CN108631512A - Motor and electric vehicle - Google Patents
Motor and electric vehicle Download PDFInfo
- Publication number
- CN108631512A CN108631512A CN201710165117.9A CN201710165117A CN108631512A CN 108631512 A CN108631512 A CN 108631512A CN 201710165117 A CN201710165117 A CN 201710165117A CN 108631512 A CN108631512 A CN 108631512A
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- China
- Prior art keywords
- motor
- shell
- water
- venthole
- proof ventilated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 53
- 239000011148 porous material Substances 0.000 claims abstract description 34
- 239000002274 desiccant Substances 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims description 55
- 239000012528 membrane Substances 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 7
- 239000000565 sealant Substances 0.000 claims description 7
- 230000006378 damage Effects 0.000 abstract description 13
- 238000004804 winding Methods 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 97
- 239000000243 solution Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 230000017525 heat dissipation Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010705 motor oil Substances 0.000 description 4
- 238000009738 saturating Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
-
- 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)
- Motor Or Generator Frames (AREA)
Abstract
The present invention provides a kind of motor and electric vehicles, wherein motor is used for electric vehicle, and motor includes：Shell, it is internal that there is cavity, insulating heat-conductive oil is marked in shell；Motor shaft, motor shaft run through shell；Intercommunicating pore, the space for being connected to cavity and outside motor；And water-proof ventilated device, including shell, shell are provided with the first venthole and at least one second venthole, it is desiccant-filled in shell；Wherein, water-proof ventilated device is connected by the first venthole with intercommunicating pore.Motor provided by the invention is substantially improved heat conduction efficiency, achievees the purpose that reduce winding temperature by injecting insulating heat-conductive oil in shell；It is effective to ensure that motor air pressure inside is balanced with external pressure by the way that water-proof ventilated device is arranged, and the problems such as avoid water inlet, internal rust that motor causes by inside and outside pressure imbalance, oil sealing damage, promotion motor quality and service life.
Description
Technical field
The present invention relates to field of vehicles, in particular to a kind of motor and a kind of electric vehicle.
Background technology
Currently on the market, the motor that electric vehicle uses is as shown in Figure 1, mainly by shell 10 ', motor shaft 20 ', oil sealing 22 '
It being formed with wheel assembly 100 ', usually wheel hub motor or built-in motor, wheel hub motor radiates by air, poor thermal conductivity, in
It sets motor and contacts the hot transmission of progress with aluminum shell by iron core, heat transfer area is small, and radiating condition is limited, long-time heavy load,
Winding heat can not shed in short-term, have and burn motor risk.
In addition, in the market temporarily without airing function motor, and totally enclosed machine or ventilative by lead-out wire is used, according to glass
Meaning ear law and Gay-Lussac's law, it refers to the pressure of perfect gas to have The Ideal-Gas Equation pV=nRT, wherein p, and V is
The volume of perfect gas, n indicates the amount of gaseous matter, and T then indicates that the thermodynamic temperature of perfect gas, R are gas constant.By
For the law it is found that when the amount of gas volume and substance is definite value, the pressure of gas is directly proportional to temperature.In actual life,
When electric vehicle motor manufacture is completed, the amount of the substance of motor inner air and volume are just it has been determined that motor internal pressure at this time
It is related with the internal temperature of motor.When electric vehicle is ridden, motor will generate a large amount of heat during acting, due to motor
Sealing, ventilative even across lead-out wire, these heats can not be discharged in time, will cause motor internal temperature it is rapid on
It rises.According to the law, motor temperature rise increases 100k, and motor internal pressure will increase by 0.36 atmospheric pressure (36kpa), air pressure inside
It is unable to reach balance with external pressure, this is very unfavorable to electric engine oil seal 22 ', will accelerate the damage of 22 ' internal grease of electric engine oil seal
Consumption, causes sealing function to decline, waterproof failure, meanwhile, under powerful pressure, the part hot-air inside motor can be from motor
It is discharged between dielectric layers inside and outside cable, when electric vehicle stopping is ridden, according to the law, since part hot-air is arranged
Go out, motor inner air amount is caused to reduce, when motor temperature drops back to room temperature, outside motor air pressure is more than air pressure inside, causes
Steam in air is entered by cable, the oil sealing 22 ' of damage or lead-out wire inside motor, cause motor internal rust, absolutely
Edge layer is destroyed, or even burns machine.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art.
For this purpose, it is an advantage of the invention to provide a kind of motors.
