CN104734387A - Motor applicable to large-sized water pumps and having good cooling structure - Google Patents
Motor applicable to large-sized water pumps and having good cooling structure Download PDFInfo
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- CN104734387A CN104734387A CN201510177806.2A CN201510177806A CN104734387A CN 104734387 A CN104734387 A CN 104734387A CN 201510177806 A CN201510177806 A CN 201510177806A CN 104734387 A CN104734387 A CN 104734387A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/08—Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a motor applicable to large-sized water pumps and having a good cooling structure. The motor comprises a shell, a stator, a rotor and a rotor shaft; the stator is fixedly connected within an inner cavity of the shell; the rotor is fixedly connected to the rotor shaft; the rotor shaft is connected to the shell through a bearing; the rotor faces the stator; the rotor and the stator divide the shell into an upper cavity in the upper portion of the shell and a lower cavity in the lower portion of the shell; a first air passage is provided between the rotor and the rotor shaft; the upper cavity and the lower cavity are communicated with each other through the first air passage; a second air passage allowing the upper cavity and the lower cavity to be communicated with each other is further provided between the upper cavity and the lower cavity; the motor further comprises an axial-flow fan fixedly connected to the rotor shaft. The motor has good cooling performance and has fewer burnouts caused by poor cooling performance.
Description
Technical field
The present invention relates to a kind of motor, relate in particular to a kind of large diving electric motor for pump with good radiating structure.
Background technology
Immersible pump is widely used in fields such as flood control, water drainage, city planting ductwork, agriculture plumbing and sewage disposals.Due to electromechanical, compact conformation, rapidly, power also improves constantly in development.At present, comparatively common at more than 400KW of the submersible pump design power of China.Large diving electric motor for pump refers to that voltage is the high-voltage motor of 10KV, and the power of motor is generally at more than 400KW.Submersible axial flow pump complete machine is dived beneath the water operation, and the heat dispersal situations of motor is good, but along with the continuous increase of power, motor radiating becomes the problem that must solve.Because power increases, the motor feels hot, and amount increases, motor radiating difficulty.Because the air gap between rotor is very little, gas flow difficulty, especially easily generates heat.Occur in recent years, much because motor overheating causes stators and rotators to expand, to cause stators and rotators to rub mutually, and then the accident of burn-down of electric motor.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of large diving electric motor for pump with good radiating structure, this motor has good heat dispersion, reduces the burn-down of electric motor accident occurred because heat dispersion is not good.
For solving the problems of the technologies described above, the technical scheme that the embodiment of the present invention adopts is:
A kind of large diving electric motor for pump with good radiating structure, this motor comprises casing, stator, rotor and armature spindle, and stator is fixedly connected in the inner chamber of casing, and rotor is fixedly connected on armature spindle, armature spindle is connected on casing by bearing, and rotor is relative with stator; Casing is separated into the casing epicoele being positioned at casing top and the casing cavity of resorption being positioned at casing bottom by described rotor and stator; The first air duct is provided with between described rotor and armature spindle; First air duct is communicated with casing epicoele and casing cavity of resorption; The second air duct being communicated with casing epicoele and casing cavity of resorption is also provided with between casing epicoele and casing cavity of resorption; Described motor also comprises aerofoil fan, and aerofoil fan is fixedly connected on armature spindle.
As a kind of embodiment, described aerofoil fan comprises wheel hub, blade and air-ducting ring, and blade is between wheel hub and air-ducting ring, and blade two ends are fixedly connected with air-ducting ring with wheel hub respectively; Wheel hub is fixedly connected on armature spindle, and aerofoil fan is positioned at the outside of rotor.
As a kind of embodiment, one end of described air-ducting ring is near blade, and the other end of air-ducting ring is connected with the end face seal of rotor.
As a kind of embodiment, described aerofoil fan is two, and an aerofoil fan is positioned at the top of rotor, and another aerofoil fan is positioned at the below of rotor, and two aerofoil fans are all relative with the first air duct.
