CN209358317U - A kind of oil-cooled motor - Google Patents
A kind of oil-cooled motor Download PDFInfo
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- CN209358317U CN209358317U CN201920053112.1U CN201920053112U CN209358317U CN 209358317 U CN209358317 U CN 209358317U CN 201920053112 U CN201920053112 U CN 201920053112U CN 209358317 U CN209358317 U CN 209358317U
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- sap cavity
- cooling
- cooling sap
- electric machine
- machine casing
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Abstract
The utility model discloses a kind of oil-cooled motors, including electric machine casing, stator core, stator winding, rotor assembly and shaft；Rotor assembly is provided in shaft；Stator core is provided with outside rotor assembly；Electric machine casing is provided with outside stator core；Electric machine casing at least one end is provided with end cap；Stator winding is provided on stator core；Two ends of stator winding are respectively arranged with cooling sap cavity I and cooling sap cavity II；Cooling sap cavity I is connected to cooling sap cavity II；Insulation shell is provided in the winding slot inside stator core；The both ends of insulation shell are connect with cooling sap cavity I and cooling sap cavity II respectively；Electric machine casing is provided with the circulation port I being connected to cooling sap cavity I；Electric machine casing is provided with the circulation port II being connected to cooling sap cavity II.The stator winding of the utility model directly cooled machine, intensity of cooling is high, improves the rated power of motor；Rotor has been isolated and coolant liquid improves motor working efficiency；Guarantee coolant liquid cleaning, extends the service life of motor.
Description
Technical field
The utility model relates to a kind of motors, more particularly, to a kind of high efficient oil using directly cooled machine stator winding
Cool electric machine.
Background technique
The cooling structure for improving motor, is a main job in motor development process, the heat-sinking capability of motor is got over
By force, the power density of motor will be bigger, the various motor cooling schemes generated thus, cold from air-cooled, water cooling to oil, respectively has excellent
Disadvantage: the advantages of ventilated machine is that frictional dissipation is low, high-efficient, at low cost, but the disadvantage is that intensity of cooling is low, the power of motor is close
It spends low；The cooling water channel of water-cooled machine is arranged on shell, and the heat transfer route from stator winding to cooling water is long, and heat dissipation is slow
Slowly, cooling effect is bad；The advantages of oil-cooled motor is can directly to cool down stator winding, mainly there is oil immersed type and two kinds of fountain
Structure, the former is since, with cooling oil drag, loss is big, and electric efficiency is low, and then intensity of cooling is lower by the latter, cooling when rotor rotates
Effect improves limited.
The fever and heat transfer mechanism in operational process by analyzing motor, in load conditions, the stator of motor around
Group is main pyrotoxin, and the heat generated, a part is radiated by stator winding end, and a part passes through rotor and stator
Between air gap, be transmitted on rotor, radiated by the end of rotor, another part passes to stator core and dissipate by conducting etc.
Heat, therefore, cooling stator winding is the most important link of motor radiating.
Summary of the invention
The utility model aim is: providing a kind of stator winding of directly cooled machine, while having eradicated rotor and oil
The problem of friction generates heat, high-efficiency operation, oil-cooled motor with long service life.
The technical solution of the utility model is: a kind of oil-cooled motor, including electric machine casing, stator core, stator winding, turn
Sub-component and shaft；Rotor assembly is provided in the shaft；Stator core is provided with outside the rotor assembly；The stator
Electric machine casing is provided with outside iron core；Described electric machine casing both ends at least one end is provided with end cap；It is set on the stator core
It is equipped with stator winding；Two ends of the stator winding are respectively arranged with cooling sap cavity I and cooling sap cavity II；The coolant liquid
Chamber I is connected to cooling sap cavity II；Coolant liquid built in the cooling sap cavity I and cooling sap cavity II；Coiling inside stator core
Insulation shell is provided in slot；The both ends of the insulation shell are connect with cooling sap cavity I and cooling sap cavity II respectively；Circulation port I
It is connected to the cooling sap cavity I and is connect with external cooling line；Circulation port II be connected to the cooling sap cavity II and with outside
Cooling line connection.
Preferably, the both ends of the insulation shell are connected to and in communication with cooling sap cavity I and cooling sap cavity II respectively；It is described cold
But sap cavity I, insulation shell, cooling sap cavity II, circulation port I and circulation port II constitute cooling circuit.
Preferably, connecting line is provided between the cooling sap cavity I and cooling sap cavity II；The cooling sap cavity I, connection
Pipeline, cooling sap cavity II, circulation port I and circulation port II constitute cooling circuit；The connecting line be arranged in electric machine casing or
Outside electric machine casing.
Preferably, the both ends of the insulation shell are connected to and in communication with cooling sap cavity I and cooling sap cavity II respectively；It is described cold
But connecting line is provided between sap cavity I and cooling sap cavity II；The cooling sap cavity I, insulation shell, connecting line, coolant liquid
Chamber II, circulation port I and circulation port II constitute cooling circuit；The connecting line setting is in electric machine casing or outside electric machine casing.
Preferably, the joining place of the stator core both ends and cooling sap cavity I and cooling sap cavity II is provided with sealing ring；
The insulation shell end and end cap joining place are provided with oil seal ring.
Preferably, the coolant liquid is to have the coolant liquid of insulating capacity.
A kind of oil-cooled motor, including electric machine casing, stator core, stator winding, rotor assembly and shaft；In the shaft
It is provided with rotor assembly；Stator core is provided with outside the rotor assembly；Electric machine casing is provided with outside the stator core；
Described electric machine casing both ends at least one end is provided with end cap；Stator winding is provided on the stator core；The stator around
Two ends of group are respectively arranged with cooling sap cavity I and cooling sap cavity II；It is cooling built in the cooling sap cavity I and cooling sap cavity II
Liquid；Insulation shell is provided in the winding slot inside stator core；The both ends of the insulation shell respectively with cooling sap cavity I and
Cooling sap cavity II connects；Two circulation ports I are connected to the cooling sap cavity I and connect with external cooling line；Two circulation ports
II is connected to the cooling sap cavity II and connect with external cooling line；Cooling sap cavity I and two circulation port I constitutes cooling
Circuit；The cooling sap cavity II constitutes cooling circuit with circulation port II.
Preferably, the both ends of the insulation shell are connected to and in communication with cooling sap cavity I and cooling sap cavity II respectively.
Preferably, connecting line is provided between the cooling sap cavity I and cooling sap cavity II；The connecting line setting exists
In electric machine casing or outside electric machine casing.
Preferably, the both ends of the insulation shell are connected to and in communication with cooling sap cavity I and cooling sap cavity II respectively；It is described cold
But connecting line is provided between sap cavity I and cooling sap cavity II；The connecting line is arranged in electric machine casing or electric machine casing
Outside.
Preferably, the joining place of the stator core both ends and cooling sap cavity I and cooling sap cavity II is provided with sealing ring；
The insulation shell end and end cap joining place are provided with oil seal ring.
Preferably, the coolant liquid is to have the coolant liquid of insulating capacity.
The utility model has the advantages that:
1. the stator winding of directly cooled machine, intensity of cooling is high, can increase substantially the rated power of motor, improves electricity
The utilization rate of machine material；
2. avoiding rotor and coolant liquid friction due to being effectively isolated rotor and coolant liquid, loss is reduced, improves motor
Working efficiency；
3., so that the cleanliness of coolant liquid has guarantee, avoiding metallic particles since coolant liquid does not contact rotatable parts
The exception for causing motor fret to generate into coolant liquid, increases the service life of motor.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and embodiments:
Fig. 1 is the schematic cross-sectional view of one of embodiment of this case one oil-cooled motor；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is enlarged drawing at B in Fig. 1；
Fig. 4 is the schematic cross-sectional view of one of embodiment of this case two oil-cooled motor；
Fig. 5 is enlarged drawing at C in Fig. 4；
Fig. 6 is enlarged drawing at D in Fig. 4；
Fig. 7 is the schematic cross-sectional view of one of embodiment of this case two oil-cooled motor；
Fig. 8 is enlarged drawing at E in Fig. 7；
Wherein: 1, electric machine casing；2, stator core；3, stator winding；4, rotor assembly；5, shaft；6, cooling sap cavity I；
7, cooling sap cavity II；8, insulation shell；9, sealing ring；10, oil seal ring；11, end cap；12, circulation port I；13, circulation port II；31,
Gap between line；32, connecting line；33, wire insulation.
