Direct-current power-driven vacuum pump used for automobile

Abstract

The invention relates to a direct-current power-driven vacuum pump used for an automobile, which comprises a pump body, a direct-current machine and the like, wherein the pump body comprises a pump body cover, a pump body wall and a lower housing; an inner chamber formed by walls of the pump body is internally provided with a radial clapboard so that a liquid storage chamber and a vacuum chamber are formed in the inner chamber. The liquid storage chamber is internally provided with an oil gas separating mesh which divides the liquid storage chamber into a left chamber and a right chamber; the left chamber is internally provided with an oil filling port and a silencer; and the right chamber is internally provided with a liquid level inductor. The liquid storage chamber and the vacuum chamber are connected by utilizing a passageway internally arranged in the walls of the pump body to serve as an oil-gas work channel. A power circuit of the direct-current machine is also connected with a controller. The product has the advantages of small oil line resistance, low noise, short vacuum-pumping time, compact and cleverish structure and liquid position displaying alarm and being in line with new concepts of car design. In addition, the controller always keeps vacuum pressure in a setting proper normal operation range, thus not only increasing safety performance of vehicles, but also being beneficial to energy conservation.

Description

【Technical field】 [0001] The invention relates to a DC electric vacuum pump for automobiles. 【Background technique】 [0002] At present, due to the rapid development of cars powered by electric power, hybrid power and other new energy sources, it is difficult to adapt to the existing brake vacuum booster that uses the engine as the vacuum source. The main reasons are: first, electric power is used as the power source Because the car itself does not need an engine, and the second is that the car with hybrid power as the power source has an engine, but when the engine is working in a gap, the brake vacuum booster connected to the engine manifold cannot obtain a vacuum source, resulting in existing Vacuum booster does not work. In order to solve this problem, the Chinese Patent No. 2007201816065 "A DC Electric Vacuum Pump for Automobiles" came into being and proposed an improvement. The car DC electric vacuum pump structure of this scheme includes a mounting bracket, a pump b...

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned vacuum pump has the following problems in actual use: the liquid storage tank is separated from the pump body, and is arranged on one side of the pump body, and the two are connected by a pipeline. Make the entire vacuum pump structure too bulky and heavy, which is not conducive to the new concept of car miniaturization design

Images