| 摘要 |
<p>A junction box casing comprises a bottom housing (24) and an enveloping plate (25), the bottom housing comprising a base plate (241) and a side wall (242) which extends perpendicular to the base plate and is adapted to the peripheral shape of the enveloping plate, and the side wall and the enveloping plate defining an internal space, wherein the side wall is provided with two coupling holes (243, 244) which are symmetrical with respect to a longitudinal central line (4) and extend outward perpendicular to the side wall; the two coupling holes are provided, at the outer circumferential surfaces, with external threads which spin in opposite directions relative to each other; and the base plate is provided with an opening (245) which is located on the longitudinal central line and is symmetrical with respect to the longitudinal central line. The junction box casing has a simple structure and high reliability and stability.</p> |
