CN210514353U - Vortex type gear sensor - Google Patents
Vortex type gear sensor Download PDFInfo
- Publication number
- CN210514353U CN210514353U CN201921921942.8U CN201921921942U CN210514353U CN 210514353 U CN210514353 U CN 210514353U CN 201921921942 U CN201921921942 U CN 201921921942U CN 210514353 U CN210514353 U CN 210514353U
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- Prior art keywords
- eddy current
- response piece
- pcb
- gear sensor
- induction
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- 230000006698 induction Effects 0.000 claims abstract description 29
- 239000003292 glue Substances 0.000 description 6
- KKQWHYGECTYFIA-UHFFFAOYSA-N 2,5-dichlorobiphenyl Chemical compound ClC1=CC=C(Cl)C(C=2C=CC=CC=2)=C1 KKQWHYGECTYFIA-UHFFFAOYSA-N 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to a keep off the position sensor structure, especially relate to an eddy current type keeps off position sensor. The utility model provides an eddy current type keeps off position sensor, includes the casing, installs PCB board and chip on the casing, is equipped with induction coil on PCB, is equipped with the response piece that meets with the gear level in the below of casing, and the response piece includes the dead lever, is connected with the response piece on the dead lever, and the direction of motion of response piece is corresponding with induction coil's the position of arranging. The utility model provides an eddy current type gear sensor with high output precision and resolution, stronger anti-interference capability and simple structure; the technical problems that the Hall gear sensor is limited by working conditions, accuracy and resolution are not high enough, and anti-electromagnetic interference capability is not enough in the prior art are solved.
Description
Technical Field
The utility model relates to a keep off the position sensor structure, especially relate to an eddy current type keeps off position sensor.
Background
In modern society, automobiles have become one of the first-choice transportation tools for the public. The gearbox is one of soul parts of the automobile as an indispensable part of the automobile. Speed sensors within the transmission are used to identify the speed of rotation, typically hall effect sensors, and provide speed information to the TCU to coordinate with the automatic transmission to complete the shift operation.
The TRS gear sensor is arranged on a gearbox shell and used for detecting gear information on the automatic gearbox, and the gear information comprises a P gear, an R gear, an N gear and a D gear. The existing gear sensor generally adopts a Hall gear sensor, namely, the gear is determined by the cooperation of a magnet and a Hall element. However, the inductor has some disadvantages, for example, because the magnet is used as an induction component, the processing limitation of the magnet is large, the magnet cannot be applied under certain working conditions, and meanwhile, the anti-electromagnetic interference capability of the magnet induction component is not enough.
Disclosure of Invention
The utility model provides an eddy current type gear sensor with high output precision and resolution, stronger anti-interference capability and simple structure; the technical problems that the Hall gear sensor is limited by working conditions, accuracy and resolution are not high enough, and anti-electromagnetic interference capability is not enough in the prior art are solved.
The above technical problem of the present invention is solved by the following technical solutions: the utility model provides an eddy current type keeps off position sensor, includes the casing, installs PCB board and chip on the casing, is equipped with induction coil on PCB, is equipped with the response piece that meets with the gear level in the below of casing, and the response piece includes the dead lever, is connected with the response piece on the dead lever, and the direction of motion of response piece is corresponding with induction coil's the position of arranging. The induction block is made of metal materials, an induction sheet on the induction block moves along with gear shifting operation, a coil part in the PCB is matched with the induction block and used for sensing and detecting the change of the angle of the induction sheet, the coil generates an analog signal after sensing the change of a magnetic field, and the chip converts the analog signal into a digital signal. The induction block is made of metal, can be made into any shape required, cannot be influenced by the shape of the shell, is lower in cost relative to a magnet material, and solves the limitation of magnet processing. Compared with a Hall type gear sensor, the eddy current type gear sensor has stronger anti-electromagnetic interference capability, has higher precision and higher resolution ratio, the precision can reach +/-0.03 degrees, and the resolution ratio can reach +/-0.03 degrees.
Preferably, the shell is provided with a concave cavity, a cover plate is arranged above the concave cavity, and the PCB and the chip are located in a cavity formed by the concave cavity and the cover plate. The product adopts the ultrasonic welding mode of the cover plate and the shell due to space limitation, cancels the glue filling process, has simple process, and avoids the risks of potential damage of glue to electronic components on the PCB, cracking of a glue surface and the like.
More preferably, a guide plate is provided on an outer surface of the cover plate, and the sensing piece moves along a track formed by the guide plate. The induction precision is improved, and the induction device has better output precision and resolution.
Preferably, a guide groove is formed below the shell, the induction coil is arranged in an arc shape, and the induction block is provided with a guide ring which is matched with the guide groove.
Preferably, the number of the induction sheets is two, the two induction sheets are parallel to each other, and the two induction sheets are respectively positioned on the upper surface and the lower surface of the PCB.
Therefore, the utility model discloses an eddy current type keeps off position sensor possesses following advantage: 1. the response piece only needs the metal, does not need magnet, can solve the processing limitation of magnet, and under the unable applied condition of magnet under certain operating mode, can process the realization with the metal. And the metal is lower than the magnet cost, the machining precision is higher 2, the precision of the eddy current type gear sensor is higher, the resolution ratio is higher, the precision can reach +/-0.03 degrees, and the resolution ratio can reach +/-0.03 degrees. 3. Compared with a Hall type, the eddy current type gear sensor has stronger anti-electromagnetic interference capability. 4. The product adopts the ultrasonic welding mode of the cover and the shell due to the space limitation, cancels the glue filling process, has simple process, and avoids the risks of potential damage of glue to electronic components on the PCB, cracking of a glue surface and the like.
Drawings
Fig. 1 is a front view of a magnet mounting structure of a sensor according to the present invention.
Fig. 2 is a perspective view of fig. 1.
Fig. 3 is an exploded view of fig. 1.
Fig. 4 is a front view of fig. 1 with the cover plate and sensing block removed.
Fig. 5 is a perspective view of the sensing block of fig. 1.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b):
as shown in fig. 1, 2, 3, 4 and 5, the eddy current type gear sensor comprises a housing 1, wherein the housing 1 is integrally coated. One end of the shell 1 is integrally formed with a connecting plug 6, and a sealing gasket 8 is arranged at the joint of the connecting plug 6 and the shell 1. An insert ring 5 is mounted on each side of the housing 1. The main part of the shell 1 is provided with a containing cavity, a PCB 9 and a chip are installed in the containing cavity, a pin 7 is connected to the PCB 9, the other end of the pin 7 is located in the connecting plug 6, and an arc-shaped coil is further formed on the PCB 9. After the PCB 9 and the shell 1 are assembled, the PCB is welded through holes, the PCB 9 is covered with the cover plate 2, and ultrasonic welding is carried out after the assembly is finished. A guide plate 3 is integrally formed on the outer surface of the cover plate 2, a circular arc-shaped guide groove 10 is formed at the bottom of the housing 1, and a sensing block 4 is mounted in the guide groove 10. The induction block 4 comprises a fixing rod 13, two induction sheets 11 which are parallel to each other are arranged at the upper end of the fixing rod 13, the two induction sheets 11 are connected through a connecting sheet 14, the connecting sheet 14 is fixed at the upper end part of the fixing rod 13, and the connecting sheet 14 and the two induction sheets 11 form a U-shaped body. A guide ring 12 is provided at the front side of one of the sensing pieces 11, and the shape of the guide ring 12 is the same as that of the guide groove 10. The distance between the two sensing pieces 11 is larger than the thickness of the shell 1, and the main body of the shell 1 is positioned between the two sensing pieces 11. Dead lever 13 meets with the gear level, and the motion of gear level drives dead lever 13 motion, and dead lever 13 motion drives response piece 11 and rotates, and the coil part matching design in response piece 11 and the PCB board 9 for the change of response detection response piece angle, coil produce analog signal after sensing the magnetic field change, and the chip turns into digital signal with analog signal.
Claims (6)
1. An eddy current type gear sensor comprises a shell, and is characterized in that: install PCB board and chip on the casing, be equipped with induction coil on PCB, be equipped with the response piece that meets with the gear level in the below of casing, the response piece includes the dead lever, is connected with the response piece on the dead lever, and the direction of motion of response piece is corresponding with induction coil's the position of arranging.
2. An eddy current gear sensor according to claim 1, characterized in that: the PCB and the chip are located in a cavity formed by the cavity and the cover plate.
3. An eddy current gear sensor according to claim 2, characterized in that: the outer surface of the cover plate is provided with a guide plate, and the induction sheet moves along a track formed by the guide plate.
4. An eddy current gear sensor according to claim 1, 2 or 3, characterized in that: the induction block is provided with a guide ring, and the guide ring is matched with the guide groove.
5. An eddy current gear sensor according to claim 1, 2 or 3, characterized in that: the two induction pieces are parallel to each other and are respectively positioned on the upper surface and the lower surface of the PCB.
6. An eddy current gear sensor according to claim 4, wherein: the two induction pieces are parallel to each other and are respectively positioned on the upper surface and the lower surface of the PCB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921921942.8U CN210514353U (en) | 2019-11-08 | 2019-11-08 | Vortex type gear sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921921942.8U CN210514353U (en) | 2019-11-08 | 2019-11-08 | Vortex type gear sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210514353U true CN210514353U (en) | 2020-05-12 |
Family
ID=70575061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921921942.8U Active CN210514353U (en) | 2019-11-08 | 2019-11-08 | Vortex type gear sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210514353U (en) |
-
2019
- 2019-11-08 CN CN201921921942.8U patent/CN210514353U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 318000 1st floor, building 1, No. 818, east section of Kaifa Avenue, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Zhejiang Woder Technology Group Co.,Ltd. Address before: 318000 No.1, building 1, No.818, east section of Kaifa Avenue, Jiaojiang District, Taizhou City, Zhejiang Province Patentee before: ZHEJIANG WODELL TECHNOLOGY Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A vortex type gear sensor Granted publication date: 20200512 Pledgee: Agricultural Bank of China Limited Taizhou Economic Development Zone sub branch Pledgor: Zhejiang Woder Technology Group Co.,Ltd. Registration number: Y2024330000184 |