JP3561487B2 - Card connector - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a card connector, and more particularly to a card connector into which an IC card is inserted.
[0002]
[Prior art]
2. Description of the Related Art In recent years, the use of IC cards in which IC components are incorporated has increased significantly, and card connectors for inserting IC cards have been widely demanded. In such a conventional card connector, there is a demand in the market for a card connector having a low height and a low height, and a card connector having a sufficient strength required for insertion and removal of an IC card. It has a sheet metal cover for holding the card and obtaining strength, and is configured by incorporating such a sheet metal cover to the substrate. In addition, there is a similar demand for a so-called reverse-type inverted-type card connector. For this reason, a sheet metal is used for a ceiling portion of the card connector, and furthermore, erroneous insertion of an IC card, such as a backward insertion, is performed. In order to prevent the IC card from being pushed and buckled when the IC card is inserted upside down, a rib is made up of a metal sheet to prevent the IC card from contacting the IC card. (The terminal section).
[0003]
[Problems to be solved by the invention]
However, the ribs in such a card connector may have an original function because the IC card may be placed on the ribs or pass over the ribs because the inserted IC card is lifted or the tolerance of the ribs is very small. Cannot be sufficiently exerted, and the contact may be damaged. Further, if the height of the rib is too high, there is a problem that the rib and the pad portion come into contact with each other and short-circuit when the IC card is properly inserted. Further, if the height of the rib is set so that the pad portion of the IC card does not contact the rib on the card connector side in an IC card having the worst tolerance, the height of the rib is set at the R on the end surface of the IC card. Since it can only protrude to the same height as the part, it easily rises on the ribs due to misinsertion and is in a state where protection is not effective.
[0004]
Accordingly, an object of the present invention is to provide a rib coated with an insulator made of a synthetic resin material to eliminate damage to an IC card and to prevent a short circuit from occurring, in order to solve such a conventional problem. To provide a card connector having an erroneous insertion preventing mechanism for protecting the IC card with an insulator and preventing a rear insertion of the IC card.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a card connector of the present invention is a card connector for an IC card formed by a board and a sheet metal cover combined with the board, wherein the sheet metal cover is provided inside the sheet metal cover. And an erroneous insertion prevention mechanism comprising a rib that is bent and protruded into the insulator and an insulator formed by covering the rib with a synthetic resin material.
[0006]
The card connector according to the present invention is characterized in that the rib has an end face, an end face and both side faces, or an end face and either side face covered with a synthetic resin material.
[0009]
Other objects, features and advantages of the present invention will be apparent from the following detailed description of embodiments of the present invention illustrated in the accompanying drawings.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
(Example)
1 to 3 are views showing an embodiment of the card connector of the present invention. FIG. 1 is a plan view in which an IC card is inserted into the card connector, and FIG. 2 is a view taken along line AA in FIG. FIG. 3 is a perspective view showing the ribs provided on the sheet metal cover of the card connector of the present invention, with the sheet metal cover turned over.
[0011]
As shown in FIGS. 1 to 3, the card connector 1 of the present invention is formed in a housing shape by a board 2 and a sheet metal cover 3 combined with the board 2, and one side is open. An IC card insertion slot 4 is formed, and the other side is closed, and a plurality of contacts 5 for making an electrical connection with the IC card 20 are provided. Further, the card connector 1 of the present invention positions the IC card 20 when the IC card 20 is inserted from the IC card insertion slot 4 and prevents erroneous insertion such as insertion of the IC card 20 at the back. The erroneous insertion preventing mechanisms 6 and 7 are provided which are composed of ribs 8 and 10 and insulators 9 and 11 of a synthetic resin material covering the ribs 8 and 10, respectively.
[0012]
In the card connector 1 of the present invention, the substrate 2 is formed by molding with an appropriate insulating material such as a synthetic resin material, and is formed into a hollow housing shape by being combined with a sheet metal cover 3 made of a metal material. It is formed to be inserted.
[0013]
Therefore, the IC card 20 is inserted into the card connector 1 from the IC card insertion slot 4 formed on the front side of the card connector 1.
[0014]
The sheet metal cover 3 is formed in a shape as shown in the figure by, for example, punching or pressing a sheet metal material such as a stainless steel plate, and has an IC card insertion port 4 formed on the front side, and a plurality of pieces formed on the rear side. An opening 12 for the contact 5 is provided. In particular, the ribs 8 and 10 are bent and provided in the opening 12 at the left and right ends so as to protrude inward.
[0015]
In these ribs 8 and 10, first, the rib 8 is bent along a direction parallel to the longitudinal direction of the card connector 1, that is, the direction in which the IC card 20 is inserted, and the other rib 10 is 1, that is, in the direction orthogonal to the bending direction of the rib 8. Of course, the bending direction of the ribs 8 and 10 may be any direction, and is not limited to the above-described direction. The number is not limited to two, and may be one or three, and generally two. One is preferred. Further, the ribs 8 and 10 are provided with insulators 9 and 11 made of a synthetic resin material by integral molding by, for example, outsert molding. Note that the formation of the insulators 9 and 11 on the ribs 8 and 10 is not limited to the outsert molding, but may be performed by insert molding or other appropriate means. The insulators 9 and 11 can be formed so as to cover the end faces of the ribs 8 and 10, the end faces and both side faces, or the end faces and either one of the side faces.
