CN106130260A - There is the motor of direct-cooled structure - Google Patents
There is the motor of direct-cooled structure Download PDFInfo
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- CN106130260A CN106130260A CN201610649400.4A CN201610649400A CN106130260A CN 106130260 A CN106130260 A CN 106130260A CN 201610649400 A CN201610649400 A CN 201610649400A CN 106130260 A CN106130260 A CN 106130260A
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- Prior art keywords
- stator
- motor
- end cap
- casing
- coolant
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Cooling System (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention belongs to motor and electrical generator fields, a kind of motor with direct-cooled structure of concrete offer.Present invention seek to address that the problem that the heat in motor can not fully be conducted by existing Forced water cooling motor, the motor with direct-cooled structure of the present invention includes the end cap of an end of casing and this casing of closing fitted tightly around stator the outer surface with stator, inner ring member it is provided with between end cap and stator, described end cap, described casing, described stator and described inner ring member is made to be collectively forming toroidal cavity, and be passed through hydraulic oil, and on toroidal cavity, it is provided with inlet and liquid outlet.Hydraulic oil pours in toroidal cavity from inlet, directly contacts with the stator winding of motor, heat-shift, then flows out through liquid outlet, it is thus possible to take the most of heat in motor out of, reduces the temperature rise of motor, enables motor Effec-tive Function.
Description
The application is No. 201610526162.8 of entitled " having the motor of direct-cooled structure " that on July 5th, 2016 submits to
The divisional application of application for a patent for invention.
Technical field
The invention belongs to motor and electrical generator fields, a kind of motor with direct-cooled structure of concrete offer.
Background technology
The range of application of motor is relatively wide, the most in recent years, along with China promotes manufacturing industry transition and upgrade, in various intelligence
In manufacture field, with motor as power and the automaticity of automation equipment that is driven controlling is more and more higher.This
Under trend, the equipment of every profession and trade is more and more higher to the requirement of motor, and such as, efficiency is high, power density is big.But motor is being grown
In the operation process of time, problem of temperature rise often governs the Effec-tive Function of motor, the most also can reduce the use longevity of motor
Life.
In order to ensure motor long-time steady operation, need to control the temperature of motor one reasonably in the range of, mesh
Before, the falling temperature technique being widely adopted has natural cooling, air blast cooling, Forced water cooling etc..Wherein best the surely belonging to of cooling-down effect
Forced water cooling technology, recirculated water is typically passed through motor case by Forced water cooling, takes away the heat that motor produces, thus reaches cooling
The purpose of motor.But motor heat is not fully conducted by Forced water cooling, because the stator winding of motor and casing
The most directly contacting with end cap, there is air centre, and the heat transfer coefficient of air is the lowest, and heat-transfer capability is very poor, and stator winding is only
With stator contact, so its heat can only first be conducted to stator, then it is conducted to the casing of outside by stator, causes motor to work
Time, shell temperature is the highest, but the phenomenon that motor internal temperature is the highest, seriously hinder the Effec-tive Function of motor.
Correspondingly, this area needs a kind of new chiller to solve the problems referred to above.
Summary of the invention
In order to solve the problems referred to above of the prior art, be solution existing Water Cooling Technology cooling motor time can not be by electricity
The problem that the heat of machine fully conducts, the invention provides a kind of motor with direct-cooled structure, and this has direct-cooled structure
Motor include rotating shaft, the rotor being fixed to described rotating shaft, around the stator of described rotor and be coiled on described stator
Stator winding, described motor also includes casing that the outer surface around described stator and with described stator fits tightly and closes institute
State the first end cap of an end of casing, between described first end cap and described stator, be provided with the first inner ring member so that
Described first end cap, described casing, described stator and described first inner ring member are collectively forming first annular cavity, and described first
Toroidal cavity is passed into the first coolant directly to cool down described stator winding.
In the optimal technical scheme of above-mentioned motor, described first inner ring member and described first end cap be integrally formed and
Axially extend to an end of described stator from described first end cap, the most described first inner ring member is close
Feud is against the one end of described stator.
