Motor oil pump assembly, steering system and vehicle
An oil pump and assembly technology, applied in the field of vehicle manufacturing, can solve the problems of high production cost, large vibration and noise, large installation space, etc., and achieve the effects of light weight, low working noise and low manufacturing cost
Active Publication Date: 2019-06-25
BYD CO LTD
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Problems solved by technology
Furthermore, the vibration noise generated by the oil pump assembly during the working process is relatively large. In related technologies, various damping elements are often used to isolate the noise. The structure of the damping element is complicated, takes up a large installation space, and the production cost is high. Complicated, room for improvement
Method used
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[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0037] In the present invention, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0038] The present inven...
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Disclosed is an electric motor oil pump assembly. The electric motor oil pump assembly comprises: an electric motor assembly (200); an oil pump assembly (100), the oil pump assembly (100) being supported on an end cover (210) of the motor assembly (200); an inner soundproof cover (400), the inner soundproof cover (400) being sheathed outside the oil pump assembly (100), and defining an inner layer soundproof cavity (401) filled with low pressure oil with the oil pump assembly (100), the inner layer soundproof cavity (401) being in communication with a low-pressure cavity (101) of the oil pump assembly (100); an outer soundproof cover (500), the outer soundproof cover (500) being sheathed outside the inner soundproof cover (400), with a sound absorbing layer (510) being filled between the outer soundproof cover (500) and the inner soundproof cover (400); and a pre-tightening buffer assembly (300), the pre-tightening buffer assembly (300) being clamped between an upper end cover (110) of the oil pump assembly (100) and the inner soundproof cover (400), and the pre-tightening buffer assembly (300) being in communication with a high pressure cavity (102) of the oil pump assembly (100). By filling the low pressure oil between the inner soundproof cover (400) and the oil pump assembly (100), the electric motor oil pump assembly is light in weight, occupies little space, and has low manufacturing costs and small working noise. Further disclosed is a steering system comprising the electric motor oil pump assembly and a vehicle comprising the steering system.
Description
technical field [0001] The invention belongs to the technical field of vehicle manufacturing, and in particular relates to a motor oil pump assembly, a steering system with the motor oil pump assembly and a vehicle with the steering system. Background technique [0002] The motor oil pump assembly is widely used in the steering system of the vehicle. In the related art, the oil pump assembly is immersed in high-pressure oil, and the outside of the oil pump assembly is a high-pressure chamber, which makes it necessary to design a high-strength housing to seal the high-pressure chamber. The casting process and the sealing performance of the high-pressure chamber are very demanding, and the thickness of the shell is relatively large, which does not meet the requirements of light weight. Furthermore, the vibration noise generated by the oil pump assembly during the working process is relatively large. In related technologies, various damping elements are often used to isolate th...
Claims
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IPC IPC(8): F04B17/03F04B53/00B62D5/06
CPCB62D5/06F04B17/03F04B53/00F04D13/08F04D29/40
Inventor 杨胜麟李军
Owner BYD CO LTD