CN210416540U - Motor angle sensor and system of intelligence brake - Google Patents
Motor angle sensor and system of intelligence brake Download PDFInfo
- Publication number
- CN210416540U CN210416540U CN201921225874.1U CN201921225874U CN210416540U CN 210416540 U CN210416540 U CN 210416540U CN 201921225874 U CN201921225874 U CN 201921225874U CN 210416540 U CN210416540 U CN 210416540U
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- circuit board
- base
- motor angle
- cavity
- angle sensor
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052709 silver Inorganic materials 0.000 claims abstract description 11
- 239000004332 silver Substances 0.000 claims abstract description 11
- 230000002633 protecting effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 230000006698 induction Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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Abstract
The utility model relates to a motor angle sensor of intelligent brake, wherein, one end of a flexible circuit board is connected with a first circuit board, the other end is connected with a second circuit board, and the included angle between the first circuit board and the flexible circuit board is 45 degrees; the first circuit board is provided with a sensor chip, and the second circuit board is provided with a silver contact sheet; the base comprises a cavity, one end of the cavity is provided with a 45-degree inclined plane, and the other end of the cavity is provided with a base clamping groove; the flexible circuit board is arranged on the cavity, the first circuit board is arranged on a 45-degree inclined plane, 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 base and fixes the circuit board assembly in a space formed by the upper cover and 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 motor angle signal acquisition technical field especially relates to a motor angle sensor and system of intelligence brake.
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 a motor angle sensor and system of intelligence brake has compact structure and assembles simple advantage of dismantlement.
The utility model provides a technical scheme that its technical problem adopted is: the motor angle sensor for the intelligent brake comprises an upper cover, a base and a circuit board assembly, wherein 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, the other end of the flexible circuit board is connected with the second circuit board, and an included angle between the first circuit board and the flexible circuit board is 45 degrees; the first circuit board is provided with a sensor chip, 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 45-degree inclined plane, and the other end of the cavity is provided with a base clamping groove; the flexible circuit board is arranged on the cavity, the first circuit board is arranged on a 45-degree inclined plane, 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 base, and the circuit board assembly is fixed in a space formed by the upper cover and the base.
And positioning columns are arranged on two sides of the 45-degree inclined plane, and the first circuit board is positioned and installed 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 outer surface of the upper cover is also provided with a semi-cylindrical boss for mounting and positioning.
The utility model provides a technical scheme that its technical problem adopted is: the motor angle sensing system of the intelligent brake comprises the motor angle sensor and the magnetic ring, wherein the magnetic ring is injected on a hollow sleeve of a motor rotor, and the motor angle sensor is arranged in a valve body of a motor, so that a sensor chip and the magnetic ring form an included angle of 45 degrees.
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, arrange that the angle is changeable, the assembly is dismantled simply, the collection signal precision is high and output signal is reliable and stable etc, can be used to car intelligent braking system's motor angle signal acquisition.
Drawings
Fig. 1 is a schematic view of the overall arrangement of the present invention;
FIG. 2 is a schematic view of the present invention with the base removed;
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 removed;
FIG. 6 is a schematic structural view of the present invention;
fig. 7 is a schematic view of the hollow sleeve of the motor rotor according to the present invention;
fig. 8 is a schematic view of the magnetic ring of the present invention;
FIG. 9 is a schematic view of the assembly position and the assembly manner of the structure of the present invention;
FIG. 10 is a schematic view of the structure of the present invention;
fig. 11 is a schematic circuit diagram 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 a first embodiment relates to a motor angle sensor of intelligence brake, including upper cover, base and circuit board subassembly, the circuit board subassembly includes first circuit board, second circuit board and flexible circuit board, the one end of flexible circuit board is connected with first circuit board, and the other end is connected with the second circuit board, the contained angle between first circuit board and the flexible circuit board is 45 degrees, and the contained angle between second circuit and the flexible circuit board is 90 degrees; the first circuit board is provided with a sensor chip, 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 45-degree inclined plane, and the other end of the cavity is provided with a base clamping groove; the flexible circuit board is arranged on the cavity, the first circuit board is arranged on a 45-degree inclined plane, 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 base, and the circuit board assembly is fixed in a space formed by the upper cover and the base.
As shown in fig. 1-6, the sensor comprises an upper cover 3, a conductive spring 4, a circuit board A5, a flexible circuit board 6, a circuit board B7, a sensor chip 8, a base 9, and a protective cover 10. The motor angle sensor 1 is overall in an oval strip shape, and the sensor chip 8 and the magnetic ring 2 are arranged at an included angle of 45 degrees. The circuit board A5 and the circuit board B7 are in physical connection and circuit communication through the flexible circuit board 6. The circuit board A5 is accurately positioned and installed with the base 9 through the positioning columns 17 on the two sides of the 45-degree inclined plane 16 of the base 9, the 45-degree inclined plane 16 of the base is used for supporting and fixing, the 45-degree included angle arrangement of the sensor chip 8 and the magnetic ring 2 is met, the circuit board B7 is positioned and fixed with the base 9 through the base clamping groove 12, and then the circuit board B7 and the base 9 are placed together in the cavity of the base 9. The upper cover 3 and the base 9 are positioned through two plastic mounting columns 14, and the plastic mounting columns can penetrate through holes in corresponding positions on the flexible circuit board and then are riveted and fixed with the upper cover, so that a protective effect is achieved. The conductive spring 4 is placed in the base round hole 13 and is in contact with the silver contact piece 11 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 4 is plated with silver. The protecting cover 10 is fixed with the base 9 through the base buckle 15, one end of the conductive spring 4 penetrates through a sunk circular hole of the protecting cover 10 to pre-press the conductive spring 4, so that the positioning and protecting effects are realized, and the reliable and stable contact between the conductive spring and the silver contact piece is ensured.
The circuit board a in this embodiment adopts a dual-core chip design, as shown in fig. 11, and outputs two sets of SIN signal 24 and COS signal 25 to implement functional redundancy, in which the power supply and the reference power supply are completely and independently distributed, and the signals are output after being differentiated, so as to meet the requirements of functional safety ASIL-D.
The utility model discloses a second embodiment still relates to a motor angle sensing system of intelligence brake, motor angle sensor and magnetic ring in the first embodiment, the magnetic ring is moulded plastics to electric motor rotor's hollow sleeve on, make in the valve body of motor angle sensor packing into the motor sensor chip with the magnetic ring is 45 degrees contained angles and arranges.
As shown in fig. 7-10, the magnetic ring 2 is injection molded onto the motor rotor hollow sleeve 20. Wherein, there are 5 archs 19 on the position of moulding plastics of motor rotor hollow sleeve 20, these 5 archs 19 can mutually support with 5 recesses 21 of magnetic ring 2 internal surface for can realize fixed and locking loose effect after moulding plastics. The other end of the motor rotor hollow sleeve 20 is tightly matched with the motor rotor 23, the motor position angle sensor 1 is arranged at the corresponding position of the valve body, the semi-cylindrical boss 18 on the outer surface of the upper cover plays a role in positioning, and the position of the motor angle sensor is fixed through the two riveting points 22 to prevent the motor angle sensor from loosening.
The motor angle sensor is based on a magnetic induction principle, a magnetic ring is magnetized By adopting Halbach sine, a magnetic induction sensor chip is placed on the side face of the magnetic ring and forms an included angle of 45 degrees with the axial direction of the magnetic ring, and components of a space magnetic field of an induction point of the magnetic induction sensor chip on x, y and z axes are defined as Bx, By and Bz; wherein the x axis is the radial direction of the magnetic ring, the y axis is the circle tangent direction of the magnetic ring, and the z axis is the axial direction of the magnetic ring; by is the magnetic field in the tangential direction of the circular arc of the magnetic ring, Bx ' is the component of the axial magnetic field in the installation angle direction, the installation of the sensor chip is inclined By 45 degrees, the inclination angle of the sensor is theta, then Bx ' is Bx cos (theta), the magnetic fields detected By the sensor chip are By and Bx ', when the magnetic ring rotates, the space magnetic fields By and Bx ' also rotate together, and the rotation angle of the magnetic ring can be obtained according to the formula arctan (Bx ', By). The motor angle signal that the sensor was gathered is exported through conductive spring and is carried out decoding calculation for the controller to detect the accurate angle of motor. The controller sends out corresponding instruction according to different operating modes and the motor angle that detects and carries out closed-loop control to the angle of motor thereby realizes accurate braking.
The utility model has the characteristics of the appearance is unique, compact structure, arrange that the angle is changeable, the assembly is dismantled simply, the collection signal precision is high and output signal is reliable and stable, can be used to car intelligent braking system's motor angle signal acquisition.
Claims (6)
1. A motor angle sensor of an intelligent brake comprises an upper cover, a base and a circuit board assembly, and is characterized in that 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, the other end of the flexible circuit board is connected with the second circuit board, and an included angle between the first circuit board and the flexible circuit board is 45 degrees; the first circuit board is provided with a sensor chip, 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 45-degree inclined plane, and the other end of the cavity is provided with a base clamping groove; the flexible circuit board is arranged on the cavity, the first circuit board is arranged on a 45-degree inclined plane, 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 base, and the circuit board assembly is fixed in a space formed by the upper cover and the base.
2. The motor angle sensor of intelligence brake of claim 1, characterized in that, 45 degree inclined plane's both sides are equipped with the reference column, first circuit board carries out location installation through the reference column.
3. The motor angle sensor of an intelligent brake of claim 1, wherein a mounting post is arranged 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 motor angle sensor of intelligence brake of claim 1, characterized in that, the base round hole overcoat has the protecting cover, electrically conductive spring wears out the heavy platform round hole of protecting cover.
5. The motor angle sensor of intelligent brake of claim 1, wherein the outer surface of the upper cover is further provided with a semi-cylindrical boss for installation and positioning.
6. A motor angle sensing system of an intelligent brake, characterized by comprising the motor angle sensor and a magnetic ring as claimed in any one of claims 1 to 5, wherein the magnetic ring is injection-molded on a hollow sleeve of a motor rotor, and the motor angle sensor is installed in a valve body of a motor so that a sensor chip and the magnetic ring form an included angle of 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921225874.1U CN210416540U (en) | 2019-07-31 | 2019-07-31 | Motor angle sensor and system of intelligence brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921225874.1U CN210416540U (en) | 2019-07-31 | 2019-07-31 | Motor angle sensor and system of intelligence brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210416540U true CN210416540U (en) | 2020-04-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921225874.1U Active CN210416540U (en) | 2019-07-31 | 2019-07-31 | Motor angle sensor and system of intelligence brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210416540U (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 CN201921225874.1U patent/CN210416540U/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 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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 |
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| TR01 | Transfer of patent right |