000 claims description 17
- 239000010705 motor oil Substances 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 9
- 239000012153 distilled water Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 3
- 239000002775 capsule Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 10
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000010721 machine oil Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- 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
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention provides a middle motor component for an electric motorcycle, which is applied to the field of motors, wherein a driving mechanism is matched with a liquid cooling heat dissipation mechanism, and wind power generated on the windward side of a middle motor pushes heat dissipation blades to rotate in the running process, so that high-speed rotating air flow is generated between a first heat dissipation fin and the heat dissipation blades, the air flow in a gap of the first heat dissipation fin flows to the heat dissipation blades by using pressure difference, the heat dissipation dead angle is not generated and the heat dissipation efficiency is high under the rotation driving of the driving mechanism, and on the other hand, the driving mechanism is used for driving the circulation and alternate running of cooling liquid in the liquid cooling heat dissipation mechanism, no additional power input is needed, the heat dissipation efficiency of a motor shell is effectively improved, and the service life of the middle motor is further prolonged.
Description
Technical Field
The application relates to the field of motors, in particular to a middle motor assembly for an electric motorcycle.
Background
The traditional engine type motorcycle uses fuel oil as power (also called fuel oil motorcycle), has better power performance, but has the problems of noise, air pollution and the like; the electric motorcycle with the middle drive is adopted, and the battery is used for driving the motor to serve as a power source, so that the electric motorcycle has the advantages of being fast in acceleration, low in noise, low in energy consumption and low in air pollution.
The existing electric motor car mostly adopts a centrally-mounted motor. In the use process, because the electric motorcycle has high mass and high speed requirement, the rotating speed of the middle motor is high, the load is high, and a large amount of heat can be generated. In the riding process of the electric motorcycle, along with the flow of the air flow, one side of the middle motor facing the air flow is quickly taken away by the air flow, and the other side of the middle motor forms a low-pressure area along with the high-speed air flow formed by the air flow passing through the upper surface and the lower surface of the middle motor, so that the air flow speed is low, the heat dissipation is slow, and the continuous work of the middle motor can be negatively influenced.
When the middle heat dissipation is not good and the middle temperature is too high, negative influences can be generated on the performance and the service life of the motor, firstly, the middle insulating material can be aged, oxidized and even embrittled due to the fact that the temperature is too high, so that the insulating performance of the motor is reduced, short circuit is easily generated in the motor, and accidents such as motor damage or fire disaster are easily caused. Secondly, the middle-arranged bearing and bearing seat are also easy to deform and age due to the influence of excessive temperature, so that the operation efficiency of the motor is reduced, in addition, when the middle-arranged motor is overheated, the output power of the motor is also reduced, so that the normal operation of equipment is influenced, and therefore, the middle-arranged motor assembly for the electric motorcycle is provided for solving the problems.
Disclosure of Invention
Compared with the prior art, the application provides a middle motor assembly for an electric motorcycle, which comprises a middle motor, a rotor and a stator, wherein the middle motor comprises a motor shell, a plurality of first radiating fins are arranged at equal intervals on the outer side of the circumference of the motor shell, a driving mechanism for improving the radiating efficiency of the first radiating fins is further arranged on the outer side of the circumference of the motor shell, the driving mechanism is driven by wind power when the motorcycle runs, the driving mechanism comprises two groups of fixed rings rotationally connected to the motor shell, and a plurality of radiating blades are equally distributed and fixed between the two groups of fixed rings;
And a liquid cooling heat dissipation mechanism is further arranged in the motor shell, and the driving mechanism is used for synchronously driving the circulation operation of cooling liquid of the liquid cooling heat dissipation mechanism.
Further, the liquid cooling heat dissipation mechanism comprises a plurality of first heat dissipation strips and second heat dissipation strips which are distributed and arranged at the circumference side of the motor shell at equal angles, the first heat dissipation strips and the second heat dissipation strips are of cavity structures, and one sides of the plurality of first heat dissipation strips and one side of the plurality of second heat dissipation strips are respectively communicated through a communication ring;
The liquid cooling heat dissipation mechanism further comprises side bins symmetrically arranged on two sides of the motor shell, the side bins are communicated by a plurality of oval cavities at first and second ends and are equally distributed at equal angles, spring pieces are arranged in the oval cavities, the side bins are divided into a first partition bin and a second partition bin by the spring pieces, the first partition bin is communicated with a communication ring of the first heat dissipation strip, and the second partition bin is communicated with a communication ring of the second heat dissipation strip.
