CN109951024A - Stator and motor including it - Google Patents
Stator and motor including it Download PDFInfo
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- CN109951024A CN109951024A CN201910303694.9A CN201910303694A CN109951024A CN 109951024 A CN109951024 A CN 109951024A CN 201910303694 A CN201910303694 A CN 201910303694A CN 109951024 A CN109951024 A CN 109951024A
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Abstract
The invention discloses a kind of stator and including its motor, stator includes stator core and stator winding, stator core includes multiple stator tooths and multiple stator slots, two stator winding are respectively wound around along two adjacent stator tooths of the circumferential direction of stator, first gap is equipped between two stator winding at least one stator slot, stator further includes liquid cooling apparatus, and liquid cooling apparatus includes liquid cooling pipe, liquid cooling pipe includes cooling section, liquid input section and liquid section, at least part of cooling section are set in first gap out.The cooling section of liquid cooling pipe is placed in stator slot and close to stator winding by the present invention, is increased the contact area between cooling section and stator winding, is improved the liquid cooling efficiency of motor.Liquid cooling pipe series connection and integrated molding in multiple stator slots, reduce connector quantity.Part liquid cooling apparatus is set to stator interior, reduces constraint of the motor space to liquid cooling apparatus by the inner space for making full use of stator simultaneously, to reduce production cost, improves the feasibility of liquid cooling apparatus layout.
Description
Technical field
The present invention relates to a kind of stator and including its motor.
Background technique
In motor operation course due to Ohmic resistance and it is ferromagnetic it is stagnant generate heat on stator winding and iron core, need to pass through
Cooling device disperses these heats, and otherwise motor may generate the failure of various modes.Excessively high motor temperature will add
The aging of fast stator winding insulation ultimately causes insulation damage, motor can not work normally.Rule of thumb, stator winding temperature rise
Every to promote 10 DEG C, insulation life will shorten half.On the other hand, stator winding temperature raising will will lead to stator winding resistance
Become larger, motor heat production increases at quadratic relationship, cause electric efficiency to decline.Therefore, motor temperature rise control is in limit value and most
Possible reduction motor temperature rise all has for the normal operation and efficient operation of motor and its important meaning.For Permanent Magnet and Electric
Machine, the heat that stator winding generates can be transferred to permanent magnet by air gap to promote permanent magnetism temperature, and excessively high temperature will be led
A series of problems, such as causing permanent magnet that irreversible demagnetization occurs, further resulting in power of motor decline, imbalance.Only by stator
The heat that winding generates disperses in time and reduces stator winding temperature by rational method, could effectively avoid generating due to high temperature
Permanent magnet irreversible demagnetization.
Existing micro-machine nearly all uses air-cooled motor.Micro-machine quantity of heat production is small, but quantity of heat production and heat dissipation
The ratio of area is big, although often meeting cooling requirement enough so air-cooled cooling efficiency is low.In this case, it uses
Air cooled mode can give full play to its Yi Shixian, it is highly reliable, substantially non-maintaining the features such as.However, for large-scale electricity
Air-cooled feasibility is often lower for machine, this be it is low by air-cooling efficiency, air cooling apparatus volume is big, overall cost is high etc., and factors are made
At.Therefore, many large-size machines are cooling cooling using liquid.Motor liquid cooling is such as cold there are diversified forms and a variety of layouts
But liquid pipeline is located at the jacket-cooled in casing, coolant line is located at the jacket-cooled in stator core yoke portion, in Stator winding wires
Portion leads to the internal water cooling etc. of coolant liquid.Different liquid cooling mode cooling efficiencies differ greatly, and therefore, a challenge of liquid cooling design exists
In using suitable liquid cooling mode and reasonable cooling arrangement, cooling efficiency is improved.On the other hand, liquid cooling pipeline and equipment are past
Toward by motor space constraint, become a main cause for causing liquid cooling higher cost.So before not influencing reliability
It puts, by reasonable utilization motor inner space, liquid cooling pipeline and equipment is subjected to reasonable Arrangement, be enhancing liquid cooling feasibility
A kind of approach.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome the liquid cooling apparatus of motor stator in the prior art due to space
Feasibility is lower caused by layout and the defect of higher cost, provides a kind of stator and the motor including it.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of stator, including stator core, stator winding, the stator core by multiple tooth socket shapes silicon steel sheet stack and
At the stator core includes multiple stator tooths and multiple stator slots, and two stator winding are respectively wound around along the stator
Adjacent two stator tooths of circumferential direction on, carrying is adjacent along the circumferential direction of the stator in any stator slot
It is empty to be equipped with first between two stator winding at least one described stator slot for each a part of two stator winding
Gap, it is characterized in that, the stator further includes liquid cooling apparatus, and the liquid cooling apparatus includes liquid cooling pipe, and the liquid cooling pipe includes cold
But section, liquid input section and liquid section, the cooling section are connected to and in communication with the liquid input section out, the cooling section and it is described go out liquid Duan Lian
It connects and is connected to, at least part of the cooling section is set in the first gap.
