CN101832785B - Regulatable Hall effect sensor - Google Patents
Regulatable Hall effect sensor Download PDFInfo
- Publication number
- CN101832785B CN101832785B CN2010101450074A CN201010145007A CN101832785B CN 101832785 B CN101832785 B CN 101832785B CN 2010101450074 A CN2010101450074 A CN 2010101450074A CN 201010145007 A CN201010145007 A CN 201010145007A CN 101832785 B CN101832785 B CN 101832785B
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- magnetic steel
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- steel sleeve
- hall effect
- effect sensor
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Abstract
The invention relates to a regulatable Hall effect sensor which is used for distance detection, speed detection, angle detection and rotating speed detection, and is particularly applied to the fields of automotive cam and crankshaft speed/position detection, speedometers used in automobiles and industries, and the like. The regulatable Hall effect sensor comprises a lead wire set, a printed-circuit board and a Hall element, wherein, the lead wire set and the Hall element are respectively fixed on the printed-circuit board, and also are provided with magnetic steel sleeves and magnetic steel; the magnetic steel is arranged in the magnetic steel sleeve, is made of permanent magnet materials, and is provided with external screw threads; the magnetic steel sleeve is made of nonmagnetic materials, and is provided with internal screw threads; the external screw threads are matched with the internal screw threads; the magnetic steel sleeve is fixedly connected on the printed-circuit board; and the lower bottom surface of the magnetic steel sleeve is connected with the Hall element.
Description
Technical field
The present invention relates to a kind of regulatable Hall effect sensor, is a kind of regulatable Hall effect sensor that is used for distance detecting, speed detection, angular detection, rotating speed detection.Specifically be applied to automobile cam and crankshaft speed/position probing, fields such as automobile and industrial velometer.
Background technology
Hall effect sensor is to utilize Hall element to the changes of magnetic field of its present position and produce signal.The external magnetic type that existing hall effect sensor generally is, in the position at hall effect sensor place magnetic patch is not installed, and is gone out to be provided with magnetic patch with its mechanical hook-up that relatively moves corresponding; Thereby present hall effect sensor generally all will attach the magnetic stripe of a powder metallurgy material when selling, and installs and receives certain restriction, and antijamming capability is relatively poor; The interference of dust greasy dirt; Cause the detection signal out of true, occur misoperation easily, the against shock weak effect.And the hall effect sensor of present built-in magnet steel also has it significantly not enough, and for example " a kind of proximity Hall switch " of patent ZL02112326.8 provides a kind of internal magnetization proximity Hall switch; Comprise two magnetic patch and a Hall element; Magnetic patch is arranged at the both sides of Hall element on the contrary by magnetic, and Hall element and magnetic patch are encapsulated in same housing Inner Front End, and the housing antetheca is non-magnetic conduction substance; The another kind of implementation of this patent is to utilize two Hall elements; Back-to-back mode is provided with sensitive surface, respectively towards forward and two Hall elements backwards, when magnetic conductor from housing the place ahead near or when leaving; Former and later two Hall elements are with the enhancing of sensing magnetic field respectively or weaken, and form the differential way of output thus.Yet this kind design will add one or two Hall elements with two magnet, is packaged in the valve jacket; Magnet steel and Hall element must be on fixing positions, and switching point is unadjustable, and usable range is narrow; Produce apparent slightly complicacy is installed, volume is very big, and cost also can be higher.
Summary of the invention
Technical matters to be solved by this invention provides a kind of reasonable in design, switching point is easy to adjust, volume is little, installation is simple, cost is low, applied widely regulatable Hall effect sensor.
It is this regulatable Hall effect sensor that the present invention solves the problems of the technologies described above the technical scheme that is adopted, and comprises lead wire set, printed circuit board and Hall element, and described lead wire set and Hall element are separately fixed on the printed circuit board; Its design feature is: also be provided with magnetic steel sleeve and magnet steel, described magnet steel is installed in the magnetic steel sleeve, and described magnet steel is a permanent-magnet materials; Magnet steel is provided with external thread; Described magnetic steel sleeve is non-magnetic conduction class material, in magnetic steel sleeve, is provided with internal thread, and described external thread and internal thread are complementary; Described magnetic steel sleeve is fixedly connected on the printed circuit board, and the magnetic steel sleeve bottom surface links to each other with Hall element.
The upper surface of magnet steel of the present invention is provided with groove.
Magnetic steel sleeve of the present invention is a copper material.