Further, the first radiating strip and the second radiating strip are flexible bag structures with Z-shaped sections, the first radiating strip and the second radiating strip are arranged at intervals on the circumference side of the motor shell in a staggered mode, one ends of the Z shapes of the first radiating strip and the second radiating strip are arranged in the motor shell, and the other ends of the Z shapes of the first radiating strip and the second radiating strip are all extended into the first radiating fin.
Furthermore, the first radiating strip and the second radiating strip are of heat-conducting silica gel structures, cooling liquid is filled in the first radiating strip and the second radiating strip, the cooling liquid is a mixture of propylene glycol and distilled water, and the mixing ratio of the cooling liquid to the distilled water is nine to four.
Further, the two ends of the spring piece are rotationally connected at the two ends of the corresponding elliptical cavity, sliding gaps are arranged between the two sides of the spring piece and the inner wall of the side bin, elastic sealing films are fixed on the two sides of the spring piece, and the inner side and the outer side of the elastic sealing films are fixedly glued with the inner side and the outer side of the side bin.
Further, the spring piece has the elasticity that is close to oval cavity outside, and the spring piece is magnetic sheet structure, still is fixed with the magnetic stripe that matches with spring piece one in the fixed ring, has magnetic repulsion between magnetic stripe and the spring piece, and magnetic repulsion is greater than the self elasticity of spring piece.
Further, the radiating blades are of a V-shaped structure, the windward end of the middle motor is provided with a V-shaped opening upwards, two sides of the windward end of the motor shell are of a copper structure with radiating efficiency larger than that of the motor shell, the side bin is arranged in the copper structure, and a heat insulation layer is clamped between the copper structure and the motor shell.
Further, a transmission mechanism between the middle motor and the rear wheel of the electric motorcycle is in shaft transmission, the transmission mechanism comprises a driving shaft, two ends of the driving shaft are in power generation with the middle motor and the rear wheel of the electric motorcycle through gear sets, a pipe sleeve is packaged outside the driving shaft and fixed on a frame, a front transmission bin and a rear transmission bin corresponding to the gear sets are respectively arranged at two ends of the pipe sleeve, a sealed space is packaged among the pipe sleeve, the front transmission bin and the rear transmission bin, and engine oil is filled in the sealed space.
Further, a transfer mechanism is arranged on one side of the bottom of the motor shell, a transfer bin is arranged in the transfer mechanism, the input end of the transfer bin is communicated with the front transmission bin, the output end of the transfer bin is communicated with the rear transmission bin, and a spiral blade is fixed on the outer wall of the driving shaft.
Further, one side of the transfer bin is divided into a storage bin through a separation sheet, the separation sheet is of an arc-shaped sheet structure, an air cavity is formed in the bottom of the separation sheet, an elastic magnetic sheet is arranged on the arc-shaped outer side of the separation sheet, the top of the transfer bin is of an arc-shaped structure, the top of the transfer bin on the windward side of the middle motor is higher than the top of the transfer bin on the other side, the elastic magnetic sheet has an elastic force close to the top of the transfer bin, and a magnetic repulsive force is formed between the magnetic strip and the elastic magnetic sheet.
Compared with the prior art, the invention has at least one of the following beneficial effects:
(1) In the operation in-process of put motor, the wind-force that windward side produced promotes radiating vane and takes place to rotate, and then produce the air current of high-speed rotation between first radiating fin and radiating vane, according to Bernoulli's principle, the air current velocity of flow is high and pressure is little, and then make the air current in the first radiating fin clearance utilize pressure difference to flow to the radiating vane side, compare traditional passive heat dissipation, under the rotatory drive of actuating mechanism, can not produce the heat dissipation dead angle and radiating efficiency is high, furthermore, in this embodiment, the most important effect is the hot air current on absorption first radiating strip, second radiating strip surface, thereby promote the radiating efficiency of first radiating fin.
