CN209927189U - Hall detection device capable of adjusting induction distance - Google Patents
Hall detection device capable of adjusting induction distance Download PDFInfo
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- CN209927189U CN209927189U CN201921089403.2U CN201921089403U CN209927189U CN 209927189 U CN209927189 U CN 209927189U CN 201921089403 U CN201921089403 U CN 201921089403U CN 209927189 U CN209927189 U CN 209927189U
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- 238000001514 detection method Methods 0.000 claims description 28
- 230000006698 induction Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000001939 inductive effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model relates to a hall detection device of adjustable induction distance, can include the casing and install an at least hall sensor and an at least magnetic block in the casing, hall sensor has detection face and non-detection face, the magnetic block activity sets up hall sensor's non-detection face one side, make it with distance between the non-detection face is adjustable. The utility model discloses a set up and realize its response distance adjustable with hall sensor apart from adjustable magnetic block to be favorable to using the utility model discloses a product design is diversified.
Description
Technical Field
The utility model relates to a hall detection device specifically relates to a hall detection device of adjustable response distance.
Background
At present, the sensitivity of Hall sensors is not high, the starting threshold value of the Hall sensors is generally above 10GS, and the Hall sensors are produced by manufacturers in a conventional way in a small variety. Therefore, the sensing distance of the hall sensing device formed by the hall sensor is generally not too long, and the maximum sensing distance is fixed in the case where the magnitude of the magnetic flux of the sensed object is fixed. On some equipment (such as intelligent water meters), the detected object cannot use magnetic steel with overlarge magnetic flux, and the overlarge magnetic steel can generate interaction suction with a close equipment metal shell, so that the resistance of the gear transmission of a water meter movement counter is increased, and the metering precision of the equipment is seriously influenced. This imposes a great limitation on the design of the product.
Disclosure of Invention
The utility model aims at providing a hall detection device of adjustable response distance to solve above-mentioned problem. Therefore, the utility model discloses a specific technical scheme as follows:
the Hall detection device capable of adjusting the induction distance comprises a shell, at least one Hall sensor and at least one magnetic block, wherein the Hall sensor and the at least one magnetic block are arranged in the shell, the Hall sensor is provided with a detection surface and a non-detection surface, and the magnetic block is movably arranged on one side of the non-detection surface of the Hall sensor, so that the distance between the magnetic block and the non-detection surface is adjustable.
Furthermore, the shell is internally provided with an installation groove parallel to the non-detection surface, and the magnetic block is movably arranged in the installation groove and can move along the installation groove.
Furthermore, the shell is internally provided with an installation groove vertical to the non-detection surface, and the magnetic block is movably arranged in the installation groove and can move along the installation groove.
Furthermore, the number of the Hall sensors is two, and the mounting groove is positioned on the midpoint of the two Hall sensors.
Furthermore, the number of the Hall sensors is consistent with that of the mounting grooves and corresponds to the mounting grooves one by one.
Furthermore, the Hall detection device also comprises a circuit board, the Hall sensor is welded on the front surface of the circuit board, and the magnetic block is positioned on one side of the back surface of the circuit board.
Further, the magnetic block is magnetic steel.
The utility model adopts the above technical scheme, the beneficial effect who has is: the utility model discloses a set up and realize its response distance adjustable with hall sensor apart from adjustable magnetic block to be favorable to using the utility model discloses a product design is diversified.
Drawings
To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
Fig. 1 is a schematic view of a hall sensing device with adjustable sensing distance according to a first embodiment of the present invention;
fig. 2 is a schematic diagram of a hall sensing device with adjustable sensing distance according to a second embodiment of the present invention;
fig. 3 is a schematic diagram of a hall sensing device with adjustable sensing distance according to a third embodiment of the present invention;
fig. 4 is a schematic diagram of a hall sensing device with adjustable sensing distance according to a fourth embodiment of the present invention.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings and detailed description.
First embodiment
Fig. 1 shows a hall detection device with adjustable sensing distance according to a first embodiment of the present invention. The Hall detection device comprises a shell 1, and a Hall sensor 2 and a magnetic block 3 which are arranged in the shell 1. The Hall sensor 2 is provided with a detection surface and a non-detection surface, and the magnetic block 3 is movably arranged on one side of the non-detection surface of the Hall sensor 2, so that the distance between the magnetic block and the non-detection surface is adjustable. Specifically, a mounting groove 11 parallel to the non-detection surface is formed in the housing 2, and the magnetic block 3 is movably mounted in the mounting groove 11 and can move along the mounting groove 11. The magnetic block 3 enables the Hall sensor 2 to be preset in a certain magnetic field, the polarity of the Hall sensor 3 is different from that of an object to be detected, and the size polarity of the magnetic field is changed by adjusting the distance between the magnetic block 3 and the Hall sensor 2. The magnetic field is large, the induction distance is far, and the magnetic field is small, and the induction distance is near.
In addition, the hall detection device may further include a circuit board 4. The hall sensor 2 is soldered on the front surface (the surface facing the object to be detected) of the circuit board 4, and the magnetic block 3 is located on the back surface side of the circuit board 4. This structure simplifies the installation of the hall sensor 2 and simplifies the design of the housing 1.
The magnetic block 3 may be a permanent magnet or an exciter. Preferably, the magnetic block 3 is magnetic steel.
The shape of the magnetic block 3 may be cylindrical, cubic, circular, or the like.
Second embodiment
Fig. 2 shows a hall detection device with adjustable sensing distance according to a second embodiment of the present invention. The present embodiment is different from the first embodiment in that: the mounting groove 11 is provided perpendicular to the non-detection surface of the hall sensor 2. This makes the adjustable range of the distance between the magnetic block 3 and the hall sensor 2 larger.
Third embodiment
Fig. 3 shows a third embodiment of the present invention, which is a hall sensor with adjustable sensing distance. The present embodiment is different from the second embodiment in that: the number of the hall sensors 2 of the present embodiment is 2, and the number of the mounting grooves 11 is also 2, and corresponds to the hall sensors 2 one to one. The structure enables the induction distance of the Hall sensor 2 to be independently adjusted, thereby being beneficial to diversification of product design.
It should be understood that the number of the hall sensors 2 and the mounting grooves 11 may be more than 2, depending on the actual application scenario.
Fourth embodiment
Fig. 4 shows a hall detection device with adjustable sensing distance according to a fourth embodiment of the present invention. The present embodiment is different from the third embodiment in that: the number of the mounting grooves 11 of the present embodiment is only 1, and the mounting grooves are located at the midpoint of the two hall sensors 2, that is, the magnetic block 3 is located at the equally divided position of the two hall sensors 2. This configuration ensures that the sensing distances of the two hall sensors 2 are always the same.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The Hall detection device capable of adjusting the induction distance is characterized by comprising a shell, at least one Hall sensor and at least one magnetic block, wherein the at least one Hall sensor and the at least one magnetic block are installed in the shell, the Hall sensor is provided with a detection surface and a non-detection surface, and the magnetic block is movably arranged on one side of the non-detection surface of the Hall sensor, so that the distance between the magnetic block and the non-detection surface is adjustable.
2. The hall sensing device of claim 1 wherein the housing defines a mounting slot parallel to the non-sensing surface, and the magnetic block is movably mounted in the mounting slot and is capable of moving along the mounting slot.
3. The hall sensing device of claim 1 wherein the housing defines a mounting slot perpendicular to the non-sensing surface, and the magnetic block is movably mounted in the mounting slot and is capable of moving along the mounting slot.
4. The hall sensing apparatus of claim 3 wherein the number of the hall sensors is two, and the mounting groove is located at the midpoint of the two hall sensors.
5. The hall sensing apparatus of claim 3 wherein the number of the hall sensors corresponds to the number of the mounting slots one by one.
6. The adjustable inductive distance hall sensing device of claim 1 further comprising a circuit board, wherein the hall sensor is soldered on the front side of the circuit board, and the magnetic block is located on the back side of the circuit board.
7. The hall sensing device of claim 1 wherein the magnetic block is magnetic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089403.2U CN209927189U (en) | 2019-07-12 | 2019-07-12 | Hall detection device capable of adjusting induction distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089403.2U CN209927189U (en) | 2019-07-12 | 2019-07-12 | Hall detection device capable of adjusting induction distance |
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| Publication Number | Publication Date |
|---|---|
| CN209927189U true CN209927189U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921089403.2U Active CN209927189U (en) | 2019-07-12 | 2019-07-12 | Hall detection device capable of adjusting induction distance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260936A (en) * | 2019-07-12 | 2019-09-20 | 厦门市诺特科技发展有限公司 | A kind of Hall detection apparatus of adjustable distance of reaction |
-
2019
- 2019-07-12 CN CN201921089403.2U patent/CN209927189U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260936A (en) * | 2019-07-12 | 2019-09-20 | 厦门市诺特科技发展有限公司 | A kind of Hall detection apparatus of adjustable distance of reaction |
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