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A piezoelectric hospital call signal generator

A call signal and generator technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., can solve problems such as crushing, achieve uniform stress changes and environmental adaptability Strong, good power generation effect

Active Publication Date: 2019-03-05
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the piezoelectric wafer is a brittle material, it is easily broken due to excessive tensile stress.

Method used

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  • A piezoelectric hospital call signal generator
  • A piezoelectric hospital call signal generator
  • A piezoelectric hospital call signal generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] An upper cover a with a through hole is installed on the end of the side wall r of the housing through screws, and a circuit board c is installed on the upper cover a through a washer y and screws, and an energy conversion circuit and a signal transmission system are arranged on the circuit board c; the housing A base s is installed on the side wall r via screws, and a group of piezoelectric vibrators b are installed on the base s via a pressure plate u and screws. One end of the piezoelectric vibrator b is fixed, and the fixed ends of each piezoelectric vibrator b are separated by a partition Separated by t, the piezoelectric vibrator b is an arc-shaped structure formed by bonding the substrate b1 and the piezoelectric sheet b2. The bending radius of the substrate b1 is smaller than that of the piezoelectric sheet b2, and the piezoelectric sheet b2 is installed close to the base s. that is figure 1 In the shown front view, the piezoelectric sheet b2 is below the base p...

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PUM

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Abstract

The invention relates to a piezoelectric hospital call signal generator and belongs to the technical field of a medical electronic product. The end portion of a side wall of a housing is connected with an upper cover having a through hole. The upper cover is provided with a circuit board through washers, and the circuit board is provided with an energy conversion circuit and a signal emission system. The side wall of the housing is connected with a vibrator base. The vibrator base is equipped with a group of piezoelectric vibrators through a press plate. The piezoelectric vibrators are separated by separator plates correspondingly. Each piezoelectric vibrator is in an arc structure formed by a substrate and a piezoelectric sheet, which are glued together, wherein the bending radius of the substrate is smaller than the bending radius of the piezoelectric sheet. A bottom wall of the housing is provided with a square sink groove, which is internally equipped with a guide bar. The guide bar is provided with a reset spring, a lower short rigid block, a lower flexible dial slice, a lower long rigid block, a middle short rigid block, a middle flexible dial slice, a middle long rigid block, an upper short rigid block, an upper flexible dial slice, an upper long rigid block and a button in sequence from the bottom up. A small end of the button passes through the through hole in the upper cover, and the upper surface of a big end of the button is abutted against the upper cover; and the bottom wall of the housing is connected to a sickbed.

Description

technical field [0001] The invention belongs to the technical field of medical electronic products, in particular to a piezoelectric hospital call signal generator. Background technique [0002] Pagers are divided into wired pagers and wireless pagers. The most common bedside pagers used in hospital wards are wired pagers, because the installation of wired pagers must be wired, which is time-consuming and laborious. The receiving unit must be in a fixed location. , The working mode is not flexible, the repair and maintenance costs are high, and the application is less and less. Most of the signal transmitters of current wireless pagers are powered by 12V batteries, which have limited energy and need to be replaced frequently, which wastes manpower and material resources, and if the used batteries are not disposed of properly, it is easy to cause serious environmental pollution. In order to replace traditional chemical batteries and meet the self-power supply requirements of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/18
CPCH02N2/18H02N2/186
Inventor 阚君武陈日成李熹平
Owner ZHEJIANG NORMAL UNIVERSITY
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