CN210416543U - Pedal travel displacement sensor of intelligent braking system - Google Patents
Pedal travel displacement sensor of intelligent braking system Download PDFInfo
- Publication number
- CN210416543U CN210416543U CN201921224609.1U CN201921224609U CN210416543U CN 210416543 U CN210416543 U CN 210416543U CN 201921224609 U CN201921224609 U CN 201921224609U CN 210416543 U CN210416543 U CN 210416543U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- base
- magnet
- sensor chip
- cavity
- 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
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 22
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052709 silver Inorganic materials 0.000 claims abstract description 10
- 239000004332 silver Substances 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 6
- 230000002633 protecting effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Images
Landscapes
- Braking Elements And Transmission Devices (AREA)
Abstract
The utility model relates to a pedal travel displacement sensor of an intelligent brake system, wherein one end of a flexible circuit board is connected with a first circuit board, and the other end is connected with a second circuit board; the first circuit board and the flexible circuit board are positioned on the same horizontal plane; the sensor chip is arranged on the first circuit board in a vertically symmetrical mode through double chips, the position of the magnetic core is located on the central plane of the magnet in the magnet mounting support and is arranged in parallel with the magnet, and the second circuit board is provided with a silver contact piece; one end of the cavity of the base is provided with a base clamping groove, and the other end of the cavity of the base is provided with a sensor chip mounting position; the flexible circuit board is arranged on the cavity, so that the sensor chip is placed in the sensor chip mounting position, a base round hole is further formed in the outer side of the base clamping groove and used for placing a conductive spring, and the conductive spring is in contact connection with the silver contact piece on the second circuit board; the upper cover is covered on the cavity of the base. The utility model has the advantages of compact structure and simple assembly and disassembly.
Description
Technical Field
The utility model relates to a displacement signal gathers technical field, especially relates to an intelligence braking system's footboard stroke displacement sensor.
Background
The fuel vehicle is replaced by a new energy vehicle, the new energy vehicle is a non-electric vehicle, the product replacement inevitably brings challenges to the innovation of a new round of products, for example, the traditional fuel vehicle braking system power assistance depends on an engine to generate a vacuum source so as to provide braking power assistance, but the pure electric vehicle does not have the function, so that the development of a novel braking power assistance system becomes a necessary way for development, the intelligent braking system is operated on the premise, the sensing technology and signal acquisition become an indispensable part in the system, such as human eyes and nose, and the external information is collected to provide input for the execution of the whole system.
SUMMERY OF THE UTILITY MODEL
The utility model provides an intelligence braking system's footboard stroke displacement sensor has compact structure and assembles simple advantage of dismantlement.
The utility model provides a technical scheme that its technical problem adopted is: the pedal travel displacement sensor comprises a sensor body and a magnet mounting bracket, wherein the sensor body comprises an upper cover, a base and a circuit board assembly, the circuit board assembly comprises a first circuit board, a second circuit board and a flexible circuit board, one end of the flexible circuit board is connected with the first circuit board, and the other end of the flexible circuit board is connected with the second circuit board; the first circuit board and the flexible circuit board are positioned on the same horizontal plane; the sensor chip is arranged on the first circuit board in an up-down symmetrical mode through double chips, the position of the magnetic core is located on the central plane of the magnet in the magnet mounting support and is arranged in parallel with the magnet, and the second circuit board is provided with a silver contact piece; the base comprises a cavity, one end of the cavity is provided with a base clamping groove, and the other end of the cavity is provided with a sensor chip mounting position; the flexible circuit board is arranged on the cavity, the sensor chip on the first circuit board is placed in the sensor chip mounting position, and the second circuit board fixes the circuit board assembly and the base through the base clamping groove; a base round hole is formed in the outer side of the base clamping groove and used for placing a conductive spring, so that the conductive spring is in contact connection with the silver contact piece on the second circuit board; the upper cover covers the cavity of the base, and the flexible circuit board is fixed in a space formed by the upper cover and the base.
The sensor chip mounting structure is characterized in that positioning columns are arranged on two sides of the sensor chip mounting position, and the first circuit board places a sensor chip into the sensor chip mounting position through the positioning columns.
The flexible printed circuit board is characterized in that a mounting column is arranged in the cavity of the base, a through hole is formed in the position, corresponding to the mounting column, of the flexible printed circuit board, and the mounting column penetrates through the through hole to be riveted and fixed with the upper cover.
The base round hole overcoat has the protecting cover, conductive spring wears out the heavy platform round hole of protecting cover.
The magnet mounting bracket comprises a box type mounting groove, a magnet is mounted in the box type mounting groove, and one side of the box type mounting groove is connected with a U-shaped plate through a connecting rod.
The box type mounting groove is characterized in that a screw hole is formed in the bottom of the box type mounting groove, a magnet in the box type mounting groove is fixed through a stud penetrating through the screw hole, and a fixing clip is arranged at the upper end of the stud.
Advantageous effects
Since the technical scheme is used, compared with the prior art, the utility model, have following advantage and positive effect: the utility model has the characteristics of the appearance is unique, compact structure, and the assembly is dismantled simply, and the signal acquisition precision is high, and output signal is reliable and stable etc, can be used to the collection of car intelligence braking system brake pedal displacement volume.
Drawings
Fig. 1 is a schematic view of the overall arrangement of the present invention;
fig. 2 is a schematic view of the installation of the magnet and the bracket of the present invention;
fig. 3 is a schematic structural diagram of a flexible circuit board assembly according to the present invention;
fig. 4 is a schematic structural diagram of the base according to the present invention;
FIG. 5 is a schematic view of the internal structure of the present invention with the upper cover and the protecting cover removed;
fig. 6 is a schematic diagram of the sensor structure of the present invention;
fig. 7 is a schematic view of the magnet mounting bracket of the present invention;
FIG. 8 is a schematic view of the mounting of the retaining clip of the present invention;
fig. 9 is a schematic view of the mounting bracket for mounting the magnet according to the present invention;
fig. 10 is a schematic view of the installation of the pedal stroke displacement sensor of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The utility model discloses an embodiment relates to a pedal stroke displacement sensor of intelligent braking system, including sensor body and magnet installing support, the sensor body includes upper cover, base and circuit board subassembly, the circuit board subassembly includes first circuit board, second circuit board and flexible circuit board, one end of flexible circuit board is connected with first circuit board, and the other end is connected with second circuit board; the first circuit board and the flexible circuit board are positioned on the same horizontal plane; the sensor chip is arranged on the first circuit board in an up-down symmetrical mode through double chips, the position of the magnetic core is located on the central plane of the magnet in the magnet mounting support and is arranged in parallel with the magnet, and the second circuit board is provided with a silver contact piece; the base comprises a cavity, one end of the cavity is provided with a base clamping groove, and the other end of the cavity is provided with a sensor chip mounting position; the flexible circuit board is arranged on the cavity, the sensor chip on the first circuit board is placed in the sensor chip mounting position, and the second circuit board fixes the circuit board assembly and the base through the base clamping groove; a base round hole is formed in the outer side of the base clamping groove and used for placing a conductive spring, so that the conductive spring is in contact connection with the silver contact piece on the second circuit board; the upper cover covers the cavity of the base, and the flexible circuit board is fixed in a space formed by the upper cover and the base.
As shown in fig. 1-8, the sensor comprises a magnet 2, a magnet mounting bracket 3, a fixing clip 4, a circuit board a5, a flexible circuit board 6, a circuit board B7, a sensor chip 8, a base 9, an upper cover 10, a conductive spring 11 and a protective cover 12. The sensor 1 is cylindrical, and the magnetic core position of the sensor chip 8 is positioned on the central plane of the magnet 2 in the magnet mounting bracket 3 and is arranged in parallel with the magnet 2. Circuit board a5 is physically and electrically connected to circuit board B7 via flexible circuit board 6. The circuit board A5 realizes accurate positioning and installation with the base 9 through the positioning columns 13 positioned at two sides of the sensor chip installation position, so that the sensor chip can be positioned in the sensor chip installation position after the circuit board A5 is installed in place, and riveting fixation can be carried out through the base plastic columns 14 for firm fixation. The circuit board B7 is positioned and fixed with the base 9 through the base card slot 15, and the flexible circuit board 6 is placed in the cavity of the base 9 after the fixing. The upper cover 10 and the base 9 are positioned through the plastic column 16, and the plastic mounting column 16 can penetrate through a through hole in a corresponding position on the flexible circuit board 6 and then is riveted and fixed with the upper cover, so that a protection effect is achieved. The conductive spring 11 is put into the round hole 17 of the base and contacts with the silver contact sheet 18 of the circuit board B7 to realize electrical communication, and in order to ensure the reliability of connection, the outer surface of the conductive spring 11 is plated with silver. The protecting cover 12 is fixed with the base through the base buckle 19, one end of the conductive spring 11 penetrates through a sinking platform round hole of the protecting cover to pre-press the conductive spring 11, and therefore the positioning and protecting effects are achieved. Magnet 2 be the cuboid, magnet installing support 3 includes box type mounting groove 20, the magnet 2 of two cuboids of installation in box type mounting groove 20, one side of box type mounting groove 20 is connected with the U-shaped board through the connecting rod. In order to prevent that two cuboid magnets from popping out because of the repulsion effect, can realize the fixed of two magnets through fixing clip 4, when fixing, box type mounting groove 20 bottom is equipped with the screw, and fixing clip 4 has double-screw bolt 21, double-screw bolt 21 passes and can fix fixing clip on two cuboid magnets through the bolt behind the screw, realizes the fixed effect in location.
In the embodiment, the sensor chips on the circuit board A are symmetrically arranged up and down by adopting double chips, so that functional redundancy can be realized, and the requirement of functional safety ASIL-D can be met.
As shown in fig. 9 to 10, when the pedal stroke displacement sensor according to the present embodiment is mounted, the U-shaped plate 22 of the magnet mounting bracket 3 is engaged with the annular groove 23 of the magnet stopper, so as to fix the position of the magnet stopper relative to the magnet stopper 24 in the axial direction. The box-shaped mounting groove of the magnet mounting bracket 3 penetrates through the round hole of the HCU to realize the circumferential positioning effect of the magnet mounting bracket 3. The braking force input push rod 26, the magnet limiting block 24 and the brake master cylinder piston 27 move along the axial direction, the magnet 2, the magnet mounting bracket 3 and the fixing clip 4 can be driven to move together, the relative positions of the magnet 2 and the magnetic core of the sensor chip 8 in the sensor body 1 of the pedal stroke displacement sensor are changed, and therefore the purpose of detection can be achieved. The sensor body 1 of the pedal stroke displacement sensor can be positioned and fixed through riveting points of the HCU valve body 28.
The magnetism of two cuboid magnets is arranged in the same direction, the magnets are magnetized in the length direction, when the magnets move, the space magnetic field of the sensing point of the sensor chip changes, the sensor chip detects the size of the magnetic fields By and Bz in the Y direction and the Z direction, the change of the magnetic field is converted through an arctangent function Atan (By/Bz), and the displacement of the push rod (the magnets) is indirectly obtained. The pedal travel displacement signal collected by the sensor can be output to the controller through the conductive spring for decoding calculation, and the controller sends out related execution instructions according to the road condition and the collected signal to control the servo motor.
The utility model has the characteristics of the appearance is unique, compact structure, and the assembly is dismantled simply, and the signal collection precision is high, and output signal is reliable and stable etc, can be used to the collection of car intelligent braking system brake pedal displacement volume.
Claims (6)
1. A pedal stroke displacement sensor of an intelligent braking system comprises a sensor body and a magnet mounting bracket, and is characterized in that the sensor body comprises an upper cover, a base and a circuit board assembly, the circuit board assembly comprises a first circuit board, a second circuit board and a flexible circuit board, one end of the flexible circuit board is connected with the first circuit board, and the other end of the flexible circuit board is connected with the second circuit board; the first circuit board and the flexible circuit board are positioned on the same horizontal plane; the sensor chip is arranged on the first circuit board in an up-down symmetrical mode through double chips, the position of the magnetic core is located on the central plane of the magnet in the magnet mounting support and is arranged in parallel with the magnet, and the second circuit board is provided with a silver contact piece; the base comprises a cavity, one end of the cavity is provided with a base clamping groove, and the other end of the cavity is provided with a sensor chip mounting position; the flexible circuit board is arranged on the cavity, the sensor chip on the first circuit board is placed in the sensor chip mounting position, and the second circuit board fixes the circuit board assembly and the base through the base clamping groove; a base round hole is formed in the outer side of the base clamping groove and used for placing a conductive spring, so that the conductive spring is in contact connection with the silver contact piece on the second circuit board; the upper cover covers the cavity of the base, and the flexible circuit board is fixed in a space formed by the upper cover and the base.
2. The pedal stroke displacement sensor of the intelligent braking system as claimed in claim 1, wherein positioning posts are disposed on two sides of the sensor chip mounting location, and the first circuit board places the sensor chip into the sensor chip mounting location through the positioning posts.
3. The pedal stroke displacement sensor of the intelligent brake system as claimed in claim 1, wherein a mounting post is disposed in the cavity of the base, a through hole is formed in the flexible circuit board at a position corresponding to the mounting post, and the mounting post penetrates through the through hole and is riveted with the upper cover.
4. The pedal stroke displacement sensor according to claim 1, wherein the base circular hole is externally covered with a protective cover, and the conductive spring penetrates through a sinking platform circular hole of the protective cover.
5. The pedal stroke displacement sensor according to claim 1, wherein the magnet mounting bracket includes a box-shaped mounting groove in which the magnet is mounted, and one side of the box-shaped mounting groove is connected to a U-shaped plate through a link.
6. The pedal stroke displacement sensor according to claim 5, wherein a screw hole is formed at the bottom of the box-shaped mounting groove, the magnet in the box-shaped mounting groove is fixed by a stud penetrating through the screw hole, and a fixing clip is provided at the upper end of the stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921224609.1U CN210416543U (en) | 2019-07-31 | 2019-07-31 | Pedal travel displacement sensor of intelligent braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921224609.1U CN210416543U (en) | 2019-07-31 | 2019-07-31 | Pedal travel displacement sensor of intelligent braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210416543U true CN210416543U (en) | 2020-04-28 |
Family
ID=70383835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921224609.1U Active CN210416543U (en) | 2019-07-31 | 2019-07-31 | Pedal travel displacement sensor of intelligent braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210416543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117657089A (en) * | 2024-01-30 | 2024-03-08 | 千顾汽车科技(江苏)有限公司 | Pedal displacement sensor assembly structure of electric control brake system |
-
2019
- 2019-07-31 CN CN201921224609.1U patent/CN210416543U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117657089A (en) * | 2024-01-30 | 2024-03-08 | 千顾汽车科技(江苏)有限公司 | Pedal displacement sensor assembly structure of electric control brake system |
| CN117657089B (en) * | 2024-01-30 | 2024-05-03 | 千顾汽车科技(江苏)有限公司 | Pedal displacement sensor assembly structure of electric control brake system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9446745B2 (en) | Integrated rotary and linear sensor | |
| KR102167468B1 (en) | Braking device having a travel sensor for integrated motor vehicle brake systems | |
| CN210416543U (en) | Pedal travel displacement sensor of intelligent braking system | |
| JP2001206256A (en) | Force sensing fifth wheel aggregate and force sensor thereof | |
| CN103813947A (en) | Switch assembly and system | |
| CN103366999B (en) | A kind of car horn pressing force control device, method and automobile | |
| CN104914547A (en) | Novel voice coil motor lens driving device | |
| CN211280812U (en) | Sensor for brake lamp | |
| CN112896312A (en) | High-precision sensor | |
| CN111729961B (en) | Intelligent pneumatic stamping equipment suitable for metal parts | |
| CN114435319A (en) | Novel detect footboard position device | |
| CN212871083U (en) | Linear displacement sensor and brake booster and electric automobile using same | |
| CN210416540U (en) | Motor angle sensor and system of intelligence brake | |
| CN211478628U (en) | Notebook computer shell magnetism detection device | |
| CN214420550U (en) | High-precision sensor | |
| CN204731471U (en) | A kind of lens driver of novel voice coil motor | |
| CN216101822U (en) | Forklift combination switch with built-in horn switch function | |
| CN220430123U (en) | Linear control pedal structure | |
| CN117657089B (en) | Pedal displacement sensor assembly structure of electric control brake system | |
| CN217304018U (en) | Integrated vibration and force detection device | |
| CN201149523Y (en) | Vibration transducer | |
| CN204808428U (en) | Vehicle event data recorder with buzzing function | |
| CN214775823U (en) | Brake pedal assembly for electric vehicle | |
| CA2160171A1 (en) | Servo acceleration sensor and a method for computing an acceleration of the vehicle along a slope | |
| CN213518584U (en) | Nearly electric high pressure response alarm device of engineering vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240322 Address after: No. 268, Yuwangshan Road, Daqi Street, Beilun District, Ningbo, Zhejiang 315825 Patentee after: NINGBO TUOPU GROUP Co.,Ltd. Country or region after: China Address before: 201203 Shanghai Pudong New Area China (Shanghai) Free Trade Pilot Area, No. 88 Darwin Road, 3 buildings, 5 floors Patentee before: SHANGHAI TUOWEI AUTOMOTIVE TECHNOLOGY CO.,LTD. Country or region before: China |