It is a further object of the invention to provide a kind of electric vehicles.
In view of this, a purpose according to the present invention, provides a kind of motor, it is used for electric vehicle, including：Shell,
Inside has cavity, and insulating heat-conductive oil is marked in shell；Motor shaft, motor shaft run through shell；Intercommunicating pore, for be connected to cavity with
The space of outside motor；And water-proof ventilated device, including shell, shell are provided with the first venthole and at least one second ventilation
Hole, it is desiccant-filled in shell；Wherein, water-proof ventilated device is connected by the first venthole with intercommunicating pore.
Motor provided by the invention, on the one hand, by injecting insulating heat-conductive oil in shell so that a machine winding part
It is immersed in insulating heat-conductive oil, compared with conventional motors are by air heat dissipation, since the heat transfer coefficient of insulating heat-conductive oil is more than
Machine winding internal heat can be rapidly transferred to shell by air heat transfer coefficient by oil medium, compared to outside iron core and aluminium
Shell contact heat dissipation, heat exchange area increases, and to which heat dissipation area be substantially improved, to which heat conduction efficiency be substantially improved, improves existing
Radiate defect, achievees the purpose that reduce winding temperature, protects the normal work of component, prevents the work of motor heavy load from causing
Burnout problems, promote motor working efficiency and service life.After oil cooling, motor winding temperature rise reduces by 50% or more.
On the other hand, the airing function of motor is realized by the first venthole of water-proof ventilated device and the second venthole,
It is effective to ensure that motor air pressure inside is balanced with external pressure, avoid the oil sealing sealing failure of motor；So far, gas concentrate from
Water-proof ventilated device passes in and out motor, by the way that drier is arranged in water-proof ventilated device, realizes the gas to passing in and out motor
It is dry, so that motor is had water-proof function, the water inlet that causes by inside and outside pressure imbalance so as to avoid motor, internal rust, oil
The problems such as envelope damage, promote motor quality and service life.Specifically, using water-proof ventilated device (band drier) dry air
Mode, when motor internal pressure is big, inner air is gone out via the-the second venthole of the first venthole-drier；Inside motor
Pressure hour, extraneous air enter motor via the-the first venthole of the second venthole-drier.No matter motor is in hot and goes back
It is cold conditions, motor inner and outer air pressure is rapidly reached balance, will not form pressure difference, and in entire exchange process, air is obtained for
It is dried, there is waterproof and breathable effect.In addition, the optimization heat exchange that insulating heat-conductive oil is brought reduces the temperature inside motor,
Pressure difference when helping to reduce hot inside and outside motor reduces the air and steam of disengaging motor, alleviates water-proof ventilated device
Work load.
In addition, can also have following additional technical feature according to the motor in above-mentioned technical proposal provided by the invention：
In the above-mentioned technical solutions, it is preferable that shell includes body and shell cover, and shell cover is removably mounted on body.
In the technical scheme, detachable between shell cover and body, the convenient drier to enclosure carries out periodically more
Change, avoid being used for a long time, drier fail the problems such as.
In any of the above-described technical solution, it is preferable that shell cover is equipped at least one second venthole；Water-proof ventilated device
Further include waterproof ventilated membrane, is folded between body and shell cover.
In the technical scheme, second venthole can be set in shell cover, multiple second ventholes can also be set, it can
To be arranged as required to suitable air permeability；Waterproof ventilated membrane is set between body and shell cover, not only ensure that it is smooth ventilative, but also
It can further stop steam, cross the impurity in air filtering.Preferably, waterproof ventilated membrane is made by materials such as TPU, PTFE.
In any of the above-described technical solution, it is preferable that intercommunicating pore is located in motor shaft, including the first hole section being connected and
Second hole section, the first hole section extend along the length direction of motor shaft, and the second hole section is radially extended along motor shaft；Motor shaft with it is anti-
The joint face of water gas permeable devices is equipped with fluid sealant.
In the technical scheme, by being arranged intercommunicating pore on motor shaft, intercommunicating pore, which can be horizontal, can also be
It is inclined so that gas passes in and out shell via motor shaft and water-proof ventilated device, and the waterproof and breathable function of motor may be implemented, keep away
Exempted from enclosure interior temperature raising, air pressure is excessive, and lead to problems such as destroy electric engine oil seal, also avoid inside electric machine casing into
Water causes the problems such as destroying of getting rusty to electrode.Fluid sealant is set in the junction of motor shaft and water-proof ventilated device, is conducive to reality
The sealed connection of existing motor shaft and water-proof ventilated device, and then can prevent that there are gaps between motor shaft and water-proof ventilated device
And the problem of causing waterproof failure, avoid external moisture from entering in shell through the gap between motor shaft and water-proof ventilated device
Portion damages motor.
