Flasher relays are used extensively in automobile industries
and these are developed in many forms. New modern vehicles are requiring these
relays in very broader range for their effective operation purposes. Talking
more about the application of this device we can say that these are designed
with an aim to control the flash rate of vehicle directional indicators.
Regular interruption is done in electric current in the indicator circuit. There
are different kinds of flasher relays
and these usually ranges from electro mechanical flashers and electronic
flashers to thermal and LED flashers. For commercial uses vehicles such as
trucks and trailers, LED flashers are now available with the market. In this
article, our discussion point is various types of flasher relays available
within market and their manufacturing and working procedure.
flasher relays |
For negative and positive ground
vehicles, electro mechanical flashers are made non polarized because they are
most suitable in condition. We know if a device withstand external and internal
influencing factors then it is said to be best in worst of the condition and
this is all possible in such relays. There remain insensitive to load and flash
rate frequency also remains constant despite change in temperature, system
load, voltage variation and mounting location. If we start talking about
electronic flashers, then we find that these are load sensitive for example in
case of a bulb failure, its flash rate directly become twice of its initial
value to indicate an outage. The lasting time of above two stated relays is
longer than thermal flasher relays. Thermal flasher relays are mainly used for
the vehicles prior to the decade of 80s and 90s because in those vehicles only
thermal flashers are employed for their configuration. These devices are
employed for application in a vehicle based on the need and pin configuration
set up and defined there. Before supplying these units to vehicles one must see
that flasher units are compatible with the electric system of concerned
vehicle.
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