(2) When the radiating blades rotate under the wind power operation generated in the running process of the motorcycle, on one hand, the pressure difference is utilized to discharge hot air on the surface of the first radiating fins, on the other hand, the magnetic strips in the fixing rings rotate synchronously along with the driving mechanism in the rotating process, the magnetic strips generate interval magnetic repulsive force on the spring strips, under the action of the magnetic repulsive force, the spring strips overcome the elasticity of the spring strips and approach to the direction of the first compartment, so that cooling liquid in the first compartment is extruded, enters the first radiating strips communicated with the cooling liquid, and the cooling liquid with lower temperature is utilized to absorb heat on the motor shell and the first radiating fins; simultaneously, in the process that the spring piece is close to the first compartment, negative pressure is generated in the second compartment, cooling liquid in the second heat dissipation strip is adsorbed by utilizing the negative pressure and flows back into the second compartment, the cooling liquid with higher temperature is recovered and cooled, and under the continuous rotation of the heat dissipation blades, the spring piece is subjected to reciprocating tensioning, so that the circulating operation of the cooling liquid in the first heat dissipation strip and the second heat dissipation strip is realized, the heat dissipation efficiency of the motor shell is effectively improved, and the service life of the middle motor is further prolonged.
(3) For clearing up the impurity in the storage storehouse, one side of transfer mechanism still is equipped with the closing cap, for reducing the temperature of engine oil, transfer mechanism's bottom still is equipped with second radiating fin, under the cooperation of drive shaft and helical blade, the engine oil in the airtight space between pipe box, preceding transmission storehouse and back transmission storehouse, promote through helical blade, circulate through transfer mechanism's transfer storehouse, on the one hand reduces the wear and tear degree between the gear train, promote drive mechanism's life-span, on the other hand sequential engine oil carries out the temperature reduction through the second radiating fin when passing through transfer storehouse, reduce the inside operating temperature of drive mechanism in proper order.
(4) Through the design of the storage bin that the separation piece separates out, the rotation of magnetic stripe on the cooperation actuating mechanism, in the rotatory in-process of magnetic stripe, can adsorb the iron fillings that exist in the interior machine oil of transfer bin (the wearing and tearing material that produces when the iron fillings were the gear train operation) and take place the displacement along transfer bin upper wall, when the magnetic stripe moves to the position of elasticity magnetic sheet, the magnetic repulsion that produces can extrude elasticity magnetic sheet and make its downwarping, the upper shed of storage bin is the form of opening this moment, the absorptive impurity of magnetic stripe can get into the storage bin, accomplish the collection of iron fillings in the machine oil, and then reduce the phenomenon of iron fillings continuous wearing and tearing gear train in the machine oil, with this operating life who promotes actuating mechanism.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
FIG. 1 is a schematic view of the installation position of the present application in an electric motorcycle;
FIG. 2 is a schematic diagram of the front structure of the present application;
FIG. 3 is a schematic view of the bottom structure of the present application;
FIG. 4 is a schematic cross-sectional view of the present application;
FIG. 5 is a schematic diagram of a driving mechanism according to the present application;
FIG. 6 is a schematic diagram of a first heat dissipating strip and a second heat dissipating strip according to the present application;
FIG. 7 is a schematic cross-sectional view of a side bin according to the present application;
FIG. 8 is a perspective view of a spring plate and an elastic sealing membrane according to the present application;
FIG. 9 is a schematic view illustrating a rotation direction of a heat dissipating fin according to the present application;
FIG. 10 is a schematic diagram showing the spring leaf in a free state and a stressed state according to the present application;
FIG. 11 is a schematic cross-sectional view of a transmission mechanism according to the present application;
FIG. 12 is an enlarged schematic view of the portion A in FIG. 11;
FIG. 13 is a schematic view of a drive shaft according to the present application;
Fig. 14 is a schematic diagram of the operation state of the transfer mechanism according to the present application.
