CN109802524A - A kind of Wound brushless double-feeding motor with novel cooling structure - Google Patents
A kind of Wound brushless double-feeding motor with novel cooling structure Download PDFInfo
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- CN109802524A CN109802524A CN201910216738.4A CN201910216738A CN109802524A CN 109802524 A CN109802524 A CN 109802524A CN 201910216738 A CN201910216738 A CN 201910216738A CN 109802524 A CN109802524 A CN 109802524A
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Abstract
A kind of Wound brushless double-feeding motor with novel cooling structure, belong to technical field of motors, the present invention is high in order to solve the problems, such as existing large capacity Wound brushless double-feeding motor temperature, armature spindle is installed on the base by bearing, stator core is installed on the inner wall of base, stator winding is installed in stator core, rotor core is located in stator core, rotor windings are installed in rotor core, stator core is provided with the netted cold water pipe of stator and stator ring-type ventilating duct, the netted cold water pipe both ends of stator pass through base and are connected with cold water driving device, the netted ventilating duct of rotor is equipped in rotor core, convex heat-conducting plate is additionally provided on the inner wall of base, convex heat-conducting plate is corresponding with the cold water driving device outside stator, invention enhances the heat-sinking capabilities of large capacity Wound brushless double-feeding motor, reduce motor internal loss.
Description
Technical field
The present invention relates to a kind of brushless dual-feed motors, and in particular to a kind of with the brushless double-fed of novel cooling structure
Machine belongs to technical field of motors.
Background technique
Brushless dual-feed motor has the characteristics that operational reliability height, speed-regulating range width, compared with general motor, brushless double feed
Motor has two sets of stator winding: power winding and control winding, frequency inverter capacity only need to be with the undertaken power of control winding
Match, this makes the operating cost of brushless dual-feed motor lower than general motor.However, since brushless dual-feed motor is special
Winding construction makes brushless dual-feed motor harmonic wave even more serious compared with ordinary motor, the slot ripples of Wound brushless double-feeding motor
Winding construction effectively reduces harmonic wave, but motor harmonic wave is still higher than traditional structure motor, brings this phenomenon of motor overheating, passes
System brushless dual-feed motor ventilation cooling system cannot timely distribute the heat of component each inside Wound brushless double-feeding motor
It goes out, causes motor internal temperature to rise, reduce electric efficiency, accelerate the aging of motor built-in electrical insulation structure, serious prestige
The safe and stable operation of large capacity brushless dual-feed motor has been coerced, while having limited the development of brushless dual-feed motor high capacity.
In order to effectively take away the heat of Wound brushless double-feeding motor stator copper winding and rotor copper winding, coiling is reduced
The temperature of the stator core of formula brushless dual-feed motor and rotor core can take the wound brushless with novel cooling structure double
Generating aid can effectively take away the heat of cooling gas in motor by the cooling water in stator core inner conduit, and it is fixed to reduce
The temperature of sub- copper winding, while stator ring-type ventilating duct is effectively increased the radiating efficiency of stator core circumferential direction, rotor core
Internal netted ventilating duct improves the radiating efficiency of rotor core and rotor windings under the turning effort of rotor, using around
The novel self-loopa ventilation cooling system of wire type brushless dual-feed motor can accelerate stator region and rotor region gas flowing speed
Degree increases the contact area of cooling gas and stator core, rotor core, improves the power of Wound brushless double-feeding motor
Density and reliability ensure that large capacity Wound brushless double-feeding motor being capable of long-term safety, stable operation.
Summary of the invention
It is above-mentioned to solve the object of the present invention is to provide a kind of Wound brushless double-feeding motor with novel cooling structure
Technical problem.
