JP3569847B2 - Card connector - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a card connector for use in a small electronic device such as a portable terminal for connecting a card.
[0002]
[Prior art]
As a prior art, a card connector 101 shown in FIGS. 5 and 6 has an insulator 111 and a plurality of conductive contacts 113 mounted on the insulator 111.
[0003]
In the connector 101 for card connection, the insulator 111 after the contact 113 is assembled is mounted on a board (not shown) such as a printed circuit board. A thin card such as a memory card or an IC card is inserted into the insulator 111 in the insertion direction A shown in FIG. Further, the card 121 connected to the contact 113 can pull out the card in a removal direction B (see FIG. 5) opposite to the insertion direction A.
[0004]
The insulator 111 interconnects the flat bottom plate 111a facing the substrate at a predetermined interval, the top plate 111b facing the bottom plate 111a, and the bottom plate 111a and the top plate 111b. It has a pair of guide plate portions 111d and 111e.
[0005]
The bottom plate portion 111a, the top plate portion 111b, and the pair of guide plate portions 111d and 111e constitute a card accommodation space S for accommodating the card 121. Six contacts are arranged on the bottom plate 111a at predetermined intervals in the insertion direction A and the removal direction B. As shown in FIG. 6, the card 121 is provided with a card contact portion 121a on one surface thereof, which makes one-to-one contact with the contact 113.
[0006]
Each of the plurality of contacts 113 has a holding portion 113a held on the bottom plate portion 111a of the insulator 111, and extends from one end of the holding portion 113a in the insertion direction A and the removal direction B and is deformed in the thickness direction C of the card 121. It has a possible spring portion 113b and a terminal portion 113c extending from the other end of the holding portion 113a to the outside of the insulator 111 and connected to a conductive portion (not shown) provided on the substrate.
[0007]
At the tip of the spring portion 113b, a contact portion (not shown) that protrudes into the card storage space S and contacts the plurality of card contact portions 121a in a one-to-one manner is formed. An elongated hole 111g is formed in the bottom plate portion 111a so that the spring portion 113b can be deformed in the thickness direction C of the card 121. The spring portion 113b is located in the elongated hole 111g.
[0008]
To mount the card connector 101 on the board, the contacts 113 are attached to the insulator 111, and then the terminal portions 113c are soldered to the conductive portions of the board by soldering such as reflow soldering.
[0009]
The contact portion of the contact 113 extends in the same direction as the spring portion 113b, and the card is inserted in the insertion direction A. Therefore, when the card 121 is inserted and stored to a predetermined position in the card storage space S, the contact portion is formed. , The card contact portion 121a of the card 121 comes into one-to-one contact.
[0010]
[Problems to be solved by the invention]
However, in the card connector 101 according to the prior art, there is a problem that the card 121 cannot be smoothly inserted into the card accommodation space S because only the contact portion is formed at the tip of the spring portion 113b.
[0011]
Further, in the card connector 101 according to the prior art, there is a problem in that there is a limit in suppressing the mounting height because the card 121 is sandwiched between the bottom plate 111a and the top plate 111b.
[0012]
Therefore, an object of the present invention is to provide a small and thin connector for card connection in which a card can be inserted smoothly.
[0013]
[Means for Solving the Problems]
According to the present invention, a card connection includes an insulator mounted on a substrate, and a conductive contact assembled to the insulator so as to receive a card into the insulator in an insertion direction and contact a card contact portion of the card. In the connector, the insulator has a flat main plate portion facing the substrate at a predetermined interval when the insulator is mounted on the substrate, and the insertion direction and a removal direction opposite to the insertion direction. A pair of opposing guide plates connected to the main plate so as to guide the card, wherein the contact has a holding portion held by the insulator and the insertion direction from one end of the holding portion. A spring portion extending in an intersecting direction and along the main plate portion and deformable in a plate thickness direction of the main plate portion; And a terminal portion from the other end parts extending out of said insulator is connected to the conductive portion provided on the substrate, the spring portion, the said main plate portion on the substrate guide plate portion A guide portion is provided to project in the insertion direction while pressing the card by projecting into the card storage space formed by the contact portion, and a contact portion that contacts the card contact portion is formed in the guide portion. A connector for card connection characterized by the following is obtained.
[0014]
[Action]
According to the present invention, the main plate portion of the insulator is mounted on the substrate so as to face the substrate, and the guide portion of the contact is projected from the main plate portion into the card receiving space. The card is inserted into the card accommodating space in a direction substantially perpendicular to the spring portion of the contact in the insertion direction, and the guide portion smoothly inserts the card in the insertion direction.
