CN214585522U - Integrated Hall revolution speed sensor - Google Patents
Integrated Hall revolution speed sensor Download PDFInfo
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- CN214585522U CN214585522U CN202120742701.8U CN202120742701U CN214585522U CN 214585522 U CN214585522 U CN 214585522U CN 202120742701 U CN202120742701 U CN 202120742701U CN 214585522 U CN214585522 U CN 214585522U
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- shell
- speed sensor
- hall
- revolution speed
- circuit board
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Abstract
The utility model relates to an integral type hall revolution speed sensor, which comprises an outer shell, install PCB circuit board subassembly in the shell, fixed hall sensor chip is connected with the welded mode to PC circuit board subassembly one end, hall sensor is located the front end of shell, including copper needle group in the shell for connect PCB board and external signal receiving connector. The permanent magnet is contained in the shell and used for generating a magnetic field required by triggering the Hall sensor chip. Epoxy glue is used for water and dust prevention of the sensor in the shell in a potting mode. And a sealing ring is designed outside the shell and used for sealing during embedded installation. And a metal mounting piece is designed on the shell and used for fixedly mounting the sensor. The utility model has the advantages that: the integrated speed sensor has the advantages that the number of accessories of the integrated speed sensor is effectively reduced, the structure is simple, the manufacturing cost is reduced, the quick plug-in mounting mode is realized, the production efficiency of a user is favorably improved, the design structure is small, and the mounting space of the user is saved.
Description
Technical Field
The utility model relates to a rotational speed is measured and the speed measurement field, specific integral type hall revolution speed sensor that says so.
Background
The Hall rotation speed sensor is also called a rotation speed sensor, a wheel speed sensor and a vehicle speed sensor and is used for measuring the rotation speed and the speed of a rotating target body. The method is widely applied to the fields of automobile speed, automobile wheel speed, engine rotating speed, gearbox rotating speed measurement, machine tool rotating speed, agriculture and forestry machinery and the like. The rotating speed sensor in the prior art has high manufacturing cost; and signal output generally needs to lean on the lead-out wire output, causes the required surplus in user's design space big, and prior art sensor generally adopts split type casing design, in airtight spaces such as gearbox, measures the front end and drops easily, causes body damages such as sensor inefficacy and gearbox.
SUMMERY OF THE UTILITY MODEL
Not enough to above-mentioned prior art, the utility model provides a design of integral type hall revolution speed sensor.
The utility model provides a pair of integral type hall revolution speed sensor realizes through following technical scheme:
an integrated Hall revolution speed sensor comprises a shell and a copper pin group, wherein a PCB circuit board assembly is installed in the shell, one end of the PC circuit board assembly is fixedly connected with a Hall sensor chip in a welding mode, and the Hall sensor is positioned at the front end of the shell; the shell is internally provided with a mounting hole, the copper pin group is connected with the PCB circuit board group into a whole in a soldering tin mode through the mounting hole in the shell, and the copper pin group is used for connecting the PCB and the external signal receiving connector; a permanent magnet is arranged in the shell and used for generating a magnetic field required by triggering the Hall sensor chip; and a metal mounting part is fixed on the shell and used for fixedly mounting the sensor.
Preferably, the hall sensor chip is a back magnetic hall sensor chip.
Preferably, the PC circuit board assembly is formed by vertically welding two independent PCBs into a whole to form the conversion of the output connection direction of the sensor.
Preferably, the copper needle group is formed by injection molding 3 copper needles into a group according to the design size requirement.
Preferably, the shell is manufactured by integral injection molding, and the signal output end and the cylinder measuring front end form an angle of 90 degrees.
Preferably, the outer design of shell has the sealing washer for when embedded installation sealed, the sealing washer is installed in the shell cylinder measuring head outside, and the material is resistant oily rubber.
Preferably, still include the plastic support, the permanent magnet is installed in the plastic support through compressing tightly.
Preferably, the inner gap of the shell is sealed by epoxy glue in a potting way.
Preferably, the metal mounting piece is made of a non-magnetic metal material.
The utility model has the advantages that:
1: the number of accessories of the speed sensor (speed sensor) is effectively reduced, so that the structure is simple, and the manufacturing cost is reduced;
2: the integrated structure design is adopted, so that the product quality risk is reduced, and the service life of a user product is prolonged;
3: the signal output end is designed to be integrated with the shell, so that output wires are reduced, and the user cost is saved.