The reference numerals in the figures illustrate:
In put motor 1, motor housing 11, rotor 12, stator 13, limit storehouse 14, first radiating fin 15, first compartment 141, second compartment 142, insulating layer 16, drive mechanism 2, pipe sleeve 21, drive shaft 22, helical blade 23, front drive storehouse 24, back drive storehouse 25, frame 3, actuating mechanism 4, radiating blade 41, solid fixed ring 42, magnetic stripe 421, transfer mechanism 5, second radiating fin 51, transfer storehouse 52, storage storehouse 53, closing cap 54, liquid cooling radiating mechanism 6, communication ring 601, first radiating strip 61, second radiating strip 62, spring leaf 7, elastic sealing membrane 71, separating sheet 8, air cavity 81, elastic magnetic sheet 82.
Detailed Description
The embodiments of the present application will be described in detail and fully with reference to the accompanying drawings, and it is intended that all other embodiments of the application, which are apparent to one skilled in the art without the inventive faculty, are included in the scope of the present application.
Example 1:
preferred embodiments of the present invention are described in detail below with reference to the attached drawing figures, which form a part of the present invention and are used in conjunction with the embodiments of the present invention to illustrate the principles of the present invention.
The invention discloses a middle motor component for an electric motorcycle, which is mainly applied to the technical problem that the existing middle motor has a heat dissipation dead angle on the leeward surface of the running motorcycle, so that the local heat dissipation efficiency of the middle motor is low.
Referring to fig. 1-5, a central motor assembly for an electric motorcycle includes a central motor 1, the central motor 1 includes a motor housing 11, a rotor 12 and a stator 13 disposed in the motor housing 11, and a plurality of first heat dissipation fins 15 arranged in equal intervals are further disposed on the outer circumference of the motor housing 11, which are all in the prior art and are not described in detail herein;
Referring to fig. 4-5, the motorcycle cooling device further includes a driving mechanism 4 for improving the cooling efficiency of the first cooling fin 15, the driving mechanism 4 is driven by wind force generated when the motorcycle is running, the driving mechanism 4 includes two groups of fixing rings 42 rotatably connected to the motor housing 11, a plurality of cooling blades 41 are equally spaced and fixed between the two groups of fixing rings 42, in fig. 9, in the running process of the middle motor 1, wind force generated on the windward side pushes the cooling blades 41 to rotate, thereby generating high-speed rotating air flow between the first cooling fin 15 and the cooling blades 41, according to the bernoulli principle, the air flow speed is high and the pressure is small, and then the air flow in the gap of the first cooling fin 15 flows to the cooling blades 41 side by using the pressure difference, compared with the traditional passive cooling, under the rotation driving of the driving mechanism 4, no cooling dead angle is generated and the cooling efficiency is high, in this embodiment, the most important function is to adsorb the hot air flow on the surfaces of the first cooling strips 61 and the second cooling strips 62, thereby improving the cooling efficiency of the first cooling fin 15;
referring to fig. 4-7, a liquid cooling heat dissipation mechanism 6 is further disposed in the motor housing 11, and the driving mechanism 4 is configured to synchronously drive the circulation of the cooling liquid of the liquid cooling heat dissipation mechanism 6, where the liquid cooling heat dissipation mechanism 6 includes a plurality of first heat dissipation strips 61 and second heat dissipation strips 62 distributed and arranged at equal angles on the circumference side of the motor housing 11, the first heat dissipation strips 61 and the second heat dissipation strips 62 are all of a cavity structure, and one sides of the plurality of first heat dissipation strips 61 and one side of the plurality of second heat dissipation strips 62 are respectively communicated through a communication ring 601;
The liquid cooling heat dissipation mechanism 6 further comprises side bins 14 symmetrically arranged on two sides of the motor shell 11, the side bins 14 are formed by a plurality of elliptic cavities which are communicated end to end and are equally distributed in an equiangular mode, spring pieces 7 are arranged in the elliptic cavities, the side bins 14 are divided into a first partition bin 141 and a second partition bin 142 by the spring pieces 7, the first partition bin 141 is communicated with a communication ring 601 of the first heat dissipation strip 61, and the second partition bin 142 is communicated with the communication ring 601 of the second heat dissipation strip 62.
