Antitheft door alarm self-powered device
A self-powered, anti-theft door technology, applied in electrical components, generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, etc., can solve troubles, chemical batteries deal with environmental pollution, and alarms cannot be Issue warnings and other issues at the first time to achieve the effect of high safety and reliability and improve safety and reliability
Active Publication Date: 2017-12-08
ZHEJIANG NORMAL UNIVERSITY
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Problems solved by technology
The most common theft is to choose to destroy the anti-theft door installed with the alarm and enter the house under the condition of power failure on the floor or cut off the power supply, so that the alarm will not be triggered to respond, and the alarm will not be activated due to power supply problems. The alarm is issued at the first time; and for those anti-theft doors that use batteries to provide electrical energy for the alarm, on the one hand, it needs to replace the batteries frequently, which brings unnecessary troubles, and on the other hand, it will be damaged due to waste chemical batteries. Improper use will also cause serious environmental pollution
Method used
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[0011] The left end of the self-power supply device e is installed on the boss two 202 places of the anti-theft door panel 2, and the right end is installed on the boss one 501 places of the side plate 5, and these two bosses are all passed through screws, pressing blocks 6 and pads 10 A piezoelectric vibrator 4 and a flexible beam 9 are installed; the piezoelectric vibrator 4 is formed by bonding a metal substrate 401 and a piezoelectric wafer 402; the flexible beam 9 is installed with an arc-shaped top block 3 and a mass block-m1 via screws , and the number of piezoelectric vibrators 4 on both sides of the flexible beam 9 is equal and arranged symmetrically; the upper end of the first mass block m1 is connected with the spring three k3, and the lower end is connected with the second spring k2; the lower end of the second spring k2 is connected in series with the second mass block m2 , spring one k1 and mass block three m3, and hang in the limit cylinder 7; the limit cylinder ...
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The invention relates to an antitheft door alarm self-powered device and belongs to the technical field of new energy and power generation. The left end of the self-powered device is mounted on a second boss of an antitheft door panel. The right end of the self-powered device is mounted on one of the first bosses of a side plate. Piezoelectric vibrators and flexible beams are both mounted on the two bosses. Each piezoelectric vibrator is formed by bonding a metal substrate and a piezoelectric wafer. Each flexible beam is provided with an arc-shaped top block and a first mass block. The same number of piezoelectric vibrators are installed on either side of the flexible beam and are arranged symmetrically. The upper end of the first mass block is connected with a third spring. The lower end of the first mass block is connected with a second spring. The lower end of the second spring is connected in series with a second mass block, a first spring and a third mass block, and is suspended in a stopping cylinder fixed on the panel. The panel is connected with a doorframe through a hinge. The third spring is fixed to the first boss of the panel. The hinge is composed of a hinge piece and a hinge shaft. The side plate is fixed to the panel both sides of which are provided with steel plates. The second boss of the side plate is provided with a circuit board having an alarm.
Description
technical field [0001] The invention belongs to the technical field of new energy and power generation, and specifically relates to a self-power supply device for an anti-theft door alarm, which is used for self-power supply of an anti-theft door alarm system. Background technique [0002] Today, when more and more people live in high-rise buildings, since the doors of many buildings without property management are always open, in order to ensure the safety of family property, anti-theft doors have become the last barrier for every household. According to related reports, in recent years, theft cases have been ranked first in the number of criminal cases, and burglary cases accounted for more than 60% of the entire theft cases. The most common theft is to choose to destroy the anti-theft door installed with the alarm and enter the house under the condition of power failure or cut off the power supply on the floor, so that the alarm will not be triggered to respond, and the a...
Claims
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IPC IPC(8): H02N2/18
CPCH02N2/186
Inventor 王淑云吕鹏李熹平
Owner ZHEJIANG NORMAL UNIVERSITY