1. Field of the Invention
The present invention relates to a card connector, and more particularly to a card connector having an improved spring arm permitting one memory card only to be inserted at a time.
2. Description of Related Art
In recent years, with the widespread use of digital cameras and the like, memory cards having a large storage capacity and a compact shape have been used. A wide variety of cards have been used depending upon characteristics and the like of appliances with which the memory cards are used, and therefore card connectors adapted to accommodate cards of a plurality of kinds will be favorable. With such card connectors adapted to receive the cards of different kinds, however, it will be required to prevent a plurality of cards from being inserted into a card connector at a time.
The card connector usually comprises an insulating housing defining adjacent card cavities; a plurality of card contacts retained in the housing to expose to the corresponding card cavities; and at least one separated controlling member assembled to the housing and located between the two card cavities, and comprising upper and lower protrusions deflected between the two card cavities and protruding into the one card cavity when a card has been inserted into the other card cavity, and a resilient portion for urging the upper and lower protrusions to resume their original positions when the card has been withdrawn from the other cavity. However, the separated controlling member must be made of separately and will increase the manufacturing costs.
Hence, an improved card connector is desired to overcome the above problems.
According to one aspect of the present invention, a card connector comprises: a first inserting slot for insertion of a first memory card with a plurality of first terminals extending thereinto for mating with the first memory card; a second inserting slot for insertion of a second memory card with a plurality of second terminals extending thereinto for mating with the second memory card; and a partition wall located between the first and second inserting slots for separating the first inserting slot and the second inserting slot; wherein the partition wall has at least one spring arm integrally extending therefrom and located between the first and second inserting slots, when one of the first and second memory cards is inserted into the corresponding one of the first and second inserting slots, the spring arm protrudes into the other one of the first and second inserting slots so as to prevent the other one of the first and second memory cards from being inserted into the other one of the first and second inserting slots.
According to another aspect of the present invention, a card connector for insertion of at least two memory cards comprises: an insulative housing having a pair of inserting slots arranged in vertically overlapping relationship for inserting said memory cards and a partition wall arranged between said inserting slots so as to separate said inserting slots; a plurality of terminals protruding into the inserting slots for mating with the memory cards; and a cantilevered spring arm integrally extending from the partition wall and located between said inserting slots, when one memory card being inserted into one inserting slot, the spring arm protruding into the other inserting slot so as to prevent the other memory card from being inserted into the other inserting slot.
The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the detailed description of the invention that follows may be better understood. Additional features and advantages of the invention will be described hereinafter which form the subject of the claims of the invention.
For a more complete understanding of the present invention, and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be obvious to those skilled in the art that the present invention may be practiced without such specific details. In other instances, well-known circuits have been shown in block diagram form in order not to obscure the present invention in unnecessary detail. For the most part, details concerning timing considerations and the like have been omitted inasmuch as such details are not necessary to obtain a complete understanding of the present invention and are within the skills of persons of ordinary skill in the relevant art.
Referring to
Referring to
The first and second terminals 3, 4 are assembled to the insulative housing 1 from a rear side of the back wall 12. The first terminals 3 have first contacting portions 31 received in the first passageways 144 and protruding into the first inserting slot 151 for mating with the first memory card 200, first mounting portions 33 extending out of the back wall 12 for being mounted onto a printed circuit board (not shown), and first retaining portions 32 retained in the back wall 12. The second terminals 4 have second contacting portions 41 received in the second passageways 132 and protruding into the second inserting slot 152 for mating with the second memory card 300, second mounting portions 43 extending out of the back wall 12 for being mounted onto the printed circuit board, and second retaining portions 42 retained in the back wall 12. The side walls 11 extend backwardly beyond the back wall 12 so as to form a cavity 16 among the side walls 11 and the back wall 12. The first and second mounting portions 33, 43 are arranged in one row along a transverse direction perpendicular to the front-to-back direction and received in the cavity 16. The first and second blocks 143, 131 are located at front of the first and second contacting portions 31, 41 respectively so as to prevent the first and second contacting portions 31, 41 from forwardly over deformation.
Each locking member 5 has a securing portion 51 retained in the groove 113, a latching portion 52 protruding into the second inserting slot 152 for latching with the second memory card 300, and a tail portion 53 extending out of the side wall 11 for being mounted onto the printed circuit board.
The shell 2 is stamped from one piece of metal sheet and comprises a top plate 21, a pair of side plates 22 extending downwardly from two lateral sides of the top plate 21 and being retained in the side walls 11, and a pair of mounting legs 23 extending from the side plates 22 for being mounted onto the printed circuit board. Each side plate 22 has a set of apertures 222 latched on the protrusions 114, and a clasping arm 221 protruding inwardly therefrom and resisting the locking member 5.
Referring to
In this invention, the spring arm 141 is integrally formed with the insulative housing 1 and is made of dielectric materials same as the insulative housing 1. In another embodiment of this invention, the stopper 142 could include a pair of projections 142a protruding into both the first and the second inserting slots 151, 152, in this way, when a memory card is inserted into any one of the first and second inserting slots 151, 152, the stopper 142 will be pushed greatly toward into the other one of the first and second inserting slots 151, 152 by the memory card, it is apparent that another memory card can be prevented from being inserted into the other one of the first and second inserting slots 151, 152.
It is to be understood, however, that even though numerous, characteristics and advantages of the present invention have been set fourth in the foregoing description, together with details of the structure and function of the invention, the disclosed is illustrative only, and changes may be made in detail, especially in matters of number, shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
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200920314487.5 | Nov 2009 | CN | national |