An oil-immersed high-speed motor for electric vehicles
A high-speed motor, oil-immersed technology, applied in electric components, electromechanical devices, electrical components, etc., can solve problems such as wheel hub rise, inability to overcome oil spills, gear oil spills, etc., and achieve the effect of improving reliability
Active Publication Date: 2016-03-09
NINGBO XINGLONG JUCHUANG ELECTRICAL TECH CO LTD
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Problems solved by technology
When the oil-immersed high-speed motor is running, the pressure in the hub will rise after the temperature in the hub rises, making the gear oil easy to overflow under the action of pressure
In order to solve this problem, the above-mentioned technical scheme is provided with an air pressure regulating hole on the fixed shaft, but the lubricating oil on the reduction gear will flow into the regulating hole, and oil overflow will still occur under the action of pressure, although the above-mentioned scheme is in Add fiber filler to the adjustment hole, but still can't overcome the phenomenon of oil spill
Method used
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[0024] see figure 1 and figure 2 , an embodiment of an oil-immersed high-speed motor for an electric vehicle provided in the present invention includes a hub 1, a central shaft 2 arranged on the hub 1, a motor body 3 installed in the hub 1 and a speed reducer Mechanism 4, the hub 1 is provided with a lubricating oil chamber, the motor body 3 and the part of the reduction mechanism 4 are located in the lubricating oil chamber, the motor body 3 in the above structure will rotate after being energized, and through deceleration The mechanism 4 is connected with the wheel hub 1 and drives the wheel hub 1 to rotate. This structure can adopt relatively mature existing technology. The specific composition and working principle will not be repeated here. An internal circulation pressure discharge passage 5 is arranged in the hub 1 , and the discharge passage 5 communicates with the outside through at least one support bearing 21 provided on the central shaft 2 . The main inventive ...
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An oil-immersed high-speed motor for an electric vehicle comprises a hub, a central shaft, a motor body and a speed reducing mechanism. The central shaft is arranged on the hub, the motor body and the speed reducing mechanism are mounted in the hub, a lubricating oil cavity is arranged in the hub, parts of the motor body and the speed reducing mechanism are in the lubricating oil cavity, and an inner circulating pressure discharging channel is arranged in the hub and communicated with the outside prior to passing through at least one support bearing arranged on the central shaft. The discharging channel is communicated with the outside prior to passing through the support bearings which rotate at a high speed in working, so that lubricating oil can be effectively prevented from passing through, oil leakage during pressure adjustment is avoided, and reliability is effectively improved.
Description
technical field [0001] The invention relates to an oil-immersed high-speed motor for an electric vehicle. Background technique [0002] Motors for electric vehicles in the prior art, such as Chinese Patent No. CN200920039385.7, the disclosure date is February 10, 2010, which discloses a motor for electric vehicles, including a hub and a DC motor installed in the hub and a set The planetary reduction device in the hub. The planetary reduction device includes a sun gear, a planetary gear and an inner ring gear. There is a ratchet type clutch structure between the ring gear of the above-mentioned planetary reduction gear and the hub that relatively performs circular motion. An output shaft is pierced through the two end covers respectively, and the left output shaft is located at the left end of the central pinion shaft, and an air pressure regulating hole is arranged in the central axis of the left output shaft, and the air pressure regulating hole is filled with fiber filler...
Claims
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IPC IPC(8): B60K7/00B60B27/00H02K7/10
Inventor 王海波
Owner NINGBO XINGLONG JUCHUANG ELECTRICAL TECH CO LTD