The present invention also is provided with light emitting diode, and described light emitting diode is arranged on the printed circuit board.
The present invention also is provided with valve jacket, and described valve jacket is arranged on the outside of whole device.
Valve jacket of the present invention is a copper material.
Valve jacket of the present invention is for being plastic material.
The present invention compares with prior art and has the following advantages and effect:
1, the magnet steel of screw thread cylindricality screws in the magnetic steel sleeve of six cylindricalitys and built-in screw thread; And the bottom surface of magnetic steel sleeve is cured to printed circuit board; It is very stable that magnet steel and magnetic steel sleeve can become; Hall element is directly welded on the printed circuit board, guarantees the stability of whole sensor, can strengthen the against shock performance of sensor.
2, screw in the inner distance of magnetic steel sleeve through regulating magnet steel, just can regulate the switching point of sensor, easy to use, make the scope of application of sensor more extensive.
3, owing to the invention belongs to built-in magnet steel, utilize external metallization can change this principle of magnetic field magnetic line distribution through Hall element near screw thread cylindricality magnet steel, the present invention both can directly detect magnet, can directly detect magnetic conduction metalloid object again.
4, simple in structure, simple and convenient assembly, and adopt unique screw thread cylindricality magnet steel design, the easy greatly adjusting of sensing switch point.During use, can add valve jacket according to actual request for utilization and perhaps connect indicating devices such as light emitting diode, can effectively prevent greasy dirt, external contaminations such as rainwater, reliability is high.
Description of drawings
Fig. 1 is a decomposition texture synoptic diagram of the present invention;
Fig. 2 is another decomposing schematic representation of the present invention;
Fig. 3 is the structural representation of valve jacket.
Embodiment
Below in conjunction with embodiment the present invention is done further detailed description, following examples are to explanation of the present invention and the present invention is not limited to following examples.
Embodiment:
As shown in Figure 1, present embodiment is made up of lead wire set 3, printed circuit board 5, Hall element 4, magnetic steel sleeve 1, magnet steel 2, and magnet steel 2 is columniform permanent magnet; Outside surface at magnet steel 2 is provided with external thread; Upper surface at magnet steel 2 is provided with groove 2-1, and magnetic steel sleeve 1 is a hollow for not having the copper of magnetic, magnetic steel sleeve 1; The part of hollow is provided with internal thread, and the external thread of internal thread and magnet steel 2 cooperatively interacts.Magnet steel 2 is installed in the magnetic steel sleeve 1, and groove 2-1 up.Magnetic steel sleeve 1, lead wire set 3 and Hall element 4 all are welded on the printed circuit board 5, the bottom surface 1-2 of magnetic steel sleeve 1 and Hall element 4 each other near.
As a kind of concrete application form; Referring to Fig. 2,3; Also be provided with valve jacket 6, light emitting diode 7, copper valve jacket 6 is arranged on the outside, and valve jacket 6 is provided with mounting hole 6-1 and diode holes 6-2; Mounting hole 6-1 is used for printed circuit board 5 is positioned, and light emitting diode 7 exposes through diode holes 6-2.
Concrete production stage of the present invention is:
1, Hall element 4 is welded to an end of printed circuit board 5;
2, lead wire set 3 is welded on the above-mentioned printed circuit board 5;
3, the magnet steel 2 with the screw thread cylindricality is screwed in by the upper bottom surface 1-1 of no groove one side from the magnetic steel sleeve 1 of six cylindricalitys;
4, the magnetic steel sleeve 1 that abovementioned steps is obtained is welded on the printed circuit board 5 that step 2 obtains, and makes its bottom surface 1-2 be close to above-mentioned Hall element 4;
5, the printed circuit board 5 that step 4 is obtained inserts in the copper shell 6;
6, in the epoxy resin implantation step 5 ready copper shells with an amount of molten;
7, the products solidifying that with program control baking oven step 6 is obtained;
8, the product that step 7 is obtained carries out following process.
As the concrete application form of another kind, valve jacket 6 of the present invention also can be made of plastics.
In addition, need to prove, the specific embodiment described in this instructions, its zero, the shape of parts, institute's title of being named etc. can be different.Allly conceive equivalence or the simple change that described structure, characteristic and principle are done, include in the protection domain of patent of the present invention according to patent of the present invention.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; Only otherwise depart from structure of the present invention or surmount the defined scope of these claims, all should belong to protection scope of the present invention.
Claims (7)
1. a regulatable Hall effect sensor comprises lead wire set, printed circuit board and Hall element, and described lead wire set and Hall element are separately fixed on the printed circuit board; It is characterized in that: also be provided with magnetic steel sleeve and magnet steel, described magnet steel is installed in the magnetic steel sleeve, and described magnet steel is a permanent-magnet materials; Magnet steel is provided with external thread; Described magnetic steel sleeve is non-magnetic conduction class material, in magnetic steel sleeve, is provided with internal thread, and described external thread and internal thread are complementary; Described magnetic steel sleeve is fixedly connected on the printed circuit board, and the magnetic steel sleeve bottom surface links to each other with Hall element.
2. regulatable Hall effect sensor according to claim 1 is characterized in that: the upper surface of described magnet steel is provided with groove.
3. regulatable Hall effect sensor according to claim 1 is characterized in that: described magnetic steel sleeve is a copper material.
4. according to claim 1,2,3 each described regulatable Hall effect sensors, it is characterized in that: also be provided with light emitting diode, described light emitting diode is arranged on the printed circuit board.
5. regulatable Hall effect sensor according to claim 4 is characterized in that: also be provided with valve jacket, described valve jacket is arranged on the outside of whole device.
6. regulatable Hall effect sensor according to claim 5 is characterized in that: described valve jacket is a copper material.
7. regulatable Hall effect sensor according to claim 5 is characterized in that: described valve jacket is a plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101450074A CN101832785B (en) | 2010-04-12 | 2010-04-12 | Regulatable Hall effect sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101450074A CN101832785B (en) | 2010-04-12 | 2010-04-12 | Regulatable Hall effect sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101832785A CN101832785A (en) | 2010-09-15 |
| CN101832785B true CN101832785B (en) | 2012-05-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101450074A Expired - Fee Related CN101832785B (en) | 2010-04-12 | 2010-04-12 | Regulatable Hall effect sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN101832785B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654510B (en) * | 2012-05-11 | 2013-10-16 | 江苏茶花电气有限公司 | Vehicle speed sensor used for automobile collision-preventing systems |
| CN103512653B (en) * | 2012-06-29 | 2016-12-21 | 新昌县冠阳技术开发有限公司 | A kind of device of the light logic gates measuring reflection light |
| CN104002335A (en) * | 2014-05-30 | 2014-08-27 | 舟山市丹尼士电器有限公司 | Heating shaver |
| CN104646281B (en) * | 2015-02-10 | 2016-08-24 | 上海理工大学 | Vibrosieve |
| CN106323238A (en) * | 2015-06-26 | 2017-01-11 | 浙江奇剑工具有限公司 | Novel magnetic level bar and manufacturing method thereof |
| CN108562326B (en) * | 2018-01-22 | 2020-06-16 | 北京玻迅基业科技有限公司 | Rotating shaft angle and speed measuring device |
| 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 |
| CN112197804B (en) * | 2020-09-24 | 2022-07-08 | 嘉兴卓凡机械科技有限公司 | Improved sensor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87211273U (en) * | 1987-10-13 | 1988-05-18 | 胡剑秋 | High efficient magnetizing gasoline economizer |
| CN2089677U (en) * | 1991-01-31 | 1991-11-27 | 成都市川光电器厂 | Control switch of commercial electronic player |
| CN1162972C (en) * | 2002-06-28 | 2004-08-18 | 何岳明 | Proximity Hall switch |
| CN2698664Y (en) * | 2004-04-30 | 2005-05-11 | 佛山市安吉路运输科技有限公司 | Foot control position transducer for electromagnetic retarder |
| US7999538B2 (en) * | 2004-06-15 | 2011-08-16 | Asa Electronic Industry Co., Ltd. | Device and system for detecting position |
| CN1731097A (en) * | 2005-07-01 | 2006-02-08 | 孙钢 | Hall linear displacement transducer without lead |
| US20080231261A1 (en) * | 2006-04-27 | 2008-09-25 | Hirschmann Automotive Gmbh | Hall-type sensor for measuring linear movements |
| CN101419107A (en) * | 2008-11-14 | 2009-04-29 | 江苏晶石科技集团有限公司 | Pressure detecting sensor |
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2010
- 2010-04-12 CN CN2010101450074A patent/CN101832785B/en not_active Expired - Fee Related
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| CN101832785A (en) | 2010-09-15 |
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Granted publication date: 20120516 Termination date: 20140412 |