Drawings
FIG. 1 is a schematic view of the exploded structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
fig. 3 is an overall sectional view of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely by the following embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
The integrated hall sensor comprises a shell 1, wherein a PCB circuit board assembly 6 is installed in the shell 1, one end of the PCB circuit board assembly 6 is connected with a fixed hall sensor chip 5 in a welding mode, the hall sensor chip 5 is fixed at the front end of the shell 1 by using a plastic support 3, the hall sensor chip 5 is connected with a circuit board of the PCB circuit board assembly 6 in a tin soldering mode, a permanent magnet 4 is coated inside the plastic support 3, a mounting hole is formed in the shell 1, a copper pin group 7 is connected with the PCB circuit board assembly 6 in a soldering tin mode into a whole through the mounting hole in the shell 1, the copper pin assembly is formed by connecting 3 copper pins in an injection molding mode according to the designed size, one end of each copper pin is connected with the PCB circuit board assembly 6 in a welding mode, and the other end of each copper pin is connected with a matching plug-in mode by a customer. The PCB assembly is connected into mutually perpendicular PCB assemblies through 2 independent PCBs in a soldering mode, the shell comprises a metal mounting part 2, and the metal mounting part 2 is formed by processing a non-magnetic metal material. The Hall sensor chip 5 is TLE4921-5U or MLX90217 or SC9625 in model. The metal mounting piece can be made of copper, stainless steel or aluminum. The shell signal output end is designed into a quick interface to be connected with the client connector. The outer design of shell has sealing washer 8 for sealing when embedded installation, the sealing washer is installed in the shell cylinder measuring head outside
The manufacturing method of the integrated Hall sensor comprises the following steps: the shell 1 is injection moulding, metal mounting part 2 is fixed in shell 1 through moulding plastics, permanent magnet 4 is installed in plastic support 3 through compressing tightly, hall chip 5 is welded on PCB circuit board subassembly 6 through tin soldering dress pin, assembles into an organic whole with PCB circuit board subassembly 6 with plastic support 3 and permanent magnet 4 through the guide slot on the plastic support in the shell 1 of impressing, and copper needle group 7 links into an organic whole with PCB circuit board group with the mode of soldering tin through the mounting hole on the shell 1, and the inside space of shell 1 passes through the epoxy embedment and seals.
Claims (9)
1. The utility model provides an integral type hall tachometric transducer which characterized in that: the PCB circuit board assembly is installed in the shell, one end of the PCB circuit board assembly is fixedly connected with a Hall sensor chip in a welding mode, and the Hall sensor is located at the front end of the shell; the shell is internally provided with a mounting hole, the copper pin group is connected with the PCB circuit board group into a whole in a soldering tin mode through the mounting hole in the shell, and the copper pin group is used for connecting the PCB and the external signal receiving connector; a permanent magnet is arranged in the shell and used for generating a magnetic field required by triggering the Hall sensor chip; and a metal mounting part is fixed on the shell and used for fixedly mounting the sensor.
2. The integrated Hall revolution speed sensor according to claim 1, wherein the Hall sensor chip is a back magnetic Hall sensor chip.
3. The integrated Hall revolution speed sensor according to claim 1, wherein the PCB circuit board assembly is formed by vertically welding two independent PCBs into a whole to form the conversion of the output connection direction of the sensor.
4. The integrated Hall revolution speed sensor according to claim 1, wherein the copper needle set is formed by injection molding 3 copper needles into a set according to design size requirements in an injection molding mode.
5. The integrated Hall revolution speed sensor according to claim 1, wherein the housing is manufactured by integrated injection molding, a signal output end is arranged on one side of the housing, and the signal output end and the measurement front end of the cylinder of the housing form an angle of 90 degrees.
6. The integrated Hall revolution speed sensor according to claim 1, wherein a seal ring is designed outside the housing, the seal ring is installed outside the cylindrical measuring head of the housing, and the seal ring is made of oil-resistant rubber and used for sealing during embedded installation.
7. The integrated Hall revolution speed sensor according to claim 1, further comprising a plastic bracket, wherein the permanent magnet is installed in the plastic bracket by pressing.
8. The integrated Hall revolution speed sensor according to claim 1, wherein the gap inside the housing is sealed by epoxy glue.
9. The integrated Hall revolution speed sensor according to claim 1, wherein the metal mounting member is made of a non-magnetic conductive metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120742701.8U CN214585522U (en) | 2021-04-13 | 2021-04-13 | Integrated Hall revolution speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120742701.8U CN214585522U (en) | 2021-04-13 | 2021-04-13 | Integrated Hall revolution speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214585522U true CN214585522U (en) | 2021-11-02 |
Family
ID=78359394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120742701.8U Active CN214585522U (en) | 2021-04-13 | 2021-04-13 | Integrated Hall revolution speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214585522U (en) |
-
2021
- 2021-04-13 CN CN202120742701.8U patent/CN214585522U/en active Active
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