Referring to fig. 5-6, in order to facilitate the backflow of the cooling liquid, the first heat dissipation strip 61 and the second heat dissipation strip 62 are flexible capsule structures with Z-shaped cross sections, and when negative pressure is generated in the first compartment 141 or the second compartment 142, the corresponding first heat dissipation strip 61 or the second heat dissipation strip 62 can completely remove the cooling liquid through compression deformation thereof;
In fig. 4, in order to meet the requirement that the first heat dissipation strips 61 and the second heat dissipation strips 62 absorb the motor housing 11 and the first heat dissipation fins 15 at the same time, and simultaneously, in order to meet the requirement that the heat absorption areas of the first heat dissipation strips 61 and the second heat dissipation strips 62 are covered to the greatest extent when the first heat dissipation strips 61 and the second heat dissipation strips 62 alternately run, the first heat dissipation strips 61 and the second heat dissipation strips 62 are alternately arranged at the circumference side of the motor housing 11, one ends of the zigzag shapes of the first heat dissipation strips 61 and the second heat dissipation strips 62 are arranged in the motor housing 11, the other ends of the zigzag shapes of the first heat dissipation strips 61 and the second heat dissipation strips 62 extend into the first heat dissipation fins 15, and in order to improve the heat conduction efficiency between the first heat dissipation strips 61 and the second heat dissipation strips 62 and the motor housing 11, the first heat dissipation strips 61 and the second heat dissipation strips 62 are of heat conduction silica gel structures, cooling liquid is filled in the first heat dissipation strips 61 and the second heat dissipation strips 62, and the cooling liquid is a mixture of propylene glycol and distilled water, and the mixing ratio of the cooling liquid is nine to four.
In fig. 8, two ends of the spring piece 7 are rotatably connected to two ends of the corresponding elliptical cavity, in order to maintain smoothness of the reciprocating operation of the spring piece 7, sliding gaps are provided between two sides of the spring piece 7 and the inner wall of the side bin 14, in order to maintain air tightness between the first compartment 141 and the second compartment 142, elastic sealing films 71 are fixed on two sides of the spring piece 7, and two inner and outer sides of the elastic sealing films 71 are fixedly glued to two inner and outer sides of the side bin 14;
Referring to fig. 10, the spring piece 7 has an elastic force near the outside of the oval cavity, the spring piece 7 is in a magnetic sheet structure, the fixing ring 42 is further fixed with magnetic strips 421 matching with the spring pieces 7 one by one, a magnetic repulsive force is provided between the magnetic strips 421 and the spring pieces 7, and the magnetic repulsive force is greater than the self elastic force of the spring pieces 7.
When the heat radiating blades 41 rotate under the wind power operation generated in the running process of the motorcycle, on one hand, the pressure difference is utilized to discharge the hot air on the surface of the first heat radiating fins 15, on the other hand, the driving mechanism 4 synchronously rotates along with the magnetic strips 421 in the fixed ring 42 in the rotating process, the magnetic strips 421 generate interval magnetic repulsive force on the spring strips 7, under the action of the magnetic repulsive force, the spring strips 7 overcome the self elastic force and approach to the direction of the first compartment 141, so as to squeeze the cooling liquid in the first compartment 141, enter the first heat radiating strips 61 communicated with the cooling liquid, and the cooling liquid with lower temperature is utilized to absorb the heat on the motor shell 11 and the first heat radiating fins 15;
Meanwhile, negative pressure is generated in the second compartment 142 in the process that the spring piece 7 is close to the first compartment 141, cooling liquid in the second cooling strip 62 is adsorbed by the negative pressure and flows back into the second compartment 142, the cooling liquid with higher temperature is recovered and cooled, and under the continuous rotation of the cooling blades 41, the spring piece 7 is tensioned in a reciprocating manner, so that the circulating operation of the cooling liquid in the first cooling strip 61 and the second cooling strip 62 is realized, the cooling efficiency of the motor shell 11 is effectively improved, and the service life of the middle-set motor 1 is further prolonged.