A kind of Wound brushless double-feeding motor with novel cooling structure, it is characterised in that: including stator core, rotor
Iron core, armature spindle, stator copper winding, rotor copper winding, the netted cold water pipe of stator, the netted ventilating duct of rotor, the ventilation of stator ring-type
Road, cold water driving device, convex heat-conducting plate, base, bearing；
Armature spindle is mounted on base by bearing, and rotor core is equipped on armature spindle, be equipped in rotor core rotor around
Group is equipped with stator core on the inner wall of base, stator winding is equipped in stator core, rotor core is located in stator core
And between the two there are installation gap, the netted cold water pipe of stator and stator ring-type ventilating duct are located in stator core, and stator is netted
The both ends of cold water pipe are each passed through base and are connected with the entrance and exit of cold water driving device, and rotor is equipped with inside rotor core
Netted ventilating duct, the inner wall of base are equipped with convex heat-conducting plate, are provided with stator slot in stator core, are provided with rotor in rotor core
Slot.
It is preferred: the existing netted cold water pipe of stator axially cooled down of stator side, and have circumferentially cooling stator ring-type logical
Air duct, two covering devices are mutually indepedent.
Preferred: the netted ventilating duct of rotor is reticular structure, axial to extend to rotor yoke, radical length from rotor teeth portion
It is equal with core length.
Preferred: the netted cold water pipe of stator is mounted in stator core, close stator winding on the outside of the netted cold water pipe of stator,
The sectional area of the netted cold water pipe of stator is circle, and circular diameter is 4-8mm, flow of cooling water speed in the netted cold water pipe of stator
For 1m/s-3m/s, the quantity that stator core yoke portion opens up stator ring-type ventilating duct is 6, the sectional area of stator ring-type ventilating duct
For circle, circular diameter is 4-8mm.
Preferred: the netted ventilating duct of rotor and the netted cold water pipe of stator are using brushless dual-feed motor central cross-section as symmetry axis
Symmetrically, convex heat-conducting plate is uniformly distributed along base inner surface, and the quantity of convex heat-conducting plate is 10-20, convex heat-conducting plate
Height be less than stator core yoke height.
Preferred: the netted ventilating duct inlet area of the rotor is larger, and the area of section of the netted ventilating duct of rotor is along axis
It is gradually reduced to direction.
Preferred: the thermally conductive plate shape of the convex is cylindricality.
The present invention has the effect that large capacity Wound brushless double-feeding motor compared with existing product, and stator core is determined
Sub- copper winding, rotor core and rotor copper heating in winding are more serious, and the present invention is in Wound brushless double-feeding motor stator core
Embedded water pipe and cyclic annular ventilating duct, also open up netted ventilating duct and rotating in a circumferential direction using phase-wound rotor in rotor core
Effect, forms a kind of Wound brushless double-feeding motor with water injection type cooling device and multidirectional self-loopa ventilating system.It is logical
The cooling water in water pipe is crossed, the heat in stator core can be effectively taken away, reduces the temperature of stator copper winding, it is fixed to reduce
The thermal stress in sub- copper axis of winding direction, it will be apparent that reduce the temperature of stator copper winding.Utilize multidirectional self-loopa ventilating and cooling
The cooling gas flowed in system can effectively take away the heat inside stator core and rotor core, increase stator core and
The heat-sinking capability on rotor core surface improves the utilization rate of cooling gas inside brushless dual-feed motor, it will be apparent that reduce nothing
The stator core of brush double feedback electric engine, stator copper winding, rotor core and rotor copper winding temperature, improve brushless dual-feed motor
Cooling capacity and power density also reduce the weight of brushless dual-feed motor, save stator core and rotor core silicon steel sheet
Material reduces costs, and effectively improves the temperature capacity inside Wound brushless double-feeding motor.
Detailed description of the invention
Fig. 1 is a kind of structural representation of Wound brushless double-feeding motor with novel cooling structure of the present invention
Figure.
Fig. 2 is a kind of cuing open for Wound brushless double-feeding motor circumferencial direction with novel cooling structure of the present invention
View.
Fig. 3 is stator ring-type air duct structure schematic diagram of the present invention.
Fig. 4 is a kind of wound brushless duplex feeding with novel cooling structure described in the specific embodiment of the invention two
The axial directional cross sectional view of machine.
Fig. 5 is a kind of wound brushless duplex feeding with novel cooling structure described in the specific embodiment of the invention three
The circumferencial direction cross-sectional view of machine.
Fig. 6 is a kind of wound brushless duplex feeding with novel cooling structure described in the specific embodiment of the invention four
The axial directional cross sectional view of machine.