Specific embodiment
Embodiment one:
As shown in Figs. 1-3；A kind of oil-cooled motor, including electric machine casing 1, stator core 2, stator winding 3, rotor assembly 4
With shaft 5；Rotor assembly 4 is provided in the shaft 5；Stator core 2 is provided with outside the rotor assembly 4；The stator
Electric machine casing 1 is provided with outside iron core 2；The electric machine casing 1 at least one end is provided with end cap 11；It is set on the stator core 2
It is equipped with stator winding 3；Two ends of the stator winding 3 are respectively arranged with cooling sap cavity I 6 and cooling sap cavity II 7；It is described fixed
Sub- 3 both ends of winding are respectively in cooling sap cavity I 6 and cooling sap cavity II 7；2 both ends of stator core and cooling sap cavity I 6 and
The joining place of cooling sap cavity II 7 is provided with sealing ring 9；8 both ends of insulation shell and 11 joining place of end cap are provided with oil seal ring
10；The cooling sap cavity I 6 and cooling sap cavity II 7 are by electric machine casing 1,2 both ends of the surface of stator core, 3 both ends of the surface of stator winding, close
The cavity that seal ring 9, oil seal ring 10 and end cap 11 form；Coolant liquid built in the cooling sap cavity I 6 and cooling sap cavity II 7；It is described cold
But liquid is the coolant liquid for having insulating capacity；Insulation shell is provided between winding slot inside stator core 2 and stator winding 3
8；The both ends of the insulation shell 8 are connect with cooling sap cavity I 6 and cooling sap cavity II 7 respectively；Circulation port I 12 and the coolant liquid
Chamber I 6 is connected to and connect with external cooling line；Circulation port II 13 be connected to the cooling sap cavity II 7 and with external cooling line
Connection.
The both ends of the insulation shell 8 are connected to and in communication with cooling sap cavity I 6 and cooling sap cavity II 7 respectively；The coolant liquid
Chamber I 6, insulation shell 8, cooling sap cavity II 7, circulation port I 12 and circulation port II 13 constitute cooling circuit；The coolant liquid is insulating
Cooling sap cavity I 6 and cooling sap cavity II 7, circulation are connected to by gap 31 between the line between the conducting wire of stator winding 3 inside shell 8
The coolant liquid of process cooling-cycle device be input in cooling sap cavity I 6 by hole I 12, by insulation shell 8 and cool down sap cavity II 7,
Stator winding 3 is cooling, then send out coolant liquid from circulation port II 13, so circulation plays cooling effect；Insulation shell 8 has two
A main function: one is electrically isolated protection, i.e., insulation prevents from leaking electricity between the 2 of stator winding 3 and stator core, second is that coolant liquid
Isolation, that is, prevent coolant liquid from entering stator core 2 because stator core 2 be by multi-disc silicon steel sheet group at, between silicon steel sheet
Coolant liquid cannot be sealed, so coolant liquid is isolated by insulation shell 8, makes it not and can enter stator core 2；It is close due to being provided with
Seal ring 9 and oil seal ring 10, coolant liquid only cool down stator winding 3, and stator winding 3 is immersed in the coolant liquid of circulation, from
And be adequately cooled, the working efficiency of motor is effectively ensured；It has been effectively isolated rotor assembly 4 and coolant liquid, has reduced loss, together
When coolant liquid cleanliness have guarantee, avoid metallic particles enter coolant liquid cause abrasion exception.
Embodiment two:
As Figure 4-Figure 6；A kind of oil-cooled motor, including electric machine casing 1, stator core 2, stator winding 3, rotor assembly 4
With shaft 5；Rotor assembly 4 is provided in the shaft 5；Stator core 2 is provided with outside the rotor assembly 4；The stator
Electric machine casing 1 is provided with outside iron core 2；1 both ends of electric machine casing are provided with end cap 11；It is set on the stator core 2
It is equipped with stator winding 3；Two ends of the stator winding 3 are respectively arranged with cooling sap cavity I 6 and cooling sap cavity II 7；It is described fixed
Sub- 3 both ends of winding are respectively in cooling sap cavity I 6 and cooling sap cavity II 7；2 both ends of stator core and cooling sap cavity I 6 and
The joining place of cooling sap cavity II 7 is provided with sealing ring 9；8 both ends of insulation shell and 11 joining place of end cap are provided with oil seal ring
10；The cooling sap cavity I 6 and cooling sap cavity II 7 are by electric machine casing 1,2 both ends of the surface of stator core, 3 both ends of the surface of stator winding, close
The cavity that seal ring 9, oil seal ring 10 and end cap 11 form；Coolant liquid built in the cooling sap cavity I 6 and cooling sap cavity II 7；It is described cold
But liquid is the coolant liquid for having insulating capacity；Insulation shell is provided between winding slot inside stator core 2 and stator winding 3
8；The both ends of the insulation shell 8 are connect with cooling sap cavity I 6 and cooling sap cavity II 7 respectively；Circulation port I 12 and the coolant liquid
Chamber I 6 is connected to and connect with external cooling line；Circulation port II 13 be connected to the cooling sap cavity II 7 and with external cooling line
Connection；Connecting line 32 is provided between the cooling sap cavity I and cooling sap cavity II；The connecting line 32 is arranged in motor casing
In body 1.
The coolant liquid is connected to cooling sap cavity I 6 and cooling sap cavity II 7 in connecting line 32, so that coolant liquid is in coolant liquid
Chamber I 6, connecting line 32, cooling sap cavity II 7, circulation port I and circulation port II constitute cooling circuit；On the Stator winding wires
It is provided with wire insulation 33；Circulation port I 12 will be input in cooling sap cavity I 6 by the coolant liquid of cooling-cycle device, be passed through
Connecting line 32 and cooling sap cavity II 7, stator winding 3 is cooling, then send out coolant liquid from circulation port II 13, so recycle
To cooling effect；Insulation shell 8 is there are two main function: one is electrically isolated protection, i.e. 2 in stator winding 3 and stator core
Between insulation prevent from leaking electricity, second is that coolant liquid be isolated, that is, prevent coolant liquid from entering stator core 2, because stator core 2 is by multi-disc
Silicon steel sheet group at, coolant liquid cannot be sealed between silicon steel sheet, thus by insulation shell 8 be isolated coolant liquid, prevent its from
Into stator core 2；Due to being provided with sealing ring 9 and oil seal ring 10, coolant liquid only cools down stator winding 3, stator around
Group 3 is immersed in the coolant liquid of circulation, to be adequately cooled, the working efficiency of motor is effectively ensured；It has been effectively isolated turn
Sub-component 4 and coolant liquid reduce loss, while the cleanliness of coolant liquid has guarantee, avoids metallic particles and enters coolant liquid
Lead to the exception of abrasion.32 connecting line of connecting line in the present embodiment also can be set outside motor case, be acted as
With identical as the present embodiment.
Embodiment three:
As Figure 7-8；A kind of oil-cooled motor, including electric machine casing 1, stator core 2, stator winding 3, rotor assembly 4
With shaft 5；Rotor assembly 4 is provided in the shaft 5；Stator core 2 is provided with outside the rotor assembly 4；The stator
Electric machine casing 1 is provided with outside iron core 2；1 both ends of electric machine casing are provided with end cap 11；It is set on the stator core 2
It is equipped with stator winding 3；Two ends of the stator winding 3 are respectively arranged with cooling sap cavity I 6 and cooling sap cavity II 7；It is described fixed
Sub- 3 both ends of winding are respectively in cooling sap cavity I 6 and cooling sap cavity II 7；2 both ends of stator core and cooling sap cavity I 6 and
The joining place of cooling sap cavity II 7 is provided with sealing ring 9；8 both ends of insulation shell and 11 joining place of end cap are provided with oil seal ring
10；The cooling sap cavity I 6 and cooling sap cavity II 7 are by electric machine casing 1,2 both ends of the surface of stator core, 3 both ends of the surface of stator winding, close
The cavity that seal ring 9, oil seal ring 10 and end cap 11 form；Coolant liquid built in the cooling sap cavity I 6 and cooling sap cavity II 7；It is described cold
But liquid is the coolant liquid for having insulating capacity；Insulation shell is provided between winding slot inside stator core 2 and stator winding 3
8；The both ends of the insulation shell 8 are connect with cooling sap cavity I 6 and cooling sap cavity II 7 respectively；Two circulation ports I 12 with it is described cold
But sap cavity I 6 is connected to and connect with external cooling line；Two circulation ports II 7 are connected to and cold with outside with the cooling sap cavity II 7
But piping connection；The cooling sap cavity I 6 and two circulation ports I 12 constitute cooling circuit；The cooling sap cavity II 7 and circulation port
II 13 constitute cooling circuit.
Two circulation ports I 12 of the coolant liquid and cooling sap cavity I 6 carry out cooling cycle；Two circulation ports II 13 and cooling
Sap cavity II 7 carries out independent cooling cycle；Described two circulation ports I 12 and two circulation ports II 13 are circumscribed with cooling cycle pipe respectively
Road；It is input in cooling sap cavity I 6 by the coolant liquid of cooling-cycle device from a circulation port I 12, stator winding 3 is cold
But, still further a circulation port I 12 sends out coolant liquid, and so circulation plays cooling effect；By the cold of cooling-cycle device
But liquid is input in cooling sap cavity II 7 from a circulation port II 13, and stator winding 3 is cooling, still further a circulation port II 13
Coolant liquid is sent out, so circulation plays cooling effect；Cooling sap cavity I 6 and cooling II 7 circulating cooling stator winding 3 of sap cavity；Absolutely
Edge shell 8 is there are two main function: one is electrically isolated protection, i.e., insulate anti-leak-stopping between the 2 of stator winding 3 and stator core
Electricity, second is that coolant liquid be isolated, that is, prevent coolant liquid from entering stator core 2 because stator core 2 be by multi-disc silicon steel sheet group at
, coolant liquid cannot be sealed between silicon steel sheet, so coolant liquid is isolated by insulation shell 8, makes it not and can enter stator iron
Core 2；Due to being provided with sealing ring 9 and oil seal ring 10, coolant liquid only cools down stator winding 3, and stator winding 3, which is immersed in, to follow
In the coolant liquid of ring, to be adequately cooled, the working efficiency of motor is effectively ensured；Be effectively isolated rotor assembly 4 with it is cold
But liquid reduces loss, while the cleanliness of coolant liquid has guarantees, avoid metallic particles enter coolant liquid cause to wear it is different
Often.
Three kinds of embodiments in the present invention can be used alone, and can also make in conjunction with both therein or three mixing
With being selected according to specific actual demand.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed of the utility model
All equivalent modifications or change completed under spirit and technical idea, should be covered by the claim of the utility model.
Claims (10)
1. a kind of oil-cooled motor, it is characterised in that: including electric machine casing, stator core, stator winding, rotor assembly and shaft；
Rotor assembly is provided in the shaft；Stator core is provided with outside the rotor assembly；Setting outside the stator core
There is electric machine casing；The electric machine casing at least one end is provided with end cap；Stator winding is provided on the stator core；It is described fixed
Two ends of sub- winding are respectively arranged with cooling sap cavity I and cooling sap cavity II；The cooling sap cavity I and cooling sap cavity II connect
It is logical；Coolant liquid built in the cooling sap cavity I and cooling sap cavity II；Insulation shell is provided in the winding slot inside stator core
Body；The both ends of the insulation shell are connect with cooling sap cavity I and cooling sap cavity II respectively；Circulation port I and the cooling sap cavity I connect
Lead to and is connect with external cooling line；Circulation port II is connected to the cooling sap cavity II and connect with external cooling line.
2. a kind of oil-cooled motor according to claim 1, it is characterised in that: the both ends of the insulation shell respectively with cooling
Sap cavity I and cooling sap cavity II are connected to and in communication with；The cooling sap cavity I, insulation shell, cooling sap cavity II, circulation port I and circulation port
II constitutes cooling circuit.
3. a kind of oil-cooled motor according to claim 1, it is characterised in that: the cooling sap cavity I and cooling sap cavity II it
Between be provided with connecting line；The cooling sap cavity I, connecting line, cooling sap cavity II, circulation port I and circulation port II constitute cooling
Circuit；The connecting line setting is in electric machine casing or outside electric machine casing.
4. a kind of oil-cooled motor according to claim 1, it is characterised in that: the both ends of the insulation shell respectively with cooling
Sap cavity I and cooling sap cavity II are connected to and in communication with；Connecting line is provided between the cooling sap cavity I and cooling sap cavity II；It is described
Cooling sap cavity I, insulation shell, connecting line, cooling sap cavity II, circulation port I and circulation port II constitute cooling circuit；The connection
Pipeline is arranged in electric machine casing or outside electric machine casing.
5. a kind of oil-cooled motor described in any one of -4 according to claim 1, it is characterised in that: the stator core both ends
The joining place of portion and cooling sap cavity I and cooling sap cavity II is provided with sealing ring；The insulation shell end is set with end cap joining place
It is equipped with oil seal ring.
6. a kind of oil-cooled motor, it is characterised in that: including electric machine casing, stator core, stator winding, rotor assembly and shaft；
Rotor assembly is provided in the shaft；Stator core is provided with outside the rotor assembly；Setting outside the stator core
There is electric machine casing；The electric machine casing at least one end is provided with end cap；Stator winding is provided on the stator core；It is described fixed
Two ends of sub- winding are respectively arranged with cooling sap cavity I and cooling sap cavity II；Built in the cooling sap cavity I and cooling sap cavity II
Coolant liquid；Insulation shell is provided in the winding slot inside stator core；The both ends of the insulation shell respectively with coolant liquid
Chamber I and cooling sap cavity II connect；Two circulation ports I are connected to the cooling sap cavity I and connect with external cooling line；Two are followed
Annular distance II is connected to the cooling sap cavity II and connect with external cooling line；Cooling sap cavity I and two circulation port I is constituted
Cooling circuit；The cooling sap cavity II constitutes cooling circuit with circulation port II.
7. a kind of oil-cooled motor according to claim 6, it is characterised in that: the both ends of the insulation shell respectively with cooling
Sap cavity I and cooling sap cavity II are connected to and in communication with.
8. a kind of oil-cooled motor according to claim 6, it is characterised in that: the cooling sap cavity I and cooling sap cavity II it
Between be provided with connecting line；The connecting line setting is in electric machine casing or outside electric machine casing.
9. a kind of oil-cooled motor according to claim 6, it is characterised in that: the both ends of the insulation shell respectively with cooling
Sap cavity I and cooling sap cavity II are connected to and in communication with；Connecting line is provided between the cooling sap cavity I and cooling sap cavity II；It is described
Connecting line is arranged in electric machine casing or outside electric machine casing.
10. a kind of oil-cooled motor according to any one of claim 6-9, it is characterised in that: the stator core two
The joining place of end and cooling sap cavity I and cooling sap cavity II is provided with sealing ring；The insulation shell end and end cap joining place
It is provided with oil seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920053112.1U CN209358317U (en) | 2019-01-14 | 2019-01-14 | A kind of oil-cooled motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920053112.1U CN209358317U (en) | 2019-01-14 | 2019-01-14 | A kind of oil-cooled motor |
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| Publication Number | Publication Date |
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| CN209358317U true CN209358317U (en) | 2019-09-06 |
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ID=67802894
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109525056A (en) * | 2019-01-14 | 2019-03-26 | 苏州阿福机器人有限公司 | A kind of oil-cooled motor |
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2019
- 2019-01-14 CN CN201920053112.1U patent/CN209358317U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109525056A (en) * | 2019-01-14 | 2019-03-26 | 苏州阿福机器人有限公司 | A kind of oil-cooled motor |
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