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Electric oil pump assembly and vehicle with same

An electric oil pump and oil pump technology, which is applied to vehicle components, transportation and packaging, power steering mechanisms, etc., can solve the problems of high production cost, large installation space, and large installation space, and achieve short connection distance, compact structure, and low cost Effect

Active Publication Date: 2019-07-05
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 and vehicle with same
  • Electric oil pump assembly and vehicle with same
  • Electric oil pump assembly and vehicle with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0204] refer to Figure 1-Figure 7 , The electric oil pump assembly 1000 includes a casing 21 , an oil pump assembly 1 and a motor assembly 2 .

[0205] In the first embodiment, the casing 21 is used to accommodate the oil pump assembly 1 and the motor assembly 2. The casing 21 defines an oil-filled assembly compartment 200. When the assembly compartment 200 includes a motor compartment 200A and an oil pump compartment 200B, the motor compartment 200A It is not directly connected with the oil pump compartment 200B through an oil hole or an oil passage, the motor assembly 2 is located in the motor compartment 200A, and the oil pump assembly 1 is located in the oil pump compartment 200B.

[0206] Such as Figure 1-Figure 5 As shown, the oil pump assembly 1 includes an oil pumping mechanism 11, a pump housing assembly 12, a bearing seat 13 and a sealing ring 14, wherein the oil pumping mechanism 11 includes a rotating shaft part 111 and an oil pumping part 112, wherein the rotat...

Embodiment 2

[0225] Such as Figure 8-Figure 14 As shown, the structure of this embodiment is substantially the same as that of Embodiment 1, wherein the same components use the same reference numerals, the difference is that: the drive shaft 24 is connected to the oil pump mechanism 11 in a different way, and the oil discharge of the oil pump assembly 1 Port 102 is set differently.

[0226] refer to Figure 8-Figure 14 , the drive shaft 24 is connected to the shaft portion 111 (such as the drive shaft 111A) of the oil pump mechanism 11 through a coupling 27 . Wherein, the coupling 27 can be a compact coupling (that is, a compact coupling), such as a slider type compact coupling, a joint type compact coupling, a gear type compact coupling device etc.

[0227] refer to Figure 8-Figure 14 The oil discharge ports 102 are multiple and distributed on the rear pump cover 122B at intervals along the circumferential direction of the oil pump part 112, and penetrate the peripheral wall of the ...

Embodiment 3

[0229] Such as Figure 15-Figure 21 As shown, the structure of the present embodiment is substantially the same as that of the second embodiment, wherein the same components use the same reference numerals, and the difference is that the front support scheme of the oil pump mechanism 11 is different.

[0230] refer to Figure 15-Figure 21 , the front side of the oil pump part 112 does not have the front bearing seat 13A, and the front pump cover 122A is replaced by a double bearing pump cover 122M2. Thus, the front end of the driving shaft 111A and the front end of the driven shaft 111B can be supported by the double bearing pump cover 122M2, so that the volume of the oil pump assembly 1 can be further reduced and the cost can be reduced.

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Abstract

The invention discloses an electric oil pump assembly and a vehicle with the same. The electric oil pump assembly is provided with a total oil inlet and a total oil outlet, and comprises a motor assembly and an oil pump assembly; and the motor assembly comprises a driving shaft, the oil pump assembly is supported on an end cover of the motor assembly in a floating mode, and the driving shaft extends into the oil pump assembly, and drives the oil pump assembly to realize the oil pumping work from the total oil inlet to the total oil outlet. According to the electric oil pump assembly, the connection distance between the motor assembly and the oil pump assembly is short, and the electric pump assembly is small and compact in structure, low in weight and low in cost.

Description

technical field [0001] The invention relates to the field of vehicle equipment, in particular to an electric oil pump assembly and a vehicle with the same. 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 assembly process is complicated. There is room for improvement. Contents of the invention [0003] The present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/06B60R17/00
CPCB60R17/00B62D5/064
Inventor 杨胜麟王涛蔡柏聪
Owner BYD CO LTD
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