VOICE COILS, PICKUP COILS, FILM MOULDS, SQUARE WIRE, TINSEL WIRE, CHEMICAL & PRODUCTS, CLEAN HEATING SYSTEM /GOTO

Advantage of Square Wire

Increase in the Volumetric Occupancy Ratio and skin effect

Advantage of Square Wire
An increase in the volumetric occupancy ratio means that the self resonance of the wound coil decreases. Compared to round wire, both ribbon and square wire have a 27% higher voumetric occupancy ratio.
 The tendency for current to flow round the surface of a wire at high frequencies is known as the skin effect, and compared with a round wire of same size, the square wire is greatly superior.

*E.g. A 1.0mmø round wire has circumference of 3.14mm. In comparision to this, a square wire of size 1.0 ihas 4 sides of 1mm so a total of 4mm thus 1.27 times superior. Compared with a ribbon wire of 1.0mm x 2.0mm ( total measurement of 4 sides = 6mm ), a square wire has a total measurement of 8mm ( 2pcs of 1mm square wire )

 

Greater heat Dissipation

Greater heat Dissipation

Greater heat Dissipation

As can be clearly seen from the wire cross sections below, there are many gaps between the windings in a round wire coil, resulting in large heat retention. Compared to this the square wire coil has very few gaps, meaning that it has excellent heat dissipation properties.

COMPERISON WITH ROUND WIRE

Compared with a coil wound with the same size of round wire, a square wire coil has a 15-20% lower DCR, resulting in a power increase. A lower DCR also results in less heat being produced, meaning that less energy is required, a factor that has obvious environmental benefits in areas such as combatting global warming etc.


When the same DCR as a round wire coil is required, a smaller size square wire should be used. For example, compared with a round wire of 0.45mm a square wire of size 0.40m x 0.40mm gives the same DCR, meaning that both a decrease in the size of the coil and surrounding parts is possible, resulting in a decrease in size and cost of the whole set.

COMPERISON WITH ROUND WIRE

COMPERISON WITH ROUND WIRE

COMPERISON WITH ROUND WIRE

Decreasing at 33℃ in temperature of the coil with the same number of T.

Decreasing at 27℃ even if the number of turns increase 100.(Resistance is an approximate value).

COMPERISON WITH ROUND WIRE