Rocker switches are also called rocker switches. Its structure is the same as that of the button switch, except that the button handle is changed into a ship shape. Rocker switches are used in water dispensers, treadmills, computer speakers, battery cars, motorcycles, ion TVs, coffee pots, power strips, massage machines, etc., and are mainly used in household appliances. Today, Shanghai Yongxing Electronics manufacturer will share with you how to judge the performance of the ship type switch? Let’s find out together
1) Selection of insulating plastics for ship-type switches
Available thermosetting plastics – phenolic resin (PF), polydiallyl phthalate (DAP), epoxy resin (EP) and unsaturated polyester (UP). Available thermoplastics – glass fiber reinforced PET, PBT, PCT (polyethylene terephthalate), PTT (polytrimethylene terephthalate), PA6, PA66, PA6T, PA9T, PA46, PA612, PPS, LCP, PSF (polysulfone), PEI (polyetherimide), PES (polyethersulfone), PASF (polyarylsulfone), PAE (polyarylether), etc.
For low-frequency rocker switches, mineral-filled phenolic plastics were mainly used in the past. Due to the low production efficiency, they have been replaced by new thermoplastics, specifically PA, PC, reinforced PC, and polysulfone. For ship type switches used under hot and humid conditions, use DAP data.
2) The dielectric properties of the ship type switch
The insulation resistance and dielectric strength required by the switch are high. Generally, the insulation resistance between the contacts and between the contacts and the ground should be greater than 1Ω; under the low voltage of 0.44MPa, when the test voltage is 500V, arcing and breakdown should not occur. For high-frequency ship type switches, in addition to meeting the above requirements, it is best to require small high-frequency dielectric loss and small dielectric constant.
3) Heat resistance of rocker switch
Generally, the thermal deformation temperature should be above 200°C to resist the high temperature during surface mount technology or soldering, and to withstand the heating temperature of the connector itself.
4) arc resistance of ship type switch
Guaranteed to resist damage to plastics caused by arcs generated during plug-in installation.
5) Flame retardancy of ship type switch
To prevent fires under abnormal conditions such as short circuits, and to avoid the harm of toxic gases to the human body, it is best to use halogen-free flame-retardant materials.
6) The water resistance of the ship type switch
At present, the water resistance of the ship-type switches on the market has clear indicators, which greatly enhances the safety of the switches.
The above is all the content shared by bituo. If you need micro switches, rocker switches, terminal blocks, indicator lights, buzzers and other products, please contact us.