As a kind of embodiment, the outside wall surface of described rotor is provided with the spiral groove laid along rotor axial.
As a kind of embodiment, described spiral groove is from the through bottom surface to rotor of the end face of rotor.
As a kind of embodiment, described spiral groove is contrary with the pumping direction of aerofoil fan to gas to the pumping direction of gas between rotor and stator.
As a kind of embodiment, the second described air duct is the clearance channel arranged between stator and casing.
As a kind of embodiment, the second described air duct is ventilation duct, and ventilation duct is connected on casing by upper ventilation flange and lower ventilation flange, and ventilation duct is positioned at the outside of casing.
As a kind of embodiment, on described casing, the position of corresponding stator is annular groove, and ventilation duct is located in this annular groove; Upper ventilation flange is positioned at the top of annular groove, and is fixedly connected on casing; Lower ventilation flange is positioned at the bottom of annular groove, and is fixedly connected on casing; Ventilation duct is circumferentially evenly laid in the outer surface of casing, and ventilation duct is made up of seamless steel pipe.
Compared with prior art, technical scheme tool of the present invention has the following advantages:
1. whole motor excellent heat dissipation performance.The motor of the embodiment of the present invention, by the first air duct, the second air duct, forms a circular passage between casing epicoele and casing cavity of resorption.During machine operation, rotor and armature spindle rotate, and drive the aerofoil fan be fixedly connected on armature spindle to rotate.Aerofoil fan produces pumping effect to gas.Gas flows in circular passage, in the second air duct, carry out heat exchange with extraneous current, in the first air duct, carry out heat exchange with the rotor of high temperature.Circulation like this, to reach the object reducing rotor and stator temperature.By arranging aerofoil fan in the present embodiment, the flowing velocity of gas can be accelerated, and then in time cooling process be carried out to rotor and stator.
2. the excellent heat dissipation performance between stators and rotators.The embodiment of the present invention by arranging spiral groove on rotor outer wall, do not change motor rotor construction, to the gas in the air gap formed between stators and rotators, create motor pumping effect, and Be very effective, the gas flow solving the easiest heating part in motor is corresponded topic, makes motor have outstanding heat-sinking capability, extends motor useful life.
3., because aerofoil fan outer ring is provided with air-ducting ring, the flowing of gas inside and outside air-ducting ring is not interfere with each other, and the efficiency of aerofoil fan improves greatly, and size reduces.Therefore, driven by motor aerofoil fan rotates the energy consumed and greatly reduces.Meanwhile, aerofoil fan is arranged on armature spindle, and aerofoil fan is followed armature spindle and rotated, and do not need additionally to arrange power set and drive aerofoil fan work, structure is compacter, ingenious.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present invention.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is a kind of structural representation of Axial-Flow fan of the present invention.
Fig. 4 is a kind of front view of rotor of the present invention.
Fig. 5 is the structural representation of the another kind of embodiment of the present invention.
Fig. 6 is the B-B profile of Fig. 5.
In figure: casing 1, stator 2, rotor 3, armature spindle 4, casing epicoele 5, casing cavity of resorption 6, first air duct 7, aerofoil fan 8, wheel hub 801, blade 802, air-ducting ring 803, groove 9, clearance channel 10, ventilation duct 11, upper ventilation flange 12, lower ventilation flange 13.
Embodiment
Below by embodiment also by reference to the accompanying drawings, technical scheme of the present invention and effect thereof are further described.
As depicted in figs. 1 and 2, a kind of large diving electric motor for pump with good radiating structure of the present invention, comprises casing 1, stator 2, rotor 3 and armature spindle 4.Stator 2 is fixedly connected in the inner chamber of casing 1, and rotor 3 is fixedly connected on armature spindle 4, and armature spindle 4 is connected on casing 1 by bearing.Rotor 3 is relative with stator 2.Casing 1 is separated into the casing epicoele 5 being positioned at casing 1 top and the casing cavity of resorption 6 being positioned at casing 1 bottom by rotor 3 and stator 2.The first air duct 7 is provided with between rotor 3 and armature spindle 4.First air duct 7 is communicated with casing epicoele 5 and casing cavity of resorption 6.The second air duct being communicated with casing epicoele 5 and casing cavity of resorption 6 is also provided with between casing epicoele 5 and casing cavity of resorption 6.Motor also comprises aerofoil fan 8, and aerofoil fan 8 is fixedly connected on armature spindle 4.
The large diving electric motor for pump of said structure, the first air duct 7, second air duct, a formation circular passage between casing epicoele 5 and casing cavity of resorption 6.During machine operation, rotor 3 and armature spindle 4 rotate, and drive the aerofoil fan 8 be fixedly connected on armature spindle 4 to rotate.Aerofoil fan 8 pairs of gases produce pumping effect.As shown in Figure 1, aerofoil fan 8 pairs of gases produce pumping effect upwards.Gas in casing cavity of resorption 6 is entered in casing epicoele 5 by the first air duct 7.Gas in casing epicoele 5 enters in casing cavity of resorption 6 by the second air duct, forms the circulation of gas.Time in gas flow to the second air duct, gas carries out heat exchange with the current being positioned at hull outside.Gas after cooling enters in casing cavity of resorption 6.Under the effect of aerofoil fan 8, the gas after cooling flows to the first air duct 7 from casing cavity of resorption 6, carries out heat exchange with high-temperature rotor 3, reduces the temperature of rotor 3, guarantees that rotor 3 and stator 2 work at a suitable temperature.Gas after intensification flow to casing epicoele 5 from the first air duct 7, then enters in second channel, carries out heat exchange with extraneous current.Circulation like this, to reach the object reducing rotor 3 and stator 2 temperature.By arranging aerofoil fan 8 in the present embodiment, the flowing velocity of gas can be accelerated, and then in time cooling process be carried out to rotor 3 and stator 2.Meanwhile, aerofoil fan 8 is arranged on armature spindle 4, and aerofoil fan 8 is followed armature spindle 4 and rotated, and do not need additionally to arrange power set and drive aerofoil fan 8 to work, structure is compacter, ingenious.The present embodiment chosen axis flow fan, its size is little, does not take redundant space, and structure is simple, and efficiency is high.
As a kind of preferred embodiment, as shown in Figure 3, described aerofoil fan 8 comprises wheel hub 801, blade 802 and air-ducting ring 803, and blade 802 is between wheel hub 801 and air-ducting ring 803, and blade 802 two ends are fixedly connected with air-ducting ring 803 with wheel hub 801 respectively; Wheel hub 801 is fixedly connected on armature spindle 4, and aerofoil fan 8 is positioned at the outside of rotor 3.In the present embodiment, wheel hub 801 is fixedly connected on armature spindle 4.Drive wheel hub 801 to rotate by armature spindle 4, do not need for aerofoil fan 8 provides extra power.Air-ducting ring 803 is set simultaneously, the gas of flowing is led, can improve and utilize gas to carry out the effect of dispelling the heat.The rotation of blade 802, can drive ambient gas to flow, but not arrange air-ducting ring 803, and the flowing of gas is unordered.After arranging air-ducting ring 803, the flow direction of gas is restricted, and flows into or flow out the first air duct 7 along air-ducting ring 803.
As a kind of preferred embodiment, one end of described air-ducting ring 803 is near blade 802, and the other end of air-ducting ring 803 is connected with the end face seal of rotor 3.In the present embodiment, air-ducting ring 803 plays the effect of guiding, for dredging the flowing of gas.The diameter of air-ducting ring 803 is greater than the diameter of the first air duct 7.As shown in Figure 1, in the air inlet of the first air duct 7, i.e. the below of the first air duct 7, one end of air-ducting ring 803 near blade 802, the flowing rotarily driving ambient gas of blade 802.Because the bottom of air-ducting ring 803 is near blade 802, the gas being arranged in casing cavity of resorption 6 can not be subject to the stop of air-ducting ring 803, enters fast in the first air duct 7 under the effect of blade 802.If blade 802 to be arranged on the middle part of air-ducting ring 803, so the direct acting gas of blade 802 is the gas being positioned at air-ducting ring 803 bottom.Like this, the gas flow rates in casing cavity of resorption 6 must slow down, and is unfavorable for improving radiating rate.The other end of air-ducting ring 803 is connected with the end face seal of rotor 3.The gas entering air-ducting ring 803 can not flow out from the gap between air-ducting ring 803 and rotor 3, enters completely in the first air duct 7, carries out heat exchange with rotor, is conducive to improving heat transfer effect.
As a kind of preferred embodiment, as shown in Figure 1, described aerofoil fan 8 is two, and an aerofoil fan 8 is positioned at the top of rotor 3, and another aerofoil fan 8 is positioned at the below of rotor 3, and two aerofoil fans 8 are all relative with the first air duct 7.Aerofoil fan 8 is relative with the first air duct 7, can accelerate the flowing of gas in whole gas circulation path.Arrange two aerofoil fans, 8, aerofoil fan 8 for discharging the gas in the first air duct 7, another aerofoil fan 8 is for entering the gas in casing cavity of resorption 6 in the first air duct 7 simultaneously.Like this, arrange two aerofoil fans 8, form two-stage pumping, the gas flow rate in casing 1 is increased greatly, and radiating effect is obvious.As a kind of preferred embodiment, as shown in Figure 4, the outside wall surface of described rotor 3 is provided with the spiral groove 9 axially laid along rotor 3.In machine operation process, rotor 3 is rotate all the time.Clearance air flowing between rotor 3 and stator 2 is poor, and heat dispersion is very not good.Be provided with spiral groove 9 in the outside wall surface of rotor 3, when rotor 3 rotates, spiral groove 9 also rotates thereupon.As shown in Figure 1, in spiral groove 9, there is gas, the rotation of spiral groove 9, be equivalent to the effect gas between rotor 3 and stator 2 being created to pumping, high-temperature gas is flowed out from the gap of rotor 3 and stator 2.As preferably, spiral groove 9 is from the through bottom surface to rotor 3 of the end face of rotor 3.Like this, when spiral groove 9 rotates, pumping effect can be produced to the high-temperature gas in gap whole between rotor 3 and stator 2, high-temperature gas is discharged from gap between rotor 3 and stator 2, and cryogenic gas can enter gap between rotor 3 and stator 2.Preferably, spiral groove 9 is to the pumping direction of the gas between rotor 3 and stator 2, contrary with the pumping direction of aerofoil fan 8 pairs of gases.As shown in Figure 1, because the effect of aerofoil fan 8, make casing cavity of resorption 6 air pressure little, casing epicoele 5 air pressure is large, so spiral groove 9 complies with this draught head, by downward for the gas between rotor 3 and stator 2 pumping, efficiency is higher.Enter casing cavity of resorption 6 from effluent air between rotor 3 and stator 2, enter the first air duct 7 together with being arranged in the cryogenic gas of casing cavity of resorption 6.Gas, in the first air duct 7, after rotor 3 heat exchange, enters in casing epicoele 5.In casing epicoele 5, a part of gas enters in the second air duct, carries out heat exchange cooling, then enters in casing cavity of resorption 6; Another part gas enters in the gap of rotor 3 and stator 2, carries out heat exchange.Circulation like this.
Arranging of second air duct can have various ways, and the present embodiment is two kinds of versions preferably.The first structure: as depicted in figs. 1 and 2, the second air duct is the clearance channel 10 arranged between stator 2 and casing 1.Such as, the outer surface of stator 2 or the inwall of casing 1 arrange longitudinal fluting, to form the second air duct.
