CN105467335A - Detection device for magnetic pole direction of magnet - Google Patents
Detection device for magnetic pole direction of magnet Download PDFInfo
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- CN105467335A CN105467335A CN201410456581.XA CN201410456581A CN105467335A CN 105467335 A CN105467335 A CN 105467335A CN 201410456581 A CN201410456581 A CN 201410456581A CN 105467335 A CN105467335 A CN 105467335A
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- magnet
- power supply
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Abstract
The invention provides a detection device for the magnetic pole direction of a magnet. The detection device for the magnetic pole direction of the magnet is used for detecting reverse installation of the magnetic pole of a preset magnet in a plastic component. The detection device for the magnetic pole direction of the magnet comprises a power supply which is provided with a positive electrode and a negative electrode, wherein the negative electrode is grounded; a conductive magnetic which is correspondingly arranged below the preset magnet; two conductive probes of which one end is contacted with the conductive magnetic, wherein the other end of one of the conductive probes is electrically connected with the positive electrode of the power supply; a relay which is provided with a coil and two contacts, wherein one end of the coil is connected with the other end of the other conductive probe, the other end of the coil is electrically connected with the negative electrode of the power supply, and one contact is connected with the positive electrode of the power supply; and an alerter of which one end is electrically connected with the other contact and the other end is electrically connected with the negative electrode of the power supply. According to the detection device for the magnetic pole direction of the magnet, reverse installation of the preset magnet can be accurately judged and working efficiency can be enhanced.
Description
[technical field]
The present invention relates to a kind of pick-up unit, and in particular to a kind of pick-up unit of magnet poles direction.
[background technology]
At present, most of notebook computer automatically cuts out liquid crystal display or computer and enters dormant state and control mainly through a magnetic switch when upper cover closes.Generally on the plastic frame of liquid crystal display, assemble a magnet, on notebook mainboard, relevant position arranges a magnetic switch, when upper cover closes, this magnet is close to this magnetic switch, this magnetic switch detects the magnetic field of this magnet and action, thus send a control signal, make liquid crystal display closedown or computer enter dormant state.If the pole orientation of this magnet is anti-loaded, then this magnetic switch then because of cannot detect respective direction magnetic field and cannot action, thus liquid crystal display cannot be closed or make computer enter dormant state.
In notebook computer upper cover, assemble magnet mainly first puts magnet on the predeterminated position of this notebook computer upper cover according to default pole orientation, is then fixed on this notebook computer upper cover by this magnet hot melt by hot melting fixture.In prior art, detected by special messenger and check that whether this magnet is anti-loaded, namely hold the magnet of a detection magnet close to this notebook computer upper cover, judged that by the principle of " two like magnetic poles repel each other, there is a natural attraction between the sexes " whether the pole orientation of the magnet of hot melt assembling is correct.The mode of this employing manual detection, easy error in judgement, and efficiency comparison is low.
In view of this, the pick-up unit developing a kind of magnet poles direction is necessary, to solve the problem in fact.
[summary of the invention]
Therefore, the object of this invention is to provide a kind of pick-up unit of magnet poles direction, the pick-up unit in this magnet poles direction accurately can not only judge that whether magnet is anti-loaded, and improves work efficiency.
In order to achieve the above object, the pick-up unit in magnet poles direction of the present invention, whether it is anti-loaded for the pole orientation detecting the default magnet in plastic parts, and the pick-up unit in described magnet poles direction comprises:
Power supply, it has positive pole and negative pole, described minus earth;
Conducting magnetic iron, its correspondence is located at the below of described default magnet;
Two conducting probes, its one end contacts described conducting magnetic iron respectively, and the other end of one of them conducting probe is electrically connected the positive pole of described power supply;
Relay, it has coil and two contacts, and described coil one end connects the other end of another conducting probe, and the other end of described coil is electrically connected the negative pole of described power supply, and a described contact connects the positive pole of described power supply;
Alarm, its one end is electrically connected another contact, and the other end is electrically connected the negative pole of power supply.
Preferably, described conducting probe is copper probe.
Preferably, two contacts of described coil are normally closed contact.