In figure: 1- stator core；2- rotor core；3- armature spindle；4- stator copper winding；5- rotor copper winding；6- stator
Netted cold water pipe；The netted ventilating duct of 7- rotor；8- stator ring-type ventilating duct；9- cold water driving device；10- convex heat-conducting plate；11-
Base；12- bearing.
Specific embodiment
The preferred embodiment of the present invention is elaborated below according to attached drawing.
Specific embodiment one, it is as shown in Figure 1, Figure 2 and Figure 3, of the present invention a kind of with novel cooling structure
Wound brushless double-feeding motor includes 1- stator core；2- rotor core；3- armature spindle；4- stator copper winding；5- rotor copper around
Group；The netted cold water pipe of 6- stator；The netted ventilating duct of 7- rotor；8- stator ring-type ventilating duct；9- cold water driving device；10- convex
Heat-conducting plate；11- base；12- bearing；
Armature spindle 3 is mounted on base 10 by bearing 12, and rotor core 2 is equipped on armature spindle 3, is installed in rotor core 2
There are rotor windings 5, stator core 1 is installed on the inner wall of base 11, stator winding 4, rotor core are installed in stator core 1
2 in stator core 1 and between the two there are gap is installed, and it is fixed that the netted cold water pipe 6 of stator and stator ring-type ventilating duct 8 are located at
In sub- iron core 1, the both ends of the netted cold water pipe 6 of stator are each passed through base 11 and are connected with the entrance and exit of cold water driving device 9
It connects, the netted ventilating duct 7 of rotor is equipped with inside rotor core 2, the inner wall of base 11 is equipped with convex heat-conducting plate 10, stator core 1
On be provided with stator slot, be provided with rotor slot in rotor core 2.
Further, the teeth portion of rotor core 2 and yoke portion are provided with the netted ventilating duct 7 of rotor, the netted ventilating duct sectional area of rotor
For circle, it is interconnected inside the netted ventilating duct 7 of rotor.
Further, stator ring-type ventilating duct 8 is provided with inside stator core 1, circumferentially section is circle to stator ring-type ventilating duct 8
Ring-shaped is interconnected between adjacent channel；
Further, stator copper winding 4 is mounted in stator slot, the netted cold water pipe 6 of stator is opened up in stator core 1, stator is netted
Cold water pipe 6 is circle through the teeth portion of stator core 1, yoke portion and close stator copper winding 4, netted 6 sectional area of cold water pipe of stator,
Circular diameter is 4-8mm；Flow of cooling water speed is 1m/s-3m/s in the netted cold water pipe 6 of stator；
Further, the netted cold water pipe 6 of stator ring-type ventilating duct 8, stator and the netted ventilating duct 7 of rotor are with wound brushless double-fed
Bilateral symmetry, convex heat-conducting plate 10 are uniformly distributed along 11 surface of base centered on motor center section, the number of convex heat-conducting plate 10
Amount is 10-20, and the height of convex heat-conducting plate 10 is equal to or less than the height of 1 yoke of stator core.
There are also the rotors inside rotor core 2 for the netted cold water pipe 6 of stator and stator ring-type ventilating duct 8 inside stator core
Netted ventilating duct 7 constitutes the Wound brushless double-feeding motor with water-cooling structure and multidirectional self-loopa ventilating system.Pass through stator
The netted cold water pipe 6 of stator can effectively take away the heat in stator core 1 and stator copper winding 4 in iron core 1, it will be apparent that reduce
The temperature of stator copper winding and the thermal stress of axial direction, stator ring-type ventilating duct 8 are used as the measure of stator side auxiliary heat dissipation, add
Strong circumferencial direction heat dissipation effect, reinforces the heat dissipation effect of stator core 1, by adjusting the water flow velocity in the netted cold water pipe 6 of stator
Degree, can effectively inhibit temperature rise of the Wound brushless double-feeding motor under different operating conditions；Turned using Wound brushless double-feeding motor
The turning effort of son, cooling gas flowing inside driving Wound brushless double-feeding motor, cooling gas is from stator ring-type ventilating duct 8
Side flows into and flows out from the other side, reaches convex heat-conducting plate 10 from the cooling gas of the outlet of stator ring-type ventilating duct 8 outflow, cold
But the heat of gas can fully be taken away by convex heat-conducting plate 10, and the heat of convex heat-conducting plate 10 is further through stator net in base
Cooling water in shape cold water pipe 6 is taken away, and the temperature of cooling gas inside Wound brushless double-feeding motor is significantly reduced, and reduces
Cooling gas after temperature reaches the netted ventilating duct 7 of rotor, into rotor core 2, it will be apparent that improve inside rotor core 2
Surface coefficient of heat transfer, the cooling gas flowed out from the netted ventilating duct 7 of rotor passes through air gap, enters back into stator ring-type ventilating duct 8, complete
It is recycled at gas.
Specific embodiment 2: embodiment is described with reference to Fig. 4, the difference of present embodiment and embodiment one
It is that the connection circuitry number inside the netted ventilating duct 7 of rotor increases, accelerates circulation speed of the cooling gas inside rotor core 2
Degree, improves 2 interior surface coefficient of heat transfer of rotor core, effectively improves cooling gas and take away 2 internal heat of rotor core
Ability, further reduced 2 temperature of rotor core, other composition and connection relationship it is identical as embodiment one.
Specific embodiment 3: the difference of embodiment is described with reference to Fig.5, present embodiment and embodiment one
It is that the quantity of 1 inner stator ring-type ventilating duct 8 of the netted ventilating duct 7 of 2 internal rotor of rotor core and stator core is increased, together
When enhance the cooling effect of rotor core 2 and stator core 1, can effectively improve cooling gas take away Wound-rotor type without
The ability of brush double feedback electric engine internal heat further reduced stator core 1, rotor core 2, stator copper winding 4 and rotor copper
The temperature of winding 5.Other compositions and connection relationship are identical as embodiment one.
Specific embodiment 4: the difference of embodiment is described with reference to Fig.6, present embodiment and embodiment one
It is that convex heat-conducting plate 10 is tooth form, increases the contact area of cooling gas Yu convex heat-conducting plate 10, can effectively take away
The heat of cooling gas inside Wound brushless double-feeding motor, further reduced stator core 1, rotor core 2, stator copper around
Group 4, the temperature of rotor copper winding 4.Other compositions and connection relationship are identical as embodiment one.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. a kind of Wound brushless double-feeding motor with novel cooling structure, it is characterised in that: including stator core (1), turn
Sub- iron core (2), armature spindle (3), stator copper winding (4), rotor copper winding (5), the netted cold water pipe of stator (6), rotor are netted logical
Air duct (7), stator ring-type ventilating duct (8), cold water driving device (9), convex heat-conducting plate (10), base (11), bearing (12)；
The armature spindle (3) is mounted on base (10) by bearing (12), and rotor core (2) are equipped on armature spindle (3), is turned
It is equipped with rotor windings (5), is equipped on the inner wall of base (11) stator core (1) on sub- iron core (2), in stator core (1)
It is equipped with stator winding (4), rotor core (2) is located in stator core (1) and between the two there are installation gap, and stator is netted
Cold water pipe (6) and stator ring-type ventilating duct (8) are located in stator core (1), and the both ends of the netted cold water pipe of stator (6) are each passed through
Base (11) is connected with the entrance and exit of cold water driving device (9), and the netted ventilating duct of rotor is equipped with inside rotor core (2)
(7), the inner wall of base (11) is equipped with convex heat-conducting plate (10), is provided with stator slot in stator core (1), in rotor core (2)
It is provided with rotor slot.
2. a kind of Wound brushless double-feeding motor with novel cooling structure according to claim 1, it is characterised in that:
The existing netted cold water pipe of stator (6) axially cooled down of stator side in the cooling structure, and have circumferentially cooling track ring
Shape ventilating duct (8), two covering devices are mutually indepedent.
3. a kind of Wound brushless double-feeding motor with novel cooling structure according to claim 1, it is characterised in that:
The netted ventilating duct of rotor (7) is reticular structure, axial equal with core length to length radially adjacent to rotor teeth portion.
