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Electromagnetic valve for automobile braking system

A solenoid valve and magnetic permeability technology, applied in valve details, valve devices, engine components, etc., can solve the problems of HCU assembly failure and inability to replace it alone, reducing cost and assembly process difficulty, novel structure, and improving yield. Effect

Inactive Publication Date: 2013-11-20
JILIN DONGGUANG AOWEI AUTOMOBILE BRAKE SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a solenoid valve for an automobile braking system to solve the problem that the solenoid coil assembly needs to be fixed separately, and if one of the solenoid valves fails during assembly or use, it cannot be replaced separately, resulting in the failure of the entire HCU assembly

Method used

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  • Electromagnetic valve for automobile braking system
  • Electromagnetic valve for automobile braking system
  • Electromagnetic valve for automobile braking system

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Embodiment Construction

[0012] The gland 1 is fixedly connected to the main valve seat 10 through four uniformly distributed screws 4. There is a sealing gasket 5 between the gland 1 and the main valve seat 10. The gland 1, the magnetically conductive shell 16, the coil support 14, the platform The shoulder 18 and the main valve seat 10 are axially pressed sequentially. There is an axial gap S1 between the top of the solenoid valve body 17 and the gland 1, and there is an axial gap S2 between the upper surface of the magnetic washer 12 and the bottom of the coil support 14. There is a gap S3 between the bottom of the housing 16 and the upper surface 10 of the main valve seat. There is an inward flange 21 at the center hole of the magnetically conductive housing 16 . To the gap fit, the inner ring of the lower part of the magnetic shell 16 is matched with the radial clearance of the outer ring of the magnetic washer 12, the inner ring of the magnetic washer 12 is matched with the outer ring of the shou...

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Abstract

The invention relates to an electromagnetic valve for an automobile braking system, and belongs to the industry of automobiles. A pressing cover is fixedly connected with a main valve seat through four evenly distributed screws, a sealing gasket is arranged between the pressing cover and the main valve seat, the pressing cover, a magnetism-conductive shell body, a coil supporting frame, a table shoulder and the main valve seat are axially compressed in sequence, an inward flanging is arranged at the central hole of the magnetism-conductive shell body, an upper portion inner ring of the magnetism-conductive shell body is in clearance fit with an upper portion outer ring of the magnetism-conductive shell body in the radial direction, a lower portion inner ring of the magnetism-conductive shell body is in clearance fit with an outer ring of a magnetism-conductive gasket in the radial direction, an inner ring of the magnetism-conductive gasket is in clearance fit with an outer ring of the table shoulder, and a large annular groove and a small annular groove are formed in a valve body of the electromagnetic valve. The electromagnetic valve for the automobile braking system has the advantages that the structure is novel, an electromagnetic coil component does not need to be fixed independently, and the cost and assembly process difficulty are obviously lowered while high-pressure sealing performance and magnetism-conductive performance of an electromagnetic circuit are guaranteed. Besides, when a single electromagnetic valve fails to work, the damaged electromagnetic valve can be replaced independently, the failure of an entire HCU assembly is avoided, and the yield of the entire HCU assembly is obviously improved.

Description

technical field [0001] The invention belongs to the automobile industry, in particular to a hydraulic control unit assembly applied to an automobile braking electronic stability system. Background technique [0002] Solenoid valve is a key component of automotive brake electronic stability system. A hydraulic control unit assembly of a vehicle braking electronic stability system is equipped with multiple solenoid valves. Through the control of the relevant solenoid valves, the adjustment of the brake hydraulic pressure of different wheel cylinders is realized to ensure the safety and comfort of the brakes of the car. In the HCU assembly of the current automotive braking electronic stability system, the solenoid valve is directly riveted with the main valve seat of the HCU assembly by interference riveting, which is used to resist the internal high pressure and cannot be disassembled. The disadvantage is that the electromagnetic coil assembly needs to be fixed separately, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06
Inventor 李文惠张玉海陈思琦孙红旭曹明明柳恩芬班浩宋巍张殿东邢玉伟张世强王卫中王波戴鸿雁孙震刘洋
Owner JILIN DONGGUANG AOWEI AUTOMOBILE BRAKE SYST
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