CN107351830A - A kind of electric automobile vacuum brake assistor - Google Patents
A kind of electric automobile vacuum brake assistor Download PDFInfo
- Publication number
- CN107351830A CN107351830A CN201710563631.8A CN201710563631A CN107351830A CN 107351830 A CN107351830 A CN 107351830A CN 201710563631 A CN201710563631 A CN 201710563631A CN 107351830 A CN107351830 A CN 107351830A
- Authority
- CN
- China
- Prior art keywords
- chamber
- air
- valve
- diaphragm
- brake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
- B60T13/569—Vacuum systems indirect, i.e. vacuum booster units characterised by piston details, e.g. construction, mounting of diaphragm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
- B60T13/57—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of control valves
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a kind of electric automobile vacuum brake assistor,Including booster body,Inflating pump and breather cheek valve,The booster body includes booster push rod,Air chamber diaphragm,Brake pushrod,Vacuum check valve and air valve,Brake body is divided into front chamber and rear chamber by the air chamber diaphragm,Diaphragm return spring is provided with the front chamber,The both ends of the diaphragm return spring are respectively fixedly connected with the gentle room diaphragm of ante-chamber chamber interior walls of booster body,Booster push rod return spring is provided with the rear chamber,Air valve,The front end of the air valve is provided with breather cheek valve,The breather cheek valve is fixed on the air inlet front end of air valve,The inflating pump enters the inside of rear chamber by tracheae,The present invention is easy to use,Driver's more easily brake pedal can be made,And automobile can be made after loosening the brake,Rear chamber can recover vacuum rapidly.
Description
Technical field
The present invention relates to a kind of brake booster, specially a kind of electric automobile vacuum brake assistor, belong to automobile zero
Field of components.
Background technology
Vacuum booster is to increase the part that driver puts on power on pedal using vacuum (negative pressure), if engine is just
At work, the negative pressure as caused by vavuum pump or engine air inlet tube, which can inhale the vacuum check valve of vacuum booster, holds, this
Shi Qianhou air chambers are all in vacuum state, and during braking, vacuum valve is closed, while front and rear air chamber is isolated, and air door is opened,
Air enters rear cavity gas chamber, resulting front and rear chamber draught head promote air chamber diaphragm, air chamber form with piston forward
Motion, now, the rubber reaction plate being assemblied in master cylinder push-rod assembly are pushed away by air valve and piston simultaneously
Power is acted on, and the brake force of amplification is sent into brake pushrod, loosened the brake, in the effect of main force's device push rod return spring
Under, booster push rod drives air valve to move backward, is first shut off air door, vacuum valve, power-assisted will be opened by continuing motion
The front and rear air chamber connection of device, vacuum re-establishes, while vacuum booster recovers nature.
The driver of electric automobile is mostly old man, and due to the age, the leg power of old man will be weaker than young man, very
Empty booster can help old man's more easily brake pedal, and it is an object of the invention in original vacuum booster
On the basis of, make brake pedal more laborsaving, facilitate old man and some special crowds to use.
The content of the invention
The technical problem to be solved in the present invention is the defects of overcoming prior art, there is provided a kind of electric automobile vacuum braking helps
Power device.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
A kind of electric automobile vacuum brake assistor of the present invention, including booster body, inflating pump and breather cheek valve, institute
Stating booster body includes booster push rod, air chamber diaphragm, brake pushrod, vacuum check valve and air valve, the air chamber diaphragm
Brake body is divided into front chamber and rear chamber, diaphragm return spring, the diaphragm return spring are provided with the front chamber
Both ends be respectively fixedly connected with the gentle room diaphragm of ante-chamber chamber interior walls of booster body, be provided with booster push rod in the rear chamber
Return spring, air valve, the front end of the air valve are provided with breather cheek valve, and the breather cheek valve is fixed on entering for air valve
Gas port front end, the inflating pump enter the inside of rear chamber by tracheae.
Further, the switch of inflating of the inflating pump is arranged on below brake pedal, and the switch of inflating touches to be normally opened
Point switch.
Further, air cleaning unit is provided with the air intake of the rear chamber.
Further, aspiration pump is connected with the back cavity chamber outer wall, the aspiration pump enters rear chamber by exhaust tube
Inside, the pumping switch of the aspiration pump are arranged on below brake pedal, and the pumping contact switch switchs for normally-closed contact.
The beneficial effect that is reached of the present invention is：
It is more laborsaving when the 1st, making driver's brake pedal；
2nd, make brake pedal unclamp after the fast quick-recovery vacuum of rear chamber.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of electric automobile vacuum brake assistor structural representation of the present invention；
In figure：1st, inflating pump；2nd, breather cheek valve；3rd, booster push rod；4th, air chamber diaphragm；5th, brake pushrod；6th, air
Valve；7th, front chamber；8th, rear chamber；9th, diaphragm return spring；10th, booster push rod return spring；11st, tracheae；12nd, purification of air
Device；13rd, aspiration pump；14th, exhaust tube.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
As shown in figure 1, a kind of electric automobile vacuum brake assistor, including booster body, inflating pump 1 and one-way air inlet
Valve 2, the booster body include booster push rod 3, air chamber diaphragm 4, brake pushrod 5, vacuum check valve and air valve 6, institute
State air chamber diaphragm 4 and brake body is divided into front chamber 7 and rear chamber 8, diaphragm return spring 9, institute are provided with the front chamber 7
The both ends for stating diaphragm return spring 9 are respectively fixedly connected with the inwall of front chamber 7 and air chamber diaphragm 4 of booster body, the back cavity
Booster push rod return spring 10, air valve 6 are provided with room 8, the front end of the air valve 6 is provided with breather cheek valve 2, the list
The air inlet front end of air valve 6 is fixed on to intake valve 2, the inflating pump 1 enters the inside of rear chamber 8 by tracheae 11.
The switch of inflating of the inflating pump 1 is arranged on below brake pedal, and the switch of inflating is normally opened contact switch, institute
State and air cleaning unit 12 is provided with the air intake of rear chamber 8, aspiration pump 13 is connected with the outer wall of rear chamber 8, it is described
Aspiration pump 13 is entered inside rear chamber 8 by exhaust tube 14, and the pumping switch of the aspiration pump 13 is arranged on below brake pedal,
The pumping contact switch is switched for normally-closed contact, steps on pedal, and the energization of inflating pump 1 and aspiration pump 13 can be controlled to power off,
Make simple to operate.
It should be noted that a kind of electric automobile vacuum brake assistor workflow of the present invention is：When driver steps on
During brake pedal, air valve 6 is opened, and air can enter rear chamber 8, and at this moment the switch of inflating of inflating pump 1 also closes, inflating pump 1
Start working, start to inflate to the inside of rear chamber 8, because the front end of air valve 6 is provided with breather cheek valve 2, air can only enter can not
Go out, the air pressure in rear chamber 8 is greater than ambient pressure, makes air chamber diaphragm 4 is easier to be depressed, and promotes brake switch, works as pine
After opening brake pedal, aspiration pump 13 is started working, and rear chamber 8 is recovered vacuum.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's
Within protection domain.
Claims (4)
1. a kind of electric automobile vacuum brake assistor, including booster body, inflating pump (1) and breather cheek valve (2), it is special
Sign is that the booster body includes booster push rod (3), air chamber diaphragm (4), brake pushrod (5), vacuum check valve and sky
Brake body is divided into front chamber (7) and rear chamber (8), set in the front chamber (7) by air valve (6), the air chamber diaphragm (4)
There is diaphragm return spring (9), the both ends of the diaphragm return spring (9) are respectively fixedly connected with the front chamber (7) of booster body
Inwall and air chamber diaphragm (4), booster push rod return spring (10), air valve (6), the sky are provided with the rear chamber (8)
The front end of air valve (6) is provided with breather cheek valve (2), and the breather cheek valve (2) is fixed on the air inlet front end of air valve (6),
The inflating pump (1) enters the inside of rear chamber (8) by tracheae (11).
A kind of 2. electric automobile vacuum brake assistor according to claim 1, it is characterised in that the inflating pump (1)
Switch of inflating be arranged on below brake pedal, the switch of inflating is normally opened contact switch.
A kind of 3. electric automobile vacuum brake assistor according to claim 1, it is characterised in that the rear chamber (8)
Air intake at be provided with air cleaning unit (12).
A kind of 4. electric automobile vacuum brake assistor according to claim 1, it is characterised in that the rear chamber (8)
Aspiration pump (13) is connected with outer wall, the aspiration pump (13) enters rear chamber (8) inside, the pumping by exhaust tube (14)
The pumping switch of pump (13) is arranged on below brake pedal, and the pumping contact switch switchs for normally-closed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710563631.8A CN107351830A (en) | 2017-07-12 | 2017-07-12 | A kind of electric automobile vacuum brake assistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710563631.8A CN107351830A (en) | 2017-07-12 | 2017-07-12 | A kind of electric automobile vacuum brake assistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107351830A true CN107351830A (en) | 2017-11-17 |
Family
ID=60293326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710563631.8A Withdrawn CN107351830A (en) | 2017-07-12 | 2017-07-12 | A kind of electric automobile vacuum brake assistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107351830A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112092792A (en) * | 2020-09-24 | 2020-12-18 | 李强 | Power assisting device for electric automobile braking system |
| CN112228257A (en) * | 2020-10-15 | 2021-01-15 | 赵绍兴 | Reverse blowing type air filter for engineering machinery and engineering machinery equipment |
| CN112874496A (en) * | 2021-02-26 | 2021-06-01 | 高小明 | Vacuum booster for automobile braking |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205997874U (en) * | 2016-08-31 | 2017-03-08 | 中国汽车技术研究中心 | Vacuum brake booster of electric automobile |
-
2017
- 2017-07-12 CN CN201710563631.8A patent/CN107351830A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205997874U (en) * | 2016-08-31 | 2017-03-08 | 中国汽车技术研究中心 | Vacuum brake booster of electric automobile |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112092792A (en) * | 2020-09-24 | 2020-12-18 | 李强 | Power assisting device for electric automobile braking system |
| CN112228257A (en) * | 2020-10-15 | 2021-01-15 | 赵绍兴 | Reverse blowing type air filter for engineering machinery and engineering machinery equipment |
| CN112228257B (en) * | 2020-10-15 | 2022-04-19 | 赵绍兴 | Reverse blowing type air filter for engineering machinery and engineering machinery equipment |
| CN112874496A (en) * | 2021-02-26 | 2021-06-01 | 高小明 | Vacuum booster for automobile braking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171117 |