[0015]
In addition, since the contact portion is formed in the guide portion, it is possible for the guide portion to contact the contact portion while pressing the card contact portion of the card.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a card connector according to the present invention will be described. FIG. 1 shows a connector for card connection, a board on which the connector for card connection is mounted, and a card connected to the connector for card connection in one embodiment of the present invention. FIG. 2 shows a state in which the card connector shown in FIG. 1 is mirror-imaged from the bottom side. FIG. 3 shows a cross section of the card connector shown in FIG.
[0017]
With reference to FIGS. 1 to 3, the card connection connector 10 has an insulator 11 and a plurality of conductive contacts 13 assembled to the insulator 11. In the connector 10 for card connection in this embodiment, an insulator 11 to which a plurality of contacts 13 are assembled is mounted on a board 20 such as a printed circuit board. A thin card 21 such as a memory card or an IC card is inserted into the insulator 11 in the insertion direction A shown in FIG. Further, the card 21 connected to the contact 13 can be pulled out in a removal direction B (see FIG. 1) opposite to the insertion direction A.
[0018]
The insulator 11 includes a flat main plate portion 11a facing the substrate 20 at a predetermined interval, a pair of guide plate portions 11d and 11e connected to the main plate portion 11a and facing in parallel with each other, and a card 21 inserted therein. A regulating plate portion 11f that regulates movement in the insertion direction A when the card is inserted into the card accommodation space S to a predetermined position in the direction A. The pair of guide plates 11d and 11e serve to guide the movement of the card 21 in the insertion direction A and the removal direction B.
[0019]
In this embodiment, six contacts are arranged at predetermined intervals in the insertion direction A and the removal direction B such that three contacts face each other on the tip side, but they may be arranged with a positional shift. . The card 21 is provided with card contact portions 21a at six locations on one surface which are in one-to-one contact with the contacts 13. The dimension of the main plate 11a in the direction intersecting the insertion direction A and the removal direction B at right angles is longer than the dimension of the main plate 11a in the insertion direction A.
[0020]
As shown in FIG. 4, each of the plurality of contacts 13 includes a holding portion 13a held by the insulator 11 and a main plate portion 11a in a direction intersecting the insertion direction A and the removal direction B from one end of the holding portion 13a. And a conductive portion (not shown) provided on the substrate 20 and extending from the other end of the holding portion 13a to the outside of the insulator 11 and extending from the other end of the holding portion 13a. And a terminal portion 13c connected to the terminal portion 13c.
[0021]
In the contact 13 in this embodiment, the spring portions 13b of the three contacts 13 arranged in the insertion direction A and the removal direction B and the spring portions 13b of the three contacts 13 arranged on the other side are different. The dimensions are different.
[0022]
The spring portion 13b protrudes into the card accommodation space S formed by the main plate portion 11a and the pair of guide plate portions 11d and 11e on the substrate 20 and presses the card 21 toward the substrate 20 in the insertion direction A. A guiding portion 13f for guiding is provided. The guide portion 13f is bent so as to be curved or inclined between the insertion direction A and the removal direction B, and protrudes into the card housing space S. The guide portion 13f includes a contact portion 13g that is bent between the insertion direction A and the removal direction B, protrudes into the card storage space S, and comes into one-to-one contact with a plurality of card contact portions 21a provided on one surface of the card 21. Is formed.
[0023]
A press-fit groove 11m for press-fitting and holding the holding portion 13a of the contact 13 is formed on the outer surface of the guide plate portion 11d. The outer surface of the main plate portion 11a, a spring towards the pair of guide plate portions 11d, 11e of the spring portion 13b face each other through a compression groove 11m to continue to the main plate portion 11a of the pair guiding plate portions 11d, 11e of the insulator 11 A receiving portion 11n is formed.
[0024]
The spring receiving portion 11n has a long hole shape so as to penetrate the main plate portion 11a in the plate thickness direction C. A through hole 11p is formed at the tip of the spring receiving portion 11n to project the guide portion 13f and the contact portion 13g from the outer surface side to the inner surface of the main plate portion 11a. In addition, both ends of the guiding portion 13f in the insertion direction A and the removal direction B are located near the wall of the through hole 11p or are inserted into the through hole 11p.
