Card connector

Abstract

A card connector comprises an insulative housing having a rear contact-mounting section at the rear of the cavity, a longitudinal side wall section extends forwardly from one end of the rear section at one side of the cavity, a bottom surface for mounting on a circuit board, a plurality of contacts are mounted on the rear contact-mounting section of the housing and have contact portions for engaging appropriate contacts on the memory card. The sidewalls and the bottom surface cooperatively form an interior cavity for receiving a memory card. A pair of switch contacts is mounted on the sidewall section of the housing; one of the sidewalls defines a pair of retaining recess for receiving the switch contacts. At least one switch contact defines a number of dimples for engaging with inner walls of the corresponding retaining recess.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The features of this invention which are believed to be novel are set forth with particularity in the appended claims. The invention, together with its objects and the advantages thereof, may be best understood by reference to the following description taken in conjunction with the accompanying drawings, in which like reference numerals identify like elements in the figures and in which:

FIG. 1 is an assembled perspective view of a card connector embodying the concepts of the invention;

FIG. 2 is an exploded view of the connector shown in FIG. 1;

FIG. 3 is an exploded view of a related connector;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 1-2 in greater detail, the invention is embodied in a card connector, generally designated 100, which includes a housing, generally designated 10, and a securing member, along with a plurality of contacts, generally designated 16, mounted on the housing. The housing 10 is fabricated of insulating material such as molded plastic, and the securing member is fabricated of metal such as stamped and formed sheet metal material and comprises a first securing member 301 and a second securing member 302, a first switch contact 41 and a second switch contact 42 received in the housing 10.

housing 10 comprises a body portion 11, a first receiving slot 13 and a second receiving slot 14 disposed in the body portion 11, a front wall 17 and a pair of sidewalls 12 upwardly extending from the body portion 11 combining to form an interior card-receiving cavity having an open mouth at a front receptacle area of the connector. The mouth permits insertion and removal of a memory card into and out of cavity. The first receiving slot 13 and the second receiving slot 14 symmetrically arranged in two sides of the body portion 11 define an indented concave 131, 141 respectively. In addition, the body portion 11 defines a first concave 15 and a second concave 16 adjacent to the sidewalls 12 define a first recess 110 in corresponding to the first concave 15 for receiving the first securing plate 301 and a second recess 120 in corresponding to the second concave 16 for receiving the second plate 302. The housing 10 defines a transverse opening 18 in one of the sidewalls 12, and a first anchoring recess 181 and a second anchoring recess 182 indented in an upper surface of the sidewall 12 and arranged in two sides of the opening 18. Each of the recess 181 is equipped with a laterally extending opening 183 so as to commonly form a T-shaped configuration in a top view..

Contacts 20 are mounted within a plurality of through passages of the housing. Each contact 20 includes a retention portion 23, a contacting portion for engaging with the card, a tail portion 24 generally extending downwardly from the retention portion 23, a pair of inserting portion 231 arranged two sides of the tail portion, a curved portion 22 for connecting the tail portion 24 with retention portion 23. When the contacts 20 are inserted into the housing 10, the retention portion 23 are received into the first recess 13 and the second recess 14 and the inserting portions 231 are inserted into the indented concave 131, 141 of the housing 10 for making a stable engagement between the contacts 20 and the housing 10.

The securing member comprises a first securing plate 301 and a second securing member 302. The first securing plate 301 comprises a first securing portion 3011, a first horizontal portion 3012, a first connecting portion 3013 connecting the first securing portion 3011 and the first horizontal portion 3012. The second securing plate 302 comprises a second securing portion 3021, a second horizontal portion 3022, a second connecting portion 3023 connecting the securing second portion 3021 and the horizontal second portion 3022. The first securing plate 301 is securely positioned in the first receiving slot 110 and the second securing plate 302 is securely positioned in the second receiving slot 120 and the positioning recess 170.

The switch contact comprises a first switch contact 41 received in the first anchoring recess 181 and a second switch received 42 in the second anchoring recess 182. The first switch contact 41 and the second switch contact 42 define a first base portion 410 and a second base portion 420 respectively, and a first elastic portion 411 extending from the first base portion 410 towards the receiving space and a second elastic portion 421 extending from the second base portion 420 toward the receiving space. The first elastic portion 411 is overlapped with the second elastic portion 421 in a vertical direction. The first base portion 410 and the second base portion 420 extend downwardly a locating portion 412 and a surface mount securing means 422. The locating portion 412 is defined on lateral sides of the first base portion 410 and the second base portion 412 respectively for preventing the switch contact 41 and the second switch contact 42 from rotating or sliding. The securing means 422 defines a number of barbs 4220 on two sides thereof for engaging with the first anchoring recess 181 and the second anchoring recess 182 to attain a stable engagement between the switch contacts 41, 42 and the housing 10. In addition, the securing means 422 further defines a horizontal solder portion extending through the corresponding laterally extending opening 183 during assembling for engaging with a printed circuit board. The first and second base portion 410, 420 define a plurality of deformable projection 4100 for abutting the sidewalls 12 of the housing 10 for enforcing the engaging force between the first elastic portion 411 and the second elastic portion 412.

In use, the first switch contact 41 and the second switch contact 42 are abutting against the inner walls 12 of the housing 10, the card pushes the second elastic portion 421 to engage with the first elastic portion 411, hence the electrical card connector 100 attains an operating state. For second elastic portion 421 engages with sides of the card, the phenomenon of the card sliding from the housing 10 can be avoided.

It will be understood that the invention may be embodied in other specific forms without departing from the spirit or central characteristics thereof. The present examples and embodiments, therefore, are to be considered in all respects as illustrative and not restrictive, and the invention is not to be limited to the details given herein.

While preferred embodiment in accordance with the present invention have been shown and described, equivalent modifications and changes known to persons skilled in the art according to the spirit of the present invention are considered within the scope of the present invention as defined in the appended claims.

Claims

1. A card connector comprising: a housing comprising a body portion, a front wall, at least one side wall extending from sides of the housing;a number of contacts received in the housing;a securing member attached on the housing;a switch contact fixed on the housing;wherein the switch contact is inserted into a recess of the side wall of the housing and at least one switch contact forms a plurality of dimples thereon to engage a corresponding interior wall in said recess.

2. The electrical connector as claimed in claim 1, wherein the contact comprises a base portion, a first arm portion extending from an upper portion of the contact, a second arm portion extending from a lower portion of the base portion.

3. The electrical connector as claimed in claims 1, wherein at least one securing member engages with the base portion of the contact.

4. The electrical connector as claimed in claim 3, wherein the first arm portion and the second arm portion respectively define a contacting portion with rectangular shape on a distal end thereof.

5. An electrical card connector comprising: an insulative housing defining a card receiving region on a top face thereof;a plurality of contacts disposed in the housing and defining contacting sections upwardly extending into the card receiving region;a side wall integrally extending upwardly from one side of the housing, and defining therein a recess upwardly open to an exterior, said recess being equipped with a laterally extending opening communicating with the exterior laterally;a switch contact downwardly inserted into the recess, said switch contact including a base portion with at least one dimple thereon received in the recess in an interference for reinforcement consideration, a spring contact section extending from the base portion and exposed to the exterior for engagement with another switch contact, and a securing device having a horizontal solder pad downwardly passing through the laterally extending opening during assembling until reach a position coplanar with a bottom face of the housing.

6. An electrical card connector comprising: an insulative housing defining a horizontal base with side arms extending upward on two sides thereof;first and second concaves formed in an inner side of each of said side arms and extending through said base in a vertical direction;a first securing member upwardly assembled from a bottom face of the housing and into the first concave, said first securing member including an upper horizontal portion which is dimensioned smaller, in a top view, than the first concave and spaced from an upper face of the base with a distance for receiving a card therebetween, and at least a solder pad located right below the first side arm, anda second securing member downwardly assembled into the second concave from the upper face of the base, said second securing member including an upper horizontal section which is dimensioned larger, in the top view, than the second concave, at least a solder pad located in a bottom portion of the second concave.

7. The electrical card connector as claimed in claim 6, wherein said second securing member further includes a horizontal securing section to hold the second securing member in position in the housing.

8. The electrical card connector as claimed in claim 7, wherein said second securing member extends almost a full dimension of the housing along a front-to-back direction.