CN105162288A - Oil internal circulation cooling motor - Google Patents
Oil internal circulation cooling motor Download PDFInfo
- Publication number
- CN105162288A CN105162288A CN201510489519.5A CN201510489519A CN105162288A CN 105162288 A CN105162288 A CN 105162288A CN 201510489519 A CN201510489519 A CN 201510489519A CN 105162288 A CN105162288 A CN 105162288A
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- oil
- rotor
- motor
- cooling
- rotor ball
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
An oil internal circulation cooling motor comprises a coolant oil transfer variable frequency pump assembly 26, a coolant coil heat exchanger 27, a cooling fan 28, an enclosed motor 29 and a coolant oil transfer pipeline 25. The oil internal circulation cooling motor is characterized in that an enclosed motor shell 1 is provided with a coolant oil inlet 4 and a coolant oil outlet 5; a cooling channel 30 is arranged between the outer diameter of a stator 6 and the inner diameter of the shell; two end surfaces of a rotary ball 32 of a rotor 7 are provided with a front end cover plate 14 and a rear end cover plate 15; the front end cover plate 14 and the rear end cover plate 15 form a smooth cylindrical outer surface with the rotary ball 32; and a rotary shaft 13 is provided with a front oil seal 11 and a rear oil seal 36 at inner sides of a front bearing 10 and a rear bearing 9 respectively.
Description
Technical field
The present invention relates to a kind of oily Inner eycle cooling motor.
Background technology
Cooling at present for micro-machine all adopts the outer cooling means of wind and internal cooling method, also has and adopts electric machine casing intermediate water cooling method.But above cooling means all can not meet the requirement of high efficiency cooling, then having large-size machine adopts wire endoporus to lead to the cooling fluid type of cooling, but volume is large, complex process, little for wanting cube, lightweight and the equal existing defects of the above method of the motor of high efficiency and heat radiation, how effectively to the heat radiation of the rotor unsolved problem of technology at present especially, even the heat dissipation problem of its rotor of wire inner-cooled heavy motor also and unresolved effective rotor dispersing heat problem.Along with the development of science and technology and the mankind are to the requirement of environmental protection, low-carbon energy-saving has been the main flow of society, how effectively to improve electric efficiency, and improve the power to weight ratio coefficient of motor, reaching energy-efficient requirement, is current urgent problem.But how to realize high efficiency and heat radiation to motor be effectively improve the effective way that electric efficiency is energy-saving and emission-reduction.
Summary of the invention
In view of prior art is not enough, the object of the present invention is to provide a kind of oily Inner eycle cooling motor.
To achieve these goals, technical scheme of the present invention is: a kind of oily Inner eycle cooling motor, comprise cold oil delivery pump assembly, cooled oil heat exchanger, cooling fan, enclosed motor and oily conveyance conduit, described enclosed motor is provided with cold oil passage between stator outer diameter and casing internal diameter, the outer face, front and back two being arranged on the rotor ball on armature spindle is provided with the front and back end cover plate of two through armature spindles, by two nuts outside the cover plate of front and back end and armature spindle fastening under, and be combined into the cylinder of a smooth outer surface with rotor ball, motor front and back bearings is respectively arranged with oil sealing by rotor ball inside portion, electric machine casing is provided with cold oil to import and export.
Further, the described end casing being arranged on the rotor ball on armature spindle and being arranged on rotor ball rear and front end by two nuts outside the cover plate of front and back end under fastening with armature spindle, the cylinder of the smooth outer surface combined, rotor balance is provided with between its rotor ball end and front and back end cover plate, rotor balance is fixed on by screw or balancing patch the front and back end cover plate medial surface that front and back end cover plate and rotor ball contact, in front and back end, cover plate outer setting has fastening nuts nut, can by firm for cover plate in rotor ball both ends of the surface.
Further, described enclosed motor is respectively arranged with a seal in motor front and rear covers bearing inside portion, leaks in order to prevent motor internal cooling machine oil.
Further, described cold oil conveying frequency conversion oil pump assy controls rotating speed by CPU, according to being arranged on the signal value of thermocouple probe of enclosed motor internal stator winding through CPU process, control the pump housing working speed of frequency conversion oil pump assy, reach the output valve object realizing changing pump housing cold oil flow, to change the radiating effect of enclosed motor, realize the controllable heat dissipation to enclosed motor.
Advantage of the present invention: adopt the high pressure resistant non-conductive cold oil of low sticky examination to carry out direct cooling to enclosed motor inside rotor and winding, good cooling results, air-cooled relative to employing motor housing interlayer oil injection type, water-cooled and shell and internally air-cooled all have excellent radiating effect.Oil medium direct cooling raio air cooling heat is high containing value, from specific heat, and the specific heat (1.003KJ/kg DEG C) of air, specific heat of water (4.2KJ/kg DEG C), the specific heat (2.1KJ/kg DEG C) of oil.The heat of water and oil is all high than air containing value by contrast, heat radiation is crucial to be the temperature difference between heat-conduction medium and rotor and winding and to be contained by the flow of medium and the heat of medium, the temperature difference is high, flow is large, the heat of medium is containing high, then radiating effect is all right, is controlled on rate-of flow simultaneously, is that the way reaching adjustment rate-of flow according to the requirement that reality uses by the rotating speed of CPU control break frequency conversion oil pump by the signal of temp probe feedback controls radiating effect.But because cooling oil surface tension when working rotor rotates can produce resistance to rotor motion process.For 22KW magneto, when rotating speed is below 2000 revs/min, the resistance of liquid tension is damaged and is greater than 1.3%, this drag losses and air-cooled time mechanical loss be close, but if rotating speed is high, when reaching 3000 revs/min, then loss rises to 3.5%, and it is square being directly proportional of transfer speed that this resistance is damaged.Thus this technology is applied in the high-power Low speed electric motor of rotating speed less than 2000 revs/min then effect is better, particularly current application on hybrid vehicle has better applicable effect, hybrid vehicle adopts fuel power work when high speed, then switches motorized motions during low speed.Like this, driven by fuel power during high speed and dynamically working can be made in efficient situation, during low speed, fuel power then enters poor efficiency operating mode, thus switches motorized motions, and now then efficiency is very high again for electric drive, can reach again the effect of reduction of discharging simultaneously.Adopt medium directly to cool and effectively can reduce the copper loss of stator and the iron loss of motor, can effectively stop stator to the thermal radiation of rotor for magneto, rotor heat radiation this difficult problem difficult is solved especially for asynchronous machine, the thermal losses of asynchronous machine rotor big current low-voltage temperature height is large, does not also have effective solution at present.It is high that this invention can realize electric efficiency, and volume is little, lightweight, to be particularly commonly employed prospect for the use of current pure electric automobile industry.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further elaborated.
With reference to figure 1, 2, 3, the present embodiment operation principle, structural representation, comprise oily Inner eycle cooling enclosed motor 29, cold oil delivery pump assembly 26, cold oil feed tube 25, cold oil feed tube 25 is connected with cold oil delivery pump and enclosed motor oil-out 5 respectively, another outlet of cold oil conveying variable frequency pump assembly 26 is connected with the import of cooled oil heat exchanger 27, be connected with the oil-in 4 of enclosed motor 29 by petroleum pipeline 25 in another outlet of cooled oil heat exchanger 27, described enclosed motor supports its stator by convex tendon 31 and casing 1 mezzanine space 30 is cold oil passage at stator 6 external diameter and casing 1, the rotor 7 of described enclosed motor is by armature spindle 13 and rotor ball 32 front shroud 14, rotor ball 32 back shroud 15, rotor ball 32 rear-end plate balance weight 16, rotor ball 32 front shroud hold-down nut 18, rotor ball front shroud balance weight 17, rotor ball back shroud hold-down nut 19 combines, illustrate 2 enclosed type electric motor rotor structure method A, described armature spindle 13 runs through rotor ball 32 to be fixed, described rotor ball 32 is shaped by aluminium die casting is fixing, rear ends is fixed with front shroud 14 and back shroud 15, rotor ball 32 and front shroud 14, back shroud 15 is combined into the cylinder geometry shape of a smooth surface, the resistance loss caused by cold oil surface tension when can reduce rotor turns like this, described front shroud 14, back shroud 15 is fixed on rotor ball 32 both ends by rotor ball cover board of front end hold-down nut 18 and rotor ball rear-end plate hold-down nut 19 respectively by armature spindle 13 respectively, described rotor ball cover board of front end 14 and rotor ball rear-end plate 15 are provided with rotor ball cover board of front end balance weight 16 and rotor ball rear-end plate balance weight 17 at two end cover plate by inside rotor ball 32 respectively, and balance weight is all fixed on the cover plate of rear and front end, in order to the moment of inertia of balancing rotor, simultaneously because balance weight is arranged on inner side, resistance loss during rotor turns is not produced because of the special type of balance block structure shape.Fig. 3 be enclosed type electric motor rotor structure schematic diagram method B and method category-A seemingly, but difference is: 1, the both ends of the surface of its rotor ball 32 are respectively arranged with rotor ball front end fixation clip 23 and rotor ball rear end fixation clip 24, and rotor ball 32 is fixed by bolt 33 by rotor ball 32 front end hold-down nut 20 and rotor ball 32 rear end hold-down nut 2 by front and back end two pressing plate; 2, rotor ball cover board of front end 18 and rear-end plate 19 method A and method B structurally distinguish to some extent, as Fig. 2, Fig. 3 show, before rotor ball front end fixation clip 23 and rear end fixation clip 24 and rotor ball, after end clamp plate hold-down nut 19 and rotor ball, end clamp plate hold-down nut 18 and set bolt 33 are all arranged between face, rotor ball rear and front end and rotor ball front and back end two end cover plate 14,15, surface, front and back end cover plate 14,15 outer and surface, rotor ball 32 outer form a smooth surface, cylinder outer, reach the resistance reducing rotor motion and cause because of cold oil tension force.
During enforcement, cold oil frequency conversion oil pump assy 26 works, cold oil through cold oil conveyance conduit 25 through cooled oil heat exchanger 27, 28 pairs of cooled oil heat exchangers 27 of cold oil cooling fan carry out cooling heat dissipation simultaneously, through cooled cold oil through cold oil feed tube 25 enter enclosed motor 29 cold oil oil-in 4 enter enclosed motor 29 inner chamber after room enter enclosed motor inner chamber cup through cold oil passage 30 and the rotor inter-air space 37, thereafter go out from cold oil oil-out 5, cold oil frequency conversion oil pump assy 26 is entered through cold oil petroleum pipeline 25, form a kind of enclosed cold oil circulatory system, realize enclosed type electric machine rotor 7, the cooling of stator 6 and winding, be provided with temp probe 34, the pump housing working speed of frequency conversion oil pump assy 26 can be controlled by cpu system 35, then pump housing rotating speed is high to change frequency conversion pump speed detecting temperature height according to the change of winding temperature, otherwise detecting temperature low then frequency conversion pump speed is low, normally cooling-oil outlet temperature is controlled good cooling results between 45 DEG C ~ 60 DEG C.
Accompanying drawing explanation
fig. 1 is embodiment of the present invention oil Inner eycle cooling motor structural principle schematic diagram.
fig. 2 is embodiment of the present invention enclosed type electric motor rotor structure method A schematic diagram.
fig. 3 is embodiment of the present invention enclosed type electric motor rotor structure method B schematic diagram.
Claims (3)
1. an oily Inner eycle cooling motor, comprise cold oil conveying variable frequency pump assembly 26, cooled oil heat exchanger 27, cooling fan 28, enclosed motor 29, cold oil conveyance conduit 25, it is characterized in that: described enclosed type electric engine housing 1 is provided with cooling-oil inlet 4 and cooling-oil outlet 5, stator 6 external diameter and casing are with being provided with cooling duct 30 between internal diameter, the both ends of the surface of its rotor ball 32 of rotor 7 are provided with cover board of front end 14 and rear-end plate 15, a smooth cylindrical outer surface is combined into rotor ball 32, armature spindle 13 is in the inner side of fore bearing 10 and rear bearing 9, be respectively arranged with Front oil seal 11 and Rear oil seal 36.
2. the one oil Inner eycle cooling motor required by right 1, it is characterized in that: the medial surface of cover board of front end 14 rear-end plate 15 of the rotor ball 32 of described enclosed motor 29 rotor 7 and rotor ball 32 both ends of the surface adjacent are respectively arranged with the balance weight 17 be fixed on inside cover board of front end and the balance weight 16 be fixed on inside rear-end plate, cover board of front end hold-down nut 18 and axle 13 is had to be fixedly connected in the arranged outside of rotor ball 32 cover board of front end 14, have rear-end plate hold-down nut 19 in the arranged outside of the rear-end plate 15 of rotor ball 32, and axle 13 is fixedly connected.
3. a kind of Inner eycle cooling motor required by right 1, it is characterized in that: described cold oil conveying frequency conversion oil pump assy 26 controls rotating speed by CPU35, according to being arranged on the signal value of thermocouple probe 34 of enclosed motor 32 internal stator 6 winding through CPU35 process, control the pump housing working speed of frequency conversion oil pump assy 26, reach the output valve object realizing changing pump housing cold oil flow, to change the radiating effect of enclosed motor 32, realize the controllable heat dissipation to enclosed motor 32.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510489519.5A CN105162288B (en) | 2015-08-12 | 2015-08-12 | Circulation cooling electromechanical in a kind of oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510489519.5A CN105162288B (en) | 2015-08-12 | 2015-08-12 | Circulation cooling electromechanical in a kind of oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105162288A true CN105162288A (en) | 2015-12-16 |
| CN105162288B CN105162288B (en) | 2018-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510489519.5A Expired - Fee Related CN105162288B (en) | 2015-08-12 | 2015-08-12 | Circulation cooling electromechanical in a kind of oil |
Country Status (1)
| Country | Link |
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| CN (1) | CN105162288B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712391A (en) * | 2017-02-21 | 2017-05-24 | 福安市裕兴机械有限公司 | Self-circulating cooling oil pump motor |
| CN109617310A (en) * | 2018-10-23 | 2019-04-12 | 展欣（宁波）新能源科技有限公司 | A kind of hub motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2886905Y (en) * | 2006-04-03 | 2007-04-04 | 中国北车集团永济电机厂 | Fully enclosed variable-frequency speed-regulating asynchronous motor |
| CN101034828A (en) * | 2006-03-07 | 2007-09-12 | 上海上电电机有限公司 | Water-cooling three-phase asynchronous high-speed motor |
| JP2010239799A (en) * | 2009-03-31 | 2010-10-21 | Aisin Aw Co Ltd | Rotating electric machine and end plate for rotating electric machine |
| JP2012105465A (en) * | 2010-11-11 | 2012-05-31 | Toyota Motor Corp | Rotating electric machine |
| CN103703659A (en) * | 2011-07-28 | 2014-04-02 | 丰田自动车株式会社 | Rotary electric machine and method for controlling rotary electric machine |
| CN205248989U (en) * | 2015-08-12 | 2016-05-18 | 福安市广源机电有限公司 | Circulative cooling motor in oil |
-
2015
- 2015-08-12 CN CN201510489519.5A patent/CN105162288B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034828A (en) * | 2006-03-07 | 2007-09-12 | 上海上电电机有限公司 | Water-cooling three-phase asynchronous high-speed motor |
| CN2886905Y (en) * | 2006-04-03 | 2007-04-04 | 中国北车集团永济电机厂 | Fully enclosed variable-frequency speed-regulating asynchronous motor |
| JP2010239799A (en) * | 2009-03-31 | 2010-10-21 | Aisin Aw Co Ltd | Rotating electric machine and end plate for rotating electric machine |
| JP2012105465A (en) * | 2010-11-11 | 2012-05-31 | Toyota Motor Corp | Rotating electric machine |
| CN103703659A (en) * | 2011-07-28 | 2014-04-02 | 丰田自动车株式会社 | Rotary electric machine and method for controlling rotary electric machine |
| CN205248989U (en) * | 2015-08-12 | 2016-05-18 | 福安市广源机电有限公司 | Circulative cooling motor in oil |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712391A (en) * | 2017-02-21 | 2017-05-24 | 福安市裕兴机械有限公司 | Self-circulating cooling oil pump motor |
| CN106712391B (en) * | 2017-02-21 | 2019-07-09 | 福安市裕兴机械有限公司 | Self-loopa cools down Oil pump electrical machinery |
| CN109617310A (en) * | 2018-10-23 | 2019-04-12 | 展欣（宁波）新能源科技有限公司 | A kind of hub motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105162288B (en) | 2018-03-27 |
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Granted publication date: 20180327 Termination date: 20180812 |
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| CF01 | Termination of patent right due to non-payment of annual fee |