CN201594779U - Independent wheel hub traction apparatus - Google Patents
Independent wheel hub traction apparatus Download PDFInfo
- Publication number
- CN201594779U CN201594779U CN2009202741402U CN200920274140U CN201594779U CN 201594779 U CN201594779 U CN 201594779U CN 2009202741402 U CN2009202741402 U CN 2009202741402U CN 200920274140 U CN200920274140 U CN 200920274140U CN 201594779 U CN201594779 U CN 201594779U
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- China
- Prior art keywords
- motor
- cooling water
- water pipe
- hollow shaft
- traction device
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- 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.)
- Expired - Lifetime
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- Electric Propulsion And Braking For Vehicles (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model relates to an independent wheel hub traction apparatus which is mainly applied to urban low-floor rail vehicles. The independent wheel hub traction apparatus comprises a hollow shaft fixed on a vehicle framework, and an outer rotor permanent magnet brushless DC motor, wherein the outer rotor permanent magnet brushless DC motor is provided with a stator iron core and an outer rotor which can be also taken as a machine shell; the stator iron core is fixed on the hollow shaft, and is internally provided with a cooling pipe filled with a cooling medium; a cooling medium outlet of the cooling pipe is connected with an inlet of a radiator installed on the vehicle framework, and an outlet of the radiator is connected with an inlet of a water pump arranged on the vehicle framework; and an outlet of the water pump is connected with an inlet of the cooling pipe. Under the premise of ensuring higher mechanical efficiency, a traction motor is added with a cooling device, so that the independent wheel hub traction apparatus effectively improves the cooling effect for the motor and the long-term operation reliability of the motor under the condition of complicated environment.
Description
Technical field
The utility model relates to a kind of independent hub traction device, is mainly used in urban low-floor rail vehicle especially.
Background technology
The passenger gets on or off the bus for the ease of the city, reduces radius of turn, reduces the cost of circuit and platform, and city railway vehicle adopts low floor vehicle usually.Because the height of floor from rail top of low-floor light rail vehicle has only about 300～400mm, the structural design space of bogie is very narrow and small, in order to realize 100% low-floor of vehicle, and guarantee the safe operation of vehicle, now generally adopt the traction electric machine of wheel hub motor as independently rotating wheel.The volume of this wheel hub electric motor is little, the power density height, because the electromagnetic load height, ventilation effect is poor, and electric machine temperature rise is higher, except adopting the higher class of insulation, must take effective cooling provision to it.
Prior art adopts the method for self-ventilation or forced ventilation that wheel hub motor is cooled off mostly, when adopting forced ventilation, forced ventilation equipment need be housed in railway carriage, but because the space is narrow and small, a lot of difficulties can occur in the mounting, commissioning and maintenance process.Though adopt self-ventilated machine can avoid laying air pipe and offer ventilation hole in car, the dust on ground, sewage, moisture etc. are brought into motor internal easily.And the effect of this ventilation cooling is limited, can't guarantee the long-time reliably working of motor.
The utility model content
The technical problems to be solved in the utility model is: the heat dispersion that the wheel hub motor that is adopted at present low-floor city railway vehicle exists is bad, and installation cooling device ten minutes situation of difficult, the utility model spy provides a kind of independent hub traction device with good cooling performance to solve this problem, under the prerequisite that guarantees the higher mechanical efficiency of motor, improved the reliability of motor long-time running under complicated environmental condition greatly.
The technical scheme that the utility model adopted is: a kind of independent hub traction device, be mainly used in the urban low-floor light rail vehicle, it includes hollow shaft that is fixed in car structure and the external rotor permanent magnet brshless DC motor that is arranged on the hollow shaft, the external rotor permanent magnet brshless DC motor has stator core, stator winding, power transmission line that links to each other with stator winding and the double external rotor of doing casing, hollow shaft is fixed in stator core, the yoke portion of stator core has some through holes, there is the cooling water pipe of loading cooling medium to be placed through through hole formation coil pipe back and forth, in the gap of cooling water pipe and stator core through hole, be filled with the heat-conducting glue compound, two leading-out ends of cooling water pipe are respectively advancing of coolant, outlet, the outlet of cooling water pipe links to each other with the import of the radiator that is installed on car structure, the outlet of radiator then is connected and installed in the import of the water pump of car structure, and exit of pump links to each other with the import of cooling water pipe again.
Be provided with some radiating ribs at the described double outer wall of doing the external rotor of casing.Rotor high-speed rotatablely moves down outside, and radiating ribs and air streams contact can dissipate the most of heat on the external rotor.
Be provided with the heat conduction fan that is used for balanced motor cavity heat at a described double end of doing the external rotor inner chamber of casing.The rotation of heat conduction fan makes motor cavity form air stream, and the heat distribution that helps motor cavity tends to balance.
What described radiator adopted is aluminum plate fin type radiator.
The material of described cooling water pipe is a stainless steel, and coolant adopts the aqueous solution of water or ethylene glycol.The coolant import and export of cooling water pipe is via drawing in the hollow shaft, the described power transmission line that links to each other with stator winding by the conduit cylinder-packing also via drawing in the hollow shaft.
The beneficial effects of the utility model are: be the low-floor city railway vehicle, especially 100% low-floor city railway vehicle provides a kind of independent hub traction device, this independent hub traction device adopts the external rotor permanent magnet brshless DC motor as the direct drive wheels of traction electric machine, under the prerequisite that has guaranteed higher mechanical efficiency, for traction electric machine has added a cover cooling device, improved cooling effect significantly than prior art, improved the reliability of motor long-time running under complicated environmental condition greatly motor.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation (broken section) of external rotor permanent-magnet brushless DC electric machine in the utility model.
Among the figure: 1. hollow shaft 2. external rotor permanent magnet brshless DC motor 2-1. stator core 2-2. stator winding 2-3. power transmission line 2-4. external rotors 3. cooling water pipes 4. radiators 5. water pumps 6. heat conduction fans 7. elastic wheels
Embodiment
A kind of independent hub traction device, be mainly used in the urban low-floor light rail vehicle, it includes hollow shaft 1 that is fixed in car structure and the external rotor permanent magnet brshless DC motor 2 that is arranged on the hollow shaft 1, the external rotor permanent magnet brshless DC motor has stator core 2-1, stator winding 2-2, power transmission line 2-3 that links to each other with stator winding 2-2 and the double external rotor 2-4 that does casing, stator core 2-1 is fixed in hollow shaft 1, the yoke portion of stator core 2-1 has some through holes, there is the cooling water pipe 3 of loading cooling medium to be placed through through hole formation coil pipe back and forth, in the gap of cooling water pipe 3 and stator core 2-1 through hole, be filled with the heat-conducting glue compound, two leading-out ends of cooling water pipe 3 are respectively advancing of coolant, outlet, the outlet of cooling water pipe 3 links to each other with the import of the radiator 4 that is installed on car structure, the outlet of radiator 4 then is connected and installed in the import of the water pump 5 of car structure, and water pump 5 outlets link to each other with the import of cooling water pipe 2 again.
Be provided with some radiating ribs at the double outer wall of being the external rotor 2-4 of casing.End at external rotor 2-4 inner chamber is provided with the heat conduction fan 6 that is used for balanced motor cavity heat.
What radiator 4 adopted is aluminum plate fin type radiator.
The material of cooling water pipe is a stainless steel, and coolant adopts the aqueous solution of water or ethylene glycol.The coolant import and export of cooling water pipe 3 is via drawing in the hollow shaft, the power transmission line 2-3 that links to each other with stator winding 2-2 by the conduit cylinder-packing also via drawing in the hollow shaft.
The utility model independent hub traction device adopts the external rotor permanent magnet brshless DC motor as power, motor adopts full-enclosed structure, the casing of motor is as the part of external rotor, on the inwall of casing, there is the high energy product permanent magnetic material to piece the magnetic pole that forms together, outside casing employing heat conductivility preferred metal is made and is directly exposed to.
The stator core of motor is laminated by iron-core lamination and constitutes, there is corresponding circular hole in the yoke portion of iron-core lamination, iron-core lamination laminates in the whole iron core in back and forms through hole, at first the straight-tube portion with stainless steel cooling pipe inserts in the through hole, fill the heat-conducting glue compound in the gap of cooling water pipe and through hole, the two ends of each straight-tube portion of cooling water pipe make whole cooling water pipe form coil pipe by being welded to connect.
Claims (7)
1. independent hub traction device, be mainly used in urban low-floor rail vehicle, it includes hollow shaft (1) that is fixed in car structure and the external rotor permanent magnet brshless DC motor (2) that is arranged on the hollow shaft (1), the external rotor permanent magnet brshless DC motor has stator core (2-1), stator winding (2-2), power transmission line (2-3) that links to each other with stator winding (2-2) and the double external rotor (2-4) of doing casing, it is characterized in that: hollow shaft (1) is fixed in stator core (2-1), the yoke portion of stator core (2-1) has some through holes, there is the cooling water pipe (3) of loading cooling medium to be placed through through hole formation coil pipe back and forth, in the gap of cooling water pipe (3) and stator core (2-1) through hole, be filled with the heat-conducting glue compound, two leading-out ends of cooling water pipe (3) are respectively advancing of coolant, outlet, the outlet of cooling water pipe (3) links to each other with the import of the radiator that is installed on car structure (4), the outlet of radiator (4) then is connected and installed in the import of the water pump (5) of car structure, and water pump (5) outlet links to each other with the import of cooling water pipe (2) again.
2. independent hub traction device according to claim 1 is characterized in that: be provided with some radiating ribs at the described double outer wall of doing the external rotor (2-4) of casing.
3. independent hub traction device according to claim 1 is characterized in that: be provided with the heat conduction fan (6) that is used for balanced motor cavity heat at a described double end of doing external rotor (2-4) inner chamber of casing.
4. independent hub traction device according to claim 1 is characterized in that: described radiator (4) is an aluminum plate fin type radiator.
5. independent hub traction device according to claim 1 is characterized in that: the material of described cooling water pipe (3) is a stainless steel.
6. independent hub traction device according to claim 1 is characterized in that: the coolant import and export of described cooling water pipe (3) is via drawing in the hollow shaft.
7. independent hub traction device according to claim 1 is characterized in that: the described power transmission line (2-3) that links to each other with stator winding (2-2) by the conduit cylinder-packing via drawing in the hollow shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202741402U CN201594779U (en) | 2009-12-25 | 2009-12-25 | Independent wheel hub traction apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202741402U CN201594779U (en) | 2009-12-25 | 2009-12-25 | Independent wheel hub traction apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201594779U true CN201594779U (en) | 2010-09-29 |
Family
ID=42776843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202741402U Expired - Lifetime CN201594779U (en) | 2009-12-25 | 2009-12-25 | Independent wheel hub traction apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201594779U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130540A (en) * | 2011-03-11 | 2011-07-20 | 华小平 | Ventilating heat-radiation structure of direct-drive permanent-magnet wind-driven generator |
| CN101722958B (en) * | 2009-12-25 | 2011-07-20 | 新誉集团有限公司 | Independent hub traction device |
| CN103715822A (en) * | 2014-01-16 | 2014-04-09 | 常熟市沪虞港口机械有限公司 | Multifunctional tractor |
| CN109950995A (en) * | 2019-04-29 | 2019-06-28 | 洛阳优特威车业有限公司 | A kind of disc type hub motor |
| CN113497526A (en) * | 2020-04-08 | 2021-10-12 | 丰田自动车株式会社 | Cooling device for rotating electrical machine for vehicle |
-
2009
- 2009-12-25 CN CN2009202741402U patent/CN201594779U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722958B (en) * | 2009-12-25 | 2011-07-20 | 新誉集团有限公司 | Independent hub traction device |
| CN102130540A (en) * | 2011-03-11 | 2011-07-20 | 华小平 | Ventilating heat-radiation structure of direct-drive permanent-magnet wind-driven generator |
| CN103715822A (en) * | 2014-01-16 | 2014-04-09 | 常熟市沪虞港口机械有限公司 | Multifunctional tractor |
| CN109950995A (en) * | 2019-04-29 | 2019-06-28 | 洛阳优特威车业有限公司 | A kind of disc type hub motor |
| CN113497526A (en) * | 2020-04-08 | 2021-10-12 | 丰田自动车株式会社 | Cooling device for rotating electrical machine for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100929 Effective date of abandoning: 20091225 |