Air tightness detection device for battery bottom support

Abstract

The invention discloses an air tightness detection device for a battery bottom support. The air tightness detection device comprises a battery bottom support cavity detection area and a rivet nut detection area, wherein a plurality of detection holes are formed in the rivet nut detection area, and the detection holes in the rivet nut detection area are in one-to-one correspondence with rivet nutson a peripheral beam of the battery bottom support; each detection hole is correspondingly communicated with one sealing groove, and a vent hole is formed in the side wall of each sealing groove and communicated with the water tank on the periphery of the rivet nut detection area; a sealing ring is further laid on the rivet nut detection area, and a through hole is formed in the position, corresponding to each detection hole, of the sealing ring. The sealing ring is laid on the rivet nut detection area, the detection hole is formed in the rivet nut detection area, the detection hole is communicated with the water tank through the sealing groove, sealing between a workpiece and the detection area is achieved, leakage detection of the rivet nut on the workpiece is achieved, bubbles generatedin the ventilation opening can be visually seen through the external water tank, and therefore, which rivet nut has leakage can be accurately identified.

Description

technical field [0001] The invention relates to an air tightness detection device for a battery base. Background technique [0002] During the air-tightness testing process of the existing battery bottom bracket, air leakage is detected at the weld seam by inflating the sealed cavity formed between it and the detection area, but the blind riveting on the battery bottom bracket cannot be detected Whether there is a problem of air leakage in the nut, and the existing rivet nut leak detection tool has low recognizability of the leak detection effect, is not intuitive enough, and is easy to misjudge. Contents of the invention [0003] Purpose of the invention: The present invention aims at the problem that the air tightness detection device of the battery bottom bracket in the prior art cannot detect whether the blind rivet nut on the battery bottom bracket is leaking during the air tightness detection process, and provides a battery bottom bracket. Air tightness testing devi...

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: The present invention aims at the problem that the air tightness detection device of the battery bottom bracket in the prior art cannot detect whether the blind rivet nut on the battery bottom bracket is leaking during the air tightness detection process, and provides a battery bottom bracket. Air tightness detection device

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