In any of the above-described technical solution, it is preferable that further include：Anti- plug cock is connected positioned at intercommunicating pore with the first venthole
One end, anti-plug cock is adapted to intercommunicating pore, and third venthole is provided in anti-plug cock.
In the technical scheme, intercommunicating pore can be used as gas passage and oiling channel simultaneously, it is not necessary to open up individual note again
Oily channel simplifies the structure of motor.It, can be to avoid by the way that bleeder plug is arranged in one end that intercommunicating pore is connected with the first venthole
Insulating heat-conductive oil both ensure that heat-conducting effect from water-proof ventilated device outflow motor, in turn avoid user experience caused by oil leak
It is bad；The third venthole for the small size that cannot lead to oil that can only ventilate is opened up in bleeder plug, it is ensured that ventilative smooth.
In any of the above-described technical solution, it is preferable that further include：Snorkel, one end and the intercommunicating pore of snorkel seal phase
Even, the other end of snorkel is connected with the first vent seal；Intercommunicating pore is arranged on the cable of motor.
In the technical scheme, cable connection enclosure interior and the external world, intercommunicating pore are arranged on cable, snorkel
It is connected to the cable positioned at hull outside, while being connected to water-proof ventilated device so that it is saturating that external gas passes through waterproof successively
Device of air, snorkel, cable enter enclosure interior, while by the drying and dehydrating of drier in water-proof ventilated device, shell
Internal gas also can enter the external world by cable, snorkel and water-proof ventilated device successively, and then realize the anti-of motor
Water airing function avoids motor from getting rusty because of inner inlet damage, also avoids electric machine casing air pressure inside excessive, and destroy shell
The problems such as oil sealing.
In any of the above-described technical solution, it is preferable that it is provided at least one first oil filler point on shell, at least one first
Sealing element is equipped in oil filler point.
In the technical scheme, oil cannot be led to due to that can only ventilate in cable, it is at least one by being opened up on shell
First oil filler point, and corresponding sealing element is set, oiling may be implemented, change oil and seal.The quantity that opens up of first oil filler point can
Setting on demand.
In any of the above-described technical solution, it is preferable that sealing element is sealing screw.
In the technical scheme, setting sealing element is sealing screw so that the dismounting between sealing element and the first oil filler point
It is easier for installation, meanwhile, sealing element is connected through a screw thread with the first oil filler point so that the connection of sealing element and the first oil filler point
It is tighter and securely, it avoids in motor operation course, the seam of the insulating heat-conductive oil of enclosure interior from sealing element and the first oil filler point
Let out in gap and then the structure of outside motor polluted and destroyed, also avoid in motor operation course, sealing element from
It is left out in first oil filler point, causes sealing element to fall other parts to outside motor and damage.Further, in sealing spiral shell
Gasket is set between nail and the first oil filler point.
In any of the above-described technical solution, it is preferable that be provided at least one second oil filler point, water-proof ventilated device on shell
Quantity it is consistent with the second oil filler point, water-proof ventilated device is sealingly mounted at least one second oil filler point.
In the technical scheme, by opening up at least one second oil filler point on shell, and water-proof ventilated device is close
Envelope is mounted in the second oil filler point, using the second oil filler point as intercommunicating pore, it is ensured that insulating heat-conductive oil is not from water-proof ventilated device
And the second gap leakage between oil filler point only need to dismantle lower water-proof ventilated device when needing oiling or changing oil, you can from the
Two oil filler point oilings are changed oil, after installation is complete, since the second oil filler point is smaller, corresponding water-proof ventilated device size also compared with
Small, gas passage therein is only ventable, cannot lead to oil, ensure that insulating heat-conductive oil will not be let out inside water-proof ventilated device
Dew simplifies electric machine structure to which oiling channel to be combined into one with gas passage；Second oil filler point and water-proof ventilated device are straight
It connects and is arranged on shell, it is unrelated with internal structure of motor, it is ensured that internal structure is unaffected；As needed, can be arranged rationally
Aperture and quantity, flexibility it is high.
In any of the above-described technical solution, it is preferable that the outer wall of the first venthole be equipped with external screw thread, the second oil filler point it is interior
Wall is equipped with the internal thread being adapted to therewith；Sealing ring is folded between water-proof ventilated device and shell.
