CN103398819A - Novel vehicle vacuum pressure sensor - Google Patents
Novel vehicle vacuum pressure sensor Download PDFInfo
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- CN103398819A CN103398819A CN2013103761601A CN201310376160A CN103398819A CN 103398819 A CN103398819 A CN 103398819A CN 2013103761601 A CN2013103761601 A CN 2013103761601A CN 201310376160 A CN201310376160 A CN 201310376160A CN 103398819 A CN103398819 A CN 103398819A
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- vacuum
- upper cavity
- vacuum pressure
- lower chamber
- vacuum booster
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Abstract
The invention relates to a novel vehicle vacuum pressure sensor. The upper cavity of the novel vehicle vacuum pressure sensor is positioned above the lower cavity; a partition plate is arranged between the upper cavity and the lower cavity; upper cavity small holes are formed in the partition plate; an upper cover is arranged on the upper cavity; the lower cavity is communicated with a vacuum booster interface; the lower cavity is connected with a vehicle vacuum booster through the vacuum booster interface; a circuit board on which a sensing chip s integrated and a sealing pad are fixedly arranged in the upper cavity; a pin is connected with the end of the circuit board and is communicated with a vehicle control end; the sealing pad is arranged between the sealing chip and the partition plate; a sealing pad small hole is formed in the sealing pad; and the sensing chip is communicated with the vacuum pressure in the vehicle vacuum booster through the sealing pad small hole, the upper cavity small holes, the lower cavity and the vacuum booster interface. By the structural design disclosed by the invention, the sensing chip senses the change of the vacuum pressure in the booster, converts the sensed change into voltage signal output which is transmitted to the vehicle control end through the pin of the sensor. Therefore, the function of monitoring the vacuum pressure in the vacuum booster is realized.
Description
Technical field
The present invention relates to a kind of pressure transducer, relate in particular to a kind of new automobile vacuum pressure sensor.
Background technology
This sensor is the ingredient of brake system of car, the vacuum pressure of vacuum booster inside on the Real-Time Monitoring brake system of car., for improving braking ability, improve the working condition of human pilot in brake system of car, vacuum booster is housed on vehicle.The vacuum source of vacuum booster is different according to the power source (engine) of different vehicle and different.Such as the vacuum source of petrol engine vehicles from inlet manifold, but in most cases all can have because of the vacuum degree deficiency of vacuum source or there is no vacuum source, have influence on the work of vacuum booster and reduce the braking ability of vehicle.
Summary of the invention
The invention provides a kind of new automobile vacuum pressure sensor that can always meet the vacuum pressure requirement for above problem.
To the invention provides a kind of new automobile vacuum pressure sensor in order overcoming the above problems, to it is characterized in that: comprise housing, upper cover, wiring board, induction chip, sealing gasket; Sensor housing comprises upper cavity and lower chamber, and upper cavity is positioned at lower chamber top, is provided with dividing plate between upper cavity and lower chamber, and dividing plate is provided with the upper cavity aperture, and upper cover is arranged on upper cavity; Lower chamber communicates with the vacuum booster interface, lower chamber is connected with automobile vacuum booster by the vacuum booster interface, be mounted with wiring board and the sealing gasket of integrated induction chip in upper cavity, the wiring board end is connected with pin, and pin is connected with the automobile control end; Sealing gasket is arranged between induction chip and dividing plate, and is provided with the sealing gasket aperture on sealing gasket, and induction chip communicates with the vacuum pressure in automobile vacuum booster by sealing gasket aperture, upper cavity aperture, lower chamber, vacuum booster interface.
On vacuum pressure sensor of the present invention, the vacuum booster interface is connected with vacuum booster, makes sensor internal induction chip and vacuum booster communicate, and namely induction chip directly touches vacuum pressure in vacuum booster.In induction chip induction booster, vacuum pressure changes and is converted into voltage signal and exports and be transferred to the automobile control end by sensor pin.Realized like this function of monitoring vacuum booster internal vacuum pressure.