4. a kind of Wound brushless double-feeding motor with novel cooling structure according to claim 2, it is characterised in that:
The netted cold water pipe of stator (6) is mounted in stator core (1), close stator copper winding (4) on the outside of the netted cold water pipe of stator (6),
The sectional area of the netted cold water pipe of stator (6) is circle, and circular diameter is 4-8mm, cooling water flow in the netted cold water pipe of stator (6)
Dynamic speed is 1m/s-3m/s, and the quantity that stator core (1) yoke portion opens up stator ring-type ventilating duct (8) is 6, and stator ring-type is logical
The sectional area in air duct (8) is circle, and circular diameter is 4-8mm.
5. a kind of Wound brushless double-feeding motor with novel cooling structure according to claim 3, it is characterised in that:
The netted ventilating duct of rotor (7) and the netted cold water pipe of stator (6) using brushless dual-feed motor central cross-section as symmetry axis bilateral symmetry,
Convex heat-conducting plate (10) is uniformly distributed along base (11) inner surface, and the quantity of convex heat-conducting plate (10) is 10-20, and convex is thermally conductive
The height of plate (10) is less than the height of stator core (1) yoke.
6. a kind of Wound brushless double-feeding motor with novel cooling structure according to claim 3, it is characterised in that:
The netted ventilating duct of the rotor (7) inlet area is larger, and the area of section of the netted ventilating duct of rotor (6) is in axial direction gradually
Reduce.
7. a kind of new structure brushless dual-feed motor according to claim 1, it is characterised in that: the convex heat-conducting plate
(10) shape is convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216738.4A CN109802524A (en) | 2019-03-21 | 2019-03-21 | A kind of Wound brushless double-feeding motor with novel cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216738.4A CN109802524A (en) | 2019-03-21 | 2019-03-21 | A kind of Wound brushless double-feeding motor with novel cooling structure |
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| Publication Number | Publication Date |
|---|---|
| CN109802524A true CN109802524A (en) | 2019-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910216738.4A Pending CN109802524A (en) | 2019-03-21 | 2019-03-21 | A kind of Wound brushless double-feeding motor with novel cooling structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2419475A (en) * | 2004-10-22 | 2006-04-26 | Newage Int Ltd | Laminated structure of an electric machine with cooling fluid flow paths |
| US20130113311A1 (en) * | 2011-09-30 | 2013-05-09 | Hamilton Sundstrand Corporation | Internal cooling of magnetic core for electric machine |
| CN106026450A (en) * | 2016-05-19 | 2016-10-12 | 哈尔滨理工大学 | Turbonator cooling system provided with water cooling stator and inner fan type rotor |
| CN108649749A (en) * | 2018-06-13 | 2018-10-12 | 哈尔滨理工大学 | A kind of switched reluctance machines with water injection type winding and axis-diameter-Zhou Duoxiang self-loopa ventilating systems |
| CN108711964A (en) * | 2018-06-13 | 2018-10-26 | 哈尔滨理工大学 | A kind of permanent magnet motor with built-in multistage fan formula two-way self-loopa ventilation cooling system |
-
2019
- 2019-03-21 CN CN201910216738.4A patent/CN109802524A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2419475A (en) * | 2004-10-22 | 2006-04-26 | Newage Int Ltd | Laminated structure of an electric machine with cooling fluid flow paths |
| US20130113311A1 (en) * | 2011-09-30 | 2013-05-09 | Hamilton Sundstrand Corporation | Internal cooling of magnetic core for electric machine |
| CN106026450A (en) * | 2016-05-19 | 2016-10-12 | 哈尔滨理工大学 | Turbonator cooling system provided with water cooling stator and inner fan type rotor |
| CN108649749A (en) * | 2018-06-13 | 2018-10-12 | 哈尔滨理工大学 | A kind of switched reluctance machines with water injection type winding and axis-diameter-Zhou Duoxiang self-loopa ventilating systems |
| CN108711964A (en) * | 2018-06-13 | 2018-10-26 | 哈尔滨理工大学 | A kind of permanent magnet motor with built-in multistage fan formula two-way self-loopa ventilation cooling system |
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Application publication date: 20190524 |