In the technical scheme, the inner wall of the outer wall of the first venthole and the second oil filler point, which is connected through a screw thread, reaches stable
Cooperation, is easily installed, and sandwiched sealing ring so that the connection of water-proof ventilated device and the second oil filler point is tighter and secured, keeps away
Exempt from motor operation course, the gas and insulating heat-conductive oil of enclosure interior are from the gap of water-proof ventilated device and the second oil filler point
It lets out, has both ensured that the structure of outside motor is not contaminated and destroys, in turn ensured waterproof effect, it is thus also avoided that motor operation
In the process, water-proof ventilated device is left out from the second oil filler point, and water-proof ventilated device is caused to fall to outside motor other zero
Part damages.
In any of the above-described technical solution, it is preferable that covering is provided with waterproof ventilated membrane on the second venthole.
In the technical scheme, waterproof ventilated membrane is covered on the second venthole so that extraneous gas is through waterproof ventilated membrane
After filtering, drying agent is further dried, and into enclosure interior, improves the waterproof and breathable effect of motor so that enters shell
The aridity of internal gas is further ensured that.
Another purpose according to the present invention provides a kind of electric vehicle, including：As described in any of the above-described technical solution
Motor.
Therefore motor in electric vehicle provided by the invention, including any of the above-described technical solution has any of the above-described technology
The advantageous effect of scheme, does not repeat one by one herein.Moreover it is preferred that the shell of motor includes end-cap assembly and hub cap component, electricity
Motor-car includes wheel assembly, and wheel assembly, which need to be fixed, is set in hull outside, before assembly, end-cap assembly and wheel assembly it
Between, need between hub cap component and wheel assembly to apply fluid sealant, form sealing so that the wheel assembly of electric vehicle can preferably with
Shell connects, and with the operation of motor, housing into rotation, and then drive wheel assembly rotation avoids poorly sealed, and makes steam
Into gap, wheel assembly is caused to connect unsteady problem with shell.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 shows electric machine structure schematic diagram in the related technology；
Fig. 2 shows the electric machine structure schematic diagrames of one embodiment of the present of invention；
Fig. 3 shows the electric machine structure schematic diagram of an alternative embodiment of the invention；
Fig. 4 shows the structural schematic diagram of water-proof ventilated device of the present invention in the corresponding embodiments of Fig. 2 and Fig. 3；
Fig. 5 shows the electric machine structure schematic diagram of yet another embodiment of the present invention；
Fig. 6 shows partial enlarged views of the Fig. 5 in the portions A of further embodiment of the present invention.
Wherein, the correspondence in Fig. 1 between reference numeral and component names is：
10 ' shells, 20 ' motor shafts, 22 ' oil sealings, 100 ' wheel assemblies.
Correspondence in Fig. 2 to Fig. 6 between reference numeral and component names is：
10 shells, 12 first oil filler points, 14 second oil filler points, 20 motor shafts, 22 oil sealings, 30 intercommunicating pores, 32 first hole sections,
34 second hole sections, 40 water-proof ventilated devices, 42 shells, 422 first ventholes, 424 second ventholes, 426 bodies, 428 shell covers,
44 drier, 46 waterproof ventilated membranes, 50 anti-plug cocks, 52 third ventholes, 60 snorkels, 70 cables, 80 sealing screws, 90 is close
Seal, 100 wheel assemblies.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
The motor described according to some embodiments of the invention and electric vehicle are described referring to Fig. 2 to Fig. 6.
As shown in Figures 2 to 6, the embodiment of first aspect present invention provides a kind of motor, is used for electric vehicle, including：
Shell 10, it is internal that there is cavity, insulating heat-conductive oil is marked in shell 10；Motor shaft 20, motor shaft 20 run through shell 10；Connection
Hole 30, the space for being connected to cavity and outside motor；And water-proof ventilated device 40, including shell 42, shell 42 be provided with
One venthole 422 and at least one second venthole 424, desiccant-filled 44 in shell 42；Wherein, water-proof ventilated device 40 is logical
The first venthole 422 is crossed with intercommunicating pore 30 to be connected.
