Electric connector for circuit board

Abstract

The invention provides an electric connector for circuit board which can prevent solder or coating agent on contact arms of terminals. The housing (10) is provided with a bottom wall (11) having a bottom face that is parallel to a mount surface of a circuit board,a protrusive wall 12 rising from the bottom wall 11 and extending in an array direction; the protrusive wall is provided with a slot part (12A) which depresses from the protrusive wall and extends along the inserting and pluging direction of the connector; a terminal(20) is provided with a base (21) which is integrated with the bottom wall and kept, a contact arm part (22) which extends along the inserting and pluging direction of the connector from one end of the base part, and a connecting part (24) which is formed at the part which extends fromt he other end of the base and can be welded with the mounting face; the slot part of the protrusive wall is formed on the whole region of the protrusive wall, the bottom wall is formed in the scope corresponding to the contact arm in the direction of the connector.

Description

technical field [0001] The present invention relates to an electrical connector for a circuit board arranged on a mounting surface of a circuit board. Background technique [0002] As such an electrical connector for a circuit board, for example, the connector of Patent Document 1 is known. The connector of Patent Document 1 has a housing having a cubic shape, and terminals aligned and held by being integrally formed with the housing in the longitudinal direction of the connector (the longitudinal direction of the housing). This housing has: a bottom wall facing the mounting surface of the circuit board, a quadrangular frame-shaped peripheral wall standing upward from the peripheral portion of the bottom wall, and a connector width direction (with respect to the above-mentioned longitudinal direction of the housing). The central region protrudes upwards from the bottom wall along the lengthwise direction of the connector. A quadrilateral annular space opened upward and sur...

AI Technical Summary

Problems solved by technology

If the solder adhering to the surface of the contact arm is solidified, there is a possibility that a sufficient elastic displacement state of the contact arm cannot be sufficiently obtained.

In addition, when the molten solder on the surface of the contact arm further reaches the protruding surface of the contact portion, that is, the contact surface with the mating terminal via the gap between the contact arm portion and the inner wall surface of the groove portion of the protruding wall, there may be Poor contact with the target terminal may be caused

[0008] In addition, in order to prevent corrosion of the solder connection portion between the above-mentioned connection portion and the above-mentioned mounting surface, a coating agent such as resin may be applied to the solder connection portion. On the surface of the contact arm, there is a possibility of causing elastic displacement of the contact arm and poor contact state of the target terminal.

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