Fusing switch
A technology of switching and switching action, applied in the direction of heating/cooling contact switch, etc., can solve the problems of contact burn, damage, increase of contact resistance, etc., and achieve the effect of prolonging service life, high cost and reducing volume
Inactive Publication Date: 2008-06-18
刘爱民
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Problems solved by technology
[0002] In the technical field of mechanical and electrical switches, there are many types of switches that cannot be counted, but their basic principles are nothing more than the opening and closing of mechanical contacts of two electrodes; they have common and insurmountable shortcomings: first, there is a contact between the contacts. Contact resistance; Second, the contacts are easily burned by high current, thus increasing the contact resistance and even damaging
Method used
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Experimental program
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Embodiment Construction
[0006] Use copper material to make the static and dynamic electrodes of the switch. On the static electrode, absorb solder to make a low-melting point conductive material, and use a power resistor to heat the electrode; when the switch needs to be closed, first heat the static electrode to melt the solder, and then close the switch. The moving electrode stops heating, the solder solidifies, the two electrodes are welded, and the switch is closed; when the switch needs to be turned on, the static electrode is first heated to melt the solder, then the moving electrode is turned on, the heating is stopped, the solder is solidified, and the switch is turned on.
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The invention relates to a melting switch, belonging to the manufacturing technical field of mechanical electric apparatuses switches. The invention solves the problems of overcoming damage and contact resistance of pole contact of a mechanical switch. The invention adopts a technical proposal that a low melting-point conductive substance is adhered to a mechanical contact of the pole or the low melting-point conductive substance is adopted as the contact directly. When in switching, the contact is heated firstly to melt the low melting-point conductive substance and then switching action is carried out, and finally the heating is stopped to cool the contact. Then the contact is fused into a whole after close. The invention is especially suitable for a site with big current and low requirement to the time of switching action.
Description
Technical field [0001] The invention belongs to the technical field of mechanical and electrical switch manufacturing, and relates to the manufacturing technology of high-current switches. Background technique [0002] In the technical field of mechanical and electrical switches, there are many types of switches that cannot be counted, but their basic principles are nothing more than the opening and closing of mechanical contacts of two electrodes; they have common and insurmountable shortcomings: first, there is a contact between the contacts. Contact resistance; Second, the contacts are easily burned by high current, thus increasing the contact resistance and even being damaged. Contents of the invention [0003] Purpose of the present invention: to overcome the contact resistance between the mechanical contacts of the electrodes, and to overcome the damage problem of the contacts; [0004] The technical solution provided by the present invention is: adsorb the low-melt...
Claims
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Inventor 刘爱民
Owner 刘爱民
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