In the present solution, the cooling section of liquid cooling pipe is placed in stator slot using the double-deck centralized stator winding structure by stator
And close to stator winding, fixed between cooling section and stator winding by frictional force.Coolant liquid flows in liquid cooling pipe, to stator
Iron core and stator winding play cooling effect.On the one hand the position setting of cooling section makes full use of the space between stator winding, drop
Low constraint of the motor space to liquid cooling pipe improves the feasibility of liquid cooling apparatus layout to reduce production cost；On the other hand
The contact area between cooling section and stator winding is increased, the liquid cooling efficiency of motor is improved.
Preferably, the cooling section is at least set to along the two adjacent first gaps of the circumferential direction of the stator,
The liquid cooling pipe further includes the linkage section for connecting the cooling section in the two adjacent first gaps.
In the present solution, the cooling section at least two adjacent first gaps connects, it is possible to reduce feed liquor in cooling circuit
Liquid input section entrance and the out quantity and weldering of the seal in liquid section exit is arranged in the quantity of section and the out connectors such as liquid section, reduction
Number is connect, to reduce cost, reduce the fault point, increase liquid cooling reliability.
Preferably, the liquid input section and it is described go out liquid section be parallel to the radial direction of the stator, the one of the liquid input section
A part of part and the liquid section out is set in the first gap.
In the present solution, liquid input section and out liquid section are parallel to stator radial direction, so that the position of liquid input section and out liquid section is arranged
The inner space that stator can be utilized, reduces the constraint in motor space, improves the feasibility of liquid cooling apparatus layout.
Preferably, the stator core includes that an at least row is led to by the radial direction that the silicon steel sheet is discontinuously stacked and formed
Road is equipped with support construction in the radial passage.
In the present solution, radial passage for enable liquid input section and out liquid section along stator radially across stator core, from
And stator interior space can be set in liquid cooling equipment in part, by making full use of stator interior space, to reduce motor space
Constraint improves the feasibility of liquid cooling apparatus layout.
Preferably, the quantity of the radial passage is one.
In the present solution, radial passage quantity is more, stator is longer along the length of its axial direction, also more occupies in motor
Portion space, so the quantity of radial passage is reduced to the greatest extent, to reduce stator space shared in motor.
Preferably, the support construction includes support frid, and along the axial direction of the stator, the two of the support frid
End is connect with the silicon steel sheet at the both ends of the radial passage respectively, and the support frid includes support baseboard and supporting rib, described
Supporting rib is set on the support baseboard.
Preferably, the height of the supporting rib is greater than height and the institute of the liquid input section along the axial direction of the stator
State out the height of liquid section, the liquid input section and it is described go out liquid section be arranged in the radial passage, for by the liquid cooling apparatus
A part is set to the interior zone of the stator.
In the present solution, the height of supporting rib needs to meet liquid input section or liquid section can be along stator radially across radial logical out
Road.
Preferably, the cross sectional shape of the liquid cooling pipe is quadrangle, at least two faces of the liquid cooling pipe and the stator
Winding or stator core engagement.
In the present solution, the section that liquid cooling pipe is set as quadrangle can increase the contact area of liquid cooling pipe and stator winding,
To improve liquid cooling efficiency.
Preferably, the cooling section includes the more pipelines for being parallel to the axial direction of the stator.
In the present solution, the main flow direction of coolant liquid in cooling section is parallel to stator shaft orientation.