The second structure: as shown in Figure 5 and Figure 6, the second air duct is ventilation duct 11, and ventilation duct 11 is connected on casing 1 by upper ventilation flange 12 and lower ventilation flange 13, and ventilation duct 11 is positioned at the outside of casing 1.Ventilation duct 11 is communicated with casing epicoele 5 and casing cavity of resorption 6.Ventilation duct 11 is preferably made up of seamless steel pipe.Seamless steel pipe has good sealing, so adopt seamless steel pipe to make ventilation duct 11, can increase the sealing property of motor, avoids outside water to be entered in motor by ventilation duct 11.Ventilation duct 11 is connected on casing 1 by upper ventilation flange 12 and lower ventilation flange 13, and ventilation duct 11 is positioned at the outside of casing 1, and ventilation duct 11 is communicated with casing epicoele 5 and casing cavity of resorption 6.As shown in Figure 1, after the electrical power of said structure, produce magnetic field between rotor 3 and stator 2, the effect in magnetic field makes rotor 3 rotate.This course of work, due to power conversion, rotor 3 and stator 2 produce a large amount of heat.Meanwhile, aerofoil fan 8 rotates, and make the gas in casing epicoele 5 enter in casing cavity of resorption 6 by ventilation duct 11, the gas in casing cavity of resorption 6 is entered in casing epicoele 5 by ventilation duct 11, completes the circulation of gas in motor.When gas is through ventilation duct 11, gas and the continuous heat-shift of current being positioned at ventilation duct 11 outside, and then reduce the gas temperature flowed in casing cavity of resorption 6, gas after cooling enters in the first air duct 7, take away the heat that rotor 3 and stator 2 produce, realize the cooling to rotor 3 and stator 2.Gas after intensification enters casing epicoele 5 from the first air duct 7, then enters in ventilation duct 11.High-temperature gas realizes and outside current heat exchange in ventilation duct 11.Circulation like this, has carried out effective radiating treatment to motor.
As a kind of preferred embodiment, on described casing 1, the position of corresponding stator 4 is annular groove, and ventilation duct 6 is arranged in this annular groove; Upper ventilation flange 3 is positioned at the top of annular groove, is fixedly connected on casing 1; Lower ventilation flange 9 is positioned at the bottom of annular groove, is fixedly connected on casing 1.Casing 1 arranges annular groove, places ventilation duct 6, make the compact conformation of whole motor.Ventilation duct 6 is arranged on the outside of casing 1, also considerably increases heat-sinking capability.Especially arrange multiple ventilation duct 6, ventilation duct 6 is circumferentially evenly laid in the outer surface of casing 1.Ventilation duct size is little, quantity is many, circumferentially uniform, namely ensure that draught area, and casing 1 can not be made again oversize.If do not arrange ventilation duct 6, only rely on casing 1 to dispel the heat, area of dissipation is little on the one hand, and heat dispersion is poor on the other hand, all can not meet the requirement of efficiently radiates heat.The present embodiment, by being arranged on outside casing 1 by ventilation duct 6, considerably increases the heat exchange area with extraneous current, adopts steel pipe to make ventilation duct 6 simultaneously, has good sealing and heat dispersion.Compare and the first structure, the second structure, is provided with ventilation duct 6, and is positioned at the outside of casing 1, is conducive to improving the heat transfer effect between high-temperature gas and extraneous current.
As a kind of preferred embodiment, on described casing 1, the position of corresponding stator 2 is annular groove, and ventilation duct 11 is arranged in this annular groove; Upper ventilation flange 12 is positioned at the top of annular groove, is fixedly connected on casing 1; Lower ventilation flange 13 is positioned at the bottom of annular groove, is fixedly connected on casing 1.Casing 1 arranges annular groove, places ventilation duct 11, make the compact conformation of whole motor.Ventilation duct 11 is arranged on the outside of casing 1, also considerably increases heat-sinking capability.Especially arrange multiple ventilation duct 11, ventilation duct 11 is circumferentially evenly laid in the outer surface of casing 1.Ventilation duct size is little, quantity is many, circumferentially uniform, namely ensure that draught area, and casing 1 can not be made again oversize.If do not arrange ventilation duct 11, only rely on casing 1 to dispel the heat, area of dissipation is little on the one hand, and heat dispersion is poor on the other hand, all can not meet the requirement of efficiently radiates heat.The present embodiment, by being arranged on outside casing 1 by ventilation duct 11, considerably increases the heat exchange area with extraneous current, adopts steel pipe to make ventilation duct 11 simultaneously, has good sealing and heat dispersion.
Motor for submerged pump in the embodiment of the present invention is hermetically sealed form, and motor stator, rotor must not contact with water.Therefore, whole motor forms an airtight cavity.When motor runs, current flow through from motor case outer wall, take away the heat of motor.Aerofoil fan in the embodiment of the present invention, because outer ring is with air-ducting ring, inside and outside air-ducting ring, the flowing of gas does not interfere with each other, and the pumping efficiency of aerofoil fan to gas is improved greatly, and gas circulation speed is fast.The rotor outer wall of the embodiment of the present invention is provided with spiral groove, when working rotor rotates, pumping effect is formed to the gas in air gap, the part that in motor, gas the most not easily circulates is resolved, significantly enhance gas circulation, air and the continuous heat-shift of current flowing through casing periphery of continuous circulation, make motor have outstanding heat-sinking capability.
More than show and describe general principle of the present invention, principal character and advantage.Those skilled in the art should understand the present invention not by the restriction of above-mentioned specific embodiment; description in above-mentioned specific embodiment and specification is just in order to further illustrate principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The scope of protection of present invention is defined by claims and equivalent thereof.
Claims (10)
1. one kind has the large diving electric motor for pump of good radiating structure, this motor comprises casing (1), stator (2), rotor (3) and armature spindle (4), stator (2) is fixedly connected in the inner chamber of casing (1), rotor (3) is fixedly connected on armature spindle (4), armature spindle (4) is connected on casing (1) by bearing, and rotor (3) is relative with stator (2); It is characterized in that, casing (1) is separated into the casing epicoele (5) being positioned at casing (1) top and the casing cavity of resorption (6) being positioned at casing (1) bottom by described rotor (3) and stator (2); The first air duct (7) is provided with between described rotor (3) and armature spindle (4); First air duct (7) is communicated with casing epicoele (5) and casing cavity of resorption (6); The second air duct being communicated with casing epicoele (5) and casing cavity of resorption (6) is also provided with between casing epicoele (5) and casing cavity of resorption (6); Described motor also comprises aerofoil fan (8), and aerofoil fan (8) is fixedly connected on armature spindle (4).
2. according to the large diving electric motor for pump with good radiating structure according to claim 1, it is characterized in that, described aerofoil fan (8) comprises wheel hub (801), blade (802) and air-ducting ring (803), blade (802) is positioned between wheel hub (801) and air-ducting ring (803), and blade (802) two ends are fixedly connected with air-ducting ring (803) with wheel hub (801) respectively;
Wheel hub (801) is fixedly connected on armature spindle (4), and aerofoil fan (8) is positioned at the outside of rotor (3).
3. according to the large diving electric motor for pump with good radiating structure according to claim 2, it is characterized in that, one end of described air-ducting ring (803) is near blade (802), and the other end of air-ducting ring (803) is connected with the end face seal of rotor (3).
4. according to the large diving electric motor for pump with good radiating structure described in claim 1,2 or 3, it is characterized in that, described aerofoil fan (8) is two, an aerofoil fan (8) is positioned at the top of rotor (3), another aerofoil fan (8) is positioned at the below of rotor (3), and two aerofoil fans (8) are all relative with the first air duct (7).
5. according to the large diving electric motor for pump with good radiating structure according to claim 1, it is characterized in that, the outside wall surface of described rotor (3) is provided with the spiral groove (9) axially laid along rotor (3).
6. according to the large diving electric motor for pump with good radiating structure according to claim 5, it is characterized in that, described spiral groove (9) is from the through bottom surface to rotor (3) of the end face of rotor (3).
7. according to the large diving electric motor for pump with good radiating structure described in claim 5 or 6, it is characterized in that, described spiral groove (9) is contrary with the pumping direction of aerofoil fan (8) to gas to the pumping direction being positioned at gas between rotor (3) and stator (2).
8. according to the large diving electric motor for pump with good radiating structure according to claim 1, it is characterized in that, the second described air duct is the clearance channel (10) arranged between stator (2) and casing (1).
9. according to the large diving electric motor for pump with good radiating structure according to claim 1, it is characterized in that, the second described air duct is ventilation duct (11), ventilation duct (11) is connected on casing (1) by upper ventilation flange (12) and lower ventilation flange (13), and ventilation duct (11) is positioned at the outside of casing (1).
10. according to the large diving electric motor for pump with good radiating structure according to claim 9, it is characterized in that, the position of the upper corresponding stator (2) of described casing (1) is annular groove, and ventilation duct (11) is located in this annular groove; Upper ventilation flange (12) is positioned at the top of annular groove, and is fixedly connected on casing (1); Lower ventilation flange (13) is positioned at the bottom of annular groove, and is fixedly connected on casing (1); Ventilation duct (11) is circumferentially evenly laid in the outer surface of casing (1), and ventilation duct (11) is made up of seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510177806.2A CN104734387A (en) | 2015-04-13 | 2015-04-13 | Motor applicable to large-sized water pumps and having good cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510177806.2A CN104734387A (en) | 2015-04-13 | 2015-04-13 | Motor applicable to large-sized water pumps and having good cooling structure |
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| CN104734387A true CN104734387A (en) | 2015-06-24 |
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| CN201510177806.2A Pending CN104734387A (en) | 2015-04-13 | 2015-04-13 | Motor applicable to large-sized water pumps and having good cooling structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593919A (en) * | 2016-12-19 | 2017-04-26 | 南京磁谷科技有限公司 | 300kw magnetic-suspension high-speed fan structure |
| CN109217536A (en) * | 2018-08-22 | 2019-01-15 | 襄阳世阳电机有限公司 | A kind of motor special in nuclear submarine ventilation shaft |
| WO2020134423A1 (en) * | 2018-12-25 | 2020-07-02 | 珠海格力电器股份有限公司 | Electric motor and compressor having said electric motor |
| CN113556005A (en) * | 2021-07-07 | 2021-10-26 | 杭州电子科技大学 | Motor structure for improving heat dissipation of stator |
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| CN2325570Y (en) * | 1998-09-24 | 1999-06-23 | 江苏亚太泵业集团公司 | Immersible electric motor having heat radiation air duct |
| CN1694335A (en) * | 2005-05-20 | 2005-11-09 | 合肥三益江海泵业有限公司 | Large submersible electric pump |
| CN201478942U (en) * | 2009-08-12 | 2010-05-19 | 江苏亚太泵阀有限公司 | Submersible high-temperature resistant electrical machine for pump |
| CN203722413U (en) * | 2013-12-27 | 2014-07-16 | 合肥盛亚电机电泵有限公司 | Dry-type stator submersible electric pump capable of preventing friction between stator and rotor |
| CN204578235U (en) * | 2015-04-13 | 2015-08-19 | 蓝深集团股份有限公司 | A kind of large diving electric motor for pump with good radiating structure |
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| CN106593919A (en) * | 2016-12-19 | 2017-04-26 | 南京磁谷科技有限公司 | 300kw magnetic-suspension high-speed fan structure |
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| CN113556005A (en) * | 2021-07-07 | 2021-10-26 | 杭州电子科技大学 | Motor structure for improving heat dissipation of stator |
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Application publication date: 20150624 |