CN206790272U - Driving motor for electric automobile axle, motor, electric automobile - Google Patents
Driving motor for electric automobile axle, motor, electric automobile Download PDFInfo
- Publication number
- CN206790272U CN206790272U CN201720254790.5U CN201720254790U CN206790272U CN 206790272 U CN206790272 U CN 206790272U CN 201720254790 U CN201720254790 U CN 201720254790U CN 206790272 U CN206790272 U CN 206790272U
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- China
- Prior art keywords
- end cap
- connecting hole
- electric automobile
- motor
- hole
- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model provides a kind of driving motor for electric automobile axle, and the driving motor for electric automobile axle includes axis body and end cap, wherein：The first connection end and second connection end are provided with the axis body, shoulder hole is provided with the axis body, the first connecting hole and the second connecting hole are provided with the shoulder hole, wherein the diameter of the first connecting hole is more than the diameter of the second connecting hole, one end of first connecting hole is close to end cap one end and in the first connection end, the other end of first connecting hole is connected with second connecting hole one end, the other end of second connecting hole runs through second connection end, and spiral groove is provided with first connecting hole；Multiple apertures are provided with the end cap, the aperture is uniformly distributed on end cap, and the connecting hole not through end cap is provided with the end cap, wherein the aperture being distributed on end cap penetrates with the connecting hole being arranged in end cap.The utility model quick heat radiating simple in construction that can realize motor shaft and meet seal request.
Description
Technical field
The utility model is related to the field of cooling of driving motor for electric automobile, in particular to it is a kind of it is hollow, from
The motor shaft design of cooling.
Background technology
Motor due to the presence of various losses, makes temperature constantly raise in use, and such as it can not be entered well
Row cooling, the service life of motor, general all larger, the absolute value of its loss power of power of the motor of electric automobile can be influenceed
Also just big, for normal use, cooling is even more important.
General to be directly entered motor internal using surrounding air and cooled down for open-type electric machine, cold air is by motor
Heat is directly taken away and is rejected in the environment of surrounding.Air mainly has two kinds in the track route of motor internal.One kind is axle
To cold air enters from motor one end, is discharged from the other end.As long as because of one end dress fan, so larger-diameter fan can be filled,
Cooling effect is relatively good, and core structure is compacter.Shortcoming is that draft loss is larger, and the temperature distributing disproportionation along motor axial direction is even,
It is generally used for the less motor of capacity.Another kind is that radially, cold air enters from both ends, is discharged from the radial ducts of iron core.
Its shortcoming is due to that both ends are intended to fill fan, therefore the external diameter of fan can only be less than the external diameter of rotor, limit the ability of fan, and
Radial ventilation groove is needed, makes motor size bigger.
For enclosed motor, the flowing of air is similar with open-type in casing.Enclosed motor and open-type electric machine
It is to need the hot-air in casing and extraneous cold medium during enclosed motor cooling in place of the maximum difference of the type of cooling
Heat exchange, the most frequently used medium is air, next to that water.When doing cooling medium with air, generally with the exogenous wind with motor coaxle
Fan drives outside air to produce blast；Such as use water cooling, then need with Special water pump come driving cycle chilled water in cooling water tank
Circulation cools down to the hot-air in casing.
Can not temperature in directly cooled machine but be directly entered using surrounding air by the way of motor internal is cooled down
Highest axis part；If motor is carried out by the way of the cold medium heat exchange of hot-air and the external world in by casing cold
But, although cooling effect is improved, but need install additional water pump, water pump support, water pump controller, cooling water pipe, water tank,
Many annexes such as heat dissipation of water tank fan, the weight of motor in itself is added, improves cost, and consume the energy more, for electricity
Electrical automobile field, it is a technical task that need to improve.
Utility model content
The utility model purpose is to provide a kind of hollow, cooling driving motor for electric automobile axle design certainly, that eliminated
Many annexes of motor cooling system, mitigate weight, reduce cost, save vehicular energy, and can is directly by cooling air
Motor shaft core is sent into, by the forceful action of air stream, the electric automobile driving for reaching the efficiently purpose of cooling motor shaft is electric
Arbor and its processing method.