In this embodiment, referring to fig. 9, in order to achieve unidirectional rotation of the driving mechanism 4, keep the rhythm of the reciprocating tension of the spring plate 7, the heat dissipation blades 41 are in a V-shaped structure, at the windward end of the central motor 1, the V-shaped openings of the heat dissipation blades 41 are upward arranged, in order to improve the heat dissipation efficiency of the cooling liquid in the first compartment 141 and the second compartment 142, metals at two sides of the windward end of the motor housing 11 adopt a copper structure with heat dissipation efficiency greater than that of the motor housing 11, the side compartment 14 is arranged in the copper structure, a heat insulation layer 16 is further clamped between the copper structure and the motor housing 11, the heat insulation layer 16 is utilized to insulate heat transfer between the motor housing 11 and the copper structure, and after the cooling liquid with temperature flows back to the side compartment 14, the cooling liquid with high heat conductivity is quickly absorbed by the copper structure, and is matched with side wind during running of the motorcycle, so that the overall temperature of the cooling liquid is reduced, and the temperature of the cooling liquid after the backflow is quickly reduced.
Example 2:
The present invention provides a center motor assembly for an electric motorcycle, please refer to fig. 1-14, wherein the same or corresponding components as those in embodiment 1 are denoted by the corresponding reference numerals as those in embodiment 1, and only the differences from embodiment 1 are described below for the sake of brevity:
Referring to fig. 11, a transmission mechanism 2 between a central motor 1 and rear wheels of an electric motorcycle is in shaft transmission, the transmission mechanism 2 comprises a driving shaft 22, two ends of the driving shaft 22 are in power generation with the central motor 1 and the rear wheels of the electric motorcycle through gear sets, a pipe sleeve 21 is packaged outside the driving shaft 22, the pipe sleeve 21 is fixed on a frame 3, two ends of the pipe sleeve 21 are respectively provided with a front transmission bin 24 and a rear transmission bin 25 corresponding to the gear sets, in order to improve the running smoothness of the gear sets, a closed space is packaged among the pipe sleeve 21, the front transmission bin 24 and the rear transmission bin 25, and engine oil is filled in the closed space.
In fig. 11-14, a transfer mechanism 5 is arranged at one side of the bottom of a motor shell 11, a transfer bin 52 is arranged in the transfer mechanism 5, the input end of the transfer bin 52 is communicated with a front transmission bin 24, the output end of the transfer bin 52 is communicated with a rear transmission bin 25, a helical blade 23 is fixed on the outer wall of a driving shaft 22, one side of the transfer bin 52 is divided into a storage bin 53 through a separation sheet 8, the separation sheet 8 is of an arc-shaped sheet structure, an air cavity 81 is arranged at the bottom of the separation sheet 8, an elastic magnetic sheet 82 is arranged at the arc-shaped outer side of the separation sheet 8, the top of the transfer bin 52 is of an arc-shaped structure, the top of the transfer bin 52 on the windward side of the middle motor 1 is higher than the other side, the elastic magnetic sheet 82 has an elastic force close to the top of the transfer bin 52, and a magnetic repulsive force is formed between the magnetic strip 421 and the elastic magnetic sheet 82.
In order to clean impurities in the storage bin 53, a sealing cover 54 is further arranged on one side of the transfer mechanism 5, a second radiating fin 51 is further arranged at the bottom of the transfer mechanism 5, under the cooperation of the driving shaft 22 and the spiral blade 23, engine oil in a sealed space among the pipe sleeve 21, the front transmission bin 24 and the rear transmission bin 25 is pushed by the spiral blade 23 to circulate through the transfer bin 52 of the transfer mechanism 5, so that on one hand, abrasion among gear sets is reduced, service life of the transmission mechanism 2 is prolonged, and on the other hand, when sequential engine oil passes through the transfer bin 52, temperature is reduced through the second radiating fin 51, and the running temperature inside the transmission mechanism 2 is sequentially reduced.
