NOVELTY - The common type junction box for a solar cell module comprising a cell panel and a frame for the cell panel, comprises a body (12) that is made of insulating material and comprises a clamping part and a containment part (16), a wiring board that is mounted in the containment part and has a connection line including switching diodes, a male connection cable (22) having an internal end and an external end, a female connection cable (24) having an internal end and an external end, plug blocks located at a longitudinal end portion of the body, and a removable junction box lid.    USE - The common type junction box is useful for a solar cell module.    ADVANTAGE - The common type junction box prevents a rise in temperature in the part of the solar cell module thus enhancing the power generation efficiency and the service life of the module, and provides efficient and low cost interconnection.    DETAILED DESCRIPTION - The common type junction box for a solar cell module comprising a cell panel and a frame for the cell panel, comprises a body (12) that is made of insulating material and comprises a clamping part and a containment part (16), a wiring board that is mounted in the containment part and has a connection line including switching diodes, a male connection cable (22) having an internal end and an external end, a female connection cable (24) having an internal end and an external end, plug blocks located at a longitudinal end portion of the body, a removable junction box lid, and an additional connection cable of which one end has a plug adjacent to and matching with the socket and of which the other end has a socket adjacent to and matching with the plug. The junction box: is adapted to form either a part of the frame or corner joints of the frame; is assembled between two adjacent cell panels that abut against each other; is adapted to be a corner joint of the frame that connects two adjacent frame sections forming an angle with each other; extends in a longitudinal direction; and has a first end portion and a second end portion in the longitudinal direction. The clamping part is adapted to clamp onto the edge of the cell panel. The internal end of the male connection cable is electrically connected to one end of the connection line, and the external end of the male connection cable has a plug located at or outside the first end portion. The internal end of the female connection cable is electrically connected to the other end of the connection line, and the external end of the female connection cable has a socket located at or outside the second end portion. The diodes are connected in series and mounted in the connection line, which has plug-in connectors disposed between adjacent diodes. The plug-in connectors are configured for the insertion of the lead lines from the cell panel. The ends of the connection line are provided with a plug-in connector that is configured for the insertion of the internal end or internal end connecting wire of the corresponding male connection cable or female connection cable and meanwhile clamping the inserted internal end or internal end connecting wire. The plug blocks are suitable to be inserted into a frame profile segment so that the junction box and the profile segment form a frame section. The external end of the corresponding male connection cable or female connection cable extends to the corresponding outer end of the frame section. The plug blocks and the body are: made of the same insulating material; and formed into one piece or formed separately and then assembled together. The insulating material is plastic or ceramic. The body has a constant outer contour shape along the longitudinal direction, and the clamping part is formed integrally with the containment part or assembled onto the containment part. The containment part has: a top wall; front and back side walls; two longitudinal end walls; a bottom wall; a vertical wall extending upward from the longitudinal centerline of the top wall of the containment part; and a horizontal wall that extends from the upper edge of the vertical wall and is perpendicular to the vertical wall. The top wall of the containment part is designed to abut against the edge of the cell panel and provided with apertures suitable for the lead lines of the cell panel to pass through. A containment space (18) is formed between the top wall and the bottom wall to accommodate the wiring board, and has an open operation opening formed on the front and back side walls and the bottom wall. The removable junction box lid seals the operation opening. The horizontal wall is parallel to the top wall of the containment part. A cell panel slot suitable for the insertion of the edge of the cell panel is defined between the top wall of the containment part and the horizontal wall of the clamping part. INDEPENDENT CLAIMS are included for:    (1) a frame used in a solar cell module; and    (2) a solar cell module.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a junction box.    Body (12)    Containment part (16)    Containment space (18)    Male connection cable (22)    Female connection cable. (24)