Preferably, the cooling section is coil arrangement, the bending place of the cooling section is set to the cooling section along described fixed
The both ends of the axial direction of son.
In the present solution, the flow path of coolant liquid in coils be greater than flow path of the coolant liquid in single straight tube,
The heat that stator core and stator winding generate is fully absorbed convenient for coolant liquid, improves liquid cooling efficiency.
Preferably, the bottom of the stator slot be equipped with slot bottom cushion block, the slot bottom cushion block for fill the liquid cooling pipe with
Second gap between the bottom of the stator slot.
In the present solution, slot bottom cushion block is filled with the region between liquid cooling pipe and the bottom of stator slot, fix liquid cooling pipe
Stability improve.
Preferably, the cooling section is a plurality of straight tube structure in parallel.
In the present solution, coolant liquid can flow in more straight tubes simultaneously, quickening cooling velocity improves cooling efficiency.
Preferably, coolant liquid in the liquid cooling pipe is insulating liquid, and the conductivity of the coolant liquid in the liquid cooling pipe
At 25 DEG C less than 5.0 μ S/cm.
In the present solution, the conductivity of coolant liquid is smaller, it is not easy to block liquid cooling pipe, can increase liquid cooling pipe uses the longevity
Life.
Preferably, being equipped between the stator winding and the liquid cooling pipe and filler strip being isolated along the circumferential direction of the stator；
Along the radial direction of the stator, the length of the isolation filler strip is equal to the length of the stator winding.
In the present solution, isolation filler strip is used to reduce the abrasion condition between liquid cooling pipe and stator winding.
Preferably, the liquid input section is equipped with inlet, the liquid section out is equipped with liquid outlet, and the liquid cooling apparatus further includes drawing
Water assembly and confluence component, the liquid input section and the liquid section out pass through the inlet and liquid outlet realization and institute respectively
Diversion component is stated to be connected to the confluence component.
Preferably, the diversion component and the confluence component are set to the interior zone of the stator core.
In the present solution, diversion component and confluence component make full use of stator interior space, reduce the space of motor about
Beam.
Preferably, the diversion component include the first aqueduct and the second aqueduct, one end of first aqueduct with
The inlet is connected to and in communication with, and one end and the liquid outlet of second aqueduct are connected to and in communication with.
In the present solution, the first aqueduct is used to coolant liquid introducing liquid cooling pipe, coolant liquid is after liquid cooling pipe flows, by going out
Liquid mouth flows into the second aqueduct.
Preferably, first aqueduct and second aqueduct are equipped with seal.
In the present solution, seal improves the safety of liquid cooling apparatus.
Preferably, the confluence component includes the first collecting pipe and the second collecting pipe, first collecting pipe and described the
The other end of one aqueduct is connected to and in communication with, and the other end of second collecting pipe and second aqueduct is connected to and in communication with.
In the present solution, the coolant liquid in the first collecting pipe enters liquid cooling pipe by the first aqueduct, flowed in liquid cooling pipe
It is dynamic, to cool down stator core and stator winding.Coolant liquid gradually heating, finally by the liquid outlet of liquid cooling pipe through the second aqueduct into
Enter the second collecting pipe.
A kind of motor, it is characterized in that, the motor includes above-mentioned stator.
The positive effect of the present invention is that: the present invention by the cooling section of liquid cooling pipe be placed in stator slot and close to stator around
Group is fixed between cooling section and stator winding by frictional force.Coolant liquid flows in liquid cooling pipe, to stator core and stator around
Group plays cooling effect.On the one hand the position setting of cooling section makes full use of the space between stator winding, reduce motor space
Constraint to liquid cooling pipe improves the feasibility of liquid cooling apparatus layout to reduce production cost；On the other hand cooling section is increased
Contact area between stator winding improves the liquid cooling efficiency of motor.Liquid in-out section wears radial passage, so that part is cooling
The inside of stator can be arranged in device, make full use of the inner space of stator, reduce the constraint in motor space, improve liquid cooling dress
Set the feasibility of layout.Cooling section connection in multiple first gaps, it is possible to reduce liquid input section and liquid section etc. out in cooling circuit
Liquid input section entrance and the out quantity and welding times of the seal in liquid section exit is arranged in the quantity of connector, reduction, thus
Cost is reduced, reduces the fault point, increase liquid cooling reliability.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the motor stator of the embodiment of the present invention 1.
Fig. 2 is the schematic perspective view of the another location state of the motor stator of the embodiment of the present invention 1.
Fig. 3 is the stator core of the embodiment of the present invention 1 and the schematic perspective view of liquid cooling pipe.
Fig. 4 is the structural schematic diagram of the stator radial section of the embodiment of the present invention 1.
Fig. 5 is the stator core of the embodiment of the present invention 2 and the schematic perspective view of liquid cooling pipe.
Description of symbols:
10 stator cores
101 stator tooths
102 stator slots
103 radial passages
104 support frids
1041 support baseboards
1042 supporting ribs
20 stator winding
30 slot wedges
40 liquid cooling pipes
401 cooling sections
402 liquid input sections
4021 inlets
403 go out liquid section
4031 liquid outlets
404 linkage sections
50 diversion components
501 first aqueducts
502 second aqueducts
503 seals
60 confluence components
601 first collecting pipes
602 second collecting pipes
70 first gaps
80 Second gaps
90 isolation filler strips
100 slot bottom cushion blocks
Specific embodiment
The present invention is further illustrated below by embodiment, but does not therefore limit the present invention to the embodiment described model
Among enclosing.
Embodiment 1
The present invention relates to the stators in a kind of motor, as shown in Figs 1-4, stator include stator core 10, stator winding 20,
Slot wedge 30 and liquid cooling apparatus.Stator core 10 is stacked by the silicon steel sheet of multiple tooth socket shapes, and stator core 10 includes multiple fixed
Sub- tooth 101 and multiple stator slots 102, two stator winding 20 are respectively wound around two stator tooths adjacent along the circumferential direction of stator
On 101, along each a part of two adjacent stator winding 20 of the circumferential direction of stator, one fixed for carrying in any stator slot 102
First gap 70 is equipped between two stator winding 20 in pilot trench 102.Since the internal structure of different motors is different, so not being
It is designed with first gap 70 between two stator winding 20 in any stator slot 102, need at least guarantee have in a stator slot 102
Two stator winding 20 between be equipped with first gap 70.
Liquid cooling apparatus includes liquid cooling pipe 40, and liquid cooling pipe 40 includes cooling section 401, liquid input section 402 and liquid section 403 out.Liquid cooling
Pipe 40 need to be made of the metal of resistance to pressure and good corrosion resistance, such as stainless steel, copper, and cooling section 401 is set in first gap 70,
Cooling section 401 is connected to and in communication with liquid input section 402, and cooling section 401 is also connected to and in communication with liquid section 403 out.Along the axis of stator
To direction, the height of cooling section 401 is greater than the height of stator core 10；Along the radial direction of stator, the length etc. of cooling section 401
In the length of stator winding 20.Cooling section 401 slightly exceeds stator core 10 along the both ends of stator shaft orientation, so that stator core 10
It can uniformly be cooled down with each section of stator winding 20, also increase the contact area of liquid cooling pipe 40 Yu stator winding 20, improved
Liquid cooling efficiency.In other alternative embodiments, the size of cooling section 401 is not limited to above-mentioned requirements, can be according to reality
Border demand is adjusted, and need to guarantee that at least part of cooling section 401 is set in first gap 70.Slot wedge 30 is set to stator slot
102 top is simultaneously engaged with the top of stator tooth 101, is used for fixed stator winding 20 and liquid cooling pipe 40, is further increased liquid cooling
The fixed stability of pipe 40, and make stator winding 20 and liquid cooling pipe 40 can steady operation while, do not influence other electricity also
Component in machine.
Stator using double-deck centralized 20 structure of stator winding, by the cooling section 401 of liquid cooling pipe 40 be set to stator slot 102 and
It close to stator winding 20, is interference fitted between liquid cooling pipe 40 and stator winding 20, realizes liquid cooling pipe 40 and stator by frictional force
Fixation between winding 20.Coolant liquid flows in liquid cooling pipe 40, plays cooling effect to stator core 10 and stator winding 20.
