| 摘要 |
<p>A regulation group for driving local distribution network supply electric pump used for distributing liquid comprises a main body (3) and a circuit board (27) for controlling electric pump; the main body (3) has a chamber (3A) for passing liquid; magnets (31A, 29A) which are respectively one part of a pressure converter and a flow converter are disposed in the chamber; the circuit board is accommodated in a box (7) applied in the main body (3); and a relatively thin air gap (33) is arranged between the box (7) and the main body (3).</p> |
