| 摘要 |
PURPOSE:To reduce noise caused by resonance, by integrally moulding a terminal box including a terminal block with an engineering plastic material. CONSTITUTION:At the bottom of a terminal box body 10 integrally injection- moulded are a terminal block electrically connecting an internal distribution cable of a main motor 36 with its external distribution cable, a fan, and another terminal block 24 electrically connecting the internal distribution cable drawn from a fan housing 38 enclosing and holding a fan-driving motor with its external distribution cable. As the material of this terminal box 10 an engineering plastic is used. At the bottom of the box body 10 a grilled reinforcing rib 14 is provided, around the side part of which a flange 12 is formed. By integrally moulding the terminal box 10 in this way with the engineering plastic material, the noise caused by resonance can be reduced.
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