Liquid metal circuit switch device

A liquid metal, circuit switch technology, applied in the direction of electric switches, circuits, electrical components, etc., can solve accidents, easy to fall children, electrical equipment dumping and other problems, to achieve the effect of avoiding fire

Inactive Publication Date: 2014-08-06
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a liquid metal circuit switch device to overcome the problem in the prior art that medical personnel cannot rush to the scene to participate in the treatment of elderly people with limited mobility and children who are prone to falls, and at the same time solve the problem of electrical devices The problem of accidents due to dumping

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0032] figure 1 It is a schematic diagram of the upright path of the liquid metal circuit switch device according to the embodiment of the present invention; wherein, the gas filled in the atmosphere layer 1 is air; the metal of the liquid metal layer 2 is selected from gallium indium alloy or gallium indium tin alloy, and its composition is : 75.5Ga-24.5In (melting point 16°C), 62.5Ga-21.5In-16Sn (melting point 11°C). At room temperature, the alloy remains liquid and has good fluidity and electrical conductivity. The material of the airtight cavity 3 is ceramic, and the material of the electrode 4 is copper. In this embodiment, the warning unit is an electric lamp 5; the wireless transmission unit is a bluetooth device 6; In contact with liquid metal, and liquid metal is an electric conductor, and its resistivity is much smaller than that of a general resistance device, such as the lamp 5 in this embodiment, so the current direction at this time is from the first node a thro...

Embodiment 2

[0035] According to the device structure of Example 1, only the metal of the liquid metal layer is replaced with: gallium metal (melting point 29.76 ° C), or a low melting point formed of gallium, indium, tin, zinc, silver, bismuth, cadmium, copper, iron, etc. Binary or multiple alloys, such as: 48.8In-31.6Bi-19.6Sn (melting point 59°C), 61.7In-30.8Bi-7.5Cd (melting point 62°C), 44In-42Sn-14Cd (melting point 93°C), 90Sn-7.5 Bi-2Ag-0.5Cu (melting point 193°C), etc. In this way, the liquid metal circuit switch device can meet the requirements of different working temperatures, and the diversity of the device can be improved.

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PUM

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Abstract

The invention provides a liquid metal circuit switch device which comprises an atmosphere layer, a liquid metal layer, a sealed cavity, two electrodes, a warning unit and a wireless transmission unit. The liquid metal layer and the atmosphere layer are located in the sealed cavity. The atmosphere layer is located above the liquid metal layer. The two electrodes are fixed on two opposite inner side walls of the sealed cavity. The liquid level of the liquid metal layer is in contact with the two electrodes. The warning unit is serially connected with the wireless transmission unit and then parallelly connected with the two electrodes in the sealed cavity and the liquid metal layer. The liquid metal circuit switch device has the advantages that the liquid metal circuit switch device can be mounted on an electric appliance and on a medical care instrument; when the electric appliance falls, a user can arrive on the site timely to avoid accidents such as a fire; when an aged person or a child who is inconvenient in moving falls, medical staff can arrive on the site for rescuing.

Description

technical field [0001] The invention relates to a switch device, in particular to a liquid metal circuit switch device. Background technique [0002] At present, in the scientific research of microelectronic devices, liquid metals are widely used as electrode materials due to their conductivity, low melting point, high boiling point and fluidity, and more and more people pay attention to their efficacy and application. Therefore, how to utilize these characteristics of liquid metal skillfully and more effectively is particularly important. When the temperature is from room temperature to 2400 degrees Celsius, liquid metal gallium is in a liquid state, and its conductivity is excellent, so it can be used in liquid switching devices. [0003] In people's production and life, the short circuit phenomenon caused by the dumping of electrical devices (such as electric heaters, electric irons, etc.) can easily cause accidents such as fires and electric injuries, endangering the pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H35/18
Inventor 李皇德梅生福刘静
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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