Through the design of the storage bin 53 separated by the separation sheet 8, the rotation of the magnetic stripe 421 on the driving mechanism 4 is matched, when the magnetic stripe 421 rotates, scrap iron (the abrasion materials generated when the scrap iron is in gear set operation) existing in engine oil in the transfer bin 52 can be adsorbed, displacement occurs along the upper wall of the transfer bin 52, when the magnetic stripe 421 moves to the position of the elastic magnetic sheet 82, the generated magnetic repulsive force can extrude the elastic magnetic sheet 82 to enable the elastic magnetic sheet 82 to bend downwards, at the moment, the upper opening of the storage bin 53 is in an opening state, impurities adsorbed by the magnetic stripe 421 can enter the storage bin 53, the collection of the scrap iron in engine oil is completed, and then the phenomenon that the scrap iron continuously abrades the gear set in engine oil is reduced, so that the service life of the driving mechanism 2 is prolonged.
In this embodiment, in cooperation with the structural design that the air cavity 81 and the middle transfer bin 52 have a high end and a low end, when the engine oil in the middle transfer bin 52 is excessive, the air cavity 81 generates a gradually increased buoyancy in the excessive engine oil, and the storage bin 53 maintains good tightness by utilizing the buoyancy and the elasticity of the separation sheet 8, so that the separation between the storage bin 53 and the middle transfer bin 52 is realized, the dryness of the storage bin 53 is maintained, and the later cleaning is facilitated, wherein the two sides of the separation sheet 8 are sealed, and a film body similar to the elastic sealing film 71 of the spring leaf 7 in embodiment 1 is also adopted for packaging.
The foregoing is merely illustrative of the best modes of carrying out the application in connection with the actual requirements, and the scope of the application is not limited thereto.
Claims (7)
1. The utility model provides a put motor assembly for electric motorcycle, includes put motor (1), put motor (1) and including motor housing (11) and rotor (12), stator (13) of setting in motor housing (11), the circumference outside of motor housing (11) still is equipped with first radiating fin (15) that a plurality of equidistance were arranged, its characterized in that:
the motor vehicle cooling device further comprises a driving mechanism (4) for improving the cooling efficiency of the first cooling fins (15), wherein the driving mechanism (4) is driven by wind power when a motor vehicle runs, the driving mechanism (4) comprises two groups of fixing rings (42) which are rotationally connected to the motor housing (11), and a plurality of cooling blades (41) are equally and uniformly fixed between the two groups of fixing rings (42);
the motor shell (11) is internally provided with a liquid cooling heat dissipation mechanism (6), and the driving mechanism (4) is used for synchronously driving the circulation of cooling liquid of the liquid cooling heat dissipation mechanism (6);
The liquid cooling heat dissipation mechanism (6) comprises a plurality of first heat dissipation strips (61) and second heat dissipation strips (62) which are distributed and arranged on the circumference side of the motor shell (11) at equal angles, the first heat dissipation strips (61) and the second heat dissipation strips (62) are of cavity structures, and one sides of the plurality of first heat dissipation strips (61) and one side of the plurality of second heat dissipation strips (62) are respectively communicated through a communication ring (601);
The liquid cooling heat dissipation mechanism (6) further comprises side bins (14) symmetrically arranged on two sides of the motor shell (11), the side bins (14) are formed by a plurality of elliptic cavities which are communicated end to end and are uniformly distributed at equal angles, spring pieces (7) are arranged in the elliptic cavities, the side bins (14) are divided into a first partition bin (141) and a second partition bin (142) by the spring pieces (7), the first partition bin (141) is communicated with a communication ring (601) of a first heat dissipation strip (61), and the second partition bin (142) is communicated with a communication ring (601) of a second heat dissipation strip (62);
The two ends of the spring piece (7) are rotationally connected to the two ends of the corresponding elliptical cavity, sliding gaps are formed between the two sides of the spring piece (7) and the inner wall of the side bin (14), elastic sealing films (71) are fixed on the two sides of the spring piece (7), and the inner side and the outer side of the elastic sealing films (71) are fixedly glued with the inner side and the outer side of the side bin (14);
The spring piece (7) has the elasticity that is close to oval cavity outside, spring piece (7) are magnetic sheet structure, still be fixed with in fixed ring (42) with spring piece (7) assorted magnetic stripe (421), have magnetic repulsion between magnetic stripe (421) and spring piece (7), and magnetic repulsion is greater than self elasticity of spring piece (7).