[0016]
Further, a plurality of contacts 5 are provided on the rear side of the card connector 1 and are in contact with and electrically connected to the pad portions 22 of the IC card 20 inserted into the card connector 1. The electronic device is connected to a printed wiring board (not shown) of the electronic device via the electronic device.
[0017]
That is, as clearly shown in FIG. 2, the contact 5 has a contact elastic strip portion 5a which is curved in an arcuate manner so as to be elastically displaceable and connected to the pad portion 22 of the IC card 20 in contact with the tip portion. In addition, a terminal portion 5b which is appropriately connected to a printed wiring board of an electronic device by soldering or the like is provided at a rear end portion.
[0018]
In the card connector 1 of the present invention thus configured, for example, a two-stage thick card is used as the IC card 20, and such an IC card 20 is inserted into the card connector 1 from the IC card insertion slot 4. When the IC card 20 is inserted in a normal state, the recess 21 in the stepped portion of the IC card 20 is correctly positioned with the contact 5, and the contact elastic strip portion 5a of the contact 5 is The recess 20 is located on the pad portion 22 of the recess 20 and is satisfactorily contacted and connected.
[0019]
In this case, when the thick tip portion of the IC card 20 passes through the contact elastic strip portion 5a of the contact 5, the contact elastic strip portion 5a of the contact 5 is pushed upward as shown by a chain line in FIG. After being elastically deformed, the contact elastic strip portion 5a returns to the pad portion 22 of the IC card 20 after passing, and comes into contact with the pad portion 22 with an appropriate contact pressure to be connected well.
[0020]
As a result, the IC card 20 is suitably connected electrically to the printed wiring board of the electronic device from the pad section 22 via the contact 5. In such a case, the ribs 8 and 10 are covered with the insulators 9 and 11 made of an insulating synthetic resin material, so that even if the ribs 8 and 10 are brought into contact with the pad portion 22 of the IC card 20, there is no short circuit. With no such situation, the IC card 20 can be loaded into the card connector 1 with the IC card 20 properly positioned.
[0021]
Also, if the IC card 20 is inserted backwards by mistake, the rear end of the IC card 20 is prevented from hitting the ribs 8 and 10 covered with the insulators 9 and 11 made of a synthetic resin material. 8 and 10 effectively function as stoppers to prevent erroneous insertion of the IC card 20 properly, and the erroneous insertion prevention mechanisms 6 and 7 composed of the ribs 8 and 10 covered with the insulators 9 and 11 are used. It is configured to work favorably.
[0022]
According to the card connector 1 of the present invention configured as described above, the board 2 and the sheet metal cover 3 combined with the board 2 are formed in a housing shape, and the ribs that are bent inward and protrude from the sheet metal cover 3. Since the erroneous insertion prevention mechanisms 6 and 7 are provided by forming insulators 9 and 11 by providing the ribs 8 and 10 with a synthetic resin material, respectively, a part of the sheet metal cover 3 is provided. The ribs 8 and 10 can be easily formed simply by folding the IC card 20. The ribs 8 and 10 are prevented from being overloaded due to excessive insertion of the inserted IC card 20, and the IC card 20 is protected well. 5 prevents the contact elastic strip 5a from buckling, eliminates the occurrence of short circuits, and reliably prevents erroneous insertion, such as insertion of the IC card 20 at the back. Dokonekuta 1, the substrate 2 of insulating material, by being formed by combining a sheet metal cover 3 made of sheet metal material, it is possible to thin low profile the thickness of the card connector 1 itself.
[0023]
【The invention's effect】
The card connector according to claim 1 of the present invention is a card connector for an IC card formed by a board and a sheet metal cover combined with the board, wherein the sheet metal cover is bent inwardly and protrudes from the sheet metal cover. The erroneous insertion prevention mechanism comprising a rib to be inserted and an insulator formed by covering the rib with a synthetic resin material, respectively, prevents the insertion of the IC card from being excessively inserted, thereby preventing the insertion of the rib. To protect the IC card well, protect the contact elastic strip portion of the contact from buckling, eliminate short-circuit, and prevent erroneous insertion such as backward insertion of the IC card. .
[0024]
In the card connector according to the second aspect of the present invention, since the rib is coated with a synthetic resin material on the end face, the end face and both side faces, or the end face, either side face is easy to make. Thus, erroneous insertion of the IC card, such as insertion into the back, can be favorably prevented.
[Brief description of the drawings]
FIG. 1 is a plan view showing an IC card inserted into a card connector of the present invention.
FIG. 2 is a partial sectional view taken along line AA of FIG.
FIG. 3 is a perspective view of the card connector according to the present invention, showing a rib provided on the sheet metal cover, with the sheet metal cover turned upside down;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Card connector 2 Substrate 3 Sheet metal cover 4 IC card insertion slot 5 Contact 5a Contact elastic strip part 5b Terminal part 6 Erroneous insertion prevention mechanism 7 Erroneous insertion prevention mechanism 8 Rib 9 Insulator 10 Rib 11 Insulator 12 Opening 20 IC card 21 recess 22 pad portion

Claims (2)

In a card connector for an IC card formed by a substrate and a sheet metal cover combined with the substrate,
The sheet metal cover is provided with an erroneous insertion prevention mechanism comprising a rib bent inwardly and protruding into the sheet metal cover and an insulator formed by covering each of the ribs with a synthetic resin material. Card connector. 2. The card connector according to claim 1, wherein said rib has an end face, an end face and both side faces, or an end face and either side face coated with a synthetic resin material.

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