Oil-cooled electro-hydraulic pump for electric vehicle power steering system
A technology for power steering and electric vehicles, applied in the direction of fluid steering mechanism, etc., can solve the problems of dangerous electric energy consumption of automobiles, consumption of automobile power, large current loss, etc., and achieve the effect of compact structure, reliable performance and energy saving.
Pending Publication Date: 2019-06-21
FUXIN DARE AUTOMOTIVE PARTS
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Problems solved by technology
[0002] In the traditional automotive power steering system, 12V power supply is usually used to match the 12V electro-hydraulic pump. As people's demand for automotive functional components is getting higher and higher, many functional components are added to the car, such as air conditioning, engine start and stop Technical devices, lamps, etc. will consume a lot of power of the car. Because the voltage of 12V has not changed, the current at a certain power will be very large. If the current is too large, the heat will be large, and the current loss will be large. Can be dangerous and cause a lot of power consumption
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[0010] Examples, see attached figure 1 , 2 , the oil-cooled electro-hydraulic pump for the power steering system of an electric vehicle is provided with an oil filling port 1-1 on the top of the oil tank upper cover 1, and the oil tank upper cover 1 is fixed with the motor housing 3-2 of the motor assembly 3 by bolts Connection, the connection between oil tank cover 1 and motor housing 3-2 is sealed with an O-ring to form a chamber A. The pressure plate 7 is fixed on the upper end surface of the motor housing 3-2 with bolts, and the pressure plate 7 and the upper end surface of the motor housing 3-2 are sealed with an O-ring. An oil pump assembly 10 is installed on the top of the motor housing 3-2. The upper end of the oil pump body 10-4 of the oil pump assembly 10 is used to fix the oil pump back cover 10-2 with bolts through a special sealing ring 10-3. A spring washer 8 is arranged between the cover 10 - 2 and the pressure plate 7 , and the spring washer 8 makes the press...
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The invention belongs to parts for automobiles, in particular to an oil-cooled electro-hydraulic pump for an electric vehicle power steering system. An oil tank upper cover is fixedly connected with amotor shell by bolts, the joint of the oil tank upper cover and the motor shell is sealed by an O-shaped seal ring to form a cavity I, a spring shim is arranged between an oil pump rear cover and a pressure plate, a cavity II is formed by an oil pump assembly and the interior of the upper part of the motor shell, a rotor assembly is arranged on a motor rotor shaft, a stator assembly is arranged at the periphery of the rotor assembly and in the motor shell of a motor assembly, a motor cover is fixedly connected below the motor shell by sealing with the O-shaped seal ring, a controller cover isfixedly connected below the motor cover by sealing with the O-shaped seal ring, a controller is loaded in the controller cover, a hole communicated with the outside is formed in the bottom of the controller cover, and a ventilated felt is arranged in the hole. According to the oil-cooled electro-hydraulic pump for the electric vehicle power steering system, the heating of the motor and the controller is effectively reduced, the noise during working of the oil pump is reduced, the whole structure of the electro-hydraulic pump is compact and small in size, the installation is convenient, the performance is reliable, and energy is saved.
Description
technical field [0001] The invention belongs to parts for automobiles, in particular to an oil-cooled electro-hydraulic pump for the power steering system of an electric vehicle. Background technique [0002] In the traditional automotive power steering system, 12V power supply is usually used to match the 12V electro-hydraulic pump. As people's demand for automotive functional components is getting higher and higher, many functional components are added to the car, such as air conditioning, engine start and stop Technical devices, lamps, etc. will consume a lot of power of the car. Because the voltage of 12V has not changed, the current at a certain power will be very large. If the current is too large, the heat will be large, and the current loss will be large. Can be dangerous and cause a lot of power consumption. Contents of the invention [0003] The object of the present invention is to overcome the above technical deficiencies and provide an oil-cooled electro-hydr...
Claims
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IPC IPC(8): B62D5/06
Inventor 杨红林于大洪韩颖谢英刘琦宋鹏张磊
Owner FUXIN DARE AUTOMOTIVE PARTS