CN109936241A - Motor - Google Patents
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- CN109936241A CN109936241A CN201910238271.3A CN201910238271A CN109936241A CN 109936241 A CN109936241 A CN 109936241A CN 201910238271 A CN201910238271 A CN 201910238271A CN 109936241 A CN109936241 A CN 109936241A
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- shell
- stator core
- annular component
- hole
- annular
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Abstract
The invention belongs to motor fields, specifically provide a kind of motor.Present invention seek to address that the lesser problem of energy density of the existing motor with liquid cooling function.Motor of the invention includes shell, stator core, stator winding, rotor, shaft and annular component.Inlet opening is provided at the top of shell, the bottom of shell is provided with fluid hole.Annular component is set in the first end of stator winding, and the first end of annular component and the inner wall of shell offset, the second end of annular component offsets with stator core, so that collectively forming the toroidal cavity being connected to inlet opening between annular component, shell and stator core.Multiple first through hole are disposed radially on annular construction member, first through hole is used to for the coolant liquid in toroidal cavity being introduced into the first end of stator winding.Coolant liquid on stator winding eventually flows to the bottom of shell and flows to the external world from fluid hole, to achieve the purpose that cooling stator winding, while also guaranteeing the energy density of motor.
Description
Technical field
The invention belongs to motor fields, specifically provide a kind of motor.
Background technique
With the rapid development of new-energy automobile, it is close that automobile drive motor more tends to miniaturization, high revolving speed and high-energy
Degree.In order to adapt to the above-mentioned variation of motor, the radiating mode of motor also becomes liquid cooling mode by traditional air cooling way.
For example, a kind of motor with direct-cooled structure is disclosed in the patent application of Publication No. CN106160341A,
Inside it is provided with the first inner ring member and the second inner ring member.It is formed between first inner ring member, first end cover, casing and stator
First annular cavity is formed with the second toroidal cavity between the second inner ring member, second end cover, casing and stator.Stator winding
Both ends be located in the first annular cavity and second toroidal cavity.Cooling oil enters from the fuel feed hole on casing
Then it is cooling fixed to enter the second toroidal cavity by the internal holes on casing for the first end of the cooling stator winding of first annular cavity
The second end of sub- winding, finally again from the oil outlet outflow on casing.
Above-mentioned motor is substantially the inside that inner ring member is arranged in stator winding.Due to determining in existing motor
The distance between internal diameter of the internal diameter of sub- winding overhang and stator core is usually all very small, and not extra position is installed
The inner ring member stated also can not just form the both ends of the cooling stator winding of toroidal cavity.In order to install above-mentioned inner ring member, this
Field technical staff is usually the internal diameter of Lai Zengjia stator winding end and fixed using the means for the twining amount for reducing stator winding
The distance between the internal diameter of sub- iron core, but will certainly thus reduce the energy density of motor.In other words, output is same
When the torque of size, the structure of motor is bigger.
Correspondingly, this field needs a kind of new motor to solve the above problems.
Summary of the invention
In order to solve the above problem in the prior art, in order to which the energy for solving the existing motor with liquid cooling function is close
Spend lesser problem, the present invention provides a kind of motor, including shell, fixed to the intracorporal stator core of the shell, be coiled in
Stator winding on the stator core, the rotor being rotatably arranged in the stator core and solid with the rotor coaxial
Surely the shaft connected is provided with inlet opening at the top of the shell, and the bottom of the shell is provided with fluid hole；The motor is also
Annular component including being set in the outside of the end of the stator winding, the first end of the annular component and the shell
Inner wall offsets, and the second end of the annular component and the end face of the stator core offset, so that the annular component, the shell
Toroidal cavity is collectively formed between body and the stator core, the toroidal cavity is connected to the inlet opening；The annular structure
Multiple first through hole are provided on part, the first through hole is used to the coolant liquid in the toroidal cavity being introduced into the stator
On the end of winding, the coolant liquid on the stator winding eventually flows to the bottom of the shell and outside fluid hole flow direction
Boundary.
In the optimal technical scheme of above-mentioned motor, the annular component includes the major diameter for being fixedly connected or being made into integration
Annular component and minor diameter annular component, the multiple first through hole are arranged on the minor diameter annular component；It is assembling
In the state of, the inner wall of the outer circumference surface and the shell of the large-diameter annual component offsets, the minor diameter annular component
The first end face of one end and the stator core far from the large-diameter annual component offsets.
In the optimal technical scheme of above-mentioned motor, multiple first through hole are circumferentially arranged equally spaced at described small
On diameter annular component.
In the optimal technical scheme of above-mentioned motor, a plurality of cooling duct, each institute are provided on the stator core
State cooling duct all axially through the stator core, and one end of cooling duct described in each respectively with the annular
Cavity connection, so that the coolant liquid in the toroidal cavity enters the cooling stator core in the cooling duct, and from described
The other end of cooling duct flows out.
In the optimal technical scheme of above-mentioned motor, it is described fixed that a plurality of cooling duct is circumferentially equally spacedly distributed in
On sub- iron core.
In the optimal technical scheme of above-mentioned motor, the annular component includes the first annular component and the second cyclic annular structure
Part, first annular component are set in the outside of the first end of the stator winding, and second annular component is set in institute
State the outside of the second end of stator winding；The toroidal cavity includes first annular cavity and the second toroidal cavity, and described first
The first annular cavity is formed between annular component, the shell and the first end of the stator core, it is described first annular
Cavity is connected to the inlet opening；It is formed between second annular component, the shell and the second end of the stator core
Second toroidal cavity, second toroidal cavity are connected to by the channel of setting on the housing with the inlet opening.
In the optimal technical scheme of above-mentioned motor, accommodating chamber and feed pathway, the feed liquor are provided in the shaft
The first end in channel leads to the external world from the first end of the shaft, and the second end of the feed pathway is connected to the accommodating chamber；
It is additionally provided with the second through-hole of multiple first ends for leading to the accommodating chamber in the shaft and/or multiple leads to the accommodating chamber
Second end third through-hole；Coolant liquid enters the accommodating chamber from the feed pathway, and then in shaft rotation from described
Second through-hole and/or the third through-hole are thrown out of on the end of the stator winding.
In the optimal technical scheme of above-mentioned motor, the accommodating chamber is the taper gradually expanded from first end to second end
Column chamber；And/or multiple second through-holes and/or multiple third through-holes equidistantly divide around the axis of the shaft
Cloth.
In the optimal technical scheme of above-mentioned motor, the motor further includes external channel, one end of the external channel
It is connected to the inlet opening, the other end of the external channel is connected to the first end of the feed pathway.
In the optimal technical scheme of above-mentioned motor, the shell includes the sleeve and end cap being fixedly attached together, institute
State the second channel that external channel includes the first passage being formed on the sleeve He is formed on the end cap.
In the optimal technical scheme of above-mentioned motor, the bottom of the shell is provided with foot passage, the foot passage
One end lead to the first side of the rotor, the other end of the foot passage leads to second side of the rotor.
In addition, the present invention also provides a kind of motor, including shell, it is fixed to the intracorporal stator core of the shell, coiling
On the stator core stator winding, the rotor that is rotatably arranged in the stator core and with the rotor coaxial
The shaft being fixedly connected is provided with inlet opening at the top of the shell, and the bottom of the shell is provided with fluid hole and bottom is logical
The first side of the rotor is led in road, one end of the foot passage, and the other end of the foot passage leads to the rotor
Second side；The motor further includes the large-diameter annual component and minor diameter annular component for being fixedly connected or being made into integration, described
Multiple first through hole are provided on minor diameter annular component, in the assembled state, the outer circle of the large-diameter annual component
The inner wall of circumferential surface and the shell offsets, the one end of the minor diameter annular component far from the large-diameter annual component with it is described
The first end face of stator core offsets, so that the large-diameter annual component, the minor diameter annular component, the shell and institute
It states and collectively forms toroidal cavity between stator core, the toroidal cavity is connected to the inlet opening；It is set on the stator core
It is equipped with a plurality of cooling duct, cooling duct described in each is all cold axially through the stator core, and described in each
But the one end in channel is connected to the toroidal cavity respectively；Accommodating chamber and feed pathway, the feed liquor are provided in the shaft
The first end in channel leads to the external world from the first end of the shaft, and the second end of the feed pathway is connected to the accommodating chamber,
It is additionally provided with the second through-hole of multiple first ends for leading to the accommodating chamber in the shaft and multiple leads to the accommodating chamber
The third through-hole of second end；The motor further includes external channel, and one end of the external channel is connected to the inlet opening, institute
The other end for stating external channel is connected to the first end of the feed pathway；The motor work when, coolant liquid from it is described into
Fluid apertures enter the shell after, a part from the first end that the first through hole flows to the stator winding, a part into
Enter the cooling stator core in the cooling duct and finally drop onto the second end of the stator winding, another part is cooling
Liquid enters in the accommodating chamber and logical from second through-hole and the third under the influence of centrifugal force from the external channel
Hole is thrown away in the first end and second end of the stator winding, and the coolant liquid on the stator winding flows under gravity
To the shell bottom and flow to from the fluid hole extraneous.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, based on fixed in the prior art
The larger situation of the distance between the outer diameter of the outer diameter of sub- winding and stator core, has been set in stator winding for annular construction member
The outside of end, cools down stator winding, in the case where not reducing motor power density, effectively cool stator around
Group.Specifically, by being provided with inlet opening at the top of shell, the bottom of shell is provided with fluid hole, in shell and stator
Annular component is set between iron core, and the first end of annular component and the inner wall of shell is made to offset, makes the second end of annular component
It offsets with the end face of stator core, so that collectively forming toroidal cavity between annular component, shell and stator core, and annular
Cavity is connected to inlet opening.Further, by being provided with multiple first through hole on annular construction member, so that coolant liquid is in motor work
When making, it can be injected into toroidal cavity from inlet opening, and then flowed in the first end of stator winding by first through hole, effectively
Ground cools stator winding, ensure that the runnability of motor.
It is further preferred that be provided with a plurality of cooling duct on stator core, each cooling duct all axially through
Stator core, and one end of each cooling duct is connected to toroidal cavity respectively.Accommodating chamber and feed liquor are provided in shaft
The first end in channel, feed pathway leads to the inlet opening from the first end of shaft, and the second end and accommodating chamber of feed pathway connect
It is logical, be additionally provided in shaft multiple first ends for leading to accommodating chamber the second through-hole and multiple second ends for leading to accommodating chamber the
Three through-holes.In motor work, after coolant liquid enters shell from inlet opening, a part flows to stator winding from first through hole
In first end, in a part of second end for entering the cooling stator core in cooling duct and finally dropping onto stator winding, another portion
Point coolant liquid enters from external channel to be thrown away in accommodating chamber and under the influence of centrifugal force from the second through-hole and third through-hole to fixed
In the first end and second end of sub- winding, the coolant liquid on stator winding flows to the bottom of shell and under gravity from out
Fluid apertures flow direction is extraneous.
Therefore, motor of the invention can not only effectively cool down stator winding, additionally it is possible to effectively cool down stator core
And shaft, the temperature rise of motor is efficiently controlled, ensure that the runnability of motor.
In addition, by the present invention in that the coolant liquid in toroidal cavity and cooling duct drops on the both ends of stator winding,
Be thrown to the coolant liquid in shaft on the both ends of stator winding so that on the both ends of stator winding coolant liquid only by gravity,
Without the effect by other external forces (such as pressure), coolant liquid is avoided on the both ends of stator winding along stator winding
It flows in the gap between stator core and rotor, hinders rotor rotation, increase loss when rotor rotation.
Scheme 1, a kind of motor, including shell, fixed to the intracorporal stator core of the shell, be coiled on the stator core
Stator winding, the rotor being rotatably arranged in the stator core and the shaft being fixedly connected with the rotor coaxial,
Inlet opening is provided at the top of the shell, the bottom of the shell is provided with fluid hole；
The motor further includes the annular component for being set in the outside of end of the stator winding, and the first of the annular component
It holds and offsets with the inner wall of the shell, the second end of the annular component and the end face of the stator core offset, so that described
Toroidal cavity, the toroidal cavity and the inlet opening are collectively formed between annular component, the shell and the stator core
Connection；
Multiple first through hole are provided on the annular construction member, the first through hole is used for the coolant liquid in the toroidal cavity
It is introduced on the end of the stator winding, the coolant liquid on the stator winding eventually flows to the bottom of the shell and from institute
It is extraneous to state fluid hole flow direction.
Scheme 2, motor according to scheme 1, which is characterized in that the annular component includes being fixedly connected or being made into integration
Large-diameter annual component and minor diameter annular component, the multiple first through hole are arranged on the minor diameter annular component；
In the assembled state, the inner wall of the outer circumference surface and the shell of the large-diameter annual component offsets, described small
The first end face of diameter annular component one end and the stator core far from the large-diameter annual component offsets.
Scheme 3, the motor according to scheme 2, which is characterized in that multiple first through hole are circumferentially arranged equally spaced at
On the minor diameter annular component.
Scheme 4, motor according to scheme 1, which is characterized in that a plurality of cooling duct is provided on the stator core, often
One cooling duct all axially through the stator core, and one end of cooling duct described in each respectively with institute
Toroidal cavity connection is stated, so that the coolant liquid in the toroidal cavity enters the cooling stator core in the cooling duct, and
It is flowed out from the other end of the cooling duct.
Scheme 5, motor according to scheme 4, which is characterized in that a plurality of cooling duct is circumferentially equally spacedly distributed in
On the stator core.
Scheme 6, motor according to scheme 1, which is characterized in that the annular component includes the first annular component and the second ring
Shape component, first annular component are set in the outside of the first end of the stator winding, and second annular component is arranged
In the outside of the second end of the stator winding；
The toroidal cavity includes first annular cavity and the second toroidal cavity, first annular component, the shell and institute
It states and forms the first annular cavity between the first end of stator core, the first annular cavity is connected to the inlet opening；
Second toroidal cavity is formed between second annular component, the shell and the second end of the stator core,
Second toroidal cavity is connected to by the channel of setting on the housing with the inlet opening.
Scheme 7, motor according to scheme 1, which is characterized in that accommodating chamber and feed pathway, institute are provided in the shaft
The first end for stating feed pathway leads to the external world, the second end of the feed pathway and the accommodating chamber from the first end of the shaft
Connection；
It is additionally provided with the second through-hole of multiple first ends for leading to the accommodating chamber in the shaft and/or multiple leads to the appearance
Receive chamber second end third through-hole；
Coolant liquid enters the accommodating chamber from the feed pathway, and then in shaft rotation from second through-hole and/or institute
Third through-hole is stated to be thrown out of on the end of the stator winding.
Scheme 8, motor according to scheme 7, which is characterized in that the accommodating chamber is gradually expanded from first end to second end
Tapered pole chamber；And/or multiple second through-holes and/or multiple third through-holes are between axis of the shaft etc.
Away from distribution.
Scheme 9, the motor according to scheme 8, which is characterized in that the motor further includes external channel, the external channel
One end be connected to the inlet opening, the other end of the external channel is connected to the first end of the feed pathway.
Scheme 10, motor according to scheme 9, which is characterized in that the shell include the sleeve that is fixedly attached together and
End cap, the external channel include the first passage being formed on the sleeve and the second channel that is formed on the end cap.
Scheme 11, the motor according to any one of scheme 1 to 10, which is characterized in that the bottom of the shell is provided with bottom
The first side of the rotor is led in portion channel, one end of the foot passage, and the other end of the foot passage leads to described turn
Second side of son.
Scheme 12, a kind of motor, including shell, fixed to the intracorporal stator core of the shell, be coiled on the stator core
Stator winding, the rotor being rotatably arranged in the stator core and the shaft being fixedly connected with the rotor coaxial,
It is characterized in that, being provided with inlet opening at the top of the shell, the bottom of the shell is provided with fluid hole and bottom is logical
The first side of the rotor is led in road, one end of the foot passage, and the other end of the foot passage leads to the rotor
Second side；
The motor further includes the large-diameter annual component and minor diameter annular component for being fixedly connected or being made into integration, described small straight
Multiple first through hole are provided on diameter annular component,
In the assembled state, the inner wall of the outer circumference surface and the shell of the large-diameter annual component offsets, described small
The first end face of diameter annular component one end and the stator core far from the large-diameter annual component offsets, so that described
Toroidal cavity is collectively formed between large-diameter annual component, the minor diameter annular component, the shell and the stator core,
The toroidal cavity is connected to the inlet opening；
A plurality of cooling duct is provided on the stator core, cooling duct described in each is all axially through the stator iron
Core, and one end of cooling duct described in each is connected to the toroidal cavity respectively；
Accommodating chamber and feed pathway are provided in the shaft, the first end of the feed pathway is logical from the first end of the shaft
Outwardly, the second end of the feed pathway is connected to the accommodating chamber,
It is additionally provided with the second through-hole of multiple first ends for leading to the accommodating chamber in the shaft and multiple leads to the receiving
The third through-hole of the second end of chamber；
The motor further includes external channel, and one end of the external channel is connected to the inlet opening, the external channel
The other end is connected to the first end of the feed pathway；
It is a part of from the first through hole after coolant liquid is from the inlet opening into the shell in motor work
It flows in the first end of the stator winding, a part enters the cooling stator core in the cooling duct and finally drops onto
In the second end of the stator winding, another part coolant liquid enters in the accommodating chamber and in centrifugal force from the external channel
Under the action of throw away from second through-hole and the third through-hole onto the first end and second end of the stator winding, it is described
Coolant liquid on stator winding flows to the bottom of the shell under gravity and flows to from the fluid hole extraneous.
Detailed description of the invention
The preferred embodiment of the present invention described with reference to the accompanying drawings, in attached drawing:
Fig. 1 is the cross-sectional view of motor of the invention；
Fig. 2 is the side view of stator core of the invention；
Fig. 3 is the end structure illustration of stator core of the invention；
Fig. 4 is the side view of annular component of the invention；
Fig. 5, which is toroidal cavity, is connected to effect diagram with the cooling duct of stator core；
Fig. 6 is the side view of shaft of the invention；
Fig. 7 is the cross-sectional view of shaft of the invention；
Fig. 8 is the connection effect diagram between each cooling duct of motor of the invention.
Reference signs list:
1, shell；11, sleeve；111, inlet opening；112, fluid hole；113, foot passage；114, first passage；12, it holds
Lid；121, second channel；
2, stator core；21, cooling duct；
3, stator winding；
4, annular component；41, large-diameter annual component；42, minor diameter annular component；421, first through hole；
5, rotor；
6, shaft；61, accommodating chamber；62, feed pathway；63, the second through-hole；64, third through-hole；
7, toroidal cavity；
8, external channel.
Specific embodiment
It will be apparent to a skilled person that this section embodiment is used only for explaining technical principle of the invention,
It is not intended to limit protection scope of the present invention.For example, the shell of motor of the invention may include that an end cap also can wrap
Two end caps are included, those skilled in the art, which can according to need, makes adjustment to it, to adapt to specific application, adjustment
Technical solution afterwards will fall into protection scope of the present invention.
It should be noted that in the description of the present invention, term " center ", "upper", "lower", "left", "right", "vertical",
"horizontal", "inner", "outside" etc. indicate that the term of direction or positional relationship is direction based on the figure or positional relationship, this is only
It is merely for convenience of describing, rather than indication or suggestion described device or element must have a particular orientation, with specific side
Position construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second ", " third " are only used for
Purpose is described, relative importance is not understood to indicate or imply.
In addition it is also necessary to explanation, in the description of the present invention unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For
For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
As shown in Figure 1, motor of the invention mainly includes shell 1, stator core 2, stator winding 3, annular component 4, turns
Son 5 and shaft 6.Wherein, stator core 2 is fixed in shell 1 by the way of interference fit, and stator winding 3 is fixed to stator
It is stretched out on iron core 2 and from the both ends of stator core 2, annular component 4 is arranged between shell 1 and stator core 2, and rotor 5 can turn
It is arranged in stator core 3 dynamicly, shaft 6 is arranged in rotor 5 and is fixedly and coaxially connected with rotor 5.Shaft 6 passes through bearing
(not indicating in figure) is pivotally connected to together with shell 1.
With continued reference to Fig. 1, the top of shell 1 is provided with inlet opening 111, and the bottom of shell 1 is provided with fluid hole 112 and bottom
Portion channel 113, and the both ends of foot passage 113 respectively lead to the two sides of rotor 5.Specifically, shell 1 includes being fixedly connected
Sleeve 11 and end cap 12, wherein the top of sleeve 11 position of left end in Fig. 1 is provided with inlet opening 111, the bottom of sleeve 11
Portion position of right end in Fig. 1 is provided with fluid hole 112.The bottom of sleeve 11 and the bottom of end cap 12 are both provided with channel,
Two channels collectively form the foot passage 113, and 1 internal rotor of shell, 5 left side is led in the left end of foot passage 113 in Fig. 1
The cavity of side (the first side), the right end of foot passage 113 leads to the cavity on 1 internal rotor of shell, 5 right side (second side) in Fig. 1.
It will be appreciated to those of skill in the art that " top " and " bottom " of shell 1 described in the present invention refers to electricity
For machine in the top and bottom of installation back casing 1 in place, being somebody's turn to do " top " and " bottom " is also shell 1 in motor normal use situation
Under top and bottom.
In addition, those skilled in the art also can according to need, inlet opening 111 and fluid hole 112 are arranged on shell 1
Any feasible position, such as inlet opening 111 is arranged in any position at 11 top of sleeve or the top of end cap 12, by liquid out
Any position of 11 bottom of sleeve or the bottom of end cap 12 is arranged in hole 112.Further, those skilled in the art can also basis
It needs, under the premise of guaranteeing that foot passage 113 can be connected to 5 left and right sides cavity of rotor, foot passage 113 is arranged to appoint
It anticipates feasible form, such as is made only in foot passage 113 on sleeve 11.
With continued reference to Fig. 1, the top of sleeve 11 is additionally provided with first passage 114, and the second through-hole is provided on end cap 12
121.One end of first passage 114 is connected to inlet opening 111, the other end and the second channel on end cap 12 of first passage 114
121 one end connection, the other end of second channel 121 are connected to the feed pathway 62 in shaft 6.Wherein, 114 He of first passage
Second channel 121 collectively forms external channel 8.
It will be appreciated to those of skill in the art that second channel 121 can be both formed directly on end cap 12；Second is logical
Road 121 can also be formed on other any feasible components, then again be fixedly attached together the component and end cap 12.It should
Component can be any feasible structure such as metal tube, flexible pipe, metal block.
As shown in Figures 2 and 3, stator core 2 is circumferentially equally spacedly provided with a plurality of cooling duct 21, and each is cooling
Channel 21 all axially penetrates through stator core 2 along stator core 2.It will be appreciated to those of skill in the art that stator core 2 can
To be integrally formed structure, it is also possible to structure made of being superimposed as multiple silicon steel sheets.Wherein, when stator core 2 is by more
When structure made of a silicon steel sheet superposition, each silicon steel sheet is both provided with identical through-hole on identical position, so as to more
When a silicon steel sheet stack is added together, the through-hole of alignment is capable of forming the cooling duct 21.
In addition, those skilled in the art also can according to need, a plurality of cooling duct 21 is arranged to non-equidistantly distributed
Form.
As shown in figure 4, annular component 4 of the invention includes that the large-diameter annual component 41 being made into integration and minor diameter are cyclic annular
Component 42 or art technology also can according to need large-diameter annual component 41 and minor diameter annular component 42 using weldering
It connects or the mode of welding connects together.Wherein, multiple first are circumferentially equally spacedly provided on minor diameter annular component 42
Through-hole 421.Alternatively, those skilled in the art also can according to need, multiple first through hole 421 are arranged to non-equidistantly distributed
Form.
Return to continued reference to Fig. 1, in the state that motor of the invention assembles, annular component 4 be set in stator around
In the first end (left end of stator winding 3 in Fig. 1) of group 3, it is preferable that annular component 4 and 3 clearance fit of stator winding, so as to
Coolant liquid can be flowed on stator winding 3 by first through hole 421.Further, the outer circumference surface of large-diameter annual component 41 with
The inner wall of sleeve 11 offsets, the end face of minor diameter annular component 42 one end far from large-diameter annual component 41 and stator core 2
(left side of stator core 2 in Fig. 1) offsets, so that collectively forming annular between annular component 4, sleeve 11 and stator core 2
Cavity 7.It is not difficult to find out that, inlet opening 111 is aligned with toroidal cavity 7 from Fig. 1, to connect inlet opening 111 and toroidal cavity 7
It is logical.
It is not difficult to find out that, first through hole 421 is directed toward stator winding 3, to draw the coolant liquid in toroidal cavity 7 from Fig. 1
It is directed on stator winding 3.The first end (left end of cooling duct 21 in Fig. 1) of each cooling duct 21 on stator core 2
It is all connected to respectively with toroidal cavity 7, so that cooling duct 21 can guide the coolant liquid in toroidal cavity 7 to stator core 2
On second end (right end of cooling duct 21 in Fig. 1), and drop on the right end of stator winding 3.
In addition, those skilled in the art also can according to need, it, will be cyclic annular under the premise of being capable of forming toroidal cavity 7
Component 4 is arranged to other any feasible forms, such as annular component 4 is arranged to an isodiametric annulus, and make the circle
One end of ring is abutted with end cap 12, abuts the other end of the annulus and the end face of stator core 2.
As shown in Figure 6 and Figure 7, it is provided with accommodating chamber 61 and feed pathway 62 in shaft 6 of the invention, feed pathway 62
First end (left end of feed pathway 62 in Fig. 7) leads to extraneous (shell 1 from the first end (left end of shaft 6 in Fig. 7) of shaft 6
Outside), the second end (right end of feed pathway 62 in Fig. 7) of feed pathway 61 is connected to accommodating chamber 61.It is also set up in shaft 6
There are the second through-hole 63 of multiple first ends for leading to accommodating chamber 61 and the third through-hole 64 of multiple second ends for leading to accommodating chamber 61,
Wherein, the second through-hole 63 and third through-hole 64 are located at the two sides of rotor 5, i.e. the second through-hole 63 is by the sky in the left side of rotor 5
Chamber is connected to accommodating chamber 61, and the cavity on the right side of rotor 5 is connected to by third through-hole 64 with accommodating chamber 61.
In a preferred embodiment of the invention, multiple second through-holes 63 and multiple third through-holes 64 distinguish for around the shaft 6 week
To equidistantly distributed.Alternatively, those skilled in the art also can according to need, make multiple second through-holes 63 and multiple third through-holes
64 non-are arranged equally spaced in shaft 6.In addition, those skilled in the art can also be as needed, only it is arranged in shaft 6 more
A second through-hole 63 or multiple third through-holes 64.
Further, although not showed that in figure, in a preferred embodiment of the invention, accommodating chamber shown in fig. 7
61 be the tapered pole chamber gradually expanded from left end to right end, so that the coolant liquid in accommodating chamber 61 is in gravity or centrifugal force
The lower right end that can automatically flow to accommodating chamber 61 of effect, and then flowed out from third through-hole 64.
The working principle of motor of the invention is described in detail referring to Fig. 1 and Fig. 8.
When motor works, shaft 6 drives 5 common rotation of rotor.Coolant liquid from inlet opening 111 enter shell 1 after first quilt
It is divided into two parts, a part flows directly into toroidal cavity 7, and another part is flowed into shaft 6 by external channel 8.Wherein, it flows into
The coolant liquid of toroidal cavity 7 is divided into two parts again, and a part flows to stator in Fig. 1 from the first through hole 421 on annular component 4
On the outer surface of the left end of winding 3, another part flows to the other end of stator core 2 from the cooling duct 21 on stator core 2
And it drops onto Fig. 1 on the outer surface of the right end of stator winding 3.Coolant liquid in into shaft 6 in accommodating chamber 61 is with shaft 6
Rotation and be subject to centrifugal forces, coolant liquid is thrown out of from the second through-hole 63 and third through-hole 64 under the influence of centrifugal force
Onto the inner surface at the both ends of stator winding 3.Coolant liquid on 3 both ends of stator winding is flowed under gravity in shell 1
Bottom, wherein the coolant liquid in 5 left side cavity of rotor from foot passage 113 flow to right side cavity, in the cavity of right side
Coolant liquid flow to extraneous (outside of shell 1) together from fluid hole 112.
In conclusion motor of the invention cools stator core 2 by making coolant liquid flow through cooling duct 21, by making
Coolant liquid flows through feed pathway 62 and accommodating chamber 61 cools shaft 6 and rotor 5, by making in toroidal cavity 7 from first through hole
421 outflow coolant liquids and from cooling duct 21 flow out coolant liquid drop on stator winding 4, and by make shaft 6 will
Coolant liquid in it is thrown away on stator winding 4, cools stator winding 4, is significantly reduced the temperature rise of motor, be ensure that electricity
Machine runnability.
In another feasible embodiment of the invention, unlike above preferred embodiment, two are arranged in motor
A annular construction member 4, so that toroidal cavity 7 also becomes two.The right-hand end of stator core 2 is also provided with a ring i.e. in Fig. 1
Shape component 4.For the convenience of description, the annular construction member 4 for being located at the left-hand end of stator core 2 in Fig. 1 is defined as first annular structure
The annular construction member 4 for being located at the right-hand end of stator core 2 in Fig. 1 is defined as the second annular construction member by part；Stator in Fig. 1 will be located at
The toroidal cavity 7 of the left-hand end of iron core 2 is defined as first annular cavity, will be located at the annular of the right-hand end of stator core 2 in Fig. 1
Cavity 7 is defined as the second toroidal cavity.Wherein, first annular cavity is formed in the first annular component, set as herein-before described
Between cylinder 11 and the first end of stator core 2, the second toroidal cavity is formed in the second annular component, sleeve 11 and stator core 2
Second end between.Second toroidal cavity is connected to by cooling duct 21 with first annular cavity or those skilled in the art
Also it can according to need, save the setting of cooling duct 21, individual channel is set at the top of shell 1 and is connected to first annular sky
Chamber and the second toroidal cavity.
In another feasible embodiment of the invention, unlike above preferred embodiment, cancel external channel 8
Setting injects external liquid supplying device directly in the feed pathway 62 in shaft 6 coolant liquid.
So far, it has been combined preferred embodiment shown in the drawings and describes technical solution of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement will fall within the scope of protection of the present invention.
Claims (10)
1. a kind of motor, including shell, fixed to the shell intracorporal stator core, the stator that is coiled on the stator core
Winding, the rotor being rotatably arranged in the stator core and the shaft being fixedly connected with the rotor coaxial,
It is characterized in that, being provided with inlet opening at the top of the shell, the bottom of the shell is provided with fluid hole；
The motor further includes the annular component for being set in the outside of end of the stator winding, and the first of the annular component
It holds and offsets with the inner wall of the shell, the second end of the annular component and the end face of the stator core offset, so that described
Toroidal cavity, the toroidal cavity and the inlet opening are collectively formed between annular component, the shell and the stator core
Connection；
Multiple first through hole are provided on the annular construction member, the first through hole is used for the coolant liquid in the toroidal cavity
It is introduced on the end of the stator winding, the coolant liquid on the stator winding eventually flows to the bottom of the shell and from institute
It is extraneous to state fluid hole flow direction.
2. motor according to claim 1, which is characterized in that the annular component includes being fixedly connected or being made into integration
Large-diameter annual component and minor diameter annular component, the multiple first through hole are arranged on the minor diameter annular component；
In the assembled state, the inner wall of the outer circumference surface and the shell of the large-diameter annual component offsets, described small
The first end face of diameter annular component one end and the stator core far from the large-diameter annual component offsets.
3. motor according to claim 2, which is characterized in that multiple first through hole are circumferentially arranged equally spaced at
On the minor diameter annular component.
4. motor according to claim 1, which is characterized in that be provided with a plurality of cooling duct on the stator core, often
One cooling duct all axially through the stator core, and one end of cooling duct described in each respectively with institute
Toroidal cavity connection is stated, so that the coolant liquid in the toroidal cavity enters the cooling stator core in the cooling duct, and
It is flowed out from the other end of the cooling duct.
5. motor according to claim 4, which is characterized in that a plurality of cooling duct is circumferentially equally spacedly distributed in
On the stator core.
6. motor according to claim 1, which is characterized in that the annular component includes the first annular component and the second ring
Shape component, first annular component are set in the outside of the first end of the stator winding, and second annular component is arranged
In the outside of the second end of the stator winding；
The toroidal cavity includes first annular cavity and the second toroidal cavity, first annular component, the shell and institute
It states and forms the first annular cavity between the first end of stator core, the first annular cavity is connected to the inlet opening；
Second toroidal cavity is formed between second annular component, the shell and the second end of the stator core,
Second toroidal cavity is connected to by the channel of setting on the housing with the inlet opening.
7. motor according to claim 1, which is characterized in that be provided with accommodating chamber and feed pathway, institute in the shaft
The first end for stating feed pathway leads to the external world, the second end of the feed pathway and the accommodating chamber from the first end of the shaft
Connection；
It is additionally provided with the second through-hole of multiple first ends for leading to the accommodating chamber in the shaft and/or multiple leads to the appearance
Receive chamber second end third through-hole；
Coolant liquid enters the accommodating chamber from the feed pathway, and then in shaft rotation from second through-hole and/or institute
Third through-hole is stated to be thrown out of on the end of the stator winding.
8. motor according to claim 7, which is characterized in that the accommodating chamber is gradually expanded from first end to second end
Tapered pole chamber；And/or multiple second through-holes and/or multiple third through-holes are between axis of the shaft etc.
Away from distribution.
9. motor according to claim 8, which is characterized in that the motor further includes external channel, the external channel
One end be connected to the inlet opening, the other end of the external channel is connected to the first end of the feed pathway.
10. motor according to claim 9, which is characterized in that the shell include the sleeve that is fixedly attached together and
End cap, the external channel include the first passage being formed on the sleeve and the second channel that is formed on the end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910238271.3A CN109936241A (en) | 2019-03-27 | 2019-03-27 | Motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910238271.3A CN109936241A (en) | 2019-03-27 | 2019-03-27 | Motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109936241A true CN109936241A (en) | 2019-06-25 |
Family
ID=66988398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910238271.3A Pending CN109936241A (en) | 2019-03-27 | 2019-03-27 | Motor |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987861A (en) * | 2020-08-22 | 2020-11-24 | 方彭 | Motor with stator function of dispelling heat fast |
| CN112104115A (en) * | 2020-08-29 | 2020-12-18 | 佛山市顺德区金泰德胜电机有限公司 | Improved structure of oil-cooled motor |
| CN112104114A (en) * | 2020-08-29 | 2020-12-18 | 佛山市顺德区金泰德胜电机有限公司 | Closed oil-cooled motor |
| WO2021160213A1 (en) * | 2020-02-11 | 2021-08-19 | Schaeffler Technologies AG & Co. KG | Electrical drive device and drive arrangement |
| CN113708550A (en) * | 2021-09-14 | 2021-11-26 | 威海西立电子有限公司 | Electric machine |
| WO2022028382A1 (en) * | 2020-08-03 | 2022-02-10 | 安徽威灵汽车部件有限公司 | Motor and vehicle |
| CN114221470A (en) * | 2021-12-06 | 2022-03-22 | 华南理工大学 | Motor cooling structure |
| CN114257007A (en) * | 2021-12-29 | 2022-03-29 | 苏州汇川联合动力系统有限公司 | Rotor and motor structure |
| CN114285213A (en) * | 2021-12-29 | 2022-04-05 | 苏州汇川联合动力系统有限公司 | Motor and automobile |
| CN114448136A (en) * | 2021-12-22 | 2022-05-06 | 华南理工大学 | Motor with multiple cooling flow channels |
| WO2022134746A1 (en) * | 2020-12-25 | 2022-06-30 | 奇瑞汽车股份有限公司 | Oil-cooled motor cooling system, and vehicle |
| CN114759736A (en) * | 2022-06-04 | 2022-07-15 | 北京牧风科技有限公司 | Blower motor cooling structure |
| WO2023197819A1 (en) * | 2022-04-12 | 2023-10-19 | 宁德时代(上海)智能科技有限公司 | Spray ring, stator assembly, motor and electric vehicle |
| DE102022119233A1 (en) | 2022-08-01 | 2024-02-01 | Schaeffler Technologies AG & Co. KG | Shaft for a rotor device of an electric machine and rotor device for an electric machine of a vehicle |
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| CN101877505A (en) * | 2009-04-29 | 2010-11-03 | 通用汽车环球科技运作公司 | Be used to have the method and apparatus of the magneto of direct liquid cooled stator |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021160213A1 (en) * | 2020-02-11 | 2021-08-19 | Schaeffler Technologies AG & Co. KG | Electrical drive device and drive arrangement |
| WO2022028382A1 (en) * | 2020-08-03 | 2022-02-10 | 安徽威灵汽车部件有限公司 | Motor and vehicle |
| CN111987861B (en) * | 2020-08-22 | 2021-07-06 | 徐倩倩 | Motor with stator function of dispelling heat fast |
| CN111987861A (en) * | 2020-08-22 | 2020-11-24 | 方彭 | Motor with stator function of dispelling heat fast |
| CN112104115A (en) * | 2020-08-29 | 2020-12-18 | 佛山市顺德区金泰德胜电机有限公司 | Improved structure of oil-cooled motor |
| CN112104114A (en) * | 2020-08-29 | 2020-12-18 | 佛山市顺德区金泰德胜电机有限公司 | Closed oil-cooled motor |
| WO2022134746A1 (en) * | 2020-12-25 | 2022-06-30 | 奇瑞汽车股份有限公司 | Oil-cooled motor cooling system, and vehicle |
| CN113708550A (en) * | 2021-09-14 | 2021-11-26 | 威海西立电子有限公司 | Electric machine |
| CN114221470A (en) * | 2021-12-06 | 2022-03-22 | 华南理工大学 | Motor cooling structure |
| CN114448136A (en) * | 2021-12-22 | 2022-05-06 | 华南理工大学 | Motor with multiple cooling flow channels |
| CN114257007A (en) * | 2021-12-29 | 2022-03-29 | 苏州汇川联合动力系统有限公司 | Rotor and motor structure |
| CN114285213A (en) * | 2021-12-29 | 2022-04-05 | 苏州汇川联合动力系统有限公司 | Motor and automobile |
| CN114257007B (en) * | 2021-12-29 | 2023-06-23 | 苏州汇川联合动力系统有限公司 | Rotor and motor structure |
| WO2023197819A1 (en) * | 2022-04-12 | 2023-10-19 | 宁德时代(上海)智能科技有限公司 | Spray ring, stator assembly, motor and electric vehicle |
| CN114759736A (en) * | 2022-06-04 | 2022-07-15 | 北京牧风科技有限公司 | Blower motor cooling structure |
| CN114759736B (en) * | 2022-06-04 | 2022-11-18 | 精效悬浮(苏州)科技有限公司 | Blower motor cooling structure |
| DE102022119233A1 (en) | 2022-08-01 | 2024-02-01 | Schaeffler Technologies AG & Co. KG | Shaft for a rotor device of an electric machine and rotor device for an electric machine of a vehicle |
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