CN109980833A - A kind of oil-filled submersible motor - Google Patents
A kind of oil-filled submersible motor Download PDFInfo
- Publication number
- CN109980833A CN109980833A CN201910304230.XA CN201910304230A CN109980833A CN 109980833 A CN109980833 A CN 109980833A CN 201910304230 A CN201910304230 A CN 201910304230A CN 109980833 A CN109980833 A CN 109980833A
- Authority
- CN
- China
- Prior art keywords
- motor
- stator
- oil
- rotor
- motor case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/132—Submersible electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
A kind of oil-filled submersible motor, the present invention relates to submersible motor technical fields, specifically include: motor case；The rear and front end of motor case is respectively arranged with drive end bearing bracket and rear end cap, preceding thrust bearing is provided on drive end bearing bracket, rear thrust bearing is provided on rear end cap, machine shaft is provided between preceding thrust bearing and rear thrust bearing, machine shaft is arranged in motor case and drive end bearing bracket is run through in one end, is provided with rotor on machine shaft, rotor side is additionally provided with impeller, it is additionally provided with stator in motor case, stator setting is in rotor outer end and corresponding with rotor-position；The present invention does not need to be laid with additional cooling pipe, forms the oil in motor inside motor and circulates, can directly reduce the temperature of winding in motor slot, at low cost, and advantageously ensures that the good of motor seal performance.
Description
Technical field
The present invention relates to submersible motor technical field more particularly to a kind of oil-filled submersible motors.
Background technique
Submersible motor works in water, balances external pressure in the way of oil-filled inside the motor.Since power of motor is close
Degree is big, and when motor operation can generate a large amount of heat.Since the thermal coefficient of slot insulation in motor stator slot is very low, so that in slot
The heat that winding generates cannot shed in time, and machine winding is be easy to cause to overheat, and shorten electrical machinery life, or even burn motor.
Summary of the invention
The present invention overcomes above-mentioned the deficiencies in the prior art, provide a kind of oil-filled submersible motor.The present invention does not need
It is laid with additional cooling pipe, the oil in motor is formed inside motor and circulates, can directly reduce winding in motor slot
Temperature, it is at low cost, and advantageously ensure that the good of motor seal performance.
Technical solution of the present invention:
A kind of oil-filled submersible motor, comprising: motor case, drive end bearing bracket, rear end cap, preceding thrust bearing, rear thrust bearing,
Machine shaft, stator and rotor；The rear and front end of the motor case is respectively arranged with drive end bearing bracket and rear end cap, the drive end bearing bracket
On be provided with preceding thrust bearing, be provided with rear thrust bearing on the rear end cap, the preceding thrust bearing and it is described after thrust shaft
Machine shaft is provided between holding, the machine shaft is arranged in the motor case and the drive end bearing bracket, institute are run through in one end
It states and is provided with the rotor on machine shaft, the rotor side is additionally provided with impeller, and it is fixed to be additionally provided in the motor case
Son, stator setting is in the rotor outer end and corresponding with the rotor-position；Stator slot inside conductor uses flat wire, and flat wire is perpendicular
Straight winding on the stator teeth, leaves oil circuit in stator groove center, oil is allow to flow through stator groove center；Shaft in motor end
Upper installation impeller, in motor operation, shaft rotation, impeller is rotated, and the fluid oil flowing in pushing motor, oil is flowing through
In stator slot when oil circuit, the heat of winding in slot can be directly taken away；When oil stream is through motor end, generation pair between meeting and casing
Stream heat exchange, transfers heat to casing, casing transfers heat to external environment again.
Fluid oil is filled in the motor case；
It is machined with stator slot on the stator, is set in the stator slot and is wound with conducting wire, the conducting wire uses flat wire, described
Flat wire is wrapped in stator slot vertically, and the stator interior is provided with cooling oil path.
Further, the fluid oil in the motor case by wheel rotation from motor case rear end via stator and rotor
Between air gap flow direction motor casing front end, then flow back to motor case rear end via the cooling oil path on stator, it is cold to form circulation
But oil circuit.
Further, the machine shaft and the drive end bearing bracket junction are provided with water seal.
The present invention has the advantages that compared with the existing technology
The present invention does not need to be laid with additional cooling pipe, and the fluid oil in motor is made to form recycle stream inside motor
It is dynamic, the temperature of winding in motor slot can be directly reduced, it is at low cost, and advantageously ensure that the good of motor seal performance；
Stator slot inside conductor of the present invention uses flat wire, and flat wire is wound on the stator teeth vertically, leaves oil in stator groove center
Road allows oil to flow through stator groove center；Impeller is installed in the shaft of motor end, in motor operation, shaft rotation, band
Wheel rotation is moved, the fluid oil flowing in pushing motor, oil can directly take away winding in slot when flowing through oil circuit in stator slot
Heat；When oil stream is through motor end, heat convection occurs between meeting and casing, transfers heat to casing, casing again will be warm
Amount passes to external environment.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of stator of the invention；
Fig. 3 is the cooling path of fluid oil of the invention.
1- motor case in figure；2- drive end bearing bracket；3- rear end cap；Thrust bearing before 4-；Thrust bearing after 5-；6- motor turns
Axis；7- stator；8- rotor；9- impeller；10- water seal.
Specific embodiment
Below with reference to attached drawing, the present invention is described in detail.
In conjunction with shown in Fig. 1-Fig. 3, a kind of oil-filled submersible motor disclosed in the present embodiment, comprising: motor case 1, front end
Lid 2, rear end cap 3, preceding thrust bearing 4, rear thrust bearing 5, machine shaft 6, stator 7 and rotor 8；Before the motor case 1
Both ends are respectively arranged with drive end bearing bracket 2 and rear end cap 3 afterwards, thrust bearing 4 before being provided on the drive end bearing bracket 2, on the rear end cap 3
It is provided with rear thrust bearing 5, is provided with machine shaft 6, the electricity between the preceding thrust bearing 4 and the rear thrust bearing 5
Machine shaft 6 is arranged in the motor case 1 and the drive end bearing bracket 2 is run through in one end, and described turn is provided on the machine shaft 6
Son 8,8 side of rotor is additionally provided with impeller 9, and stator 7 is additionally provided in the motor case 1, and the stator 7 is arranged in institute
State 8 outer end of rotor and corresponding with 8 position of rotor；
Fluid oil is filled in the motor case 1；
It is machined with stator slot 71 on the stator 7, is set in the stator slot 71 and is wound with conducting wire 72, the conducting wire 72 uses
Flat wire, the flat wire are wrapped in vertically in stator slot 71, and the stator 7 is internally provided with cooling oil path 73；Stator slot inside conductor
Using flat wire, flat wire is wound on the stator teeth vertically, leaves oil circuit in stator groove center, oil is allow to flow through stator groove center；
Impeller is installed in the shaft of motor end, in motor operation, shaft rotation, impeller is rotated, the liquid in pushing motor
State oil stream is dynamic, and oil can directly take away the heat of winding in slot when flowing through oil circuit in stator slot；When oil stream is through motor end,
Heat convection occurs between meeting and casing, transfers heat to casing, casing transfers heat to external environment again.
Specifically, the fluid oil in the motor case 1 via stator 7 and is turned by the rotation of impeller 9 from 1 rear end of motor case
1 front end of air gap flow direction motor casing between son 8, then 1 rear end of motor case, shape are flowed back to via the cooling oil path 73 on stator 7
At circulating cooling oil circuit.
Specifically, the machine shaft 6 is provided with water seal 10 with 2 junction of drive end bearing bracket；Before machine shaft 6 runs through
The part of end cap is provided with water seal, increases the leakproofness of electric machine casing, guarantees the loop stability of fluid oil.
The course of work of the invention:
Stator slot inside conductor uses flat wire, and flat wire winds on the stator teeth vertically, leaves oil circuit in stator groove center, make oil
Stator groove center can be flowed through；Impeller is installed in the shaft of motor end, in motor operation, shaft rotation, impeller
It rotates, the fluid oil flowing in pushing motor, oil can directly take away the heat of winding in slot when flowing through oil circuit in stator slot；
When oil stream is through motor end, heat convection occurs between meeting and casing, transfers heat to casing, casing is again by heat transfer
To external environment.
The connection that the present invention is previously mentioned, which is divided into, to be fixedly connected and dismantling connection, described to be fixedly connected with (as non-dismountable company
Connect) to include but is not limited to that flanging connection, rivet interlacement, bonding connection and welded connecting etc. are conventional be fixedly connected with mode, it is described can
Dismantling connection include but is not limited to be threadedly coupled, snap connection, pin connection such as connect at the routine disassembly mode with hinge, not yet explicitly
When limiting specific connection type, at least one connection type can be found in existing connection type by, which being defaulted as, can be realized the function
Can, those skilled in the art can voluntarily select as needed.Such as: it is fixedly connected with selection and is welded to connect, be detachably connected selection
Hinge connection.
Above embodiments are exemplary description of this patent, do not limit its protection scope, those skilled in the art
Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.
Claims (3)
1. a kind of oil-filled submersible motor characterized by comprising motor case (1), drive end bearing bracket (2), rear end cap (3), it is preceding only
Thrust bearing (4), rear thrust bearing (5), machine shaft (6), stator (7) and rotor (8)；The front and back two of the motor case (1)
End is respectively arranged with drive end bearing bracket (2) and rear end cap (3), is provided with preceding thrust bearing (4), the rear end on the drive end bearing bracket (2)
It is provided with rear thrust bearing (5) on lid (3), is provided with motor between the preceding thrust bearing (4) and the rear thrust bearing (5)
Shaft (6), machine shaft (6) setting is in the motor case (1) and the drive end bearing bracket (2) are run through in one end, the electricity
It is provided in machine shaft (6) rotor (8), rotor (8) side is additionally provided with impeller (9), in the motor case (1)
It is additionally provided with stator (7), the stator (7) setting is in the rotor (8) outer end and corresponding with the rotor (8) position；
Fluid oil is filled in the motor case (1)；
It is machined with stator slot (71) on the stator (7), is set in the stator slot (71) and be wound with conducting wire (72), the conducting wire
(72) flat wire is used, the flat wire is wrapped in vertically in stator slot (71), and the stator (7) is internally provided with cooling oil path
(73)。
2. a kind of oil-filled submersible motor according to claim 1, which is characterized in that the liquid in the motor case (1)
State oil is rotated from motor case (1) rear end by impeller (9) via the air gap flow direction motor casing between stator (7) and rotor (8)
(1) front end, then motor case (1) rear end is flowed back to via the cooling oil path (73) on stator (7), form circulating cooling oil circuit
(73)。
3. a kind of oil-filled submersible motor according to claim 1, which is characterized in that the machine shaft (6) with it is described
Drive end bearing bracket (2) junction is provided with water seal (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910304230.XA CN109980833A (en) | 2019-04-16 | 2019-04-16 | A kind of oil-filled submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910304230.XA CN109980833A (en) | 2019-04-16 | 2019-04-16 | A kind of oil-filled submersible motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109980833A true CN109980833A (en) | 2019-07-05 |
Family
ID=67084869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910304230.XA Pending CN109980833A (en) | 2019-04-16 | 2019-04-16 | A kind of oil-filled submersible motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109980833A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571973A (en) * | 2019-10-21 | 2019-12-13 | 哈尔滨理工大学 | Double-layer shell internal circulation oil-filled submersible motor |
| CN112018935B (en) * | 2020-10-29 | 2021-04-30 | 湖南省兴瑞精密制造有限公司 | Motor casing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105122606A (en) * | 2013-04-15 | 2015-12-02 | 三菱电机株式会社 | Rotating electrical machine |
| CN206650533U (en) * | 2017-02-15 | 2017-11-17 | 天津赛鸥泵业有限公司 | A kind of seawater submersible pump submersible motor |
| CN107859633A (en) * | 2017-11-06 | 2018-03-30 | 深圳市泉胜新技术开发有限公司 | A kind of high-efficiency corrosion-resistant canned motor pump |
| CN207518435U (en) * | 2017-12-14 | 2018-06-19 | 利欧集团浙江泵业有限公司 | Accelerate heat dissipation protected type motor |
| CN109617319A (en) * | 2019-02-01 | 2019-04-12 | 清华大学 | Oily air-cooled structure in a kind of flat wire motor slot |
-
2019
- 2019-04-16 CN CN201910304230.XA patent/CN109980833A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105122606A (en) * | 2013-04-15 | 2015-12-02 | 三菱电机株式会社 | Rotating electrical machine |
| CN206650533U (en) * | 2017-02-15 | 2017-11-17 | 天津赛鸥泵业有限公司 | A kind of seawater submersible pump submersible motor |
| CN107859633A (en) * | 2017-11-06 | 2018-03-30 | 深圳市泉胜新技术开发有限公司 | A kind of high-efficiency corrosion-resistant canned motor pump |
| CN207518435U (en) * | 2017-12-14 | 2018-06-19 | 利欧集团浙江泵业有限公司 | Accelerate heat dissipation protected type motor |
| CN109617319A (en) * | 2019-02-01 | 2019-04-12 | 清华大学 | Oily air-cooled structure in a kind of flat wire motor slot |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571973A (en) * | 2019-10-21 | 2019-12-13 | 哈尔滨理工大学 | Double-layer shell internal circulation oil-filled submersible motor |
| CN112018935B (en) * | 2020-10-29 | 2021-04-30 | 湖南省兴瑞精密制造有限公司 | Motor casing |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190705 |
|
| WD01 | Invention patent application deemed withdrawn after publication |