Preferably, described alarm is hummer or light emitting diode.
Compared to prior art, the pick-up unit in magnet poles direction of the present invention, by the default magnet poles two like magnetic poles repel each other in employing conducting magnetic iron and plastic parts, there is a natural attraction between the sexes, make relay work or do not work, thus two of pilot relay contacts disconnect or close, make alarm equipment alarm, accurately can not only judge that whether default magnet is anti-loaded, and improve work efficiency.
[accompanying drawing explanation]
Fig. 1 illustrates the schematic diagram of pick-up unit one preferred embodiment one duty in magnet poles direction of the present invention.
Fig. 2 illustrates the schematic diagram of another duty of pick-up unit one preferred embodiment in magnet poles direction of the present invention.
[embodiment]
Refer to shown in Fig. 1 and Fig. 2, it depicts the schematic diagram of the schematic diagram of pick-up unit one preferred embodiment one duty in magnet poles direction of the present invention and another duty of pick-up unit one preferred embodiment in magnet poles direction of the present invention respectively.
The pick-up unit in magnet poles direction of the present invention, whether it anti-loaded for the pole orientation detecting the default magnet 20 in plastic parts 10, in the present embodiment, the point-device direction of described default magnet 20 magnetic be N pole down, upward, the pick-up unit in described magnet poles direction comprises in S pole:
Power supply 30, it has positive pole 31 and negative pole 32, described negative pole 32 ground connection;
Conducting magnetic iron 40, its correspondence is located at the below of described default magnet 20, and the N of described conducting magnetic iron 40 extremely surpasses, and S pole is down;
Two conducting probes 50, its one end contacts described conducting magnetic iron 40 respectively, and the other end of one of them conducting probe 50 is electrically connected the positive pole 31 of power supply 30, is copper probe in two conducting probes 50 described in the present embodiment;
Relay 60, it has coil 61 and two contacts 62, described coil 61 one end connects the other end of another conducting probe 50, the other end of described coil 61 is electrically connected the negative pole 32 of described power supply 30, a described contact 62 connects the positive pole 31 of described power supply 30, and wherein said two contacts 62 are normally closed contact;
Alarm 70, its one end is electrically connected another contact 62, and the other end is electrically connected the negative pole 32 of power supply 30, and described alarm 70 is hummer or light emitting diode.
Refer to shown in Fig. 1, in the present embodiment, if presetting magnet 20 pole orientation installs correct, namely N pole down, and S pole upward, the then magnetic pole two like magnetic poles repel each other of conducting magnetic iron 40 and default magnet 20, conducting probe 50 and conducting magnetic iron 40 do not depart from, and by electric current in described conducting probe 50, described relay 60 coil 61 is energized, described two contacts 62 are off state, then alarm 70 is not reported to the police.
Refer to shown in Fig. 2, in the present embodiment, install incorrect if preset magnet 20 pole orientation, namely N pole upward, down, then there is a natural attraction between the sexes for the magnetic pole of conducting magnetic iron 40 and default magnet 20, and conducting magnetic iron 40 is sucked up in S pole, conducting probe 50 and described conducting magnetic iron 40 depart from, do not have electric current to pass through in described conducting probe 50, described relay 60 coil 61 no power, described two contacts 62 are closure state, then alarm 70 is reported to the police, and reminds staff to preset the pole orientation setup error of magnet 20.
Compared to prior art, the pick-up unit in magnet poles direction of the present invention, by employing conducting magnetic iron 40 with the default magnet 20 magnetic pole two like magnetic poles repel each other in plastic parts 10, there is a natural attraction between the sexes, relay 60 is made to work or not work, thus two of pilot relay 60 contacts 62 disconnect or close, alarm 70 is reported to the police, accurately can not only judge that whether default magnet 20 is anti-loaded, and improve work efficiency.
Be pointed out that; the invention is not restricted to above-mentioned embodiment; such as; in other embodiments; the pole orientation of adjustable described conducting magnetic iron 40 and make two contacts 62 be normally opened contact etc.; any simple modification that any those skilled in the art do above-described embodiment based on technical solution of the present invention, equivalent variations and modification, all fall within the scope of protection of the present invention.
Claims (4)
1. the pick-up unit in magnet poles direction, whether it is anti-loaded for the pole orientation detecting the default magnet in plastic parts, it is characterized in that, the pick-up unit in described magnet poles direction comprises:
Power supply, it has positive pole and negative pole, described minus earth;
Conducting magnetic iron, its correspondence is located at the below of described default magnet;
Two conducting probes, its one end contacts described conducting magnetic iron respectively, and the other end of one of them conducting probe is electrically connected the positive pole of described power supply;
Relay, it has coil and two contacts, and described coil one end connects the other end of another conducting probe, and the other end of described coil is electrically connected the negative pole of described power supply, and a described contact connects the positive pole of described power supply;
Alarm, its one end is electrically connected another contact, and the other end is electrically connected the negative pole of power supply.
2. the pick-up unit in magnet poles direction according to claim 1, is characterized in that, described conducting probe is copper probe.
3. the pick-up unit in magnet poles direction according to claim 1, is characterized in that, two contacts of described coil are normally closed contact.
4. the pick-up unit in magnet poles direction according to claim 1, is characterized in that, described alarm is hummer or light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410456581.XA CN105467335A (en) | 2014-09-10 | 2014-09-10 | Detection device for magnetic pole direction of magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410456581.XA CN105467335A (en) | 2014-09-10 | 2014-09-10 | Detection device for magnetic pole direction of magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105467335A true CN105467335A (en) | 2016-04-06 |
Family
ID=55605249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410456581.XA Pending CN105467335A (en) | 2014-09-10 | 2014-09-10 | Detection device for magnetic pole direction of magnet |
Country Status (1)
| Country | Link |
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| CN (1) | CN105467335A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008325A (en) * | 2016-10-31 | 2018-05-08 | 富鼎电子科技(嘉善)有限公司 | Detection device |
Citations (6)
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| CN1948978A (en) * | 2005-10-11 | 2007-04-18 | 深圳富泰宏精密工业有限公司 | Electronic device detecting appliance |
| CN201051136Y (en) * | 2006-12-13 | 2008-04-23 | 中国科学院高能物理研究所 | A magnet polarity recognition device |
| JP2010257908A (en) * | 2009-04-28 | 2010-11-11 | Hosiden Corp | Proximity detector |
| CN102162840A (en) * | 2010-12-09 | 2011-08-24 | 苏州新区科兴威尔电子有限公司 | Device for testing polarity of magnet |
| CN103308556A (en) * | 2012-03-13 | 2013-09-18 | 汉达精密电子(昆山)有限公司 | Automatic detection device for neglected loading of magnet and magnetic pole direction |
| CN204154885U (en) * | 2014-09-10 | 2015-02-11 | 汉达精密电子(昆山)有限公司 | The pick-up unit in magnet poles direction |
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2014
- 2014-09-10 CN CN201410456581.XA patent/CN105467335A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1948978A (en) * | 2005-10-11 | 2007-04-18 | 深圳富泰宏精密工业有限公司 | Electronic device detecting appliance |
| CN201051136Y (en) * | 2006-12-13 | 2008-04-23 | 中国科学院高能物理研究所 | A magnet polarity recognition device |
| JP2010257908A (en) * | 2009-04-28 | 2010-11-11 | Hosiden Corp | Proximity detector |
| CN102162840A (en) * | 2010-12-09 | 2011-08-24 | 苏州新区科兴威尔电子有限公司 | Device for testing polarity of magnet |
| CN103308556A (en) * | 2012-03-13 | 2013-09-18 | 汉达精密电子(昆山)有限公司 | Automatic detection device for neglected loading of magnet and magnetic pole direction |
| CN204154885U (en) * | 2014-09-10 | 2015-02-11 | 汉达精密电子(昆山)有限公司 | The pick-up unit in magnet poles direction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008325A (en) * | 2016-10-31 | 2018-05-08 | 富鼎电子科技(嘉善)有限公司 | Detection device |
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Application publication date: 20160406 |
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| RJ01 | Rejection of invention patent application after publication |