| 摘要 |
A junction box according to the present invention comprises: multiple diodes arranged on a lower case; multiple bus bars which are respectively located on the diodes to be electrically connected to each other via the diodes; and multiple heat sinks which are arranged between the corresponding diodes and the lower case and receive heat generated in the diodes to emit the heat to the outside. Each of the heat sinks includes: a base part which is in contact with the diodes; a heat radiating part which is formed on a first longitudinal end of the base; and an elastic part which is formed on a second longitudinal end of the base. The lower case includes multiple indented parts formed therein to contain the diodes, and the heat sinks are arranged between the bottom surfaces of the indented parts and the diodes. Particularly, each of the heat sinks includes the first longitudinal end which is classified into the center part and both side parts spaced apart from the center part, wherein the center part is bent downward to act as the heat radiating part. Each of the indented parts of the lower case has a through hole formed therein, and the heat radiating part of the heat sink is exposed to the outside via the through hole. Furthermore, the elastic part, which is formed on the second longitudinal end of the base part of the heat sink, includes a downward curve part which is extended from the base part and a plane part which is extended from the downward curve part so that the base part and the plane part can have a difference in a certain height. In the indented part areas of the lower case, a protrusion part having a certain height is formed in the area corresponding to an opposite longitudinal end to the second longitudinal end of the base part of the heat sink so that space having a certain height can be formed between the base part of the heat sink and the indented part of the lower case. |