Motor provided by the invention, on the one hand, pass through the injection insulating heat-conductive oil in shell 10 so that machine winding one
Divide and be immersed in insulating heat-conductive oil, compared with conventional motors are by air heat dissipation, since the heat transfer coefficient of insulating heat-conductive oil is big
In air heat transfer coefficient, machine winding internal heat can be rapidly transferred to shell 10 by oil medium, compared to iron core with
Aluminum shell contact heat dissipation, heat exchange area increases, and to which heat dissipation area be substantially improved, to which heat conduction efficiency be substantially improved, improves
Existing heat dissipation defect achievees the purpose that reduce winding temperature, protects the normal work of component, prevents motor heavy load from working
Caused burnout problems promote motor working efficiency and service life.After oil cooling, motor winding temperature rise reduce by 50% with
On.
On the other hand, the saturating of motor is realized by the first venthole 422 of water-proof ventilated device 40 and the second venthole 424
Airway dysfunction, it is effective to ensure that motor air pressure inside is balanced with external pressure, avoid 22 seal failure of oil sealing of motor；So far,
Gas is concentrated from water-proof ventilated device 40 and passes in and out motor, by the way that drier 44 is arranged in the water-proof ventilated device 40, realizes pair
The drying for passing in and out the gas of motor, makes motor have water-proof function, causes because of inside and outside pressure imbalance so as to avoid motor
The problems such as water inlet, internal rust, oil sealing 22 damage, promotes motor quality and service life.Specifically, using water-proof ventilated device
The mode of 40 (with drier 44) dry airs, when motor internal pressure is big, inner air is dried via the first venthole 422-
The second ventholes of agent 44- 424 are gone out；Motor internal pressure hour, extraneous air is via the second venthole 424- drier 44-
One venthole 422 enters motor.No matter motor is in hot or cold conditions, motor inner and outer air pressure is rapidly reached balance, will not shape
At pressure difference, in entire exchange process, air is obtained for drying process, has waterproof and breathable effect.In addition, insulating heat-conductive
The optimization heat exchange that oil is brought reduces temperature inside motor, pressure difference when helping to reduce hot inside and outside motor, reduce into
The air and steam for going out motor, alleviate the work load of water-proof ventilated device 40.
As shown in figure 4, in one embodiment of the invention, it is preferable that shell 42 includes body 426 and shell cover 428, shell
Lid 428 is removably mounted on body 426.
In this embodiment, detachable between shell cover 428 and body 426, it is convenient to the drier 44 inside shell 42 into
The problems such as row periodic replacement, avoids being used for a long time, and drier 44 fails.
As shown in figure 4, in one embodiment of the invention, it is preferable that shell cover 428 is equipped at least one second and ventilates
Hole 424；Water-proof ventilated device 40 further includes waterproof ventilated membrane 46, is folded between body 426 and shell cover 428.
In this embodiment, second venthole 424 can be set in shell cover 428, multiple second ventilations can also be set
Hole 424 can be arranged as required to suitable air permeability；Waterproof ventilated membrane 46 is set between body 426 and shell cover 428, both
It ensure that smooth ventilative, and can further stop steam, cross the impurity in air filtering.Preferably, waterproof ventilated membrane 46 by
The materials such as TPU, PTFE are made.
As shown in Fig. 2, in one embodiment of the invention, it is preferable that intercommunicating pore 30 is located in motor shaft 20, including phase
The first hole section 32 and the second hole section 34 of connection, the first hole section 32 extend along the length direction of motor shaft 20,34 edge of the second hole section
Motor shaft 20 radially extends；Motor shaft 20 and the joint face of water-proof ventilated device 40 are equipped with fluid sealant.
In this embodiment, by being arranged intercommunicating pore 30 on motor shaft 20, intercommunicating pore 30 can horizontal also may be used
To be inclined so that gas passes in and out shell 10 via motor shaft 20 and water-proof ventilated device 40, and the waterproof of motor may be implemented
Airing function avoids the raising of 10 internal temperature of shell, and air pressure is excessive, and leads to problems such as to destroy electric engine oil seal 22, also avoids
Electric machine casing 10 inner inlet, to electrode cause to get rusty destruction the problems such as.In the company of motor shaft 20 and water-proof ventilated device 40
Place's setting fluid sealant is connect, is advantageously implemented the sealed connection of motor shaft 20 and water-proof ventilated device 40, and then motor can be prevented
There are problems that gap between axis 20 and water-proof ventilated device 40 and cause waterproof failure, avoid external moisture through motor shaft 20 with
Gap between water-proof ventilated device 40 enters inside shell 10, is damaged to motor.
