Card edge connector fool-proof counterpoint method and structure

Abstract

The invention discloses a card edge connector fool-proof counterpoint method and structure. The card edge connector fool-proof counterpoint method and structure are used for inserting and matching of a card edge connector and a module card. The method includes the steps that the card edge connector is prepared firstly, the card edge connector is provided with an inserting opening allowing the module card to be inserted therein, the inserting opening is internally provided with a plurality of fool-proof protruding ribs arranged at intervals, the width of one of the fool-proof protruding ribs is made to be larger than that of the other fool-proof protruding ribs, and the fool-proof protruding rib with the larger width is in tolerance fit with the module card. According to the card edge connector fool-proof counterpoint structure, an insulation body of the card edge connector is provided with the inserting opening allowing the module card to be inserted therein, the interesting opening is internally provided with a plurality of terminals electrically making contact with the module card, and the inserting opening is further internally provided with the fool-proof protruding ribs arranged at intervals; the width of one of the fool-proof protruding ribs is made to be larger than that of the other fool-proof protruding ribs, and the fool-proof protruding rib with the larger width is in tolerance fit with the module card.

Description

technical field [0001] The invention relates to an electrical connector, in particular to a foolproof alignment method and structure of a card edge connector. Background technique [0002] In the past, card edge connectors used for inserting module cards generally have concave and convex on the module card and card edge connectors in order to prevent problems such as wrong card insertion or wrong direction when inserting cards. The corresponding fool-proof structure. In addition, in order to consider the fit tolerance of the fool-proof structure between the module card and the card edge connector, there will still be an appropriate gap in the fit between them, so that the module card can be inserted into the card edge connector smoothly and correctly. [0003] However, after the module card is inserted into the card edge connector, there will be a problem of misalignment between the leading parts of the front edge of the module card and the terminals of the card edge connec...

AI Technical Summary

Problems solved by technology

[0003] However, after the module card is inserted into the card edge connector, there will be a problem of misalignment between the leading parts of the front edge of the module card and the terminals of the card edge connector due to the above-mentioned tolerance gap, and Due to the increase in the number of fool-proof structures, the required tolerance gap must also be increased, resulting in a larger amount of possible misalignment

In the past, the pitch of each terminal of the card edge connector is relatively wide, and the allowable amount of misalignment is relatively large, so there is no way to prevent the lead parts of the module card from being aligned and contacted with each terminal; but As today's connectors of various specifications require high-frequency signals, the spacing between the terminals has been required to be 0.5mm. In this case, it is easy to cause the lead parts of the module card to gradually fail to match the terminals. Bits and contacts, which will cause problems such as the failure of normal operation after the module card is inserted

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