CN202279105U - Novel vacuum booster with feedback disc type structure and variable boosting ratio - Google Patents
Novel vacuum booster with feedback disc type structure and variable boosting ratio Download PDFInfo
- Publication number
- CN202279105U CN202279105U CN2011204198418U CN201120419841U CN202279105U CN 202279105 U CN202279105 U CN 202279105U CN 2011204198418 U CN2011204198418 U CN 2011204198418U CN 201120419841 U CN201120419841 U CN 201120419841U CN 202279105 U CN202279105 U CN 202279105U
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- valve body
- vacuum booster
- diaphragm
- novel vacuum
- connection
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Abstract
The utility model relates to a novel vacuum booster with a feedback disc type structure and a variable boosting ratio, and belongs to the technical field of car braking. The novel vacuum booster is characterized in that a front shell is riveted with a rear shell; a diaphragm is clamped and fixed at the riveted position of the front shell and the rear shell; a sealing ring is riveted with the rear shell; a feedback disc, the diaphragm and a valve body are in interference fit; the sealing ring is in sliding connection with the valve body; a boosting disc is in interference fit with the valve body and the diaphragm; a return spring is in contacted connection with the valve body; a dustproof cover is fixedly connected with the valve body; a locking piece is in pressing connection with the sealing ring; a control valve part is in contact connection with a pressing block; a gap pad is fixedly connected with the feedback disc; the pressing block is in contacted connection with the gap pad; and a main cylinder pushing rod is in contacted connection with the feedback disc. The novel vacuum booster has the advantages of being novel in structure and applicable to the requirement of different car types for the boosting characteristic, having shorter brake reaction time, improving the braking efficiency by matching with an ABS (Anti-skid Brake System), a TCS (Traction Control System) and an ESP (Electronic Stability System), and adopting a modular standard design. The novel vacuum booster can be applied in various types of boosters and simultaneously has good performance-cost ratio.
Description
Technical field
The utility model belongs to the automobile brake technical field, refers in particular to automobile vacuum booster.
Background technology
Vacuum booster is the brake power assist unit in light, the car brake system, is the critical component in the brake system of car.Its principle of work is the vacuum that is produced when utilizing engine petrol work; Or the vacuum that vacuum pump produced that diesel motor installed additional; When chaufeur steps on brake pedal; Borrow the different thrust that difference of pressure produced of two epitrochoidal chambers in the vacuum booster; Amplify brake pedal force by design proportion and promote brake master cylinder piston, the braking liquid in the compression brake master cylinder produces hydraulic pressure, and is delivered to the wheel drg and makes brake shoe brake cheek contact and then produce the deceleration of friction drag control vehicle with wheel nave or brake.
Summary of the invention
The utility model provides a kind of novel feedback tray type structure to become the vacuum booster of power-assisted ratio, uses different servo-units to solve different automobile types, and brake response time has problem to be shortened.
The technical scheme of the utility model is: the riveted joint of front case and rear housing, diaphragm in front and back housing riveted joint place clamped fixing, seal ring is riveted with rear housing; Reaction plate, diaphragm and valve body interference fit, seal ring and valve body sliding block joint, power-assisted dish and valve body, diaphragm interference fit; Return spring is connected with the valve body contact, and dust boot is captiveed joint with valve body, locking plate and seal ring crimping; The control cock parts are connected with the briquetting contact; The gap pad is captiveed joint with reaction plate, and briquetting is connected with the contact of gap pad, and master cylinder push rod is connected with the reaction plate contact.
The advantage of the utility model is: novel structure; Further optimize the assist characteristic of servo-unit, be suitable for the requirement of different automobile types, faster brake response time assist characteristic; Can with ABS, TCS and the ESP raising brake efficiency that is complementary; The modularization production-release design can be applicable to all kinds servo-unit, has the good ratio of performance to price simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the partial enlarged drawing of the utility model gap pad.
The specific embodiment
Front case 1 and rear housing 5 riveted joints, diaphragm 4 in front and back housing riveted joint place clamped fixing, seal ring 6 and rear housing 5 riveted joints; Reaction plate 12, diaphragm 4 and valve body 8 interference fit, seal ring 6 and valve body 8 sliding block joints, power-assisted dish 3 and valve body 8, diaphragm 4 interference fit; Return spring 2 is connected with valve body 8 contacts, and dust boot 7 is captiveed joint with valve body 8, locking plate 14 and seal ring 6 crimping; Control cock parts 11 are connected with briquetting 9 contacts; Gap pad 13 is captiveed joint with reaction plate 12, and briquetting 9 is connected with 13 contacts of gap pad, and master cylinder push rod 10 is connected with reaction plate 12 contacts.
The stretcher input force promotes the reaches such as valve rod, air valve seat and rubber valve parts of control cock parts during automobile brake, and the rubber valve parts contact and seal with valve body and close valve vacuum valve port, and the chamber, front and back of vacuum booster is separated; The air valve seat continues reach and opens the atmosphere valve port with the rubber valve isolation of components, and air begins to get into true servo-unit back cavity and produces servo force, and servo force acts on the reaction plate through diaphragm, power-assisted dish, valve body.In briquetting, briquetting produces follow-up action with input force in reaction plate to the air valve seat with input force simultaneously, and power output passes to master brake cylinder through reaction plate, master cylinder push rod, sets up to annotate and presses and the realization braking function.
The utility model feedback disc type becomes power-assisted and realizes the no-load voltage ratio function than vacuum booster through valve body, reaction plate, briquetting.
No-load voltage ratio arrangement works time-division two rank are disconnected:
1, no-load voltage ratio function prestart: auto pedal power is delivered to the air valve seat through valve rod, and air valve seat application force is delivered to briquetting again, and briquetting and reaction plate effect produce retroactive effect.Simultaneously along with the servo-unit back cavity gets into atmosphere; The chamber produces pressure reduction and generates servo force before and after the servo-unit; Servo force acts on the reaction plate through diaphragm, power-assisted dish, valve body, and the cause air valve port is under the servo-actuated state of open and close all the time, and the servo-unit back cavity is steadily built pressure.Because power-assisted is than the ratio for power output and input force, input force is a treadle effort, power output be treadle effort and servo force act on power on the reaction plate with joint efforts.The power output that servo force acts on bigger its generation of area on the reaction plate is big more.This moment is because valve body causes servo force input area little in the existence of the circular groove of reaction plate contact surface, so power-assisted is than little.
2, after the no-load voltage ratio function works: after the treadle effort increase reaches a certain size, briquetting reach this moment and reaction plate effect generation retroactive effect, the air valve port is under the servo-actuated state of open and close all the time, and the servo-unit back cavity is steadily built pressure.Chamber pressure reduction continues to increase before and after the servo-unit; Servo force constantly increases, and reaction plate is in the circular groove of input force complete filling valve body under the squeezing action of power output, and the area that causes servo force to act on the reaction plate increases; Thereby increased power output, so power-assisted is than becoming big.
The utility model feedback disc type becomes power-assisted and realizes the no-load voltage ratio function than vacuum booster through the no-load voltage ratio structure, confirms a certain size no-load voltage ratio point input force through the adjustment valve body circular groove degree of depth; Confirm a certain size first power-assisted ratio and second power-assisted ratio through the active area of change valve body and helical cast feedback.
Claims (1)
1. a novel feedback tray type structure becomes the vacuum booster of power-assisted ratio, it is characterized in that: housing riveted joint place is clamped in front and back fixes for front case and rear housing riveted joint, diaphragm; Seal ring and rear housing riveted joint, reaction plate, diaphragm and valve body interference fit, seal ring and valve body sliding block joint; Power-assisted dish and valve body, diaphragm interference fit, return spring is connected with the valve body contact, and dust boot is captiveed joint with valve body; Locking plate and seal ring crimping, the control cock parts are connected with the briquetting contact, and the gap pad is captiveed joint with reaction plate; Briquetting is connected with the contact of gap pad, and master cylinder push rod is connected with the reaction plate contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204198418U CN202279105U (en) | 2011-10-30 | 2011-10-30 | Novel vacuum booster with feedback disc type structure and variable boosting ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204198418U CN202279105U (en) | 2011-10-30 | 2011-10-30 | Novel vacuum booster with feedback disc type structure and variable boosting ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202279105U true CN202279105U (en) | 2012-06-20 |
Family
ID=46225282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204198418U Expired - Lifetime CN202279105U (en) | 2011-10-30 | 2011-10-30 | Novel vacuum booster with feedback disc type structure and variable boosting ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202279105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107826094A (en) * | 2017-12-09 | 2018-03-23 | 吉林东光奥威汽车制动系统有限公司 | A kind of vacuum booster of double diaphragms |
-
2011
- 2011-10-30 CN CN2011204198418U patent/CN202279105U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107826094A (en) * | 2017-12-09 | 2018-03-23 | 吉林东光奥威汽车制动系统有限公司 | A kind of vacuum booster of double diaphragms |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JINLIN DONGGUANG AOWEI AUTOMOBILE BRAKE SYSTEM CO. Free format text: FORMER NAME: JILIN AUTOMOBILE BRAKES PLANT |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 130012 No. 16 Satellite Road, Jilin, Changchun Patentee after: Jilin Dongguang Aowei Auto. Brake System Co., Ltd. Address before: 130012 No. 16 Satellite Road, Jilin, Changchun Patentee before: Jilin Automobile Brake Factory |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120620 |
|
| CX01 | Expiry of patent term |