2. The middle motor assembly for the electric motorcycle according to claim 1, wherein the first heat dissipation strips (61) and the second heat dissipation strips (62) are flexible capsule structures with Z-shaped sections, the first heat dissipation strips (61) and the second heat dissipation strips (62) are arranged at intervals on the circumference side of the motor shell (11), one ends of the Z-shaped shapes of the first heat dissipation strips (61) and the second heat dissipation strips (62) are arranged in the motor shell (11), and the other ends of the Z-shaped shapes of the first heat dissipation strips (61) and the second heat dissipation strips (62) are all extended into the first heat dissipation fins (15).
3. The middle motor assembly for the electric motorcycle according to claim 2, wherein the first heat dissipation strip (61) and the second heat dissipation strip (62) are of a heat conduction silica gel structure, cooling liquid is filled in the first heat dissipation strip (61) and the second heat dissipation strip (62), and the cooling liquid is a mixture of propylene glycol and distilled water, and the mixing ratio of the cooling liquid is nine to four.
4. The middle motor assembly for the electric motorcycle according to claim 1, wherein the heat dissipation blades (41) are of a V-shaped structure, at the windward end of the middle motor (1), the V-shaped openings of the heat dissipation blades (41) are arranged upwards, the metals at the two sides of the windward end of the motor shell (11) adopt a copper structure with heat dissipation efficiency greater than that of the motor shell (11), the side bin (14) is arranged in the copper structure, and a heat insulation layer (16) is clamped between the copper structure and the motor shell (11).
5. The middle motor assembly for the electric motorcycle according to claim 1, wherein a transmission mechanism (2) between the middle motor (1) and a rear wheel of the electric motorcycle is in shaft transmission, the transmission mechanism (2) comprises a driving shaft (22), two ends of the driving shaft (22) are in power generation with the middle motor (1) and the rear wheel of the electric motorcycle through a gear set, a pipe sleeve (21) is packaged outside the driving shaft (22), the pipe sleeve (21) is fixed on a frame (3), a front transmission bin (24) and a rear transmission bin (25) corresponding to the gear set are respectively arranged at two ends of the pipe sleeve (21), and a closed space is packaged among the pipe sleeve (21), the front transmission bin (24) and the rear transmission bin (25), and engine oil is filled in the closed space.
6. The middle motor assembly for the electric motorcycle according to claim 5, wherein a transfer mechanism (5) is arranged on one side of the bottom of the motor housing (11), a transfer bin (52) is arranged in the transfer mechanism (5), an input end of the transfer bin (52) is communicated with the front transmission bin (24), an output end of the transfer bin (52) is communicated with the rear transmission bin (25), and a helical blade (23) is fixed on the outer wall of the driving shaft (22).
7. The middle motor assembly for the electric motorcycle according to claim 6, wherein one side of the transfer bin (52) is divided into a storage bin (53) through a separation sheet (8), the separation sheet (8) is of an arc-shaped sheet structure, an air cavity (81) is arranged at the bottom of the separation sheet (8), an elastic magnetic sheet (82) is arranged on the arc-shaped outer side of the separation sheet (8), the top of the transfer bin (52) is of an arc-shaped structure, the top of the transfer bin (52) on the windward side of the middle motor (1) is higher than the top of the middle motor (52) on the other side, the elastic magnetic sheet (82) has an elastic force close to the top of the transfer bin (52), and a magnetic repulsive force is arranged between the magnetic strip (421) and the elastic magnetic sheet (82).
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| CN202311373814.5A CN117439321B (en) | 2023-10-23 | 2023-10-23 | Middle motor assembly for electric motorcycle |
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| CN117439321A (en) | 2024-01-23 |
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