On the one hand the position setting of cooling section 401 makes full use of the space between stator winding 20, reduce motor space to liquid cooling pipe 40
Constraint improve the feasibility of liquid cooling apparatus layout to reduce production cost；On the other hand it increases cooling section 401 and determines
Contact area between sub- winding 20 improves the liquid cooling efficiency of motor.
Cooling section 401 in two first gaps 70 adjacent along the circumferential direction of stator is connected and is connected by linkage section 404
Logical, the cooling section 401 of two connections is integrally formed, and linkage section 404 is curved pipe structure, facilitates coolant flow.Linkage section 404 is set
In cooling section 401 along the outermost of the radial direction of stator, and the axial direction cooling section 401 along stator is set to higher than stator iron
The part of core 10, to form pipeline that is complete and being convenient for coolant flow.Cooling section 401 in two adjacent first gaps 70
It connection and is integrally formed, it is possible to reduce liquid input section 402 and the quantity of liquid section 403 etc. connectors out in cooling circuit, reduction, which is arranged, to exist
402 entrance of liquid input section and the out quantity and welding times of the seal 503 in 403 exit of liquid section, to reduce cost, reduce
Fault point increases liquid cooling reliability.
In other alternative embodiments, it is not limited to along two adjacent first gaps 70 of the circumferential direction of stator
Cooling section 401 be connected to and in communication with, liquid input section 402 and out liquid section can be separately provided in the cooling section 401 in each first gap 70
403, can also multiple cooling sections 401 circumferentially-adjacent along stator be connected to and in communication with.The liquid cooling pipe 40 of two connections is not limited to one
Molding, can also be spliced by multistage liquid cooling pipe 40, should be noted the reliability of splicing, guarantee that the coolant liquid being placed in pipe will not be let out
Dew.The setting location and shape of linkage section 404 are also not limited to above-mentioned requirements, can be arranged according to the layout of practical liquid cooling apparatus
In different location, while guaranteeing motor liquid cooling efficiency, it is also desirable to be easily installed maintenance, reduce feelings crowded inside motor
Condition.
Liquid input section 402 and out liquid section 403 are parallel to the radial direction of stator, a part of liquid input section 402 and out liquid section 403
A part be set to first gap 70 in.Stator core 10 includes the radial passage that a row is discontinuously stacked by silicon steel sheet and formed
103, for enable liquid input section 402 and out liquid section 403 along stator radially across stator core 10, be equipped in radial passage 103
Support construction.Support construction includes support frid 104, along the axial direction of stator, support the both ends of frid 104 respectively with radial direction
The silicon steel sheet at the both ends in channel 103 connects, and support frid 104 includes support baseboard 1041 and supporting rib 1042, supporting rib 1042
On support baseboard 1041.Liquid input section 402 and liquid section 403 wears radial passage 103 out, so as to by one of liquid cooling apparatus
It is divided into the interior zone of stator, reduces the constraint in motor space, improves the feasibility of liquid cooling apparatus layout.For convenient for wearing,
Along stator shaft orientation direction, the height of radial passage 103 will be equal or slightly larger than liquid input section 402 and the out height of liquid section 403, radial
The height in channel 103 is unsuitable excessively high, too long to avoid stator shaft orientation length and occupy more motor spaces, causes to gather around inside motor
It squeezes.In other alternative embodiments, radial passage 103 is not limited to a row, settable multiple rows of radial passage 103, but
To reduce stator shaft orientation length, the occupied space of stator is reduced, the quantity of radial passage 103 should be reduced to the greatest extent.
The cross sectional shape of liquid cooling pipe 40 is rectangle, at least two faces of liquid cooling pipe 40 and stator winding 20 or stator core 10
Engagement, so as to increase the contact area of liquid cooling pipe 40 Yu stator winding 20, to improve liquid cooling efficiency.It is alternative at other
Embodiment in, other quadrangle forms or non-quadrangle form can be used in the cross sectional shape of liquid cooling, guarantee motor liquid cooling
While efficiency, it is also necessary to be easily installed.
