A piezoelectric wireless doorbell signal transmitter
A signal transmitter, wireless doorbell technology, applied in electromagnetic audible signals, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve problems such as broken, achieve strong environmental adaptability, power generation Good effect and high reliability effect
A signal transmitter, wireless doorbell technology, applied in electromagnetic audible signals, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve problems such as broken, achieve strong environmental adaptability, power generation Good effect and high reliability effect
CN107332464BActive Publication Date: 2019-01-08ZHEJIANG NORMAL UNIVERSITY
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[0014] The end of the main wall f1 of the housing f is connected with an end cover a by screws. The end cover a is composed of a cover plate a2 with a through hole and a positioning ring a1. The outer ring of the positioning ring a1 is installed close to the inner wall of the main wall f1 of the housing f. ; There is a ring platform f2 on the main wall f1, and a group of piezoelectric vibrators g are installed on it through the pressure ring d and screws. The piezoelectric vibrator g is a straight structure when installed. G2 is bonded, the piezoelectric film g2 is installed close to the ring platform; the main body h1 of the bottom plate h is equipped with a circuit board m through screws and washers l, and an energy conversion circuit and a signal transmission system are arranged on it. The main body h1 is equipped with a sleeve The barrel h2 and the sleeve h2 are installed with a guide shaft i, on which a return spring j, a small rigid block k, a flexible paddle c and a butt...
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The invention relates to a piezoelectric wireless doorbell signal emitter and belongs to the technical field of a daily electronic product. The end portion of a main wall of a housing is connected with an end cover through a screw. The end cover is formed by a cover plate with a through hole and locating rings. The locating rings are arranged close to the inner walls of the main wall of the housing. The main wall is provided with a ring bench. The ring bench is provided with a group of piezoelectric vibrators through press rings and screws. The piezoelectric vibrators are in a flat and straight structure before installation; and each piezoelectric vibrator is formed by a substrate and a piezoelectric sheet, which are glued together, wherein the piezoelectric sheet is arranged close to the ring bench. A main body of a bottom plate is provided with a circuit board through screws and washers, and the circuit board is provided with an energy conversion circuit and a signal emission system. The main body is provided with a sleeve. The sleeve is internally provided with a guiding shaft. The guiding shaft is provided with a reset spring, a small rigid block, a flexible dial sheet and a button in sequence from right to left. The flexible dial sheet is a truncated-cone-shaped housing having an opening; the diameter of the small rigid block is smaller than the diameter of a big end of the button; and a small end of the button passes through the through hole of the end cover.
Description
technical field [0001] The invention belongs to the technical field of daily-use electronic products, and in particular relates to a piezoelectric wireless doorbell signal transmitter. Background technique [0002] Doorbells can be seen everywhere in daily life, and it can sound to remind the owner of a visitor. Common doorbells can be divided into wired doorbells and wireless doorbells, but wired doorbell transmitters and receivers are connected by wires, wiring is cumbersome, installation is inconvenient, and it is likely to need to cut walls, etc., so they have gradually faded out of the market in recent years. Wireless doorbells Gradually become the future development trend. The current wireless doorbell is a doorbell that is often seen in daily life. Most of its signal transmitters are powered by 12V batteries. Their energy is limited, and batteries need to be replaced frequently, which wastes manpower and material resources. pollute. In order to replace traditional ...
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Patent Timeline
08 Jan 2019
Publication
CN107332464B
- IPC
- H02N2/18; G08B3/10
- CPC
- G08B3/10; H02N2/186
- Inventors
- 汪彬; 陈日成