A gearbox and its cylinder-through connector

Abstract

The invention discloses a gearbox and a cylinder penetrating connector thereof. The cylinder penetrating connector includes a cylindrical shell fixed on the gearbox and multiple connecting terminals arranged in the cylindrical shell; the middle part of the cylindrical shell is provided with a porous table; the connecting terminals are inserted in the porous table, one ends of the connecting terminals are located in the gearbox, and the other ends of the connecting terminals are located outside of the gearbox; the middle pars of the connecting terminals are provided with terminal annular bosses, so that oil liquid creeping to the bottom surfaces of the terminal annular bosses can be stopped to continuously move toward the top ends of the terminal annular bosses; the cylinder penetrating connector also includes a compaction part; and the compaction part presses the terminal annular bosses to tightly press sealing gaskets, so that the bottom surfaces of the terminal annular bosses can bein tight contact with the top surfaces of the sealing gaskets, and the stopped oil liquid can be prevented from leaking from the axial clearances of the bottom surfaces of the annular bosses and the top surfaces of the sealing gaskets. Therefore, the creeping path of the oil liquid can be effectively blocked; and risks of the oil liquid at the internal of the gearbox to leak to the outside along the connecting terminals can be eliminated, so that better sealing performance can be achieved.

Description

technical field [0001] The invention relates to the field of electrical connectors for gearboxes, in particular to a cylinder-through connector for gearboxes. Background technique [0002] The cylinder-through connector is a commonly used electrical connector for gearboxes. One end of the cylinder-through connector is located inside the gearbox, and the other end extends out of the gearbox, so that the internal electrical components of the gearbox and the electrical components of the external control unit are connected to each other through the terminals of the cylinder-through connector. In order to prevent the oil in the gearbox from leaking outward through the end of the through-cylinder connector located inside the gearbox, it is necessary for the through-cylinder connector to have better sealing performance. [0003] In the prior art, the seal at the terminal of the cylinder-through connector adopts a combination of injection molding and potting. However, due to the di...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the seal at the terminal of the cylinder-through connector adopts a combination of injection molding and potting. However, due to the different materials of the terminal and the plastic, under the impact of high temperature, vibration and other harsh environments in the gearbox, the gap between the two There will be gaps due to different expansion coefficients, and the sealing performance is often not ideal

In addition, the combination of injection molding and glue filling increases the complexity of injection molding and glue filling processes in the manufacturing process of cylinder-through connectors, and also increases the cost.

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