In the optimal technical scheme of above-mentioned motor, described first inner ring member and described stator are integrally formed and from institute
Stating stator shaft orientation and extend to the inner surface of described first end cap, the most described first inner ring member supports hermetically
Inner surface by described first end cap.
In the optimal technical scheme of above-mentioned motor, described first end cap or described casing are provided with the first inlet and
First liquid outlet, described first inlet is for introducing described first annular cavity, described first liquid outlet by the first coolant
For the first coolant is drawn from described first annular cavity.
In the optimal technical scheme of above-mentioned motor, described motor also includes closing the of another end of described casing
Two end caps, are provided with the second inner ring member between described second end cap and described stator so that described second end cap, described machine
Shell, described stator and described second inner ring member are collectively forming the second toroidal cavity, and described second toroidal cavity is also passed into
One coolant is directly to cool down described stator winding.
In the optimal technical scheme of above-mentioned motor, described second inner ring member and described second end cap be integrally formed and
Another end of described stator, the most described second inner ring member is axially extended to from described second end cap
Seal against another end described of described stator.
In the optimal technical scheme of above-mentioned motor, described second inner ring member and described stator are integrally formed and from institute
Stating stator shaft orientation and extend to the inner surface of described second end cap, the most described second inner ring member supports hermetically
Inner surface by described second end cap.
In the optimal technical scheme of above-mentioned motor, described second end cap or described casing are provided with the second inlet and
Second liquid outlet, described second inlet is for introducing described second toroidal cavity, described second liquid outlet by the first coolant
For the first coolant is drawn from described second toroidal cavity.
In the optimal technical scheme of above-mentioned motor, described casing is provided with internal holes, one end of described internal holes with
Described first annular cavity connects, and the other end of described internal holes connects with described second toroidal cavity.
In yet another aspect, the present invention provides a kind of motor with direct-cooled structure, and it includes rotating shaft, is fixed to described turning
The rotor of axle, around the stator of described rotor and be coiled in the stator winding on described stator, described motor also includes cincture
First end cap of one end of described stator the casing fitted tightly with the outer surface of described stator and the described casing of closing,
It is provided with the first inner ring member so that described first end cap, described casing, described fixed between described first end cap and described stator
Sub and described first inner ring member is collectively forming first annular cavity, described first annular cavity be passed into the first coolant so that
Directly cool down described stator winding；Described casing is provided with inner passage and the second cooling connected with described inner passage
Liquid import and the second cooling liquid outlet, described second cooling liquid inlet is for introducing described inner passage, institute by the second coolant
State the second cooling liquid outlet for the second coolant being drawn from described inner passage.
In the optimal technical scheme of above-mentioned motor, described motor also includes closing the of another end of described casing
Two end caps, are provided with the second inner ring member between described second end cap and described stator so that described second end cap, described machine
Shell, described stator and described second inner ring member are collectively forming the second toroidal cavity, and described second toroidal cavity is also passed into
One coolant is directly to cool down described stator winding.
In the optimal technical scheme of above-mentioned motor, described first inner ring member and described first end cap be integrally formed and
Axially extend to an end of described stator from described first end cap, the most described first inner ring member is close
Feud is against the one end of described stator；And/or described second inner ring member and described second end cap one bodily form
Become and axially extend to from described second end cap another end of described stator, in the most described second
Ring element seals against another end described of described stator.
In yet another aspect, the present invention provides a kind of motor with direct-cooled structure, including rotating shaft, is fixed to described rotating shaft
Rotor, around the stator of described rotor and be coiled in the stator winding on described stator, described motor also includes around institute
State the first end cap of an end of stator the casing fitted tightly with the outer surface of described stator and the described casing of closing, institute
State and between the first end cap and described stator, be provided with the first inner ring member so that described first end cap, described casing, described stator
Being collectively forming first annular cavity with described first inner ring member, described first annular cavity is passed into the first coolant so that directly
Connect the described stator winding of cooling；Described motor also includes the second end cap closing another end of described casing, described second
The second inner ring member it is provided with so that described second end cap, described casing, described stator and described between end cap and described stator
Second inner ring member is collectively forming the second toroidal cavity, and described second toroidal cavity is also passed into the first coolant so that the coldest
The most described stator winding；Being provided with internal holes in described casing, one end of described internal holes connects with described first annular cavity,
The other end of described internal holes connects with described second toroidal cavity；And be provided with on described first end cap or described casing into
Liquid mouth, described second end cap or described casing are provided with liquid outlet, and described inlet is described for the first coolant being introduced
First annular cavity, described liquid outlet is for drawing the first coolant from described second toroidal cavity.