As shown in Figure 2 and Figure 4, in one embodiment of the invention, it is preferable that further include：Anti- plug cock 50 is located at connection
One end that hole 30 is connected with the first venthole 422, anti-plug cock 50 are adapted to intercommunicating pore 30, and third venthole is provided in anti-plug cock 50
52。
In this embodiment, intercommunicating pore 30 can be used as gas passage and oiling channel simultaneously, it is not necessary to open up individual note again
Oily channel simplifies the structure of motor.It, can by the way that bleeder plug is arranged in one end that intercommunicating pore 30 is connected with the first venthole 422
To avoid insulating heat-conductive oil from 40 outflow motor of water-proof ventilated device, heat-conducting effect is both ensure that, caused by turn avoiding oil leak
User experience is bad；The third venthole 52 for the small size that cannot lead to oil that can only ventilate is opened up in bleeder plug, it is ensured that thoroughly
Gas is smooth.
As shown in Figure 3 and Figure 4, in another embodiment of the present invention, it is preferable that further include：Snorkel 60, snorkel
60 one end is connected with the sealing of intercommunicating pore 30, and the other end of snorkel 60 is connected with the sealing of the first venthole 422；Intercommunicating pore 30 is set
It sets on the cable 70 of motor.
In this embodiment, cable 70 is connected to 10 inside of shell and the external world, and intercommunicating pore 30 is arranged on cable 70,
Snorkel 60 is connected to the cable 70 outside shell 10, while being connected to water-proof ventilated device 40 so that external gas
Pass through water-proof ventilated device 40, snorkel 60, cable 70 successively to enter inside shell 10, while passing through water-proof ventilated device 40
The drying and dehydrating of middle drier 44, it is saturating that the gas inside shell 10 also can pass through cable 70, snorkel 60 and waterproof successively
Device of air 40 enters waterproof and breathable function that is extraneous, and then realizing motor, avoids motor from getting rusty because of inner inlet damage, also keeps away
The problems such as it is excessive to exempt from 10 air pressure inside of electric machine casing, and destroys oil sealing 22.
As shown in figure 3, in another embodiment of the present invention, it is preferable that be provided at least one first note on shell 10
Oilhole 12 is equipped with sealing element at least one first oil filler point 12.
In this embodiment, oil cannot be led to due to that can only ventilate in cable 70, by opening up at least one on the housing 10
A first oil filler point 12, and corresponding sealing element is set, oiling may be implemented, change oil and seal.First oil filler point 12 opens up
Quantity can be set on demand.
As shown in figure 3, in another embodiment of the present invention, it is preferable that sealing element is sealing screw 80.
In this embodiment, setting sealing element is sealing screw 80 so that tearing open between sealing element and the first oil filler point 12
Unload it is easier for installation, meanwhile, sealing element is connected through a screw thread with the first oil filler point 12 so that sealing element and the first oil filler point 12
Connection it is tighter and securely, avoid in motor operation course, the insulating heat-conductive oil inside shell 10 is from sealing element and the first note
It lets out in the gap of oilhole 12 and then the structure of outside motor is polluted and destroyed, also avoid motor operation course
In, sealing element is left out from the first oil filler point 12, causes sealing element to fall other parts to outside motor and damages.Into one
Step ground, is arranged gasket between sealing screw 80 and the first oil filler point 12.
As shown in figure 5, in yet another embodiment of the present invention, it is preferable that be provided at least one second note on shell 10
Oilhole 14, the quantity of water-proof ventilated device 40 is consistent with the second oil filler point 14, and water-proof ventilated device 40 is sealingly mounted at least one
In a second oil filler point 14.
In this embodiment, by opening up at least one second oil filler point 14 on the housing 10, and by water-proof ventilated device
40 are sealingly mounted in the second oil filler point 14, using the second oil filler point 14 as intercommunicating pore 30, it is ensured that insulating heat-conductive oil is not from anti-
It is saturating only need to dismantle lower waterproof when needing oiling or changing oil for gap leakage between water gas permeable devices 40 and the second oil filler point 14
Device of air 40, you can from 14 oiling of the second oil filler point or change oil, after installation is complete, since the second oil filler point 14 is smaller, accordingly
40 size of water-proof ventilated device is also smaller, and gas passage therein is only ventable, cannot lead to oil, ensure that insulating heat-conductive oil will not
Electric machine structure is simplified from 40 internal leakage of water-proof ventilated device to which oiling channel to be combined into one with gas passage；Second
Oil filler point 14 and water-proof ventilated device 40 are set up directly on shell 10, unrelated with internal structure of motor, it is ensured that internal structure
It is unaffected；As needed, rational aperture and quantity can be set, and flexibility is high.
As shown in Figure 5 and Figure 6, in yet another embodiment of the present invention, it is preferable that the outer wall of the first venthole 422 is set
There are external screw thread, the inner wall of the second oil filler point 14 to be equipped with the internal thread being adapted to therewith；It is pressed from both sides between water-proof ventilated device 40 and shell 10
Equipped with sealing ring 90.
In this embodiment, the inner wall of the outer wall of the first venthole 422 and the second oil filler point 14, which is connected through a screw thread, reaches
Stablize cooperation, is easily installed, and sandwiched sealing ring 90 so that water-proof ventilated device 40 and the connection of the second oil filler point 14 are tighter
And securely, avoid in motor operation course, the gas and insulating heat-conductive oil inside shell 10 are from water-proof ventilated device 40 and second
It lets out in the gap of oil filler point 14, has both ensured that the structure of outside motor is not contaminated and destroys, in turn ensured waterproof effect,
It also avoids in motor operation course, water-proof ventilated device 40 is left out from the second oil filler point 14, leads to water-proof ventilated device 40
Other parts to outside motor are fallen to damage.
As shown in fig. 6, in yet another embodiment of the present invention, it is preferable that covering is provided with anti-on the second venthole 424
Water ventilated membrane 46.
In this embodiment, waterproof ventilated membrane 46 is covered on the second venthole 424 so that extraneous gas is through waterproof and breathable
After film 46 filters, drying agent 44 is further dried, and into inside shell 10, improves the waterproof and breathable effect of motor, makes
The aridity for obtaining the gas entered in shell 10 is further ensured that.
The embodiment of second aspect of the present invention provides a kind of electric vehicle, including：Electricity as described in above-mentioned any embodiment
Machine.
Therefore motor in electric vehicle provided by the invention, including any of the above-described embodiment has any of the above-described embodiment
Advantageous effect, do not repeat one by one herein.Moreover it is preferred that the shell 10 of motor includes end-cap assembly and hub cap component, such as scheme
2, shown in Fig. 3 and Fig. 5, electric vehicle includes wheel assembly 100, and wheel assembly 100, which need to be fixed, to be set in outside shell 10, is being assembled
Before, it needs to apply fluid sealant between end-cap assembly and wheel assembly 100, between hub cap component and wheel assembly 100, forms sealing, make
Obtaining the wheel assembly 100 of electric vehicle can preferably connect with shell 10, and with the operation of motor, shell 10 rotates, and then band
Driving wheel sub-component 100 rotate, avoid it is poorly sealed, and make steam enter gap, cause wheel assembly 100 to be connect with shell 10
Unsteady problem.
In the present invention, term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " peace
The terms such as dress ", " connected ", " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, it can also
It is to be detachably connected, or be integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.It is right
For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the present invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of motor is used for electric vehicle, which is characterized in that including：
Shell, it is internal that there is cavity, insulating heat-conductive oil is marked in the shell；
Motor shaft, the motor shaft run through the shell；
Intercommunicating pore, the space for being connected to the cavity and the outside motor；And
Water-proof ventilated device, including shell, the shell are provided with the first venthole and at least one second venthole, the shell
In it is desiccant-filled；
Wherein, the water-proof ventilated device is connected by the first venthole with the intercommunicating pore.
2. motor according to claim 1, which is characterized in that
The shell includes body and shell cover, and the shell cover is removably mounted on the body.
3. motor according to claim 2, which is characterized in that
The shell cover is equipped at least one second venthole；
The water-proof ventilated device further includes waterproof ventilated membrane, is folded between the body and the shell cover.
4. motor according to any one of claim 1 to 3, which is characterized in that
The intercommunicating pore is located in the motor shaft, including the first hole section and the second hole section being connected, first hole section edge
The length direction of the motor shaft extends, the second hole section radially extending along the motor shaft；
The joint face of the motor shaft and the water-proof ventilated device is equipped with fluid sealant.
5. motor according to claim 4, which is characterized in that further include：
Anti- plug cock, is located at one end that the intercommunicating pore is connected with first venthole, and the anti-plug cock is suitable with the intercommunicating pore
Match, third venthole is provided in the anti-plug cock.
6. motor according to any one of claim 1 to 3, which is characterized in that further include：
Snorkel, one end of the snorkel are connected with intercommunicating pore sealing, the other end of the snorkel and described first
Vent seal is connected；
The intercommunicating pore is arranged on the cable of the motor.
7. motor according to claim 6, which is characterized in that
It is provided at least one first oil filler point on the shell, sealing element is equipped at least one first oil filler point.
8. motor according to claim 7, which is characterized in that
The sealing element is sealing screw.
9. motor according to claim 1, which is characterized in that
At least one second oil filler point, the quantity of the water-proof ventilated device and second oil filler point one are provided on the shell
It causes, the water-proof ventilated device is sealingly mounted at least one second oil filler point.
10. motor according to claim 9, which is characterized in that
The outer wall of first venthole is equipped with external screw thread, and the inner wall of second oil filler point is equipped with the internal thread being adapted to therewith；
It is folded with sealing ring between the water-proof ventilated device and the shell.
11. motor according to claim 9 or 10, which is characterized in that
Covering is provided with waterproof ventilated membrane on second venthole.
12. a kind of electric vehicle, which is characterized in that including：
Motor as described in any one of claim 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710165117.9A CN108631512B (en) | 2017-03-20 | 2017-03-20 | Motor and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710165117.9A CN108631512B (en) | 2017-03-20 | 2017-03-20 | Motor and electric vehicle |
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| CN108631512A true CN108631512A (en) | 2018-10-09 |
| CN108631512B CN108631512B (en) | 2021-01-26 |
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| CN201710165117.9A Active CN108631512B (en) | 2017-03-20 | 2017-03-20 | Motor and electric vehicle |
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| CN109888978A (en) * | 2019-03-15 | 2019-06-14 | 浙江绿源电动车有限公司 | Oil-cooled motor |
| WO2020109832A1 (en) * | 2018-11-27 | 2020-06-04 | 日産自動車株式会社 | Electric motor unit |
| CN111450668A (en) * | 2020-03-06 | 2020-07-28 | 浙江零跑科技有限公司 | Condensation structure is prevented to electricity drive power assembly |
| CN111525741A (en) * | 2020-05-26 | 2020-08-11 | 重庆永发工业有限公司 | Motor cooling method and high-power double-cooling motor for new energy vehicle |
| CN113153705A (en) * | 2021-04-26 | 2021-07-23 | 贝德凯利电气（深圳）有限公司 | Diaphragm pump with waterproof ventilative structure |
| CN113400889A (en) * | 2021-06-29 | 2021-09-17 | 镇江海姆霍兹传热传动系统有限公司 | Electric vehicle and electric heater, electric cavity and pressure balance structure thereof |
| CN117914061A (en) * | 2024-03-15 | 2024-04-19 | 无锡市华伟车辆厂 | Heat-dissipation and moisture-proof mechanism for motor winding |
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| CN113153705A (en) * | 2021-04-26 | 2021-07-23 | 贝德凯利电气（深圳）有限公司 | Diaphragm pump with waterproof ventilative structure |
| CN113400889A (en) * | 2021-06-29 | 2021-09-17 | 镇江海姆霍兹传热传动系统有限公司 | Electric vehicle and electric heater, electric cavity and pressure balance structure thereof |
| CN117914061A (en) * | 2024-03-15 | 2024-04-19 | 无锡市华伟车辆厂 | Heat-dissipation and moisture-proof mechanism for motor winding |
| CN117914061B (en) * | 2024-03-15 | 2024-05-28 | 无锡市华伟车辆厂 | Heat-dissipation and moisture-proof mechanism for motor winding |
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|---|---|
| CN108631512B (en) | 2021-01-26 |
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Denomination of invention: Electric motor and electric vehicle Effective date of registration: 20230207 Granted publication date: 20210126 Pledgee: Bank of China Limited by Share Ltd. Development Zone Jinhua subbranch Pledgor: ZHEJIANG LUYUAN ELECTRIC VEHICLE Co.,Ltd. Registration number: Y2023330000297 |
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Granted publication date: 20210126 Pledgee: Bank of China Limited by Share Ltd. Development Zone Jinhua subbranch Pledgor: ZHEJIANG LUYUAN ELECTRIC VEHICLE Co.,Ltd. Registration number: Y2023330000297 |
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Denomination of invention: Electric motors and electric vehicles Granted publication date: 20210126 Pledgee: Bank of China Limited by Share Ltd. Development Zone Jinhua subbranch Pledgor: ZHEJIANG LUYUAN ELECTRIC VEHICLE Co.,Ltd. Registration number: Y2024980010933 |
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