As the another kind of induction mode of induction chip, have epicoele body opening I on described upper cavity, epicoele body opening I and atmospheric environment communicate.The vacuum pressure that to respond to of induction chip and atmospheric pressure compare and draw vacuum pressure in vacuum booster in such cases.
Vacuum pressure sensor of the present invention adopts vacuum pressure in gaseous tension induction chip Real-Time Monitoring automobile vacuum booster, monitoring result is transferred to the automobile control end with the form of voltage signal, when vacuum pressure in the vacuum booster is not enough, the automobile control end is opened vacuum generator and is supplemented vacuum pressure by vacuum check valve in vacuum booster, and automobile vacuum booster, vacuum pressure sensor of the present invention, automobile control end and vacuum generator have formed the closed loop control mode that in automobile vacuum booster, vacuum pressure is controlled like this.Effectively guaranteed vacuum pressure in automobile vacuum booster, before having avoided, automobile is because realizing the drawback of closed-loop control without vacuum pressure sensor.
As another kind of improvement the of the present invention, described lower chamber is provided with cavity of resorption body opening II, and the lower chamber outer wall is provided with vacuum check valve, and lower chamber is connected with vacuum generator by cavity of resorption body opening II, vacuum check valve.The setting of vacuum check valve is convenient to control and is connected with the vacuum automobile generator, and supplements vacuum pressure in automobile vacuum booster.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is provided with the structural representation of epicoele body opening I for the housing of invention;
Fig. 3 is the structural representation of supreme chamber hole I on housing of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, the invention provides a kind of new automobile vacuum pressure sensor, comprise housing 7, upper cover 2, wiring board 3, induction chip 4, sealing gasket 5.Sensor housing 7 comprises upper cavity 12 and lower chamber 13, and upper cavity 12 is positioned at lower chamber 13 tops, is provided with dividing plate 14 between upper cavity 12 and lower chamber 13, and dividing plate 14 is provided with upper cavity aperture 10.Lower chamber 13 communicates with vacuum booster interface 6, and lower chamber 13 is connected with automobile vacuum booster by vacuum booster interface 6.Be mounted with wiring board 3 and the sealing gasket 5 of integrated induction chip 4 in upper cavity 12, upper cover 2 is stamped on the top of upper cavity 12.Wiring board 3 ends are connected with pin 1, and pin 1 is connected with the automobile control end.Sealing gasket 5 is arranged between induction chip 4 and dividing plate 14, and is provided with sealing gasket aperture 11 on sealing gasket 5.Induction chip 4 communicates with the vacuum pressure in automobile vacuum booster by sealing gasket aperture 11, upper cavity aperture 10, lower chamber 13, vacuum booster interface 6.
Like this induction chip 4 directly in the induction automobile vacuum booster vacuum pressure and be converted into voltage signal by wiring board 3 and on pin 1 be transferred to the automobile control end.Judge and open vacuum generator and supplement vacuum pressure in suitable in vacuum booster by the automobile control end.
In the induction point of induction chip 4 and vacuum booster, vacuum pressure contacts and responds to vacuum pressure variation in vacuum booster, induction mode has two kinds: a kind of is that the vacuum pressure that will respond to of induction chip 4 and atmospheric pressure compare and draw vacuum pressure in vacuum booster, this mode has epicoele body opening I 15 on sensor housing 7, this epicoele body opening I 15 and atmospheric environment communicate, as shown in Figure 2; Another kind is that induction chip 4 is directly responded to and drawn vacuum pressure in vacuum booster, need not to compare with atmospheric pressure, as shown in Figure 3.In order to guarantee that induction chip 4 responds to vacuum pressure exactly, a sealing gasket 5 is installed between induction chip 4 and dividing plate 14, make induction chip 4 induction points only with the vacuum booster vacuum contact.
As another kind of improvement the of the present invention, described lower chamber 13 is provided with cavity of resorption body opening II 9, and lower chamber 13 outer walls are provided with vacuum check valve 8, and lower chamber 13 is connected with vacuum generator by cavity of resorption body opening II 9, vacuum check valve.
An integrated unmarried valve of vacuum on vacuum pressure sensor of the present invention, (internal vacuum pressure meets request for utilization) vacuum check valve is in closed condition when vacuum booster works, and when namely vacuum generator is not worked, vacuum booster and external environment is not kept apart.When vacuum pressure in the vacuum booster was not enough, the automobile control end was opened vacuum generator to the inner vacuum pressure that supplements of vacuum booster, and vacuum check valve is in open mode.
The foregoing is only the preferred embodiments of the present invention, be not restricted to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present invention.
Claims (3)
1. a new automobile vacuum pressure sensor, is characterized in that: comprise housing (7), upper cover (2), wiring board (3), induction chip (4), sealing gasket (5);
Sensor housing (7) comprises upper cavity (12) and lower chamber (13), upper cavity (12) is positioned at lower chamber (13) top, be provided with dividing plate (14) between upper cavity (12) and lower chamber (13), dividing plate (14) is provided with upper cavity aperture (10);
Lower chamber (13) communicates with vacuum booster interface (6), and lower chamber (13) is connected with automobile vacuum booster by vacuum booster interface (6);
Be mounted with wiring board (3) and the sealing gasket (5) of integrated induction chip (4) in upper cavity (12), upper cover (2) is stamped on the top of upper cavity (12);
Wiring board (3) end is connected with pin (1), and pin (1) is connected with the automobile control end;
Sealing gasket (5) is arranged between induction chip (4) and dividing plate (14), and is provided with sealing gasket aperture (11) on sealing gasket (5),
Induction chip (4) communicates with the vacuum pressure in automobile vacuum booster by sealing gasket aperture (11), upper cavity aperture (10), lower chamber (13), vacuum booster interface (6).
2. a kind of new automobile vacuum pressure sensor according to claim 1, it is characterized in that: have epicoele body opening I (15) on described upper cavity (12), epicoele body opening I (15) and atmospheric environment communicate.
3. a kind of new automobile vacuum pressure sensor according to claim 1 and 2, it is characterized in that: described lower chamber (13) is provided with cavity of resorption body opening II (9), lower chamber (13) outer wall is provided with vacuum check valve (8), and lower chamber (13) is connected with vacuum generator by cavity of resorption body opening II (9), vacuum check valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103761601A CN103398819A (en) | 2013-08-26 | 2013-08-26 | Novel vehicle vacuum pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103761601A CN103398819A (en) | 2013-08-26 | 2013-08-26 | Novel vehicle vacuum pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103398819A true CN103398819A (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013103761601A Pending CN103398819A (en) | 2013-08-26 | 2013-08-26 | Novel vehicle vacuum pressure sensor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509954A (en) * | 2015-11-26 | 2016-04-20 | 宁波新思创机电科技股份有限公司 | Vacuum pressure sensor |
| CN105882636A (en) * | 2016-04-27 | 2016-08-24 | 北京长安汽车工程技术研究有限责任公司 | Check valve assembly, brake system and vehicle |
| CN106195426A (en) * | 2016-09-21 | 2016-12-07 | 宁波乔士橡塑有限公司 | A kind of Novel vacuum check valve |
| CN108132123A (en) * | 2017-12-23 | 2018-06-08 | 埃泰克汽车电子(芜湖)有限公司 | Braking automobile power-assisted vacuum sensor, pressure difference detection method and preparation method |
| CN109572649A (en) * | 2018-12-30 | 2019-04-05 | 吉林东光奥威汽车制动系统有限公司 | A kind of Motorized vacuum apparatus for controlling pump adapting to plateau and plains region |
| WO2019166225A1 (en) * | 2018-03-01 | 2019-09-06 | Robert Bosch Gmbh | Pressure sensor for a brake booster |
| CN112061100A (en) * | 2020-08-20 | 2020-12-11 | 东风汽车集团有限公司 | Vacuum booster, brake boosting control system and control method |
| CN112665776A (en) * | 2020-12-25 | 2021-04-16 | 黄山徽熿新能源科技有限公司 | Double-pressure sensor for new energy automobile braking system |
| CN113044014A (en) * | 2019-12-27 | 2021-06-29 | 上海亚大汽车塑料制品有限公司 | Pressure retaining device of automobile vacuum braking system |
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| US20030205127A1 (en) * | 2000-12-08 | 2003-11-06 | Stefan Borsch | Sensor system for a vacuum brake booster |
| US20030213239A1 (en) * | 2000-12-08 | 2003-11-20 | Stefan Borsch | Sensor arrangement for a vacuum brake booster and a vacuum brake booster provided with this sensor arrangement |
| CN101191752A (en) * | 2006-11-27 | 2008-06-04 | 罗伯特·博世有限公司 | Capteur de pression a clapet anti-retour |
| CN201382840Y (en) * | 2009-04-30 | 2010-01-13 | 宋令清 | Pressure detecting device |
| CN202853838U (en) * | 2012-08-17 | 2013-04-03 | 森萨塔科技（常州）有限公司 | Vacuum pressure transducer apparatus for vehicles |
| CN203419131U (en) * | 2013-08-26 | 2014-02-05 | 昆山市兴利车辆科技配套有限公司 | Novel automobile vacuum pressure sensor |
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2013
- 2013-08-26 CN CN2013103761601A patent/CN103398819A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20030205127A1 (en) * | 2000-12-08 | 2003-11-06 | Stefan Borsch | Sensor system for a vacuum brake booster |
| US20030213239A1 (en) * | 2000-12-08 | 2003-11-20 | Stefan Borsch | Sensor arrangement for a vacuum brake booster and a vacuum brake booster provided with this sensor arrangement |
| CN101191752A (en) * | 2006-11-27 | 2008-06-04 | 罗伯特·博世有限公司 | Capteur de pression a clapet anti-retour |
| CN201382840Y (en) * | 2009-04-30 | 2010-01-13 | 宋令清 | Pressure detecting device |
| CN202853838U (en) * | 2012-08-17 | 2013-04-03 | 森萨塔科技（常州）有限公司 | Vacuum pressure transducer apparatus for vehicles |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509954A (en) * | 2015-11-26 | 2016-04-20 | 宁波新思创机电科技股份有限公司 | Vacuum pressure sensor |
| CN105882636A (en) * | 2016-04-27 | 2016-08-24 | 北京长安汽车工程技术研究有限责任公司 | Check valve assembly, brake system and vehicle |
| CN106195426A (en) * | 2016-09-21 | 2016-12-07 | 宁波乔士橡塑有限公司 | A kind of Novel vacuum check valve |
| CN108132123A (en) * | 2017-12-23 | 2018-06-08 | 埃泰克汽车电子(芜湖)有限公司 | Braking automobile power-assisted vacuum sensor, pressure difference detection method and preparation method |
| CN111819429A (en) * | 2018-03-01 | 2020-10-23 | 罗伯特·博世有限公司 | Pressure sensor for a brake booster |
| WO2019166225A1 (en) * | 2018-03-01 | 2019-09-06 | Robert Bosch Gmbh | Pressure sensor for a brake booster |
| US11945422B2 (en) | 2018-03-01 | 2024-04-02 | Robert Bosch Gmbh | Pressure sensor for a brake booster |
| CN109572649A (en) * | 2018-12-30 | 2019-04-05 | 吉林东光奥威汽车制动系统有限公司 | A kind of Motorized vacuum apparatus for controlling pump adapting to plateau and plains region |
| CN109572649B (en) * | 2018-12-30 | 2023-10-24 | 吉林东光奥威汽车制动系统有限公司 | Electric vacuum pump control device suitable for plateau and plateau areas |
| CN113044014A (en) * | 2019-12-27 | 2021-06-29 | 上海亚大汽车塑料制品有限公司 | Pressure retaining device of automobile vacuum braking system |
| CN112061100A (en) * | 2020-08-20 | 2020-12-11 | 东风汽车集团有限公司 | Vacuum booster, brake boosting control system and control method |
| CN112061100B (en) * | 2020-08-20 | 2021-11-23 | 东风汽车集团有限公司 | Vacuum booster, brake boosting control system and control method |
| CN112665776A (en) * | 2020-12-25 | 2021-04-16 | 黄山徽熿新能源科技有限公司 | Double-pressure sensor for new energy automobile braking system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131120 |