Cooling section 401 includes the more pipelines for being parallel to the axial direction of stator, and the coolant liquid in cooling section 401 mainly flows
It is dynamic to be oriented parallel to stator shaft orientation.Cooling section 401 is using the coil arrangement with even number folding number of passes, the bending place of cooling section 401
Set on cooling section 401 along the both ends of the axial direction of stator, thus guarantee liquid input section 402 and out liquid section 403 can pass through radially
Channel 103.The flow path of coolant liquid in coils is greater than flow path of the coolant liquid in single straight tube, fills convenient for coolant liquid
Divide the heat for absorbing that stator core 10 and stator winding 20 generate, improves liquid cooling efficiency.It is cold in other alternative embodiments
But straight tube structure can also be used in section 401, need to guarantee enough liquid cooling efficiency and be easily installed, rational deployment.
Liquid input section 402 and out liquid section 403 are parallel to the radial direction setting of stator and perpendicular to coolant liquid in liquid cooling pipe 40
In flow mostly to direction, so there are Second gaps between the bottom and liquid cooling pipe 40 of stator slot 102 along stator radial direction
80.To guarantee the fixed stabilization of liquid cooling pipe 40, the bottom of stator slot 102 is equipped with slot bottom cushion block 100, for fill liquid cooling pipe 40 with
Second gap 80 between the bottom of stator slot 102, the stability for keeping liquid cooling pipe 40 fixed improve.
Coolant liquid in liquid cooling pipe 40 is insulating liquid, and the conductivity of the coolant liquid in liquid cooling pipe 40 is less than at 25 DEG C
5.0μS/cm.The conductivity of coolant liquid is smaller, it is not easy to block liquid cooling pipe 40, can increase the service life of liquid cooling pipe 40.
In order to reduce the abrasion condition between cooling section 401 and stator winding 20, in the circumferential direction of stator, stator winding
It is equipped between 20 and cooling section 401 and filler strip 90 is isolated, isolation filler strip 90 is equal to stator winding 20 along fixed along the length of stator radial direction
Sub radial length, isolation filler strip 90 is under the premise of guaranteeing to reduce the abrasion between cooling section 401 and stator winding 20, thickness
Smaller value, such as 1mm should be taken, to reduce the thermal resistance between cooling section 401 and stator winding 20.Because of cooling section 401 and stator
It is interference fitted between winding 20, so isolation pad is first installed after 20 wound stator core 10 of stator winding when assembling stator, then
Liquid cooling pipe 40 is installed, the mutual frictionally of three is fixed.
Liquid input section 402 is equipped with inlet 4021, and liquid section 403 is equipped with liquid outlet 4031 out, and liquid cooling apparatus further includes diversion group
Part 50 and confluence component 60, liquid input section 402 pass through inlet 4021 and the realization of liquid outlet 4031 and diversion with liquid section 403 out respectively
Component 50 is connected to confluence component 60.Diversion component 50 and confluence component 60 are set to the interior zone of stator core 10.Diversion group
Part 50 and confluence component 60 make full use of stator interior space, reduce the space constraint of motor.
Diversion component 50 includes the first aqueduct 501 and the second aqueduct 502, one end of the first aqueduct 501 and feed liquor
Mouth 4021 is connected to and in communication with, and one end and the liquid outlet 4031 of the second aqueduct 502 are connected to and in communication with.First aqueduct 501 and
Two aqueducts 502 are equipped with seal 503, and seal 503 improves the safety of liquid cooling apparatus, prevents in use process
Phenomena such as electric leakage of appearance.The component 60 that converges includes the first collecting pipe 601 and the second collecting pipe 602, the first collecting pipe 601 and the
The other end of one aqueduct 501 is connected to and in communication with, and the other end of the second collecting pipe 602 and the second aqueduct 502 is connected to and in communication with.
For this field, connection type commonly known in the art, such as welding, clip is can be used in those skilled in the art, from
And realize the connection of diversion component 50 and liquid cooling pipe 40 and the connection of diversion component 50 and confluence component 60.It is exhausted in the present embodiment
The structure of edge device 503 and its be the existing skill in this field with the connection type of the first aqueduct 501 and the second aqueduct 502
Art, this will not be repeated here.
After assembling is fixed completely between liquid cooling pipe 40 and stator core 10, stator winding 20 and slot wedge 30, to assembling
Stator later carries out dipping lacquer processing, thus guarantee that liquid cooling pipe 40 can come into full contact with stator core 10 and stator winding 20,
Improve liquid cooling efficiency.The operation of dipping lacquer is the prior art in the present embodiment, and this will not be repeated here.
The present embodiment is using inner stator, the electric machine structure of outer rotor, therefore stator interior space is more broad, can place
The component of other liquid cooling apparatus in addition to liquid cooling pipe 40 such as diversion component 50 and confluence component 60, avoids for these components being mounted on
On other regions inside the motors such as motor end plate, the congested conditions of motor are not only reduced, while also reducing liquid cooling apparatus
Installation difficulty, reduce production cost.
Coolant liquid flows to the first aqueduct 501 from the first collecting pipe 601, then by the first aqueduct 501 from liquid input section 402
Inlet 4021 introduces cooling section 401, and coolant liquid flows in cooling section 401, makes 20 temperature of stator core 10 and stator winding
It reduces, coolant temperature gradually rises, and the liquid outlet 4031 by going out liquid section 403 flows to the second aqueduct 502, then by the second diversion
Pipe 502 introduces the second collecting pipe 602, to complete primary cooling, repeats above-mentioned cooling procedure, constantly cools down stator core 10
With stator winding 20, to keep the temperature of stator core 10 and stator winding 20 not too high, thus influence stator use the longevity
Life.Coolant liquid uses insulating liquid, and flow velocity is usually no more than 3m/s, can guarantee that stator core 10 and stator winding 20 are had
The cooling of effect, when flow velocity is 1m/s, cooling effect is more preferably.Main flow direction of the coolant liquid in cooling section 401 is parallel to
Stator shaft orientation, because the axial length of stator is greater than the radical length of stator slot 102, cooling tube uses coil arrangement again, cooling
Liquid can reduce the folding number of passes of coil pipe along stator shaft orientation flowing, thus the loss during reducing coolant flow.
Embodiment 2
The structure of the present embodiment is substantially the same manner as Example 1, the difference is that, the structure of cooling section 401 is different.
As shown, cooling section 401, using a plurality of straight tube structure in parallel, coolant liquid enters cooling section 401 by liquid input section 402
Afterwards, while to the both ends of stator core 10 it flows, coolant liquid can flow in more straight tubes simultaneously, accelerate cooling velocity, improve
Cooling efficiency.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (20)
1. a kind of stator, including stator core, stator winding, the stator core stacked by the silicon steel sheet of multiple tooth socket shapes and
At the stator core includes multiple stator tooths and multiple stator slots, and two stator winding are respectively wound around along the stator
Adjacent two stator tooths of circumferential direction on, carrying is adjacent along the circumferential direction of the stator in any stator slot
It is empty to be equipped with first between two stator winding at least one described stator slot for each a part of two stator winding
Gap, which is characterized in that the stator further includes liquid cooling apparatus, and the liquid cooling apparatus includes liquid cooling pipe, and the liquid cooling pipe includes cold
But section, liquid input section and liquid section, the cooling section are connected to and in communication with the liquid input section out, the cooling section and it is described go out liquid Duan Lian
It connects and is connected to, at least part of the cooling section is set in the first gap.
2. stator as described in claim 1, which is characterized in that the cooling section is at least set to the circumferential direction along the stator
In the first gap of adjacent two, the liquid cooling pipe further includes the cooling section connected in the two adjacent first gaps
Linkage section.
3. stator as described in claim 1, which is characterized in that the liquid input section and the liquid section out are parallel to the stator
A part of radial direction, a part of the liquid input section and the liquid section out is set in the first gap.
4. stator as claimed in claim 3, which is characterized in that the stator core include an at least row by the silicon steel sheet not
The continuous radial passage for stacking and being formed, equipped with support construction in the radial passage.
5. stator as claimed in claim 4, which is characterized in that the quantity of the radial passage is one.
6. stator as claimed in claim 4, which is characterized in that the support construction includes support frid, along the stator
The both ends of axial direction, the support frid are connect with the silicon steel sheet at the both ends of the radial passage respectively, the support frid
Including support baseboard and supporting rib, the supporting rib is set on the support baseboard.
7. stator as claimed in claim 6, which is characterized in that along the axial direction of the stator, the height of the supporting rib
Greater than the height of the height of the liquid input section and the liquid section out, the liquid input section and the liquid section out are arranged in the radial direction and lead to
Road, for a part of the liquid cooling apparatus to be set to the interior zone of the stator.
8. stator as described in claim 1, which is characterized in that the cross sectional shape of the liquid cooling pipe is quadrangle, the liquid cooling
At least two faces of pipe are engaged with the stator winding or the stator core.
9. stator as described in claim 1, which is characterized in that the cooling section includes the more axial directions for being parallel to the stator
The pipeline in direction.
10. stator as claimed in claim 9, which is characterized in that the cooling section is coil arrangement, the bending of the cooling section
Place is set to the cooling section along the both ends of the axial direction of the stator.
11. stator as claimed in claim 10, which is characterized in that the bottom of the stator slot is equipped with slot bottom cushion block, the slot
Heelpiece block is used to fill the Second gap between the liquid cooling pipe and the bottom of the stator slot.
12. stator as claimed in claim 9, which is characterized in that the cooling section is a plurality of straight tube structure in parallel.
13. stator as described in claim 1, which is characterized in that the coolant liquid in the liquid cooling pipe is insulating liquid, and described
The conductivity of coolant liquid in liquid cooling pipe is at 25 DEG C less than 5.0 μ S/cm.
14. stator as described in claim 1, which is characterized in that along the circumferential direction of the stator, the stator winding and institute
It states and is equipped with isolation filler strip between liquid cooling pipe；Along the radial direction of the stator, the length of the isolation filler strip is equal to the stator
The length of winding.
15. stator as described in claim 1, which is characterized in that the liquid input section is equipped with inlet, and the liquid section out is equipped with
Liquid mouth, the liquid cooling apparatus further include diversion component and confluence component, and the liquid input section and the liquid section out pass through described respectively
Inlet and liquid outlet realization are connected to the diversion component and the confluence component.
16. stator as claimed in claim 15, which is characterized in that the diversion component and the confluence component are set on described fixed
The interior zone of sub- iron core.
17. stator as claimed in claim 15, which is characterized in that the diversion component includes the first aqueduct and the second diversion
Pipe, one end and the inlet of first aqueduct are connected to and in communication with, one end of second aqueduct and the liquid out
Mouth is connected to and in communication with.
18. stator as claimed in claim 17, which is characterized in that first aqueduct and second aqueduct are equipped with
Seal.
19. stator as claimed in claim 17, which is characterized in that the confluence component includes the first collecting pipe and the second confluence
Pipe, the other end of first collecting pipe and first aqueduct are connected to and in communication with, second collecting pipe and described second
The other end of aqueduct is connected to and in communication with.
20. a kind of motor, which is characterized in that the motor includes the stator as described in any one of claim 1-19.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303694.9A CN109951024B (en) | 2019-04-16 | 2019-04-16 | Stator reaches motor including it |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303694.9A CN109951024B (en) | 2019-04-16 | 2019-04-16 | Stator reaches motor including it |
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| Publication Number | Publication Date |
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| CN109951024A true CN109951024A (en) | 2019-06-28 |
| CN109951024B CN109951024B (en) | 2020-07-10 |
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| CN201910303694.9A Active CN109951024B (en) | 2019-04-16 | 2019-04-16 | Stator reaches motor including it |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350688A (en) * | 2019-07-18 | 2019-10-18 | 浙江大学 | Stator and motor including it |
| CN113300506A (en) * | 2021-05-28 | 2021-08-24 | 上海大学 | Slot wedge type in-slot liquid cooling motor |
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| CN107276266A (en) * | 2017-08-02 | 2017-10-20 | 华中科技大学 | A kind of two-way cooling oil-cooled motor |
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| CN100488006C (en) * | 1999-10-28 | 2009-05-13 | 沙迪克株式会社 | Linear motor coil assembly and method for manufacturing the same |
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| CN110350688B (en) * | 2019-07-18 | 2020-06-12 | 浙江大学 | Stator and motor comprising same |
| CN113300506A (en) * | 2021-05-28 | 2021-08-24 | 上海大学 | Slot wedge type in-slot liquid cooling motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109951024B (en) | 2020-07-10 |
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