[0025]
To mount the connector 10 for card connection on the board 20, after attaching the contact 13 to the insulator 11, the terminal 13c is soldered to the conductive part of the board 20 by soldering such as reflow soldering. In the connector 10 for card connection thus soldered, the terminal portion 13c is fixed to the substrate 20, and the holding portion 13a of the contact 13 is pressed into the press-fit groove 11m of the guide plate portions 11d and 11e of the insulator 11. Since it is held, it can be mounted without rattling.
[0026]
Since the card 13 is inserted in the insertion direction A from a direction substantially perpendicular to the spring portion 13b, the contact 13 is formed by the guide portion 13f having a long dimension in the insertion direction A and being curved or inclined. It is inserted smoothly in the insertion direction A. When the card 21 is inserted and stored to a predetermined position in the card storage space S, a pair of card contact portions 21a of the card 21 are connected to the contact portion 13g of the guide portion 13f formed so as to protrude most into the card storage space S. Touch one.
[0027]
Note that bring out the card 21 from the card housing space S, knob by hand card 21 can be removed readily card 21 is pulled out to the removing direction B.
[0028]
【The invention's effect】
As described above, according to the present invention, when the insulator is mounted on the substrate with the main plate portion facing the substrate, the guiding portion of the contact protrudes into the card receiving space. At this time, the card is inserted into the card receiving space. As a result, the height dimension of the insulator can be reduced, and an optimal card connector can be provided when mounting a small and thin device. That is, since the insulator does not require a plate portion on the board side, the height of the card connector itself can be reduced when the insulator is mounted on the board.
[0029]
Further, since the card is inserted in the insertion direction from a direction substantially perpendicular to the contact spring portion, the card can be smoothly inserted in the insertion direction by the guide portion having a long dimension in the insertion direction.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a card connection connector according to the present invention together with a board and a card.
FIG. 2 is a perspective view showing a state in which the card connector shown in FIG. 1 is mirror-imaged from the bottom side.
FIG. 3 is a sectional view taken along line III-III of the card connector shown in FIG. 1;
FIG. 4 is a perspective view showing contacts of the card connector shown in FIG. 1;
FIG. 5 is a perspective view showing a card connection connector and a card according to the prior art.
FIG. 6 is a perspective view of the card connector and the card shown in FIG. 5 as viewed from the back side.
[Explanation of symbols]
10, 101 Card connection connector 11, 111 Insulator 11a, 111a Main plate portion 11d, 11e, 111d, 111e Guide plate portion 11m Press-fit groove 11n Spring receiving portion 11p Through hole 13, 113 Contact 13a, 113a Holding portion 13b, 113b Spring portion 13c, 113c Terminal portion 13f Induction portion 13g Contact portion 20 Substrate 21, 121 Card 21a, 121a Card contact portion S Card accommodation space

Claims (4)

A card connector including an insulator mounted on a substrate, and a conductive contact assembled to the insulator so as to receive a card in the insulator in an insertion direction and to contact a card contact portion of the card.
The insulator has a flat main plate portion facing the substrate at a predetermined interval when the insulator is mounted on the substrate, and inserts the card in the insertion direction and in a removal direction opposite to the insertion direction. A pair of opposing guide plate portions connected to the main plate portion so as to guide the contact portion, wherein the contact is a direction in which the holding portion held by the insulator and a direction intersecting the insertion direction from one end side of the holding portion; And a spring portion extending along the main plate portion and deformable in the thickness direction of the main plate portion, and a conductive portion extending out of the insulator from the other end side of the holding portion and provided on the substrate. and a terminal portion connected to said spring portion presses said card projects to the card housing space formed between the main plate portion on said substrate by said guide plate portion The insertion guiding part is provided with guiding direction, the said guiding portion, the card connector connection, wherein a contact portion that contacts the card contact portion is formed One. 2. The card connector according to claim 1, wherein the holding portion is held by the guide plate portion, and the guide portion extends from the through hole penetrating the main plate portion to the card receiving space and extends in the insertion direction. A card connector, which is provided with a long dimension. 2. The card connector according to claim 1, wherein a press-fit groove for press-fitting and holding the holding portion is formed on an outer surface of the guide plate portion, and the spring portion is received on an outer surface of the main plate portion. A card connection, wherein a spring receiving portion is formed, and a through hole is formed in the main plate portion at a tip portion of the spring receiving portion to project the contact portion from an outer surface to an inner surface of the main plate portion. Connector. 2. The card connection connector according to claim 1, wherein the main plate portion has a dimension in a direction orthogonal to the insertion / extraction direction of the main plate portion longer than a dimension in the insertion direction. .

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