Reliable easy-to-maintain economic junction box

Abstract

The invention discloses a reliable easy-to-maintain economic junction box, which comprises a cover, a box body sealing circle, a base, bus bar clips, terminals, diode clips, diodes, a bottom plate, cable sealing circles, sealing pressing blocks, wire pressing blocks and cables, wherein the box body sealing circle is placed in an annular groove at the top part of the base; the edge of the cover isinserted in the annular groove to squeeze the box body sealing circle; a joint mechanism inactive part arranged on the edge of the cover and a joint mechanism active part arranged on the outer wall ofthe annular groove in the base form a joint mechanism; the joint mechanism active parts simultaneously block the box body sealing circle in the annular groove; multiple interference sealing exists among the base, the cables, the cable sealing circles, the sealing pressing blocks and the wire pressing blocks; and warping bosses are arranged on the base or the bottom plate or the terminals below the diode clips and / or the bus bar clips. A more simplified box body structure, higher reliability, better cable waterproof sealing performance and higher-efficiency diode maintenance and mounting can be realized.

Description

technical field [0001] The invention relates to the field of junction box structure design, in particular to a junction box structure that is reliable, easy to maintain and economical. Background technique [0002] The seal between the cover and the base of the traditional junction box is sealed by pressing the rubber box sealing ring between the cover and the base. The rubber box sealing ring is installed in the tank of the cover, and is only stuck by the stopper next to the tank so as not to fall off. The stopper has limited fixing effect on the sealing ring of the box body, and the sealing ring of the box body is easy to fall off; the thickness of the cover where the sealing ring of the box body is located is small, and the strength is low; the rubber box sealing ring needs to be almost as wide as the tank body to Stuck in the tank, the stopper squeezes the rubber box sealing ring, which is easy to deform and age, which affects the life; the rubber box sealing ring also ...

AI Technical Summary

Problems solved by technology

The traditional junction box does not have a particularly good design scheme for the waterproof sealing of the cable inlet. There are many unreasonable structures in the structure, and the waterproof effect is generally not good.

[0004] The diode in the traditional junction box is generally fixedly connected to the terminal piece through the cage clip, and a supporting part is needed to assist in the assembly of the diode, resulting in a more complicated structure and higher cost

Due to the small space in the junction box and the strong clamping force of the cage clips, when the diode needs to be maintained and replaced, it is often very difficult to disassemble and assemble the diode, and workers often need to spend a lot of time and effort to remove the old one. The diode and replace it with a new diode, and the clip is easy to be damaged when the diode is disassembled, and it is difficult to ensure whether the diode is installed in place when installing the diode.

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