In the optimal technical scheme of above-mentioned motor, described first inner ring member and described first end cap be integrally formed and
Axially extend to an end of described stator from described first end cap, the most described first inner ring member is close
Feud is against the one end of described stator；And/or described second inner ring member and described second end cap one bodily form
Become and axially extend to from described second end cap another end of described stator, in the most described second
Ring element seals against another end described of described stator.
It will be appreciated to those of skill in the art that in the inventive solutions, between stator or the end cap of motor
Being provided with inner ring member, casing forms toroidal cavity together with stator, end cap and inner ring member, is used for holding coolant, stator
Winding is immersed directly in coolant, and therefore, the heat that stator winding produces is directly passed to coolant, especially works as coolant
Be recycled for time, it is possible to the temperature rise of motor is greatly lowered, makes motor extremely efficiently run.In other words, by arranging
Coolant is also passed through in toroidal cavity by inner ring member, and " indirect cooling structure " of the prior art is transformed into by the present invention
" direct cooling structure ", cooling effectiveness is improved significantly.
Scheme 1, a kind of motor with direct-cooled structure, the rotor including rotating shaft, being fixed to described rotating shaft, around described turn
Son stator and be coiled in the stator winding on described stator, described motor also include around described stator and with described stator
The casing that fits tightly of outer surface and close first end cap of an end of described casing, it is characterised in that described first
The first inner ring member it is provided with so that described first end cap, described casing, described stator and described between end cap and described stator
First inner ring member is collectively forming first annular cavity, and described first annular cavity is passed into the first coolant directly to cool down
Described stator winding.
Scheme 2, according to the motor with direct-cooled structure described in scheme 1, it is characterised in that described first inner ring member with
Described first end cap is integrally formed and axially extends to an end of described stator from described first end cap, assemble
Under state, described first inner ring member seals against the one end of described stator.
Scheme 3, according to the motor with direct-cooled structure described in scheme 1, it is characterised in that described first inner ring member with
Described stator is integrally formed and extends to from described stator shaft orientation the inner surface of described first end cap, in assembled state
Described first inner ring member seals against the inner surface of described first end cap.
Scheme 4, according to the motor with direct-cooled structure described in scheme 2 or 3, it is characterised in that described first end cap or
Being provided with the first inlet and the first liquid outlet in described casing, described first inlet is described for the first coolant being introduced
First annular cavity, described first liquid outlet is for drawing the first coolant from described first annular cavity.
Scheme 5, according to the motor with direct-cooled structure according to any one of scheme 1 to 4, it is characterised in that described electricity
Machine also includes the second end cap closing another end of described casing, is provided with between described second end cap and described stator
Two inner ring member so that described second end cap, described casing, described stator and described second inner ring member are collectively forming the second ring
Shape cavity, described second toroidal cavity is also passed into the first coolant directly to cool down described stator winding.
Scheme 6, according to the motor with direct-cooled structure described in scheme 5, it is characterised in that described second inner ring member with
Described second end cap is integrally formed and axially extends to another end of described stator from described second end cap, is assembling
State under described second inner ring member seal against another end described of described stator.
Scheme 7, according to the motor with direct-cooled structure described in scheme 5, it is characterised in that described second inner ring member with
Described stator is integrally formed and extends to from described stator shaft orientation the inner surface of described second end cap, in assembled state
Described second inner ring member seals against the inner surface of described second end cap.
