Sealed wiring terminal and compressor

Abstract

The invention discloses a sealed wiring terminal and a compressor. The sealed wiring terminal comprises an end cover which has a wiring hole, and a binding post, wherein the hole wall of the wiring hole extends to the inner side of the end cover, the outer wall surface of the hole wall of the wiring hole is in a step shape, the hole wall of the wiring hole forms a plurality of segments with different thicknesses through the step surface, and the wall thicknesses of the plurality of sections are decreased progressively along the extension direction of the hole wall of the wiring hole; and the binding post penetrates through the wiring hole and is limited in the wiring hole through insulating glass. According to the sealed wiring terminal, the steps are arranged at the bottom part of the wiring hole, so that the thickness of the hole wall is increased, the length of the wiring hole is not greatly changed, the deformation resistance of the wiring hole is effectively improved, and the reliability of the terminal is improved.

Description

technical field [0001] The invention is used in the field of connection terminals, and in particular relates to a sealed connection terminal and a compressor. Background technique [0002] Sealed terminals are widely used in compressor components and are indispensable key components in compressors. At present, conventional terminal blocks include end caps, terminal posts, and glass fusion parts that seal the end caps and terminal posts, such as figure 1 As shown, the outer wall of the wiring hole of the end cover is a straight line structure and is perpendicular to the inner surface of the end cover. [0003] As the core wiring part of the compressor, the sealed terminal is in repeated high and low pressure conditions for a long time, and glass, as a brittle material, is very sensitive to external tensile stress. Defects such as cracks and chipping in the glass may even lead to safety accidents such as airtight sealing failure and steel needle flying out. [0004] Due to ...

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Problems solved by technology

[0003] As the core wiring part of the compressor, the sealed terminal is in repeated high and low pressure conditions for a long time, and glass, as a brittle material, is very sensitive to external tensile stress. Defects such as cracks and chipping in the glass may even lead to safety accidents such as airtight sealing failure and steel needle flying out

[0004] Due to the small wall thickness of the wiring hole in the existing end cover structure, when the internal pressure deformation of the terminal bulges, the compression resistance of the wiring hole is insufficient and large deformation occurs at the same time, which causes serious damage to the glass inside the wiring hole, and eventually airtight failure or Safety issues such as steel needle flying out

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