CN209943965U - Electro-hydraulic pump for auxiliary lubrication of hybrid vehicle gearbox - Google Patents

Abstract

The utility model belongs to auto parts, in particular to an electro-hydraulic pump for auxiliary lubrication of a hybrid vehicle gearbox. The oil pump body is sealed and fixed on the upper end face of the motor housing, the inner rotor of the oil pump is installed on the shaft of the oil pump body, the outer rotor of the oil pump is arranged outside the inner rotor of the oil pump, and the inner boss at the upper end of the motor housing and the inner part of the motor cover A common shaft is installed in the center hole of the boss through the first ball bearing and the second ball bearing. The motor rotor is installed on the shaft in the motor housing, and the motor stator is installed outside the motor rotor and inside the motor housing, and is inserted into the lower end of the shaft. The shaft head magnet bracket is installed, the shaft head magnet is arranged in the shaft head magnet bracket, the wiring bridge is arranged on the lower end face of the motor stator, the controller is installed on the lower end of the motor cover, and the controller gland is sealed on the lower end face of the motor cover. . The oil pump, motor and control part are integrated together, so that the electro-hydraulic pump has a compact structure, takes up less space, facilitates the layout of the vehicle, has high work efficiency, reduces the consumption of raw materials, and saves production costs.

Description

Electro-hydraulic pump for auxiliary lubrication of hybrid vehicle gearbox

technical field

The utility model belongs to auto parts, in particular to an electro-hydraulic pump for auxiliary lubrication of a hybrid vehicle gearbox.

Background technique

At present, with the necessary situation of energy saving and emission reduction, the energy of automobiles is gradually changing, and various types of hybrid vehicles emerge as the times require. In the past, most of the electro-hydraulic pumps used for auxiliary lubrication of automobile gearboxes were split, which was inconvenient to process and install, and took up a lot of space and had low work efficiency.

SUMMARY OF THE INVENTION

The purpose of the utility model is to overcome the above-mentioned technical deficiencies, and to provide an electro-hydraulic pump for auxiliary lubrication of a hybrid vehicle gearbox with a compact structure, which is convenient for the overall arrangement of the vehicle and has high working efficiency.

The technical scheme adopted by the utility model to solve the technical problem is: the electro-hydraulic pump for auxiliary lubrication of the hybrid vehicle gearbox comprises an oil pump body, a motor housing, a motor cover, a controller rear cover, and a connector wiring harness assembly, which is characterized by: The oil pump body is sealed and fixed on the upper end face of the motor casing, the oil pump inner rotor is installed on the shaft of the oil pump body, the oil pump outer rotor is arranged outside the oil pump inner rotor, and the motor cover is sealed on the lower end face of the motor casing. The inner boss at the upper end of the motor casing and the central hole of the inner boss of the motor cover are equipped with a shared shaft through ball bearing 1 and ball bearing 2, and the motor rotor is installed on the shaft in the motor casing. The motor stator is installed in the casing, the shaft head magnet bracket is inserted on the lower end of the shaft, the shaft head magnet is arranged in the shaft head magnet bracket, the wiring bridge is arranged on the lower end face of the motor stator, and the lower end of the motor cover is equipped with Controller, the lower end face of the motor cover is sealed with the back cover of the controller.

The beneficial effects of the utility model are as follows: the oil pump, the motor and the control part of the electro-hydraulic pump for auxiliary lubrication of the hybrid vehicle gearbox are integrated together, so that the electro-hydraulic pump has a compact structure, occupies a small space, and is convenient for the whole vehicle layout and work. High efficiency, reduce the consumption of raw materials and save production costs.

Description of drawings

Embodiments are described in detail below with reference to the accompanying drawings.

Figure 1 is a structural outline diagram of an electro-hydraulic pump for auxiliary lubrication of a hybrid vehicle gearbox.

FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1 .

In the figure, 1- controller rear cover; 2- motor cover; 3- one-way valve; 3-1- oil outlet; 4- connector wiring harness assembly; 5- motor housing; 6- oil pump body; 6 -1- oil inlet; 7- controller; 8- oil pump outer rotor; 9- oil pump inner rotor; 10- oil seal; 11- ball bearing one; 12- motor stator; 13- motor rotor; 14- shaft; 15- Ball bearing two; 16-connection bridge; 17-shaft magnet bracket; 18-shaft magnet.

Detailed ways

Embodiments, referring to Figures 1 and 2, the electro-hydraulic pump for auxiliary lubrication of a hybrid vehicle gearbox is sealed and fixed with an oil pump body 6 on the upper end face of the motor housing 5, and a check valve is provided on the upper end of the oil pump body 6. 3. An oil inlet 6-1 and an oil outlet 3-1 are arranged at the top of the oil pump body 6, and the oil outlet 3-1 is arranged in the check valve 3. The oil pump inner rotor 9 is mounted on the shaft 14 in the oil pump body 6 , and the oil pump outer rotor 8 is arranged outside the oil pump inner rotor 9 . The motor cover 2 is sealed on the lower end face of the motor housing 5, and the inner boss at the upper end of the motor housing 5 and the central hole of the inner boss of the motor cover 2 are mounted through ball bearing one 11 and ball bearing two 15. The shaft 14 shared by the motor and the oil pump is provided with an oil seal 10 on the shaft 14 above the ball bearing 11. The shaft 14 in the motor housing 5 is fitted with a motor rotor 13 in an interference fit, and a motor stator 12 is fitted in the motor housing 5 on the periphery of the motor rotor 13 by a tight fit. A shaft magnet bracket 17 is inserted into the lower end of the shaft 14 , and a shaft magnet 18 is provided in the shaft magnet bracket 17 . A wiring bridge 16 is provided on the lower end face of the motor stator 12 , a controller 7 is fixedly mounted on the lower end of the motor cover 2 , a controller rear cover 1 is sealed on the lower end face of the motor cover 2 , and a protruding portion of the motor cover 2 is fixedly mounted on the back cover 1 . There is a connector harness assembly 4.

The working principle of the electro-hydraulic pump for auxiliary lubrication of a hybrid vehicle gearbox is as follows: the controller 7 senses the position of the motor rotor 13 through the magnetic field generated by the shaft head magnet 18 to control the number of motor revolutions. The shaft 14 drives the inner rotor 9 of the oil pump to rotate, and the inner rotor 9 of the oil pump drives the outer rotor 8 of the oil pump to rotate, so as to realize the volume change of the oil pump, and realize the process of the oil pump sucking oil from the oil inlet 6-1 and discharging oil from the oil pump outlet 3-1. The oil outlet 3-1 is arranged in the one-way valve 3 and arranged on the oil pump body 6 to ensure that the output oil of the electro-hydraulic pump can be smoothly transported to the automobile gearbox, and at the same time prevent the external oil from entering the oil pump.

Claims (1)

1. An electro-hydraulic pump for auxiliary lubrication of a hybrid vehicle gearbox, comprising an oil pump body (6), a motor housing (5), a motor cover (2), a controller rear cover (1), and a connector wiring harness assembly (4), which is characterized in that the oil pump body (6) is sealed and fixed on the upper end face of the motor housing (5), and the oil pump inner rotor (9) is installed on the shaft (14) in the oil pump body (6). The oil pump outer rotor (8) is arranged outside the oil pump inner rotor (9), and the motor cover (2) is sealed on the lower end face of the motor housing (5). A shared shaft (14) is installed in the center hole of the inner boss of the cover (2) through the first ball bearing (11) and the second ball bearing (15), and is installed on the shaft (14) in the motor housing (5). The motor rotor (13), the motor stator (12) is installed outside the motor rotor (13) and the motor housing (5), the shaft head magnet bracket (17) is inserted on the lower end of the shaft (14), and the shaft head magnet bracket (17) is inserted into the shaft head. A shaft head magnet (18) is arranged in the magnet bracket (17), a connection bridge (16) is arranged on the lower end face of the motor stator (12), a controller (7) is arranged on the lower end of the motor cover (2), and the motor cover ( 2) The lower end face is sealed with the back cover of the controller (1).

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