Scheme 8, according to the motor with direct-cooled structure described in scheme 6 or 7, it is characterised in that described second end cap or
Being provided with the second inlet and the second liquid outlet in described casing, described second inlet is described for the first coolant being introduced
Second toroidal cavity, described second liquid outlet is for drawing the first coolant from described second toroidal cavity.
Scheme 9, according to the motor with direct-cooled structure described in scheme 8, it is characterised in that described casing is provided with in
Hole, portion, one end of described internal holes connects with described first annular cavity, the other end of described internal holes and described second annular
Cavity connects.
Scheme 10, a kind of motor with direct-cooled structure, the rotor including rotating shaft, being fixed to described rotating shaft, around described
The stator of rotor and be coiled in the stator winding on described stator, described motor also includes around described stator fixed with described
The casing that fits tightly of outer surface of son and close first end cap of an end of described casing, it is characterised in that described the
The first inner ring member it is provided with so that described first end cap, described casing, described stator and institute between one end cap and described stator
Stating the first inner ring member and be collectively forming first annular cavity, described first annular cavity is passed into the first coolant so that the coldest
The most described stator winding；Described casing is provided with inner passage and the second cooling liquid inlet connected with described inner passage
With the second cooling liquid outlet, described second cooling liquid inlet for by second coolant introduce described inner passage, described second
Cooling liquid outlet is for drawing the second coolant from described inner passage.
Scheme 11, according to the motor with direct-cooled structure described in scheme 10, it is characterised in that described motor also include envelope
Close the second end cap of another end of described casing, between described second end cap and described stator, be provided with the second internal ring structure
Part so that described second end cap, described casing, described stator and described second inner ring member are collectively forming the second toroidal cavity,
Described second toroidal cavity is also passed into the first coolant directly to cool down described stator winding.
Scheme 12, according to the motor with direct-cooled structure described in scheme 10 or 11, it is characterised in that described first internal ring
Component and described first end cap are integrally formed and axially extend to an end of described stator from described first end cap, in group
Under the state installed, described first inner ring member seals against the one end of described stator；And/or described
Two inner ring member and described second end cap are integrally formed and axially extend to another of described stator from described second end cap
End, the most described second inner ring member seals against another end described of described stator.
Scheme 13, a kind of motor with direct-cooled structure, the rotor including rotating shaft, being fixed to described rotating shaft, around described
The stator of rotor and be coiled in the stator winding on described stator, described motor also includes around described stator fixed with described
The casing that fits tightly of outer surface of son and close first end cap of an end of described casing, it is characterised in that described the
The first inner ring member it is provided with so that described first end cap, described casing, described stator and institute between one end cap and described stator
Stating the first inner ring member and be collectively forming first annular cavity, described first annular cavity is passed into the first coolant so that the coldest
The most described stator winding；Described motor also includes the second end cap closing another end of described casing, described second end cap
And it is provided with the second inner ring member between described stator so that described second end cap, described casing, described stator and described second
Inner ring member is collectively forming the second toroidal cavity, and described second toroidal cavity is also passed into the first coolant directly to cool down institute
State stator winding；Being provided with internal holes in described casing, one end of described internal holes connects with described first annular cavity, described
The other end of internal holes connects with described second toroidal cavity；And it is provided with feed liquor on described first end cap or described casing
Mouthful, described second end cap or described casing are provided with liquid outlet, described inlet is for introducing described the by the first coolant
One toroidal cavity, described liquid outlet is for drawing the first coolant from described second toroidal cavity.
Scheme 14, according to the motor with direct-cooled structure described in scheme 13, it is characterised in that described first inner ring member
It is integrally formed and axially extends to from described first end cap an end of described stator with described first end cap, assembling
State under described first inner ring member seal against the one end of described stator；And/or in described second
Ring element and described second end cap are integrally formed and axially extend to another end of described stator from described second end cap,
The most described second inner ring member seals against another end described of described stator.
Accompanying drawing explanation
Fig. 1 is the electric machine structure schematic diagram of existing cooling technology.
Fig. 2 is the sectional view of the first embodiment of the motor with direct-cooled structure of the present invention.
Fig. 3 is the sectional view of the second embodiment of the motor with direct-cooled structure of the present invention.