To reach above-mentioned purpose, the utility model proposes a kind of driving motor for electric automobile axle, the electric automobile driving
Motor shaft includes axis body and end cap, wherein：
The first connection end and second connection end are provided with the axis body, shoulder hole, the rank are provided with the axis body
The first connecting hole and the second connecting hole are provided with terraced hole, wherein the diameter of the first connecting hole is more than the diameter of the second connecting hole,
Close to end cap and in the first connection end, the other end of first connecting hole and second connects for one end of first connecting hole
The connection of hole one end is connect, the other end of second connecting hole runs through second connection end, spiral is provided with first connecting hole
Shape groove；
Multiple apertures are provided with the end cap, the aperture is uniformly distributed on end cap, is provided with not in the end cap
Through the connecting hole of end cap, wherein the aperture being distributed on end cap penetrates with the connecting hole being arranged in end cap.
Further, the aperture on foregoing end cap and the connecting hole not through end cap is cylindrical tangent.
Further, the foregoing aperture being distributed on end cap is 3, and two adjacent apertures uniformly divide in 120 °
It is distributed on end cap.
Further, the foregoing aperture is tapered hole.
Further, diameter of the foregoing aperture on end cap is more than the diameter in the hole tangent with connecting hole.
Further, the direction phase that the rotation direction of the spiral groove set in foregoing shoulder hole rotates forward with motor shaft
Together.
Further, the tangential direction of the aperture on foregoing end cap is identical with the rotation direction of the spiral groove.
Another aspect of the present utility model proposes a kind of motor, and the motor includes foregoing driving motor for electric automobile
Axle.
Another aspect of the present utility model proposes a kind of electric automobile, and the electric automobile is used as driving using foregoing motor
Motor.
Another aspect of the present utility model proposes a kind of processing method of driving motor for electric automobile axle, and methods described is such as
Under：
First connection end and second connection end are set on axis body, shoulder hole is set in axis body, set in the shoulder hole
It is equipped with spiral groove；
Multiple apertures are set on end cap, and aperture is uniformly distributed on end cap, and the company not through end cap is provided with end cap
Hole is connect, the aperture being distributed on end cap penetrates with the connecting hole being arranged in end cap.
From above technical scheme, driving motor for electric automobile axle of the present utility model, after motor shaft starts rotation,
The aperture compress ambient air being arranged on end cap, is admitted air into the spiral groove being arranged in axis body, due to aperture with
Tangent not through the connecting hole of end cap, the air for making to enter in connecting hole produces certain rotary power, into after axis body, sets
In the further turn of air of the spiral groove in axis body through entrance, accelerate, the shoulder hole of whole axis body is washed away along helicoid
Discharged afterwards from the other end of shoulder hole.
The effect of above-mentioned structure be from tapered hole suction air when flowing through the shoulder hole set in motor shaft, no longer
Be it is simple it is straight flow through, but certain rotational pressure is generated with washing away to whole shoulder hole, the presence of spiral groove, greatly
Add flowing time and shoulder hole of the air in shoulder hole greatly washes away area；Due to the shape of aperture being arranged on end cap
Shape and tangential direction, make air slack-off in shoulder hole bore wall flow velocity, wash away pressure increase, this structure is faster, more
Take away 9 Cr 2 steel using electromagnetic heating caused by motor axis center, motor speed is faster, and heat transfer efficiency is higher.
It should be appreciated that as long as all combinations of aforementioned concepts and the extra design described in greater detail below are at this
Sample design it is not conflicting in the case of can be viewed as the disclosure utility model theme a part.In addition, want
Ask the theme of protection all combinations be considered as the disclosure utility model theme a part.
The foregoing and other side of the utility model teaching can be more fully appreciated from the following description with reference to accompanying drawing
Face, embodiment and feature.The feature and/or beneficial effect of other additional aspects such as illustrative embodiments of the present utility model
To be obvious in the following description, or learnt in the practice by the embodiment instructed according to the utility model.
Brief description of the drawings
Accompanying drawing is not intended to drawn to scale.In the accompanying drawings, each identical or approximately uniform group shown in each figure
It can be indicated by the same numeral into part.For clarity, in each figure, not each part is labeled.
Now, by example and the embodiment of various aspects of the present utility model will be described in reference to the drawings, wherein：
Fig. 1 is the structural representation of driving motor for electric automobile axle.
Fig. 2 is the sectional view of the A-A along Fig. 1.
Fig. 3 is the structural representation of motor.
In figure, related number designation implication is following 1, axis body, the 2, first connection end, and 3, aperture, 4, end cap, 5, helical form
Groove, the 6, second connecting hole, 7, second connection end, the 8, first connecting hole, 9, connecting hole, 10, middle casing, 11, drive end bearing bracket, 12,
Rear end cap, 13, passage, 14, fairlead, 15, air cleaner, the 16, second air vent, the 17, second fairlead, 18, air draft
Fan.
