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Electric oil pump assembly, steering system and lubrication system

An electric oil pump and assembly technology, which is applied in the field of lubrication systems, can solve the problems of high motor noise, complex damping element structure, and large volume of electric oil pumps, so as to improve work energy efficiency, heat dissipation performance and work stability. The effect of a high level of lightweight

Active Publication Date: 2020-12-25
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Electric oil pumps are widely used in the steering system and lubrication system of vehicles. In related technologies, the oil pump and the motor of the electric oil pump are separated, and the connection relationship is only the dynamic coupling connection between the oil pump shaft and the motor shaft, which makes the electric oil pump larger. , takes up a lot of installation space
In addition, the operating noise of the motor and the oil pump are relatively loud. In related technologies, various damping elements are often used to isolate the noise. The structure of the damping element is complex, occupying a large installation space, and the production cost is high and the assembly process is complicated. room for improvement

Method used

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  • Electric oil pump assembly, steering system and lubrication system
  • Electric oil pump assembly, steering system and lubrication system
  • Electric oil pump assembly, steering system and lubrication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Such as figure 1 , Figure 4 , Figure 5 , Figure 10 , Figure 13 , Figure 14 , Figure 19 , Figure 21 , Figure 22 , Figure 24 , Figure 26 , Figure 27 , Figure 29 , Figure 31 , Figure 32 , Figure 34 , Figure 36 , Figure 37 , Figure 39 As shown, an electric oil pump assembly 1000 according to an embodiment of the present invention includes: a motor assembly 200 and an oil pump assembly 100 .

[0057] Wherein, the oil pump assembly 100 is dynamically coupled with the motor shaft 250, and the motor assembly 200 is used to provide the driving force for the operation of the oil pump assembly 100. For example, the motor shaft 250 of the motor assembly 200 can be connected with the oil pump shaft 130 of the oil pump assembly 100 through a coupling 410. Of course, the motor assembly 200 is not limited to directly driving the oil pump assembly 100 , and can also be connected to the oil pump assembly 100 through a transmission mechanism such as a g...

Embodiment 2

[0079] Such as figure 2 , Figure 6 , Figure 7 , Figure 11 , Figure 15 , Figure 16 , Figure 20 , Figure 23 , Figure 25 , Figure 28 , Figure 30 , Figure 33 , Figure 35 , Figure 38 , Figure 40 As shown, an electric oil pump assembly 1000 according to an embodiment of the present invention includes: a motor assembly 200 and an oil pump assembly 100 .

[0080] Wherein, the oil pump assembly 100 is dynamically coupled with the motor shaft 250, and the motor assembly 200 is used to provide the driving force for the operation of the oil pump assembly 100. For example, the motor shaft 250 of the motor assembly 200 can be connected with the oil pump shaft 130 of the oil pump assembly 100 through a coupling 410. Of course, the motor assembly 200 is not limited to directly driving the oil pump assembly 100 , and can also be connected to the oil pump assembly 100 through a transmission mechanism such as a gearbox or a reducer.

[0081] The oil pump assembly 100...

Embodiment 3

[0100] Such as image 3 , Figure 8 , Figure 9 , Figure 12 , Figure 17 , Figure 18 As shown, an electric oil pump assembly 1000 according to an embodiment of the present invention includes: a motor assembly 200 and an oil pump assembly 100 .

[0101] Wherein, the oil pump assembly 100 is dynamically coupled with the motor shaft 250, and the motor assembly 200 is used to provide the driving force for the operation of the oil pump assembly 100. For example, the motor shaft 250 of the motor assembly 200 can be connected with the oil pump shaft 130 of the oil pump assembly 100 through a coupling 410. Of course, the motor assembly 200 is not limited to directly driving the oil pump assembly 100 , and can also be connected to the oil pump assembly 100 through a transmission mechanism such as a gearbox or a reducer.

[0102] The oil pump assembly 100 works under the drive of the motor assembly 200 to convert the low-pressure oil into high-pressure oil output. The oil pump as...

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Abstract

The invention discloses an electric oil pump assembly, a steering system and a lubricating system. The electric oil pump assembly is provided with a main oil inlet and a main oil outlet, and comprisesa motor assembly, an oil pump assembly and a magnetic part, wherein a motor shaft oil passage communicating with the main oil inlet is arranged in a motor shaft of the motor assembly; the oil pump assembly is in power coupling connection with the motor shaft of the motor assembly, an oil suction port of the oil pump assembly communicates with the motor shaft oil passage, and an oil discharge portof the oil pump assembly communicates with the main oil outlet; and the magnetic part is used for applying axial magnetic force on the oil pump assembly, so that the oil pump assembly is made to be supported at the end of the motor assembly in a floating mode in the radial direction. According to the electric oil pump assembly, the working friction force of the oil pump assembly is small, the working energy efficiency of the oil pump assembly is high, an output pulse of the oil pump assembly is low, the heat dissipation performance and the working stability of the electric oil pump assembly are improved, the integration degree is high, the light weight level is high and demand on the machining precision and assembly precision of the electric oil pump assembly can be reduced.

Description

technical field [0001] The invention belongs to the technical field of vehicle manufacturing, and in particular relates to an electric oil pump assembly, a steering system with the electric oil pump assembly and a lubricating system with the electric oil pump assembly. Background technique [0002] Electric oil pumps are widely used in the steering system and lubrication system of vehicles. In related technologies, the oil pump and the motor of the electric oil pump are separated, and the connection relationship is only the dynamic coupling connection between the oil pump shaft and the motor shaft, which makes the electric oil pump larger. , takes up a lot of installation space. In addition, the operating noise of the motor and the oil pump are relatively loud. In related technologies, various damping elements are often used to isolate the noise. The structure of the damping element is complex, occupying a large installation space, and the production cost is high and the ass...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B17/03F04B53/00F04B53/22F04B53/16H02K9/197B62D5/06B60R17/00F16N13/00
CPCB60R17/00B62D5/064F04B17/03F04B53/00F04B53/002F04B53/16F04B53/22F16N13/00H02K9/197
Inventor 杨胜麟刘彦
Owner BYD CO LTD