Fig. 4 is the sectional view of the 3rd embodiment of the motor with direct-cooled structure of the present invention.
Detailed description of the invention
The preferred embodiment of the present invention is described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining the know-why of the present invention, it is not intended that limit the scope of the invention.This area skill
It can be made adjustment by art personnel as required, in order to adapts to concrete application scenario.Such as, although description being combine
Hydraulic oil describes, but, the present invention obviously can use other various forms of coolants, as long as this coolant itself is
Electric insulation and the motor components such as stator winding will not be caused corrosion.
It should be noted that in describing the invention, term " " center ", " on ", D score, "left", "right", " vertically ",
The direction of the instruction such as " level ", " interior ", " outward " or the term of position relationship are based on direction shown in the drawings or position relationship, this
It is intended merely to facilitate description rather than instruction or implies that described device or element must have specific orientation, with specifically
Azimuth configuration and operation, be therefore not considered as limiting the invention.Additionally, term " first ", " second ", " the 3rd " only use
In describing purpose, and it is not intended that indicate or hint relative importance.
In addition it is also necessary to explanation, in describing the invention, unless otherwise clearly defined and limited, term " peace
Dress ", should be interpreted broadly " being connected ", " connection ", for example, it may be fix connection, it is also possible to be to removably connect, or integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.To those skilled in the art, can understand that above-mentioned term exists as the case may be
Concrete meaning in the present invention.
As it is shown in figure 1, be the motor cooling of universal architecture in prior art in figure, this motor includes rotating shaft 1, fixes
Rotor 7 in rotating shaft 1, the stator 5 of surrounding rotor 7 and the stator winding 3 being coiled on stator 5, this motor also includes ring
Casing 4 that outer surface around stator 5 and with stator 5 fits tightly and first end cap the 2, second end cap 6 of sealing machine shell 4.At machine
Be provided with inner passage 11 in shell 4, and the two ends of inner passage 11 be provided with water inlet and outlet, this motor pass through into
Low-temperature cooling water is passed through inner passage 11 by the mouth of a river, and is discharged by high-temperature cooling water by outlet.As above in background technology portion
Described in point, the drawback of this type of cooling is, cooling medium does not directly contact with thermal source (stator winding), and cooling effectiveness is relatively low.
As in figure 2 it is shown, the motor with direct-cooled structure of the present invention includes rotating shaft 1, the rotor being fixed in rotating shaft 1
7, the stator 5 of surrounding rotor 7 and the stator winding 3 that is coiled on stator 5, this motor also include around stator 5 and with stator 5
The casing 4 that fits tightly of outer surface and the first end cap 2 and the second end cap 6 of sealing machine shell 4.According to the orientation in Fig. 2, first
End cap 2 is positioned at the left end of casing 4, and the second end cap 6 is positioned at the right-hand member of casing 4.
With continued reference to Fig. 2, the first end cap 2 is provided with the first inner ring member 21, the second end cap 6 is provided with the second internal ring
Component 61 so that the first end cap 2 and the second end cap 6 constitute a closed ring cavity respectively with casing 3 and stator 5: first
Toroidal cavity 9 and the second toroidal cavity 8.Those skilled in the art are it is also contemplated that the first inner ring member 21 can be one
Individually component, it is also possible to be to be integrally formed and extend at the adjacent face of stator 5 with the first end cap 2, it is also possible to be with fixed
Son 5 is integrally formed and extends at the inner surface of the first end cap 2.Second inner ring member 61 can be a single component, also
Can be to be integrally formed and extend at the adjacent face of stator 5 with the second end cap 2, it is also possible to be to be integrally formed also with stator 5
Extend at the inner surface of the second end cap 6.In either case, when assembled, inner ring member 21,61 all with end cap 2,6
Or stator 5 is in sealing contact to form the toroidal cavity sealed.Additionally, between end cap 2,6 and casing 4 and casing 4 and stator 5
Between be also required to be arranged to seal, in order to the coolant in toroidal cavity will not leak out.
With continued reference to Fig. 2, the left end or the first end cap 2 of casing 4 are opened two holes (the first oil-in, first fuel-displaced
Mouthful), the right-hand member or the second end cap 6 of casing 4 are opened two holes (the second oil-in, the second oil-out).First coolant is excellent
Selection of land uses hydraulic oil, enters first annular cavity 9 by the first oil-in, enters the second toroidal cavity by the second oil-in
8, hydraulic oil soaks stator winding 3 parts such as grade and by its heat absorption, is then flowed out by the first oil-out and the second oil-out,
Heat is taken away.Preferably, oil-in is arranged on the lower end of casing 4 or end cap, oil-out is arranged on casing 4 or end cap
Upper end, in order to hydraulic oil can contact with stator winding 3 fully, carries out heat exchange.Those skilled in the art can manage
Solving, the position relationship of oil inlet and outlet is the most unalterable, can be according to concrete working environment and installation environment to turnover
The position of hydraulic fluid port is adjusted.Additionally, those skilled in the art it is also understood that, except hydraulic oil is as cooling medium
Outward, other does not results in corrosion to motor (especially stator winding) and nonconducting fluid media (medium) can serve as cooling and is situated between
Matter.Furthermore, those skilled in the art it is also understood that, the left end of casing 4 mentioned above or right-hand member refer in casing 4 point
Not Dui Yingyu first annular cavity 9 and the transverse section of the second toroidal cavity 8, rather than the portion contacted of casing 4 and end cap 2,6
Point.
Further, it is also possible to arrange internal holes in casing 4, one end of internal holes connects with first annular cavity 9, internal
The other end and second toroidal cavity 8 in hole connect.Specifically, as it is shown on figure 3, the motor with direct-cooled structure of the present invention
Second embodiment includes rotating shaft 1, be fixed in rotating shaft 1 rotor 7, the stator 5 of surrounding rotor 7 and be coiled on stator 5
Stator winding 3, this motor also includes casing 4 and the sealing machine shell fitted tightly around stator 5 outer surface with stator 5
First end cap 2 and second end cap 6 of 4.First end cap 2 is positioned at the left end of casing 4, and the second end cap 6 is positioned at the right-hand member of casing 4.The
It is provided with the first inner ring member 21 on one end cap 2, the second end cap 6 is provided with the second inner ring member 61 so that the first end cap 2 He
Second end cap 6 constitutes a closed ring cavity respectively with casing 3 and stator 5: first annular cavity 9 and the second toroidal cavity
8.Those skilled in the art are it is also contemplated that the first inner ring member 21 can be a single component, it is also possible to be and
One end cap 2 is integrally formed and extends at the adjacent face of stator 5, it is also possible to be to be integrally formed with stator 5 and extend to first
At the inner surface of end cap 2；Second inner ring member 61 can be a single component, it is also possible to be and second end cap 2 one bodily form
Become and extend at the adjacent face of stator 5, it is also possible to being to be integrally formed and extend to the inner surface of the second end cap 6 with stator 5
Place.The inside of first annular cavity 9 and the second toroidal cavity 8 is passed through the first coolant, it is preferable that the first coolant is hydraulic pressure
Oil.
With continued reference to Fig. 3, the left end at the first end cap 2 or casing 4 opens a hole as oil-in, is introduced by hydraulic oil
In first annular cavity 9；Right-hand member at the second end cap 6 or casing 4 opens a hole as oil-out, the hydraulic oil in motor via
This mouth flows out.In casing 4, open an internal holes 10 vertically, connect first annular cavity 9 and the second toroidal cavity 8, formed
The closing stream of one connection.This kind of scheme can efficiently reduce the quantity of external oil pipe, convenient installation.Preferably, will enter,
Oil-out is arranged at the top of casing 4, internal holes 10 is arranged on the bottom of casing 4 be easy to cool down oil can be fully with fixed
Sub-winding 3 contacts, heat-shift.
As shown in Figure 4, the 3rd embodiment of the motor with direct-cooled structure of the present invention includes rotating shaft 1, is fixed to turn
The rotor 7 of axle 1, the stator 5 of surrounding rotor 7 and the stator winding 3 being coiled on stator 5, this motor also includes around stator 5
And the casing 4 that fits tightly with the outer surface of stator 5 and first end cap the 2, second end cap 6 of sealing machine shell 4.First end cap 2
In the left end of casing 4, the second end cap 6 is positioned at the right-hand member of casing 4.The first inner ring member 21, the second end it is provided with on first end cap 2
It is provided with the second inner ring member 61 so that the first end cap 2 and the second end cap 6 constitute one with casing 3 and stator 5 respectively on lid 6
Individual closed ring cavity: first annular cavity 9 and the second toroidal cavity 8.Those skilled in the art are it is also contemplated that in first
Ring element 21 can be a single component, it is also possible to be to be integrally formed and extend to the abutting end of stator 5 with the first end cap 2
At face, it is also possible to be to be integrally formed and extend to stator 5 at the inner surface of the first end cap 2；Second inner ring member 61 can be
One single component, it is also possible to be to be integrally formed and extend at the adjacent face of stator 5 with the second end cap 2, it is also possible to be
At the inner surface that stator 5 was integrally formed and extended to the first end cap 2.First annular cavity 9 and the inside of the second toroidal cavity 8
It is passed through the first coolant, it is preferable that the first coolant is hydraulic oil.
With continued reference to Fig. 4, being provided with inner passage 11, and have two mouths in casing 4, one is water inlet, and one is
Outlet.Outside second coolant is connected with water inlet.Preferably, the second coolant is not for having corrosive cooling water.Electricity
During machine work, first passing through hydraulic oil and the heat on stator winding 3 passes to stator 5 and casing 4, the heat on stator 5 enters one
Step passes to casing 4, then carries out heat exchange by the second coolant flowing through the inner passage 11 in casing 4 with casing 4, enters
One step, high-temperature water is discharged by the second coolant by outlet.
With continued reference to Fig. 4, on the basis of this kind of scheme, the left end or the first end cap 2 of casing 4 open two holes
(oil-in, oil-out), opens two holes (oil-in, oil-out) on the right-hand member or the second end cap 6 of casing 4, in order to circulation
Hydraulic oil, thus motor is cooled down under the dual function of cooling water at hydraulic oil.
Above-mentioned three kinds of embodiments, all by hydraulic oil by between stator winding 3 and motor housing 4 and end cap 2,6
Gap is filled up, and using hydraulic oil as direct heat transmitting medium, than using air as indirect heat transmitting medium, is greatly improved
The efficiency of heat exchange.
So far, describe technical scheme already in connection with preferred implementation shown in the drawings, but, this area
Skill will readily appreciate that, protection scope of the present invention is expressly not limited to these detailed description of the invention.Without departing from this
On the premise of the principle of invention, correlation technique feature can be made change or the replacement of equivalent by those skilled in the art, these
Within technical scheme after changing or replacing it falls within protection scope of the present invention.
Claims (10)
1. there is a motor for direct-cooled structure, the rotor that including rotating shaft, is fixed to described rotating shaft, stator around described rotor
And be coiled in the stator winding on described stator, described motor also include around described stator and with the outer surface of described stator
First end cap of one end of the casing fitted tightly and the described casing of closing,
It is characterized in that, between described first end cap and described stator, be provided with the first inner ring member so that described first end cap,
Described casing, described stator and described first inner ring member are collectively forming first annular cavity, and described first annular cavity is led to
Enter the first coolant directly to cool down described stator winding；
Described casing is provided with inner passage and the second cooling liquid inlet connected with described inner passage and the second cooling
Liquid exports, and described second cooling liquid inlet is for introducing described inner passage, described second cooling liquid outlet by the second coolant
For the second coolant is drawn from described inner passage.
The motor with direct-cooled structure the most according to claim 1, it is characterised in that described motor also includes that closing is described
Second end cap of another end of casing, is provided with the second inner ring member between described second end cap and described stator so that
Described second end cap, described casing, described stator and described second inner ring member are collectively forming the second toroidal cavity, and described second
Toroidal cavity is also passed into the first coolant directly to cool down described stator winding.
The motor with direct-cooled structure the most according to claim 2, it is characterised in that described first end cap and described casing
In one on be provided with the first inlet, another in described first end cap and described casing is provided with first and goes out liquid
Mouthful, described first inlet is for introducing described first annular cavity by the first coolant, and described first liquid outlet is for by the
One coolant is drawn from described first annular cavity.
The motor with direct-cooled structure the most according to claim 3, it is characterised in that described second end cap and described casing
In two on be provided with the second inlet, another in described second end cap and described casing is provided with second and goes out liquid
Mouthful, described second inlet is for introducing described second toroidal cavity by the first coolant, and described second liquid outlet is for by the
One coolant is drawn from described second toroidal cavity.
The motor with direct-cooled structure the most according to any one of claim 1 to 4, it is characterised in that in described first
Ring element and described first end cap are integrally formed and axially extend to an end of described stator from described first end cap,
Under the state assembled, described first inner ring member seals against the one end of described stator.
The motor with direct-cooled structure the most according to any one of claim 1 to 4, it is characterised in that in described second
Ring element and described second end cap are integrally formed and axially extend to another end of described stator from described second end cap,
The most described second inner ring member seals against another end described of described stator.
The motor with direct-cooled structure the most according to claim 5, it is characterised in that described first coolant be have cold
But the hydraulic oil of function.
The motor with direct-cooled structure the most according to claim 6, it is characterised in that described first coolant be have cold
But the hydraulic oil of function.
The motor with direct-cooled structure the most according to claim 5, it is characterised in that described second coolant is cooling
Water.
The motor with direct-cooled structure the most according to claim 6, it is characterised in that described second coolant is cooling
Water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610649400.4A CN106130260A (en) | 2016-07-05 | 2016-07-05 | There is the motor of direct-cooled structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610649400.4A CN106130260A (en) | 2016-07-05 | 2016-07-05 | There is the motor of direct-cooled structure |
| CN201610526162.8A CN106160341A (en) | 2016-07-05 | 2016-07-05 | There is the motor of direct-cooled structure |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610526162.8A Division CN106160341A (en) | 2016-07-05 | 2016-07-05 | There is the motor of direct-cooled structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106130260A true CN106130260A (en) | 2016-11-16 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610526162.8A Pending CN106160341A (en) | 2016-07-05 | 2016-07-05 | There is the motor of direct-cooled structure |
| CN201610649400.4A Pending CN106130260A (en) | 2016-07-05 | 2016-07-05 | There is the motor of direct-cooled structure |
| CN201610649383.4A Pending CN106130259A (en) | 2016-07-05 | 2016-07-05 | There is the motor of direct-cooled structure |
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| CN201610526162.8A Pending CN106160341A (en) | 2016-07-05 | 2016-07-05 | There is the motor of direct-cooled structure |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610649383.4A Pending CN106130259A (en) | 2016-07-05 | 2016-07-05 | There is the motor of direct-cooled structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111106683A (en) * | 2020-01-17 | 2020-05-05 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Compact liquid circulation cooling superconducting motor stator |
| CN111969767A (en) * | 2020-07-13 | 2020-11-20 | 华中科技大学 | Motor cooling system and motor |
| CN112186918A (en) * | 2019-07-01 | 2021-01-05 | 保时捷股份公司 | Assembly for cooling an electric machine in a motor vehicle and method for operating the assembly |
| CN113394909A (en) * | 2021-06-28 | 2021-09-14 | 威海西立电子有限公司 | Motor and cooling method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108696039B (en) * | 2018-05-31 | 2020-05-05 | 安徽江淮汽车集团股份有限公司 | Motor cooling device |
| CN113394890B (en) * | 2021-06-28 | 2023-04-07 | 威海西立电子有限公司 | Motor stator cooling system and motor |
| CN118074379A (en) * | 2022-11-23 | 2024-05-24 | 舍弗勒技术股份两合公司 | Motor and power system for vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106130259A (en) | 2016-11-16 |
| CN106160341A (en) | 2016-11-23 |
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Application publication date: 20161116 |