Embodiment
In order to know more about technology contents of the present utility model, especially exemplified by specific embodiment and institute's accompanying drawings are coordinated to be described as follows.
Each side of the present utility model is described with reference in the disclosure, shown in the drawings of the implementation of many explanations
Example.It is not intended to cover all aspects of the present utility model for embodiment of the disclosure.It should be appreciated that a variety of structures presented hereinbefore
Think and embodiment, and describe in more detail below those design and embodiment can in many ways in any one
To implement, because design disclosed in the utility model and embodiment are not limited to any embodiment.In addition, this practicality
New disclosed some aspects can be used alone, or with the utility model disclosed in it is otherwise it is any it is appropriately combined come
Use.
A kind of electric automobile, electric automobile are to provide supply of electric power by battery pack and provide the pure of power output by motor
Electric automobile, or distributed-driving electric automobile；Include chassis, vehicle body, traveling structure, batteries, motor, control
Device, wherein：Chassis is connected with traveling structure, and chassis is used to support vehicle body；Vehicle body is arranged at chassis upper, is provided with vehicle body
Driving cabin, batteries, motor and controller；The traveling structure includes wheel hub, such as in the automobile of four-wheel drive, two
Front hub or two rear-wheel hubs are used as driving wheel, drive the traveling of electric automobile, including advance, retreat and turn to；It is described
Vehicle body includes front, ceiling.
In the utility model signified electric automobile can also set more to wheel hub, not with the above and figure
The four-wheel for showing part expression is limitation.
As shown in figure 1, a kind of driving motor for electric automobile axle, the driving motor for electric automobile axle includes axis body 1 and end
Lid 4, wherein：The first connection end 2 and second connection end 7 are provided with the axis body 1, is provided with shoulder hole in the axis body 1, institute
State and the first connecting hole 8 and the second connecting hole 6 are provided with shoulder hole, wherein the diameter of the first connecting hole 8 is more than the second connecting hole 6
Diameter, one end of first connecting hole 8 is close to the one end of end cap 4 and in the first connection end 2, first connecting hole 8
The other end be connected with the one end of the second connecting hole 6, the other end of second connecting hole 6 runs through second connection end 7, described first
Spiral groove 5 is provided with connecting hole 8.
Second connection end 7 is the connecting portion being engaged with speed changer, and the connecting portion is according to parts with matching
It is different, it can be provided a variety of patterns, for example connecting portion and speed changer are using screw thread cooperation, key connection etc., it is different when using
Screw thread can be set during connected mode, on connecting portion or flat key spline is used to realize the connection with speed changer.
As shown in Fig. 2 being provided with multiple apertures 3 on the end cap 4, the aperture 3 is uniformly distributed on end cap 4, described
The connecting hole 9 not through end cap 4 is provided with end cap 4, wherein the aperture 3 being distributed on end cap 4 is arranged at end with described
Connecting hole 9 in lid 4 penetrates.
Aperture 3 on the end cap 4 is cylindrical tangent with the connecting hole 9 not through end cap 4.
As shown in Fig. 2 the aperture 3 being distributed on end cap 4 is 3, two adjacent apertures 3 uniformly divide in 120 °
It is distributed on end cap 4, with this simultaneously, the aperture 3 being distributed on end cap 4 can also be increased or decreased according to actual use situation,
This disclosure satisfy that the demand used.
Aperture 3 is tapered hole, and diameter of the aperture 3 on end cap 4 is more than the diameter in the hole tangent with connecting hole 9, using this
The air-flow that kind structure enables to enter in end cap 4 is compressed, and the gas after compression can quickly wash away shoulder hole, with motor
The heat of axis part.
The rotation direction of the spiral groove 5 set in the shoulder hole is identical with the direction that motor shaft rotates forward, on end cap 4
The tangential direction of aperture 3 is identical with the rotation direction of the spiral groove 5, and the direction of rotation can make the air entered by aperture 3
Quickly by multi-diameter shaft, the effect of cooling can be improved.
As shown in figure 3, according to disclosure of the present utility model, it is also proposed that a kind of motor, including the driving of foregoing electric automobile
Motor shaft, in addition to housing, driving motor for electric automobile axle are arranged in housing, and housing includes the drive end bearing bracket being fixedly connected sequentially
11st, middle casing 10 and rear end cap 12, are wherein provided through the passage 13 of drive end bearing bracket 11 on drive end bearing bracket 11, in passage 13
Fairlead 14 is provided with, one end of the fairlead 14 is arranged in drive end bearing bracket 11, and the other end of fairlead 14 is connected to air
The air for entering motor internal can be filtered, remove the impurity in air, prolong by cleaner 15, the air cleaner 15
The service life of long motor.
The second air vent 16 is provided with rear end cap 12, the second fairlead 17 is provided with second air vent 16, the
One end of two fairleads 17 is arranged in the second ventilation duct, and the other end of the second fairlead 17 is connected with ventilating fan 18, the row
Fan 18 can be taken away the heat in housing by ventilating fan 18, the further temperature for reducing motor shaft, so as to improve electricity
The life-span of machine.
Temperature in above-mentioned electric machine casing is realized by following steps to be cooled down, and air enters motor by air cleaner 15
In housing, the air in housing is taken away the heat in housing by ventilating fan 18 by the second fairlead 17, the air in housing
Enter the inside of motor shaft by the aperture 3 set on the end cap 4 of driving motor for electric automobile axle, air produces through small holes 3
Certain rotary power, into axis body 1, by 5 further turn of spiral groove, acceleration, air washes away entirely along helicoid
Discharged after the shoulder hole of axis body 1 from the other end of shoulder hole.
A kind of processing method of driving motor for electric automobile axle, methods described are as follows：First connection end is set on axis body 1
2 and second connection end 7, shoulder hole is set in axis body 1, spiral groove 5 is provided with the shoulder hole；
Multiple apertures 3 are set on end cap 4, and aperture 3 is uniformly distributed on end cap 4, is provided with end cap 4 not through end cap
4 connecting hole 9, the aperture 3 being distributed on end cap 4 penetrate with the connecting hole 9 being arranged in end cap 4.
The aperture 3 wherein set on end cap 4 is tapered hole, and the diameter positioned at the hole of plane on end cap 4 is more than positioned at end
The diameter in the hole of the lower plane of lid 4.
Along the excircle of end cap 4 every in a 120 ° turns of inclined holes, the center line and end cap 4 of inclined hole on end cap 4
Connecting hole 9 is tangent, is expanded inclined hole into certain taper with tapered bur and taper reamer after the completion of inclined hole, in the lower plane of end cap 4
And the size in the hole that the phase of connecting hole 9 in end cap 4 runs through determines according to the parameter of electric machine.
Motor shaft is made to form a shoulder hole in motor shaft, drawn using spiral broach in the first connecting hole 8 from centre-drilling hole
Go out spiral groove 5；At the same time, the spiral groove 5 in shoulder hole can also be used and realized otherwise, for example, tagger is revolved
Helical form is changed into, by spiral helicine iron plate by being fixedly welded in shoulder hole, enables to meet the requirement used.
From above technical scheme, driving motor for electric automobile axle of the present utility model, after motor shaft starts rotation,
The compress ambient air of aperture 3 being arranged on end cap 4, is admitted air into the spiral groove 5 being arranged in axis body 1, due to small
Hole 3 and the connecting hole 9 not through end cap 4 are tangent, and the air for making to enter in connecting hole 9 produces certain rotary power, into axle
After body 1, air of the spiral groove 5 through the entrance further turn that is arranged in axis body 1, accelerate, washed away entirely along helicoid
Discharged after the shoulder hole of axis body 1 from the other end of shoulder hole.
The effect of above-mentioned structure be from tapered hole suction air when flowing through the shoulder hole set in motor shaft, no longer
Be it is simple it is straight flow through, but certain rotational pressure is generated with washing away to whole shoulder hole, the presence of spiral groove 5,
Considerably increase flowing time and shoulder hole of the air in shoulder hole washes away area；Due to the aperture 3 being arranged on end cap 4
Shape and tangential direction, make air slack-off in shoulder hole bore wall flow velocity, wash away pressure increase, this structure faster,
9 Cr 2 steel using electromagnetic heating caused by motor axis center more is taken away, motor speed is faster, and heat transfer efficiency is higher.
It was found from testing repeatedly, 18KW motor is when doing rated power experiment, using motor of the present utility model
The electric automobile of axle, outer tab is radiated using high pressure fan, heat dissipation capacity is higher by 30%, is 25 degrees Celsius in environment temperature
In the case of continuous work 5 hours, outside motor temperature rise is no more than 10 degrees Celsius, has much surmounted electric automobile professional standard pair
The temperature increase requirement of motor, and there is no any influence to the original waterproof of motor, insulation index.
Although the utility model is disclosed above with preferred embodiment, so it is not limited to the utility model.This reality
With new those of ordinary skill in the art, do not departing from spirit and scope of the present utility model, it is each when that can make
The change and retouching of kind.Therefore, the scope of protection of the utility model is worked as and is defined depending on those as defined in claim.
Claims (9)
- A kind of 1. driving motor for electric automobile axle, it is characterised in that the driving motor for electric automobile axle includes axis body and end cap, Wherein：The first connection end and second connection end are provided with the axis body, shoulder hole, the shoulder hole are provided with the axis body The first connecting hole and the second connecting hole are inside provided with, wherein the diameter of the first connecting hole is more than the diameter of the second connecting hole, it is described One end of first connecting hole is close to end cap and in the first connection end, the other end and the second connecting hole of first connecting hole One end connection, the other end of second connecting hole runs through second connection end, helical form is provided with first connecting hole Groove；Multiple apertures are provided with the end cap, the aperture is uniformly distributed on end cap, be provided with the end cap not through The connecting hole of end cap, wherein the aperture being distributed on end cap penetrates with the connecting hole being arranged in end cap.
- 2. driving motor for electric automobile axle according to claim 1, it is characterised in that aperture on the end cap with it is described Not through end cap connecting hole it is cylindrical tangent.
- 3. driving motor for electric automobile axle according to claim 1 or 2, it is characterised in that described to be distributed on end cap Aperture is 3, and two adjacent apertures are uniformly distributed on end cap in 120 °.
- 4. driving motor for electric automobile axle according to claim 3, it is characterised in that the aperture is tapered hole.
- 5. driving motor for electric automobile axle according to claim 4, it is characterised in that diameter of the aperture on end cap More than the diameter in the hole tangent with connecting hole.
- 6. driving motor for electric automobile axle according to claim 2, it is characterised in that the spiral set in the shoulder hole The rotation direction of shape groove is identical with the direction that motor shaft rotates forward.
- 7. driving motor for electric automobile axle according to claim 6, it is characterised in that the tangent line of the aperture on the end cap Direction is identical with the rotation direction of the spiral groove.
- 8. a kind of motor, it is characterised in that the motor is included described in claim 1 to claim 6 any claim Driving motor for electric automobile axle.
- 9. a kind of electric automobile, it is characterised in that the motor that the electric automobile is included described in claim 8 is electric as driving Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720254790.5U CN206790272U (en) | 2017-03-16 | 2017-03-16 | Driving motor for electric automobile axle, motor, electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720254790.5U CN206790272U (en) | 2017-03-16 | 2017-03-16 | Driving motor for electric automobile axle, motor, electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206790272U true CN206790272U (en) | 2017-12-22 |
Family
ID=60704008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720254790.5U Expired - Fee Related CN206790272U (en) | 2017-03-16 | 2017-03-16 | Driving motor for electric automobile axle, motor, electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206790272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877558A (en) * | 2017-03-16 | 2017-06-20 | 芜湖华炬电动汽车技术有限公司 | The processing method of driving motor for electric automobile axle, motor, electric automobile and driving motor for electric automobile axle |
-
2017
- 2017-03-16 CN CN201720254790.5U patent/CN206790272U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877558A (en) * | 2017-03-16 | 2017-06-20 | 芜湖华炬电动汽车技术有限公司 | The processing method of driving motor for electric automobile axle, motor, electric automobile and driving motor for electric automobile axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191113 Address after: No.27, Nanjing Street, Haiyang Development Zone, Yantai, Shandong Patentee after: Shandong new Watt Power Technology Co.,Ltd. Address before: 241006 building E, building 302-A, Jiangbei industrial concentration area, Wuhu, Anhui Patentee before: WUHU HUAJU ELECTRIC VEHICLE TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210113 Address after: 065000 No.2 Yaohua Road, Langfang Economic and Technological Development Zone, Hebei Province Patentee after: Hebei Hengtai new energy equipment Co.,Ltd. Address before: 265100 No.27 Nanjing Street, Haiyang Development Zone, Yantai City, Shandong Province Patentee before: Shandong new Watt Power Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |