CN206099569U - Electric motor rotor cooling structure - Google Patents
Electric motor rotor cooling structure Download PDFInfo
- Publication number
- CN206099569U CN206099569U CN201621134428.6U CN201621134428U CN206099569U CN 206099569 U CN206099569 U CN 206099569U CN 201621134428 U CN201621134428 U CN 201621134428U CN 206099569 U CN206099569 U CN 206099569U
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- oil
- cooling
- rotor
- electric motor
- end cap
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Abstract
Electric motor rotor cooling structure belongs to the electric machine cooling field, and it makes the whole cooling of electric motor rotor through the cooling fluid of impressing in the electric motor rotor body -internal -circulation. Electric motor rotor cooling structure includes high -speed rotary connector, ferrule pipe joint, the electric motor rotor body, local trompil rotor shaft etc. Contain bearing, sealing washer, external interface among the high -speed rotary connector, ferrule pipe joint contains cutting ferrule, nut, the joint body, composite pad circle etc, when electric motor rotor personally experiences sth. Part of the body the relevant position cast aluminium, utilize the dummy shaft to cast into the aluminum pipe in the relevant position of rotor block to make short circuit ring and the aluminum pipe of casting in the rotor block cast an organic whole, in local trompil rotor shaft relevant position open -blind hole and be equipped with the screw hole of fixed cutting ferrule formula coupling, the oil catcher is including collection oil box and reinforced seal. The utility model discloses a wholly cooling of rotor block is realized to cooling fluid, reduces the possibility of burning the machine, avoids the potential safety hazard of coolant liquid leakage, reduces the vibration noise of motor, has lengthened the life of motor.
Description
Technical field
This utility model is related to motor cooling field, especially a kind of cage rotor oil cooling structure.
Background technology
Present motor working current is big, rotating speed is high, so motor itself can produce very big heat in work process.It is existing
Electric motor temperature reduction method it is limited, cooling-down effect is not obvious, so as to the high temperature of motor internal be difficult reduce.Due to motor internal around
Insulant resistivity between group can decline in the case of a high temperature, if after temperature reaches certain limit, insulator can occur
Conductive situation, makes motor internal short circuit in winding, severe patient that fire can occur.From this, a kind of rational cooling structure of design
It is critical that.
The structure of most of rotor coolings has two kinds at present, first, air-cooled structure, i.e., be provided with fan in rotor shaft end
Blade, fan blade follow armature spindle to rotate together, and motor two ends end cap is provided with air-through holes, and fan blade rotates and promotes to turn
The air high speed circulation in sublist face, takes away the heat of rotor surface, so that rotor is cooled down.Second, rotor water cooling knot
Structure, its primary structure are exactly that blind hole is beaten on armature spindle, and its blind hole reaches rotor top always from armature spindle bottom, empty in rotor
The mode that cold water outflow hot water is passed through in heart axle realizes the purpose in internal rotor cooling.Air-cooled power consumption is big, the effect of cooling compared with
Difference, noise are big；The specific heat capacity of water is little, and the heat that can be taken away under identical flow velocity, volume compared with cooling oil is less, realizes rotor
The local cooling of axle, the leakage potential safety hazard of coolant are larger；Longer perforate is carried out to machine shaft, the machine of machine shaft is made
Tool characteristic occurs to become.
The content of the invention
In order to reduce power consumption, reduce noise, reduce potential safety hazard, ensure that the mechanical property of partially perforation rotor axis of electric is protected
Keep steady and determine, improve cooling effect, this utility model provides a kind of rotor cooling structure.
Rotor cooling structure, including partially perforation rotor axis of electric, oil catcher, motor front end cover, end cap fixation spiral shell
Bolt, short-circuited conducting sleeve, motor stator, ferrule-type compression joint, oil ring outer end cap, back end cover for motor, swivel joint, cooling oil-in, office
Portion's perforate rotor shaft rear end, swivel bearing, aluminum pipe, oil pump, rotor block, fuel tank, oil pump, oil ring fastening bolt, skeleton oil
Envelope, seal washer, chiller.It is characterized in that partially perforation rotor axis of electric is easy to profit in corresponding design attitude perforate
It is connected with oil ring outer end cap with ferrule-type compression joint and oil pipe, is easy to the smooth circulation of cooling oil；The setting of oil catcher is the bottom of at
End perforate, and utilize ferrule-type compression joint and oil pipe to be connected with fuel tank, is easy to cooling oil to flow back to fuel tank, and pass through outside framework oil seal and
Armature spindle is mutually closely connected；Motor front and rear cover is fixed on motor housing using end cap fixing bolt, and by rotation
Bearing is in mating connection with partially perforation rotor axis of electric；When being cast to rotor block relevant position using dummy shaft, improve original
Aluminum strip shape mouse cage be aluminum pipe shape mouse cage, and by short-circuited conducting sleeve and aluminum pipe cast solid；Oil ring outer end cap fitted seal packing ring passes through
Oil ring fastening bolt is fixedly connected to form oil ring with short-circuited conducting sleeve；Swivel joint is internally provided with bearing, sealing ring, cooling oil
Input and delivery outlet；Chiller acts on fuel tank, the high temperature cooling fluid in cooling oil box.Between oil pump and swivel joint,
Pass through ferrule-type compression joint between partially perforation rotor axis of electric and oil ring outer end cap, between oil catcher and fuel tank and oil pipe is tight
Connection；Closely connected by screw thread between swivel joint and partially perforation rotor shaft rear end；Short-circuited conducting sleeve is being utilized with aluminum pipe
Cast solid when dummy shaft is cast to rotor block relevant position, and by oil ring fastening bolt fitted seal packing ring and oil ring outer end cap
It is fixedly connected to form oil ring；Oil catcher is closely connected with armature spindle by outside framework oil seal.
The beneficial effects of the utility model are：
Reduce power consumption when cooling down, reduce noise, the potential safety hazard that reduction coolant leakage brings, ensure that partially perforation is electric
The mechanical property of machine rotor axle keeps stable, improves cooling effect.During cast aluminium is carried out in rotor block, by Mus
Cage makes aluminium tube type, forms cooling duct, it is ensured that cooling oil is by rotor block all realizing the mesh of the cooling of rotor entirety
, can be effectively electric motor temperature reduction, reduce electric motor short circuit, burn the probability of machine；Cooled down using fluid, the specific heat ratio water of oil
Greatly, more heats can be taken away under the same terms, cooling-down effect becomes apparent from, meanwhile, the insulating properties of fluid is high, it is to avoid because cold
But liquid reveals the motor internal short circuit in winding for causing；Cooling oil is pressed at a high speed from static pump oil equipment using swivel joint
Inside the rotor of rotation, its fastening structure, good airproof performance, working stability；Oil catcher is opened with local using outside framework oil seal
Hole rotor axis of electric mutually closely connects, and effectively prevent the leakage because of cooling oil.Cooling oil is made in motor internal using oil pump
Work is smoothly circulated, makes cooling effect more significantly.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1, partially perforation rotor axis of electric, 2, oil catcher, 3, motor front end cover, 4, end cap fixing bolt, 5, short circuit
Ring, 6, motor stator, 7, ferrule-type compression joint, 8, oil ring outer end cap, 9, back end cover for motor, 10, swivel joint, 11, cooling oil
Entrance, 12, partially perforation rotor shaft rear end, 13, swivel bearing, 14, aluminum pipe, 15, oil pump, 16, rotor block, 17, fuel tank,
18th, cool down oil outlet, 19, oil ring fastening bolt, 20, outside framework oil seal, 21, seal washer, 22, chiller.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail：
Rotor cooling structure, as shown in Fig. 1, its structure includes, partially perforation rotor axis of electric 1, oil catcher 2, electricity
Machine drive end bearing bracket 3, end cap fixing bolt 4, short-circuited conducting sleeve 5, motor stator 6, ferrule-type compression joint 7, oil ring outer end cap 8, motor rear end
Lid 9, swivel joint 10, cooling oil-in 11, partially perforation rotor shaft rear end 12, swivel bearing 13, aluminum pipe 14, oil pump
15th, rotor block 16, fuel tank 17, cooling oil outlet 18, oil ring fastening bolt 19, outside framework oil seal 20, seal washer 21, cooling dress
Put 22.The partially perforation rotor axis of electric 1 is easy to using ferrule-type compression joint 7 and oil pipe in corresponding design attitude perforate
It is connected with oil ring outer end cap 8, forms path, be easy to the smooth circulation of cooling oil；The setting of oil catcher 2 be in bottom perforate, and
It is connected with fuel tank 17 using ferrule-type compression joint 7 and oil pipe, is easy to cooling oil to flow back to fuel tank, and by outside framework oil seal 20 and local
Perforate armature spindle 1 is in mating connection, prevents cooling oil from revealing；Motor front and rear cover 3,9 is fixed on electricity using end cap fixing bolt 4
It is on machine shell and in mating connection with partially perforation rotor axis of electric 1 by swivel bearing 13；Short-circuited conducting sleeve 5 is with aluminum pipe 14 in profit
Cast solid when being cast to rotor block relevant position with dummy shaft, makes cooling oil completely through in internal rotor, so as to more preferable
Cooling rotor；Oil ring outer end cap 8 is fixedly connected to form oil with short-circuited conducting sleeve 5 by 19 additional seal washer 21 of oil ring fastening bolt
Ring；Be internally provided with bearing, sealing ring, the cooling oil of swivel joint 10 is input into and delivery outlet, after swivel joint and armature spindle
End 12 is closely connected with screw thread, and cooling oil is pressed into inside the rotor of rotation at a high speed from static pump oil equipment；Cooling
Device 22 acts on fuel tank 17, cools down to the cooling oil in fuel tank.
During use, using 15 pump oil of oil pump, the cooling oil pressure in oil pipe is improved, cooling oil is connect by bite type tube
7 are pressed into swivel joint 10 by coolant inlet 11, and enter partially perforation rotor shaft rear end 12, in corresponding perforate
Place is that cooling oil is once shunted, and enters oil by the oil pipe and bite type swivel joint 7 with the symmetrical connection of armature spindle
Ring, coolant carry out second diffluence in oil ring, enter in each aluminum pipe 14 of the casting of rotor block 16, so as to take away rotor
Heat, after aluminum pipe 14 enter motor front end oil ring, once collaborated, after interflow by symmetrical oil pipe enter local
Perforate armature spindle 1, carries out secondary interflow, the cooling oil after interflow using the armature spindle centrifugal force that at a high speed rotation is produced splash into
Enter oil catcher 2, the cooling oil in oil catcher 2 comes together in the bottom of oil catcher 2 using gravitational effect, and connects by bite type tube
7 and oil pipe flow back in fuel tank 17, it is after outside chiller 22 is cooled down to the cooling oil in fuel tank 17, cold
But oil carries out rotor cooling circulation next time again, goes round and begins again, so as to take away the heat inside rotor, completes fluid cold
But function.
Claims (5)
1. rotor cooling structure, including partially perforation armature spindle（1）, oil catcher（2）, motor front end cover（3）, end cap fixes
Bolt（4）, short-circuited conducting sleeve（5）, motor stator（6）, ferrule-type compression joint（7）, oil ring outer end cap（8）, back end cover for motor（9）, rotation
Adaptor（10）, cooling oil-in（11）, partially perforation rotor shaft rear end（12）, swivel bearing（13）, aluminum pipe（14）, oil
Pump（15）, rotor block（16）, fuel tank（17）, cooling oil outlet（18）, oil ring fastening bolt（19）, outside framework oil seal（20）, it is close
Seal washer（21）, chiller（22）, it is characterised in that the partially perforation armature spindle（1）In corresponding design attitude perforate,
It is easy to utilize ferrule-type compression joint（7）With oil pipe and oil ring outer end cap（8）It is connected, is easy to the smooth circulation of cooling oil, the collection
Oily device（2）Setting be, in bottom perforate, and to utilize ferrule-type compression joint（7）With oil pipe and fuel tank（17）It is connected, is easy to cooling
Oil flows back to fuel tank, and passes through outside framework oil seal（20）With partially perforation armature spindle（1）It is closely connected, the motor front and rear cover
（3）、（9）Using end cap fixing bolt（4）It is fixed on motor housing, and passes through swivel bearing（13）With partially perforation armature spindle
（1）It is in mating connection, the short-circuited conducting sleeve（5）With aluminum pipe（14）To rotor block（16）Relevant position is cast when being cast using dummy shaft
Integrally, the oil ring outer end cap（8）, seal washer（21）By oil ring fastening bolt（19）With short-circuited conducting sleeve（5）It is fixedly connected shape
Into oil ring, the swivel joint（10）Be internally provided with bearing, sealing ring, cooling oil input and delivery outlet, the cooling
Device（22）Fuel tank is acted on, the high temperature cooling fluid in cooling oil box.
2. rotor cooling structure according to claim 1, it is characterised in that：Oil pump（15）With swivel joint（10）It
Between, partially perforation armature spindle（1）With oil ring outer end cap（8）Between, oil catcher（2）With fuel tank（17）Between connect by bite type tube
Head（7）Closely connect with oil pipe.
3. rotor cooling structure according to claim 1, it is characterised in that：Swivel joint（10）With partially perforation electricity
Machine rotor shaft rear end（12）Between closely connected by screw thread.
4. rotor cooling structure according to claim 1, it is characterised in that：Oil catcher（2）By outside framework oil seal
（20）With partially perforation armature spindle（1）Mutually it is closely connected.
5. rotor cooling structure according to claim 1, it is characterised in that：With oil ring outer end cap（8）Correspondence connects
Partially perforation armature spindle perforate number be 2 for even perforate number, and be symmetric with axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621134428.6U CN206099569U (en) | 2016-10-19 | 2016-10-19 | Electric motor rotor cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621134428.6U CN206099569U (en) | 2016-10-19 | 2016-10-19 | Electric motor rotor cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206099569U true CN206099569U (en) | 2017-04-12 |
Family
ID=59976043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621134428.6U Expired - Fee Related CN206099569U (en) | 2016-10-19 | 2016-10-19 | Electric motor rotor cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206099569U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451863A (en) * | 2016-10-19 | 2017-02-22 | 长春工业大学 | Motor rotor cooling structure |
| CN107276317A (en) * | 2017-06-16 | 2017-10-20 | 余雷 | A kind of internal rotor water-cooled machine |
| CN112213525A (en) * | 2020-09-22 | 2021-01-12 | 陕西航空电气有限责任公司 | Motor test switching structure and test structure thereof |
-
2016
- 2016-10-19 CN CN201621134428.6U patent/CN206099569U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451863A (en) * | 2016-10-19 | 2017-02-22 | 长春工业大学 | Motor rotor cooling structure |
| CN107276317A (en) * | 2017-06-16 | 2017-10-20 | 余雷 | A kind of internal rotor water-cooled machine |
| CN112213525A (en) * | 2020-09-22 | 2021-01-12 | 陕西航空电气有限责任公司 | Motor test switching structure and test structure thereof |
| CN112213525B (en) * | 2020-09-22 | 2024-04-09 | 陕西航空电气有限责任公司 | Motor test switching structure and test structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20181019 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |