CN103738325B - Pressure sensor - Google Patents
Pressure sensor Download PDFInfo
- Publication number
- CN103738325B CN103738325B CN201310739328.0A CN201310739328A CN103738325B CN 103738325 B CN103738325 B CN 103738325B CN 201310739328 A CN201310739328 A CN 201310739328A CN 103738325 B CN103738325 B CN 103738325B
- Authority
- CN
- China
- Prior art keywords
- sensor
- pressure sensor
- circuit board
- induction module
- electronic
- 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.)
- Active
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 230000006698 induction Effects 0.000 claims description 45
- 238000007789 sealing Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a pressure sensor, which is externally provided with a protective sleeve, wherein one end of the pressure sensor is provided with a mechanical sensing module and is arranged on a valve block of a hydraulic control unit, the other end of the pressure sensor is provided with an output terminal, the mechanical sensing module in the pressure sensor is provided with an electronic sensing module, and a sensor circuit board is fixed between the output terminal and the electronic sensing module and is electrically connected with the output terminal and the electronic sensing module through a flexible circuit board. The flexible connection in the sensor enables the external connection force between the external sensor and the electronic control unit of the electronic stabilization system to have no interference on the sensor signal, and the sensor can resist external vibration and reliably work. Various assembling forces generated in the sensor manufacturing process cannot remain on the sensitive module, so that the sensor has more excellent performance and is more beneficial to manufacturing.
Description
Technical field
The present invention relates to a kind of pressure sensor for automobile brake electronic control system hydraulic control device, especially relate to
And it is used for automobile electronic stabilization system（ESP system）The attachment structure of middle pressure sensor.
Background technology
In the conventional hydraulic of automobile is braked, by the operation of brake pedal, brake fluid pressure is applied on master cylinder
And then be applied on wheel cylinder, to be braked.When the brake force that wheel cylinder is applied on brake friction disk is more than tire and ground
Stiction when, wheel can skid on road surface, lead to brake force decline and wheel steering power decline（Because tire and ground
The coefficient of kinetic friction be less than confficient of static friction）It is necessary to prevent this skidding to guarantee optimum braking effect.Meanwhile, also must
Must prevent from when braking, controlling the steering locking phenomenon of deflecting roller, and need to drive work in emergency turn, braking in a turn etc.
The phenomenons such as rollover, steering force deficiency are placed under condition.It is therefore proposed that a kind of controllable apply wheel cylinder on hydraulic coupling automobile antilock
Preventing the generation of these phenomenons, this system consists essentially of multiple magnetic valves, is used for controlling for dead system and electric stabilizing system
The electronic control unit of magnetic valve（ECU）, hydraulic accumulator is with, hydraulic pump and pressure sensor.Pressure sensor be used for sensing with
The related master cylinder pressure of pedal force, and become electric signal to pass to electronic control unit, Electronic Control the pressure conversion sensing
Unit controls brake operating according to the electric signal receiving.
The pressure sensor structure using at present is as shown in figure 1, pressure sensor 20 is arranged on automobile electronic stabilization system
On the valve block 10 of hydraulic control unit.Pressure sensor 20 mainly includes electric signal output terminal 33, protective case 25, sensor electricity
Road plate 30, support frame 24, electronic induction module 23, mechanical induction module 21 grade part.Mechanical induction module 21 bottom and valve
Block 10 is sealingly fixed to together.Electronic induction module 23 is connected in the upper end of mechanical induction module 21.Support frame 24
Play the effect that support, fixation and circuit connect, support frame 24 is lined with some electric conductors.Electric signal output terminal 33 with
Support bone frame 24 upper end is fixed and is set up circuit and connects.Sensor circuit board 30 passes through support block 31 and sets up circuit with support frame 24
Connect and fixing.Electronic induction module 23 is set up circuit by contiguous block 29 and support frame 24 and is connected and fixing, and by certainly
The slot structure 27 of body is coordinated so that electronic induction module 23 is fixing with support frame 24 with the extended structure 28 of support frame 24.
Protective case 25 is passed through end connecting 26 and is connected with mechanical induction module 21（The welding connecting mode generally sealing）,
Support frame 24 is fixed by end support structure 32 simultaneously.
The operation principle of pressure sensor 20 is as follows：When driver's brake pedal, brake fluid is logical from valve block 10
Road 11 enters the conduction hole 22 of mechanical induction module 21 and produces certain pressure wherein, the upper end of mechanical induction module 21
The deformation that pressure in conduction hole 21 is led to by film sensing unit is by reference on the strain resistor of electronic induction module 23, thus
Electronic induction module 23 produces corresponding initial electrical signal, and this initial electrical signal is delivered in sensor circuit board 30 and is processed
Pass through electric signal output electronics 33 more afterwards, spring 40, electric signal receiving terminal 51 are delivered to the circuit board 50 of electronic control unit
On, then electronic control unit sends instruction to control to braking procedure to the magnetic valve in hydraulic control unit, hydraulic pump
System.
Above-mentioned pressure sensor structure, due to being fixed with support frame 24 during whole electronics thereon directly with sense electronicses
Answer module 23 to be rigidly connected, the coupling force of sensor 20 and spring 40 can be delivered in electronic induction module 23 so that
Electronic induction module 23 is interfered, and leads to the pressure signal distortion that electronic control unit receives.Protective case 25 is to support rib
The also strong effect of frame 24, this active force also can be delivered to and lead to distorted signals in electronic induction module 23.Above-mentioned signal is done
Disturb and especially can produce bigger deviation after vehicle travels and produces vibration.Moreover, when manufacturing pressure sensor, due to dress
Join protective case 25 to be delivered in electronic induction module 23 by 24 assembly forces of support frame it is necessary to carry out after the completion of assembling
Suitable demarcation, to compensate the deviation that this " precompression " produces, increases and manufactures difficulty.Meanwhile, support frame 24 general for mould
Tool moulding, and the copper sheet material of liner larger area, high cost.
Content of the invention
The technical problem to be solved is to realize that a kind of output signal is reliable and stable, the pressure sensing of manufacturing cost
Device.
To achieve these goals, the technical solution used in the present invention is：A kind of pressure sensor, outside is provided with protection
Set, one end of pressure sensor is provided with mechanical induction module and is arranged on the valve block of hydraulic control unit, and the other end is provided with defeated
Go out terminal, the mechanical induction module in described pressure sensor is provided with electronic induction module, described lead-out terminal and electricity
It is fixed with sensor circuit board between sub- induction module, and electrically connected by FPC.
Described sensor circuit board is fixed in electronic induction module, and described lead-out terminal is fixed on middle shifting circuit mould
On block, electrically connected by FPC between described sensor circuit board and transfer circuit module.
Described protective case one end and mechanical sense answer module sealing to fix, and other end inwall is provided with flanged structure, described
Transfer circuit module is gripped by the rivet pressing structure inwardly closing up in flanged structure and protective case end.
It is provided with seal between described flanged structure and transfer circuit module.
Described lead-out terminal is fixed on sensor circuit board, described sensor circuit board and electronic induction module it
Between electrically connected by FPC.
Described protective case one end and mechanical sense answer module sealing to fix, and other end inwall is provided with flanged structure, described
Sensor circuit board is gripped by the rivet pressing structure inwardly closing up in flanged structure and protective case end.
It is provided with seal between described flanged structure and sensor circuit board.
Described seal is flexible member.
Described lead-out terminal connects receiving terminal, the electronics outside described receiving terminal and pressure sensor by spring
Control unit circuit board connects.
It is an advantage of the current invention that the flexible connection of sensor internal makes external sensor to electric stabilizing system electronics
The no any interference to sensor signal of external connection power between control unit, sensor can resist the external world vibration and reliability
Ground work.The various assembly forces producing in sensor production process will not remain on sensitive blocks so that sensor performance
More superior and be more conducive to manufacture.
Additionally, protective case can intercept the moisture in the external world, dust with the seal of transfer circuit module part, preferably protect
The sensitive blocks of sensor internal and sensor circuit board, eliminate that complex-shaped need die sinking manufactures and comprise more copper
The support part of material, reduces the manufacturing cost of pressure sensor.
Brief description
Below content of width accompanying drawing expression every in description of the invention and the mark of in figure are briefly described：
Fig. 1 is the current pressure sensor structure schematic diagram using；
Fig. 2 is the pressure sensor structure schematic diagram of embodiment 1；
Fig. 3 is the pressure sensor structure schematic diagram of embodiment 2；
The mark of above-mentioned in figure is：10th, valve block；11st, passage；20th, pressure sensor；21st, mechanical induction module；22、
Conduction hole；23rd, electronic induction module；24th, support frame；25th, protective case；26th, end connecting；27th, slot structure；28th, prolong
Stretch structure；29th, contiguous block；30th, sensor circuit board；31st, support block；32nd, end support structure；33rd, lead-out terminal；34th, in
Shifting circuit module；35th, seal；36th, FPC；40th, spring；50th, circuit board；51st, receiving terminal.
Specific embodiment
Embodiment 1：
Understand referring to Fig. 2, pressure sensor 20 is mainly by electric signal output terminal 33, protective case 25, sensor circuit board
30, transfer circuit module 34, seal 35, FPC 36, electronic induction module 23, mechanical induction module 21 grade parts
Composition.Wherein, the mechanical induction module 21 positioned at pressure sensor 20 one end is arranged on electric stabilizing system hydraulic control unit
On valve block 10, the other end is provided with lead-out terminal 33, and lead-out terminal 33 connects receiving terminal 51 by spring 40, receiving terminal 51 with
Electronic control unit circuit board 50 outside pressure sensor 20 connects, and the mechanical induction module 21 in pressure sensor 20 is provided with
Electronic induction module 23.
Sensor circuit board 30 is fixed in electronic induction module 23, and lead-out terminal 33 is fixed on transfer circuit module 34
On, electrically connected, such that it is able to avoid electronics by FPC 36 between sensor circuit board 30 and transfer circuit module 34
Induction module 23 is affected by external force, leads to sensor reliability to decline.
Protective case 25 one end is fixed with mechanical induction module 21 sealing, and other end inwall is provided with flanged structure, middle shifting circuit
Module 34 is gripped by the rivet pressing structure inwardly closing up in flanged structure and protective case 25 end.And in flanged structure and biography
It is provided with seal 35, seal 35 selects flexible member, and the fixed structure of this part is easy to process, also can between sensor circuit board 30
Enough reliable sealings and fixation pressure sensor 20, it is to avoid complicated assembling structure, can effectively reduce production cost.
Embodiment 2：
Understand referring to Fig. 3, pressure sensor 20 is mainly by electric signal output terminal 33, protective case 25, sensor circuit board
30, seal 35, FPC 36, electronic induction module 23, mechanical induction module 21 grade parts composition.Wherein, it is located at
The mechanical induction module 21 of pressure sensor 20 one end is arranged on electric stabilizing system hydraulic control unit valve block 10, the other end
It is provided with lead-out terminal 33, lead-out terminal 33 connects receiving terminal 51 by spring 40, outside receiving terminal 51 and pressure sensor 20
Electronic control unit circuit board 50 connect, the mechanical induction module 21 in pressure sensor 20 is provided with electronic induction module
23.
After sensor circuit board 30 structure is increased, more directly will be fixed thereon for electric signal output terminal 33, sensor
Electrically connected by FPC 36 between circuit board 30 and electronic induction module 23.Such electric connection structure can avoid electricity
Sub- induction module 23 is affected by external force, leads to sensor reliability to decline.
Protective case 25 one end is fixed with mechanical induction module 21 sealing, and other end inwall is provided with flanged structure, sensor electricity
Road plate 30 is gripped by the rivet pressing structure inwardly closing up in flanged structure and protective case 25 end.Flanged structure and sensor electricity
Seal 35, the preferred flexible member of seal 35 can be set up between road plate 30.The fixed structure of this part easy to process it is also possible to can
The sealing leaned on and fixation pressure sensor 20, it is to avoid complicated assembling structure, can effectively reduce production cost.
Above in conjunction with accompanying drawing, the present invention is exemplarily described it is clear that the present invention implements is not subject to aforesaid way
Restriction, as long as employing the improvement of various unsubstantialities that method of the present invention design and technical scheme are carried out, or without changing
Enter and the design of the present invention and technical scheme are directly applied to other occasions, all within protection scope of the present invention.
Claims (2)
1. a kind of pressure sensor, outside is provided with protective case（25）, pressure sensor（20）One end be provided with mechanical induction module
（21）And it is arranged on the valve block of hydraulic control unit（10）On, the other end is provided with lead-out terminal（33）, described pressure sensor
（20）Interior mechanical induction module（21）It is provided with electronic induction module（23）It is characterised in that：Described lead-out terminal（33）
With electronic induction module（23）Between be fixed with sensor circuit board（30）, and pass through FPC（36）Electrical connection;
Described lead-out terminal（33）It is fixed on sensor circuit board（30）On, described sensor circuit board（30）With sense electronicses
Answer module（23）Between pass through FPC（36）Electrical connection；
Described protective case（25）One end and mechanical induction module（21）Sealing is fixed, and other end inwall is provided with flanged structure, institute
The sensor circuit board stated（30）By flanged structure and protective case（25）The rivet pressing structure inwardly closing up in end grips;
Described flanged structure and sensor circuit board（30）Between be provided with seal（35）;
Described lead-out terminal（33）By spring（40）Connect receiving terminal（51）, described receiving terminal（51）Pass with pressure
Sensor（20）Outer electronic control unit circuit board（50）Connect.
2. pressure sensor according to claim 1 it is characterised in that：Described seal（35）For flexible member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310739328.0A CN103738325B (en) | 2013-12-29 | 2013-12-29 | Pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310739328.0A CN103738325B (en) | 2013-12-29 | 2013-12-29 | Pressure sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103738325A CN103738325A (en) | 2014-04-23 |
| CN103738325B true CN103738325B (en) | 2017-02-08 |
Family
ID=50495425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310739328.0A Active CN103738325B (en) | 2013-12-29 | 2013-12-29 | Pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103738325B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017209413A1 (en) * | 2017-06-02 | 2018-12-06 | Robert Bosch Gmbh | Sensor device for monitoring at least one battery cell |
| KR101996852B1 (en) * | 2017-09-29 | 2019-07-08 | 주식회사 만도 | Electronic control brake system for vehicle with pressure sensor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4314844A1 (en) * | 1993-05-05 | 1994-11-10 | Clean Autec Ges Fuer Umwelt & | Pressure measuring device with a resistance measuring bridge |
| DE102005038822A1 (en) * | 2005-08-17 | 2007-02-22 | Continental Teves Ag & Co. Ohg | Integrated pressure sensor with capacitive measurement principle e.g. for sensing brake pressure, evaluates capacitive change, caused by brake pressure with pressure sensor provided in form of pressure capsule |
| CN201340320Y (en) * | 2008-11-07 | 2009-11-04 | 株洲南车时代电气股份有限公司 | Vehicle pressure sensor |
| CN202676331U (en) * | 2012-06-27 | 2013-01-16 | 上海文襄汽车传感器有限公司 | Lower locking pressure transducer based on silicon-glass bonding technology |
| CN102985801A (en) * | 2010-07-13 | 2013-03-20 | 三菱电机株式会社 | Pressure sensor unit and brake device |
| CN203231865U (en) * | 2013-04-26 | 2013-10-09 | 陈君杰 | Dielectric isolation pressure sensor based on backside metallization process |
| CN103411722A (en) * | 2013-07-26 | 2013-11-27 | 上海俊乐制冷自控元件有限公司 | Improved pressure transmitter |
| CN203793321U (en) * | 2013-12-29 | 2014-08-27 | 芜湖伯特利电子控制系统有限公司 | Pressure sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6506069B2 (en) * | 2001-01-25 | 2003-01-14 | Kelsey-Hayes Company | Floating electrical connector for a pressure sensor |
-
2013
- 2013-12-29 CN CN201310739328.0A patent/CN103738325B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4314844A1 (en) * | 1993-05-05 | 1994-11-10 | Clean Autec Ges Fuer Umwelt & | Pressure measuring device with a resistance measuring bridge |
| DE102005038822A1 (en) * | 2005-08-17 | 2007-02-22 | Continental Teves Ag & Co. Ohg | Integrated pressure sensor with capacitive measurement principle e.g. for sensing brake pressure, evaluates capacitive change, caused by brake pressure with pressure sensor provided in form of pressure capsule |
| CN201340320Y (en) * | 2008-11-07 | 2009-11-04 | 株洲南车时代电气股份有限公司 | Vehicle pressure sensor |
| CN102985801A (en) * | 2010-07-13 | 2013-03-20 | 三菱电机株式会社 | Pressure sensor unit and brake device |
| CN202676331U (en) * | 2012-06-27 | 2013-01-16 | 上海文襄汽车传感器有限公司 | Lower locking pressure transducer based on silicon-glass bonding technology |
| CN203231865U (en) * | 2013-04-26 | 2013-10-09 | 陈君杰 | Dielectric isolation pressure sensor based on backside metallization process |
| CN103411722A (en) * | 2013-07-26 | 2013-11-27 | 上海俊乐制冷自控元件有限公司 | Improved pressure transmitter |
| CN203793321U (en) * | 2013-12-29 | 2014-08-27 | 芜湖伯特利电子控制系统有限公司 | Pressure sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103738325A (en) | 2014-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102795219B (en) | Motor-assisted integrated automobile brake system | |
| JP4923839B2 (en) | Brake hydraulic pressure control unit for vehicles | |
| CN103552557B (en) | There is the Electro-hydraulic brake system of electrodynamic braking power-assisted and brake-by-wire function | |
| CN102060009B (en) | Braking system with electronic braking assisting function | |
| CN102481916B (en) | Main brake cylinder and for making the method for main brake cylinder work | |
| WO2010094489A3 (en) | Braking system for a land vehicle with regenerative braking functionality | |
| US9302661B2 (en) | Braking system for hybrid vehicle and control method for the same | |
| CN102343900A (en) | Brake device with active brake force limit and double-wheel vehicle equipped therewith | |
| CN103738325B (en) | Pressure sensor | |
| US20130073162A1 (en) | Sensing vehicle wheel speed using in-wheel motor | |
| CN105329227A (en) | Brake system for vehicle | |
| CN201941755U (en) | Braking system with electronically-assisted braking function | |
| CN202728214U (en) | Motor-assistant integrated automobile brake system | |
| CN107554503A (en) | Driving type piezoelectric actuator brake | |
| CN109159776A (en) | A kind of vehicle wheel cylinder hydraulic force control system and method based on dual power source | |
| CN203793321U (en) | Pressure sensor | |
| CN109927701A (en) | A kind of pure line traffic control brake system of car of centralized driving formula and its control method | |
| CN108896238A (en) | A kind of array pressure sensor | |
| CN205131220U (en) | Automotive electronics stabilizes program control system | |
| CN117261873A (en) | Emergency safety system for tire burst vehicle and control method | |
| CN106347335A (en) | Assistance system for vehicle | |
| CN106458181A (en) | Hydraulic unit for a brake system of a vehicle, and method for producing a hydraulic unit for a brake system of a vehicle | |
| TWI735321B (en) | The first integrated kit of the electric bicycle anti-lock braking system (ABS) | |
| CN201472358U (en) | A booster braking system | |
| CN108146421B (en) | Waterproof ventilation structure of electric control unit of electric control braking system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |