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Electronic vacuum booster device

An electronic vacuum booster, electric technology, applied in the direction of brake transmission, brake, transportation and packaging, etc., to achieve the effect of good sealing, simple structure and low cost

Inactive Publication Date: 2011-05-11
JILIN DONGGUANG AOWEI AUTOMOBILE BRAKE SYST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a gap between the rubber valves

Method used

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 1 As shown, the vacuum booster in the prior art includes a sealed housing, and the sealed housing is composed of a front housing 1, a rear housing 2 and an intermediate housing 3 whose outer edge is clamped between the front and rear housings 1 and 2. composition. A cylindrical and disc-shaped first booster disc 4 is arranged in the sealed case, and a second booster disc 5 is arranged at the end of the cylindrical part of the first booster disc 4, and a second booster disc 5 is installed behind the two booster discs 4 and 5 respectively. There are rubber diaphragms 6, 7, and the outer edges of the rubber diaphragms 6, 7 are sealed and fixed on the sealing shell, so that the inside of the entire sealing shell is divided into a first vacuum chamber 8, a first variable pressure chamber 9, and a second vacuum chamber. The vacuum ch...

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PUM

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Abstract

The invention relates to an electronic vacuum booster device. The device comprises a sealed shell, wherein two boosting disks, a rubber diaphragm, a valve body, a main cylinder push rod and a locking plate are arranged in the sealed shell; the valve body is extended forwards; a feedback disk seat on which a feedback disk is placed is arranged in a groove at the front end of the valve body; an electromagnetic valve part is arranged in the valve body; the electromagnetic valve part comprises an electric shell; an electromagnetic valve armature is arranged in the electric shell; an electromagnetic valve coil is arranged in the circumferential direction of a flange in the electric shell; a coil end cover is arranged at the front end of the electric shell; an armature end cover is arranged in a concave edge of the coil end cover; the armature end cover passes through the feedback disk seat to press against the back end of the feedback disk; the armature end cover and the electromagnetic valve armature are connected with an air valve seat of a control valve component through bolts; a mandril is arranged in the flange of the electric shell; an electric sleeve is arranged between the electric shell and the air valve seat; the front end of the electric sleeve is pressed against to the back end of the mandril; and a gap is reserved between the back end of the electric sleeve and a rubber valve in a non-working state. The electronic vacuum booster device can be widely applied in various driver assistance systems such as adaptive cruise, active crash avoidance and the like.

Description

technical field [0001] The invention relates to a booster device used in automobiles, in particular to an electronic vacuum booster device with auxiliary braking function. Background technique [0002] Vacuum booster is the brake servo device in the brake system of light, sedan and micro cars, and is a key component in the brake system of automobiles. Its working principle is to use the vacuum generated by the gasoline engine when it is working, or the vacuum generated by the vacuum pump installed on the diesel engine. The thrust generated by the pressure difference amplifies the brake pedal force according to the design ratio to push the brake master cylinder piston, compresses the brake fluid in the brake master cylinder to generate hydraulic pressure, and sends it to the wheel brake to make the brake shoes contact with the wheel hub or The brake pads are in contact with the wheel brake discs, thereby generating frictional resistance to control the deceleration or braking...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/52B60T13/72
Inventor 袁亮张玉海李克强王建强班浩张德兆张立国徐继福秦立峰宋巍邢玉伟柳恩芬王卫中
Owner JILIN DONGGUANG AOWEI AUTOMOBILE BRAKE SYST