CN201928145U - Internal-circulation oil-cooled permanent magnet direct-current (DC) motor - Google Patents
Internal-circulation oil-cooled permanent magnet direct-current (DC) motor Download PDFInfo
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- CN201928145U CN201928145U CN2011200666118U CN201120066611U CN201928145U CN 201928145 U CN201928145 U CN 201928145U CN 2011200666118 U CN2011200666118 U CN 2011200666118U CN 201120066611 U CN201120066611 U CN 201120066611U CN 201928145 U CN201928145 U CN 201928145U
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Abstract
The utility model discloses an internal-circulation oil-cooled permanent magnet direct-current (DC) motor and relates to a permanent magnet DC motor, in particular to an oil-cooled permanent magnet DC motor. A motor shaft is horizontally arranged in a shell. A rotor is installed on the motor shaft. A stator is arranged on the outer circumference of the rotor. The rotor is provided with a magnetic core which is laminated by disc steel sheets. A sealing device is installed on the motor. A cooling oil circulation system is arranged the motor. Cooling oil is filled in the motor. Steel sheet through holes are arranged on the disc steel sheets. When the disc steel sheets are laminated into the magnet core, the steel sheet through holes correspondingly form a cooling oil circulation passage. Limiting ring blades are arranged on the internal sides of two limiting rings. Circular limiting ring holes are arranged on the limiting ring blades. The positions and the number of the circular limiting ring holes are respectively consistent with the positions and the number of the steel sheet through holes on the disc steel sheets. A respirator is arranged at the external part of the shell. The two ends of a respirator catheter are respectively connected with the lower chamber of a respirator shell and the internal part of the shell. The internal-circulation oil-cooled permanent magnet DC motor solves the problems that the cooling effect of the existing similar motor is poor and permanent magnets cannot be directly cooled.
Description
Technical field
The utility model relates to permanent magnet DC motor, especially relates to a kind of oil injection type non-brush permanent-magnet DC motor.
Background technology
Electric machine temperature rise is directly determining the machine performance index, the too high service life and the efficient that will influence motor of temperature.No matter which kind of motor must be considered temperature rise index and heat dissipation problem how in the design of electrical motor process.Particularly concerning heavy-duty motor, the raising of heat-sinking capability just can improve power density, the torque density of motor, saves consumptive material simultaneously, reduces production costs, and helps bringing into play motor properties.The non-brush permanent-magnet DC motor of present various cooling structures is numerous, and its cooling structure adopts the recirculated water cooling mostly, offers the cool cycles tank in housing, adopts cast structure or Welding Structure mostly.No matter be the casting or the motor of Welding Structure housing, its housing processing technology complexity, difficulty is big, percent defective is high, and it is big in the non-brush permanent-magnet DC motor as the winding and the thermal resistance between the cooling water that produce main heat source, cooling effect is poor, can not directly cool off simultaneously permanent magnet, influence the motor performance performance, and the housing weld is prone to a series of problems such as crack seepage.
The utility model content
The purpose of this utility model provides a kind of interior circulating oil-cooling type permanent magnet DC motor, and it is poor that the utility model has solved existing similar motor cooling effect, the problem that can not directly cool off permanent magnet.
Circulating oil-cooling type permanent magnet DC motor in of the present utility model comprises rear end cap 3, housing 6, stator 8, winding coil 10, rotor 12, front end housing 13, motor shaft 15, backbone sealing ring 16; Rear end cap 3 and front end housing 13 are connected to housing 6 front and back ends, and motor shaft 15 is horizontally placed in the housing 6, and rotor 12 is installed on the motor shaft 15, and stator 8 is arranged on rotor 12 excircles, and stator 8 is provided with winding coil 10; Described rotor 12 builds up magnetic core by discoid steel disc 17, and the magnetic core periphery is fixed with rotor magnetic shoe 11, and the magnetic core two ends are provided with spacing ring 14; Also comprise backbone sealing ring 2 between end cap, housing rear portion O RunddichtringO 5, the anterior O RunddichtringO 9 of housing, backbone sealing ring 16, cold oil 4, respirator 7; Be respectively arranged with the anterior O RunddichtringO 9 of housing rear portion O RunddichtringO 5 and housing between housing 6 and rear end cap 3 and the front end housing 13, be separately installed with backbone sealing ring 2 and backbone sealing ring 16 between end cap in the endoporus of rear end cap 3 and front end housing 13; Be full of cold oil 4 in the motor, steel disc through hole 17-1 is arranged on the discoid steel disc 17, corresponding formation cold oil circulation canal between steel disc through hole 17-1 when discoid steel disc 17 builds up magnetic core, restraining position ring block blade 14-2 on two spacing rings 14, restraining position ring block circular hole 14-1 on spacing ring, spacing ring circular hole 14-1 position is consistent with steel disc through hole 17-1 number of positions on quantity and the discoid steel disc 17; Respirator 7 is arranged at housing 6 outsides, and respirator 7 comprises conduit 7-1, ventilator housing 7-2 and silica gel 7-3, and conduit 7-1 two ends connect ventilator housing 7-2 lower cavity and housing 6 inside respectively; In ventilator housing 7-2 upper chamber, silica gel 7-3 is arranged.
Further, interior circulating oil-cooling type permanent magnet DC motor of the present utility model also has following characteristics, at housing 6 outer surfaces radiating ribs 6-1 is arranged.
Circulating oil-cooling type permanent magnet DC motor in of the present utility model is a kind of simple in structure, working stability, power density and torque density is big, reliability is high permanent magnet DC motor.Advantage is: because motor internal is full of cold oil and can directly cools off the stator winding coil; good cooling results; and can cool off permanent magnet on the rotor simultaneously; effectively reduce the temperature of permanent magnet; can protect simultaneously permanent magnet not oxidized and demagnetize, guarantee the functional reliability of permanent magnet.Equally distributed radiating ribs has improved area of dissipation greatly on the housing excircle, has improved the power density and the torque density of motor.The cold oil of enclosure interior carries out sufficient lubrication to the motor bearings at both ends, has prolonged bearing life greatly, and can effectively reduce the overall operation noise, makes machine operation more stable, and reliability is higher.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model respiratory organ structure schematic diagram;
Fig. 3 is the structural representation of the utility model rotor.
Symbol description among the figure: motor rear end transducer 1, backbone sealing ring 2 between end cap, rear end cap 3, cold oil 4, housing rear portion O RunddichtringO 5, housing 6, radiating ribs 6-1, respirator 7, conduit 7-1, ventilator housing 7-2, silica gel 7-3, stator 8, the anterior O RunddichtringO 9 of housing, winding coil 10, rotor magnetic shoe 11, rotor 12, front end housing 13, spacing ring 14, spacing ring circular hole 14-1, spacing ring blade 14-2, motor shaft 15, backbone sealing ring 16, the discoid steel disc 17 of discoid steel disc, steel disc through hole steel disc through hole 17-1.
Embodiment
Below in conjunction with accompanying drawing and with illustrated embodiments the utility model is done detailed explanation.
Consult Fig. 1-Fig. 3, interior circulating oil-cooling type permanent magnet DC motor comprises rear end cap 3, housing 6, stator 8, winding coil 10, rotor 12, front end housing 13, motor shaft 15, backbone sealing ring 16; Rear end cap 3 and front end housing 13 are connected to housing 6 front and back ends, and motor shaft 15 is horizontally placed in the housing 6, and rotor 12 is installed on the motor shaft 15, and stator 8 is arranged on rotor 12 excircles, and stator 8 is provided with winding coil 10; Described rotor 12 builds up magnetic core by discoid steel disc 17, and the magnetic core periphery is fixed with rotor magnetic shoe 11, and the magnetic core two ends are provided with spacing ring 14; Also comprise backbone sealing ring 2 between end cap, housing rear portion O RunddichtringO 5, the anterior O RunddichtringO 9 of housing, backbone sealing ring 16, cold oil 4, respirator 7; Be respectively arranged with the anterior O RunddichtringO 9 of housing rear portion O RunddichtringO 5 and housing between housing 6 and rear end cap 3 and the front end housing 13, be separately installed with backbone sealing ring 2 and backbone sealing ring 16 between end cap in the endoporus of rear end cap 3 and front end housing 13; Be full of cold oil 4 in the motor, steel disc through hole 17-1 is arranged on the discoid steel disc 17, corresponding formation cold oil circulation canal between steel disc through hole 17-1 when discoid steel disc 17 builds up magnetic core, restraining position ring block blade 14-2 on two spacing rings 14, restraining position ring block circular hole 14-1 on spacing ring, spacing ring circular hole 14-1 position is consistent with steel disc through hole 17-1 number of positions on quantity and the discoid steel disc 17; Respirator 7 is arranged at housing 6 outsides, and respirator 7 comprises conduit 7-1, ventilator housing 7-2 and silica gel 7-3, and conduit 7-1 two ends connect ventilator housing 7-2 lower cavity and housing 6 inside respectively; In ventilator housing 7-2 upper chamber, silica gel 7-3 is arranged.
At housing 6 outer surfaces radiating ribs 6-1 is arranged.
Described rotor magnetic core is built up by discoid steel disc, and the centre offers a plurality of equally distributed circular holes, and circular hole is built up a plurality of cylinders, for the cold oil circulation provides passage.When machine operation, can improve the circulation flow rate of enclosure interior cold oil, make bulk temperature even, strengthen cooling effect, and reduced the inertia of rotor, improved motor sensitivity.
Not magnetic conduction magnet steel spacing ring with a plurality of even circular holes has been installed on the described rotor.Offer circular hole on this spacing ring, position, the quantity of circular hole are consistent on the position of its circular hole, quantity and the magnetic core, have guaranteed the cold oil circulation canal.This spacing ring is provided with blade, can strengthen circulating of cold oil when machine operation, has improved cooling effect.
Described cold oil has insulation property, good, the strong characteristics of high-low temperature resistant ability of cooling performance.Cold oil can also carry out effectively lubricating to motor bearings, has improved the functional reliability of motor bearings, has prolonged complete machine useful life.
Have many even distribution radiating ribs on the described electric machine casing circumference.The existence of radiating ribs has increased the area of dissipation of electric machine casing, has effectively improved the housing heat-sinking capability, has reduced the working temperature of motor, and particularly effect is especially obvious under the ventilation condition good conditions.
Described respirator has the self-regulation motor external and internal pressure, guarantees the operate as normal of cold oil and motor.When the bigger variation of ambient humidity, motor is inner when operation can to produce bigger positive and negative pressure, might destroy the hermetically-sealed construction of motor, cold oil is overflowed and damp failure.Under the conciliation effect of respirator, motor internal pressure is slowly discharged, automatic and ambient pressure keeps balance, and the breath device upper end is provided with silica gel, can air carries out drying in the housing to entering, guarantee inner cold oil functional reliability, and the silica gel long service life is changed simple, convenient.
Above embodiment is more preferably embodiment a kind of of the utility model, and the common variation that those skilled in the art carry out in the technical program scope and replacing should be included in the protection range of the present utility model.
Claims (2)
1. interior circulating oil-cooling type permanent magnet DC motor comprises rear end cap (3), housing (6), stator (8), winding coil (10), rotor (12), front end housing (13), motor shaft (15), backbone sealing ring (16); Rear end cap (3) and front end housing (13) are connected to housing (6) front and back end, motor shaft (15) is horizontally placed in the housing (6), rotor (12) is installed on the motor shaft (15), and stator (8) is arranged on rotor (12) excircle, and stator (8) is provided with winding coil (10); Described rotor (12) builds up magnetic core by discoid steel disc (17), and the magnetic core periphery is fixed with rotor magnetic shoe (11), and the magnetic core two ends are provided with spacing ring (14); It is characterized in that, also comprise backbone sealing ring between end cap (2), housing rear portion O RunddichtringO (5), the anterior O RunddichtringO (9) of housing, backbone sealing ring (16), cold oil (4), respirator (7); Be respectively arranged with the anterior O RunddichtringO (9) of housing rear portion O RunddichtringO (5) and housing between housing (6) and rear end cap (3) and the front end housing (13), be separately installed with backbone sealing ring between end cap (2) and backbone sealing ring (16) in the endoporus of rear end cap (3) and front end housing (13); Be full of cold oil (4) in the motor, steel disc through hole (17-1) is arranged on the discoid steel disc (17), discoid steel disc (17) corresponding formation cold oil circulation canal between the steel disc through hole (17-1) when building up magnetic core, two spacing rings (14) are provided with spacing ring blade (14-2), be provided with circular hole (14-1) on spacing ring, spacing ring circular hole (14-1) position is consistent with steel disc through hole (17-1) number of positions on quantity and the discoid steel disc (17); Respirator (7) is arranged at housing (6) outside, and respirator (7) comprises conduit (7-1), ventilator housing (7-2) and silica gel (7-3), and conduit (7-1) two ends connect ventilator housing (7-2) lower cavity and housing (6) inside respectively; In ventilator housing (7-2) upper chamber, silica gel (7-3) is arranged.
2. circulating oil-cooling type permanent magnet DC motor in as claimed in claim 1 is characterized in that at housing (6) outer surface radiating ribs (6-1) being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200666118U CN201928145U (en) | 2011-03-15 | 2011-03-15 | Internal-circulation oil-cooled permanent magnet direct-current (DC) motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200666118U CN201928145U (en) | 2011-03-15 | 2011-03-15 | Internal-circulation oil-cooled permanent magnet direct-current (DC) motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201928145U true CN201928145U (en) | 2011-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200666118U Expired - Lifetime CN201928145U (en) | 2011-03-15 | 2011-03-15 | Internal-circulation oil-cooled permanent magnet direct-current (DC) motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN201928145U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104297A (en) * | 2011-03-15 | 2011-06-22 | 李金东 | Internal circulation oil-cooled permanent-magnet direct-current motor |
| CN103151879A (en) * | 2013-04-03 | 2013-06-12 | 天津市松正电动汽车技术股份有限公司 | Liquid-cooled motor |
| CN110024270A (en) * | 2016-11-08 | 2019-07-16 | 艾罗斯电子公司 | Motor with liquid refrigerating function |
| CN111404309A (en) * | 2020-03-25 | 2020-07-10 | 宁波依诺汽车电子有限公司 | Miniature new energy automobile pump permanent magnet direct current motor |
-
2011
- 2011-03-15 CN CN2011200666118U patent/CN201928145U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104297A (en) * | 2011-03-15 | 2011-06-22 | 李金东 | Internal circulation oil-cooled permanent-magnet direct-current motor |
| CN102104297B (en) * | 2011-03-15 | 2013-09-11 | 李金东 | Internal circulation oil-cooled permanent-magnet direct-current motor |
| CN103151879A (en) * | 2013-04-03 | 2013-06-12 | 天津市松正电动汽车技术股份有限公司 | Liquid-cooled motor |
| CN110024270A (en) * | 2016-11-08 | 2019-07-16 | 艾罗斯电子公司 | Motor with liquid refrigerating function |
| CN111404309A (en) * | 2020-03-25 | 2020-07-10 | 宁波依诺汽车电子有限公司 | Miniature new energy automobile pump permanent magnet direct current motor |
| CN111404309B (en) * | 2020-03-25 | 2022-08-16 | 杨建才 | Miniature new energy automobile pump permanent magnet direct current motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Unite Motor Co.,Ltd. Assignor: Li Jindong Contract record no.: 2012990000566 Denomination of utility model: Internal circulation oil-cooled permanent-magnet direct-current motor Granted publication date: 20110810 License type: Exclusive License Record date: 20120806 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110810 Effective date of abandoning: 20130911 |
|
| RGAV | Abandon patent right to avoid regrant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Unite Motor Co.,Ltd. Assignor: Li Jindong Contract record no.: 2012990000566 Denomination of utility model: Internal circulation oil-cooled permanent-magnet direct-current motor Granted publication date: 20110810 License type: Exclusive License Record date: 20120806 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |