CN201307319Y - Hall anti-theft alarm - Google Patents
Hall anti-theft alarm Download PDFInfo
- Publication number
- CN201307319Y CN201307319Y CNU2008201232186U CN200820123218U CN201307319Y CN 201307319 Y CN201307319 Y CN 201307319Y CN U2008201232186 U CNU2008201232186 U CN U2008201232186U CN 200820123218 U CN200820123218 U CN 200820123218U CN 201307319 Y CN201307319 Y CN 201307319Y
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- CN
- China
- Prior art keywords
- permanent magnet
- circuit board
- shell
- alarm
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000000694 effects Effects 0.000 abstract description 5
- 241000282414 Homo sapiens Species 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 11
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 241000282461 Canis lupus Species 0.000 description 1
- 230000036626 alertness Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to a Hall anti-theft alarm, which comprises a shell, a spring, a permanent magnet, a switch magnet clip, a switching countersunk head screw, a circuit board, a Hall sensor, an electric wire and an electric bell. One end of the spring is fixedly arranged at the top in the shell; the other end thereof is connected with the permanent magnet; the U-shaped switch magnet clip penetrates through the through hole at the bottom of the shell from the inside of the shell and is connected with the switching countersunk head screw; the opening of the switch magnet clip and the permanent magnet are arranged on the identical axial line and are not connected with each other; the circuit board is fixedly arranged in the shell and in parallel to the spring; the Hall sensor is fixedly arranged on the circuit board and in parallel to the permanent magnet; one end of the electric wire is connected with the circuit board; and the other end thereof penetrates through the through hole of the shell and is connected with the electric bell outside the shell. The utility model prevents the false alarming due to environmental changes, natural phenomena and activities irrelevant to human beings. When the alarm is not used, the operation of the alarm can be stopped through the operating process, thereby preventing the false alarming.
Description
Technical field
The utility model relates to a kind of Hall burglar alarm, belongs to electromechanical integration technology area.
Background technology
Along with the develop rapidly of economic level and science and technology, people are more and more higher to antitheft requirement.The theft protection problem not only relates to important unit and key departments such as the power system, radio and television, communication system, state key historical relic unit, bank, warehouse, department store of Party and government offices, military installations, country, also relates to the property indoor and outdoor of each family.
Antitheft main and effective means are that alarm is installed, but the result of use of present many alarms and not fully up to expectations.Such as video monitoring system, its alarm principle is based on video mobile detection function.So-called video mobile detection function is caught up with present image piece image relatively exactly, changes and just assert have the people to commit theft, and report to the police immediately.But the variation of image not necessarily people causes, the variation of light in the visual field, as turn on light and turn off the light, sunrise sunset, and the variation of scenery shake as outdoor branch, aerial floating thing etc. can cause the variation of image, in case the appearance of this type of phenomenon must cause the false-alarm of supervisory system.Another kind of alarm, as car alarm, sound to high-decibel is extremely responsive, but the sound of this high-decibel might not come from the contact to car body, such as thundering, nature and incoherent human activity such as set off firecrackers can produce the sound of high-decibel, as people are known, listen set off firecrackers and thunder in also can " listen to frog sound a slice ".The harm that false-alarm is the most serious is to cause " wolf has come " effect, allows the people produce decline in alertness, loses the trust to alarm, finally makes it to become ornaments.
Summary of the invention
The utility model is intended to design a kind of Hall burglar alarm based on vibration, and the false-alarm of avoiding environmental change, spontaneous phenomenon and human irrelevant activity to cause can be installed on the door and window or in the automobile, is used for indoor antitheft and automobile burglar.
Parts of the present utility model comprise housing, circuit board, Hall element, spring, permanent magnet, switching magnet folder, switch sunk screw, electric wire and electric bell.
Spring one end is fixed in the case top, and the other end connects permanent magnet; U type switching magnet folder is connected with the switch sunk screw from the through hole of enclosure interior by housing bottom, and switching magnet folder opening part and permanent magnet are on the same axis, and do not connect mutually, but the degree of depth of switching magnet folder is consistent with the length of permanent magnet; Circuit board is fixed on the position parallel with spring in the housing, and Hall element is fixed on position parallel with permanent magnet on the circuit board; Electric wire one end is connected with circuit board, and the through hole that the other end passes housing links to each other with the electric bell of outside.In addition, U type switching magnet folder is installed on the switch sunk screw, and the length of switch sunk screw double-screw bolt should be consistent with permanent magnet length.
The course of work: when alarm work, be transmitted on the spring by housing, amplify the displacement that drives permanent magnet by the vibration of spring when vibration takes place in the outside; At this moment, the Hall element that is in parallel position with permanent magnet is experienced the displacement of permanent magnet, and with this displacement situation sensing on the circuit board, the oscillating region of surpass setting gives the alarm to electric bell by the electric current that electric wire spreads out of setting through the circuit on the circuit board; If when not needing alarm work, press switch sunk screw pull switch magnet and clip to the position of permanent magnet, to be cut off by the switching magnet folder in the middle of permanent magnet and the Hall element, even this moment, big again vibration took place in the outside, Hall element does not receive signal yet.Thereby avoided the alarm condition under the off working state effectively.
Beneficial effect: use vibration principle to carry out the warning of alarm, avoid in other alarms because environmental change, spontaneous phenomenon and the human false-alarm that acoustooptical phenomenon caused that irrelevant activity produced, when not using alarm, can stop the work of alarm by the course of work, avoid the false-alarm that is produced.
Description of drawings
Fig. 1 is a kind of synoptic diagram of example of Hall alarm.
Wherein, 1-housing, 2-circuit board, 3-Hall element, 4-spring, 5-permanent magnet, 6-switching magnet folder, 7-switch sunk screw, 8-electric wire, 9-electric bell.
Embodiment
Fig. 1 has shown a kind of synoptic diagram of example of Hall alarm.
Parts of the present utility model comprise housing 1, circuit board 2, Hall element 3, spring 4, permanent magnet 5, switching magnet folder 6, switch sunk screw 7, electric wire 8 and electric bell 9.
Spring 4 one ends are fixed in housing 1 top, and the other end connects permanent magnet 5; U type switching magnet folder 6 is connected with switch sunk screw 7 from housing 1 inner through hole by housing 1 bottom, switching magnet presss from both sides 6 opening parts and permanent magnet 5 is on the same axis, and do not connect mutually, but the degree of depth of switching magnet folder 6 is consistent with the length of permanent magnet 5; Circuit board 2 is fixed in the housing position parallel with spring 4, and Hall element 3 is fixed on the circuit board 2 position parallel with permanent magnet 5; Electric wire 8 one ends are connected with circuit board 2, and the through hole that the other end passes housing 1 links to each other with the electric bell 9 of outside; In addition, U type switching magnet folder 6 is installed on the switch sunk screw 7, and the length of switch sunk screw 7 double-screw bolts should be consistent with permanent magnet 5 length.
When alarm work, be transmitted on the spring 4 by housing 1 when vibration takes place in the outside, amplify the displacement that drives permanent magnet 5 by the vibration of spring 4; At this moment, the Hall element 3 that is in parallel position with permanent magnet 5 is experienced the displacement of permanent magnet 5, and this displacement situation sensing given on the circuit board 2, surpass the oscillating region of setting and give the alarm to electric bell 9 through the circuit on the circuit board 2 spreads out of setting by electric wire 8 electric current.If when not needing alarm work, press the position of switch sunk screw 7 pull switch magnetic catches 6 to permanent magnet 5, to press from both sides 6 by switching magnet in the middle of permanent magnet 5 and the Hall element 3 and cut off, even the big again vibration of outside generation this moment, Hall element 3 does not receive signal yet.Thereby avoided the alarm condition under the off working state effectively.
Above embodiment comprises but does not all represent the technical solution of the utility model that every any local modification of carrying out is equal to replacement, all will be considered as within the utility model protection domain under spirit of the present utility model and principle.
Claims (3)
1. Hall burglar alarm, comprise housing (1), circuit board (2), Hall element (3), spring (4), permanent magnet (5), switching magnet folder (6), switch sunk screw (7), electric wire (8) and electric bell (9), it is characterized in that: spring (4) one ends are fixed in housing (1) top, and the other end connects permanent magnet (5); U type switching magnet folder (6) is connected with switch sunk screw (7) from the inner through hole by housing (1) bottom of housing (1), and switching magnet folder (6) opening part and permanent magnet (5) are on the same axis, do not connect mutually; Circuit board (2) is fixed in the housing (1) and the parallel position of spring (4), and Hall element (3) is fixed on the circuit board (1) and the parallel position of permanent magnet (1); Electric wire (8) one ends are connected with circuit board (2), and the through hole that the other end passes housing (1) links to each other with the electric bell (9) of outside.
2. a kind of Hall burglar alarm according to claim 1 is characterized in that: the degree of depth of switching magnet folder (6) is consistent with the length of permanent magnet (5).
3. a kind of Hall burglar alarm according to claim 1 is characterized in that: the length of switch sunk screw (7) double-screw bolt is consistent with permanent magnet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201232186U CN201307319Y (en) | 2008-10-22 | 2008-10-22 | Hall anti-theft alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201232186U CN201307319Y (en) | 2008-10-22 | 2008-10-22 | Hall anti-theft alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307319Y true CN201307319Y (en) | 2009-09-09 |
Family
ID=41099787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201232186U Expired - Fee Related CN201307319Y (en) | 2008-10-22 | 2008-10-22 | Hall anti-theft alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201307319Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520572A (en) * | 2011-12-27 | 2012-06-27 | 上海文广科技（集团）有限公司 | Cover opening prevention device |
| CN102147953B (en) * | 2010-02-04 | 2013-05-01 | 陈浩 | Real-time anti-theft alarm system for detecting magnetic field intensity fluctuation of Hall effect |
-
2008
- 2008-10-22 CN CNU2008201232186U patent/CN201307319Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147953B (en) * | 2010-02-04 | 2013-05-01 | 陈浩 | Real-time anti-theft alarm system for detecting magnetic field intensity fluctuation of Hall effect |
| CN102520572A (en) * | 2011-12-27 | 2012-06-27 | 上海文广科技（集团）有限公司 | Cover opening prevention device |
| CN102520572B (en) * | 2011-12-27 | 2014-03-26 | 上海文广科技（集团）有限公司 | Cover opening prevention device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20151022 |
|
| EXPY | Termination of patent right or utility model |