| 摘要 |
<p>A protective cover (9) used for a thermal printing head having a radiating plate (l) in which a plurality of fixing holes (l0) are formed, a head base plate (2) and a circuit board (3), the radiating plate (l) being provided with a groove (la), by which an upper surface of the radiating plate (l) is divided into first and second regions (lb, lc), the head base plate (2) being mounted with a heating resistor (4) and a driving IC (5) covered with a resin coat layer (6), the circuit board (3) being provided with through holes (ll), the protective cover (9) being further provided with a body (9a) having an upper surface and a lower surface opposite to the upper surface, and a plurality of pin members (l2) extending from the lower surface, each of the pin members (l2) being provided with a slit (l2a), whereby each pin member (l2) can be press-fitted easily in one corresponding fixing hole (l0) out of the above fixing holes (l0).</p> |
