JPH0434272B2 - - Google Patents

Description

[Detailed Description of the Invention] -Field of Industrial Application- This invention relates to a connector for an IC card, and is used to connect the contact terminal of an IC card and the printed board of a device into which the IC card is inserted. It concerns the connectors used.

-Prior Art- Edge contact type IC card connectors usually have a structure in which the connector and the printed board of the IC card reader/writer are directly connected without using a cable. In this case, conventionally, as shown in FIG. 6, connecting pins 2 integrally formed at the base of the contact plate 1 of the connector are inserted into the through holes 4 of the printed board 3 and soldered to the contact plate 1 of the connector. 1 and the connection pattern 5 of the printed board are connected. The contact plate 1 is integrated with the connector main body 7 by molding, etc. Therefore, the connector 6 is fixed to the printed board 3 by soldering the connecting pins 2 and the printed board 3, and is connected to the printed board 3. It is integrated.

Note that the connector 6 shown in FIG.
A slit 10 for inserting an IC card is provided in the lid.
By inserting the IC card 11 into the slit 10 and closing the cover body 9 by swinging it upward in the figure, the contact terminals 12 of the IC card are brought into contact with the contact plate 1 of the connector. and the main body 7
The connecting pin 2 is fixed to the printed board 3 by hooking the hooking piece 13 provided on the tip of the printed board 3 to the leading edge of the printed board 3, and then attaching it to the printed board 3 on the side opposite to where the connector is attached. 14 is the mounting surface of the element.

-Problems to be Solved by the Invention- Printed boards are becoming smaller due to the miniaturization of elements and the spread of high-density packaging, but in the above conventional structure, it is difficult to make the printed board 3 smaller than the size of the connector 6. is difficult. Also, printed board 3
Since the connector 6 and the connector 6 are integrated, for example, even if you want to replace only one of the connector 6 or the printed board 3, you have to replace both at once, which makes it difficult to check the printed board 3 during maintenance. There is a drawback that the connector 6 must also be removed. Especially connector 6 is IC card 11
Due to the insertion and removal operations of the PC board, the mounting position to the equipment is limited, and the mounting position cannot be determined taking maintenance of the printed board 3 into consideration.Moreover, as equipment and printed boards are becoming smaller and smaller, the mounting position of the printed board 3 is limited. The inability to easily remove only part 3 becomes a major obstacle in maintenance work.

-Means for solving the problems- This invention solves the above problems with the following structure.

That is, the connectors 16, 16a, 16b of this invention
A slit 18 for inserting a printed board and a slit 19 for inserting an IC card are provided with their rear ends adjacent to each other. A plurality of contact boards 20 each having a board contact 22 and an IC card contact 23 are arranged.

IC card contact 23 and printed board contact 22
are provided on each of the plurality of contact plates 20, and the contact terminals 12 of the IC card 11 and the connection pattern 5 of the printed circuit board 3 are directly connected via the contact plates 20. The contact plate 20 is supported so as to be movable by its own elasticity or via another elastic member, and the IC card contacts 23 are connected to the IC card 1.
When it comes into contact with one contact terminal 12, its pushing action urges the printed board contact 22 toward the connection pattern 5 of the printed board 3 inserted into the slit. The above-mentioned pushing motion is a moving motion of the contact pushing member 25 that moves along with the IC card 11 as shown in the first embodiment, or a moving motion of the IC card 11 itself in the contact direction as shown in FIG. is applied to the contact plate 20 by.

-Function- According to the above structure, when the IC card 11 is inserted into the connector 16 and its contact terminals 12 are pressed against the contact plate 20, the printed board contacts 22 of the contact plate 20 are inserted into the printed board insertion slit. It is firmly pressed against the connection pattern 5 of the printed board 3 inserted into the board 18, and a reliable connection between the two is realized. and
When the IC card 11 is removed from the connector,
The printed board contacts 22 of the contact plate 20 are separated from the connection pattern 5 of the printed board 3, or the pressing force thereof is reduced, and the printed board 3 can be easily inserted into and removed from the printed board insertion slit 18. Therefore, even with a connector having a large number of contacts, so-called zero insertion can be achieved, and the operation of connecting and separating the connector 16 and the printed circuit board 3 can be performed extremely easily.

In addition, since the connector 16 is not supported by the printed board 3, there is no problem with the mechanical strength of the supporting parts of both, and since the connector 16 is connected to the edge of the printed board 3, the connector 16 is fixed. The surface of the printed board 3 is not occupied for connection or connections, and the printed board 3 can be further downsized.

-Embodiment- Figures 1 to 4 show the first embodiment of the present invention. Figure 1 is a sectional view of the connector before inserting an IC card, and Figure 2 is a cross-sectional view of the connector when the IC card is inserted. A cross-sectional view, Figure 3 is a perspective view of the main part of Figure 2, and Figure 4 is a perspective view of the main part of Figure 2.
The figure is an overall perspective view of the connector.

In the figure, 16a is an IC card connector according to the present invention, 17 is a locking claw integrally provided on the top plate of the connector, 18 is a slit for inserting a printed board formed on the base end side of the connector 16a, 19 2 is an IC card insertion slit formed on the front end side of the connector 16a with the slit and the rear end adjacent to each other;
Reference numeral 0 designates a contact plate disposed at a portion 21 adjacent to both slits 18 and 19, and the contact plate includes a printed board contact 22 that is exposed at the back end of the slit 18 and a contact point 22 that is exposed at the back end of the slit 19. It is equipped with an IC card contact 23. 24 connects the contact plate 20 to the connector 16
a An insulating support fixed to the main body, 25 is a contact pushing member whose upper surface has two upper and lower cam surfaces 26 and 27, and 28 is a contact pushing member with cam surfaces 26 and 27 laterally divided (see Fig. 3). 29 is the contact pushing member 2
5 is movably supported in parallel with the IC card insertion slit 19, 30 and 31 are stoppers protruding from the front and rear ends of the guide, and 32 is a contact pushing member 25 on the tip side of the connector 16a. It is a tension spring that is biasing.

As shown in FIG. 3, the contact plates 20 are formed of spring plates and are arranged in parallel in a comb-like manner on an insulating support 24, and their tips are placed on cam surfaces 26 and 27 defined by partition walls 28. has been extended to. Reference numeral 33 denotes a protrusion formed on the upper edge of the partition wall 28a at both ends of the contact pushing member, and when the card is inserted, the tip side of the IC card 11 comes into contact with the protrusion and moves the contact pushing member 25 to the left in the figure. .

In the state shown in FIG. 1 where no IC card is inserted, the printed board contacts 22 of the contact board slightly protrude into the printed board insertion slit 18, and when the printed board 3 is inserted into the slit 18, The frictional force acting on the printed board 3 from the contacts 22 is small, and even if the connector 16a has a large number of contacts, the printed board 3 can be inserted into and removed from the connector 16a very easily. On the other hand, when inserting an IC card, that is, when reading the card, the cam surface 2 of the contact pushing member advances as the IC card is inserted.
6 and 27 push the bent portions 34 and 35 of the contact plate 20 upward to press the contact terminals 12 of the IC card into contact with the IC card contacts 23, and at the same time, connect the printed board contacts 22 to the connection pattern of the printed board 3. 5, the two are securely connected and will not interfere with the IC card reading operation.

In this embodiment, the contact plate 20 is provided with two bent portions 34 and 35, and the contact pushing member 25 is provided with two cam surfaces 26 and 27, so that the contact 2
2 and 23 are pressed into contact with the connection pattern 5 of the printed circuit board and the contact terminal 12 of the IC card, respectively, but the bent portions are connected to one of them (for example, the bent portion 34).
The above object can also be achieved by using a contact pushing member 25 that is provided with a cam surface (for example, 26) that pushes this bent portion.

FIG. 5 is a sectional view showing a second embodiment of the present invention.
The IC card and the contacts of the connector are brought into contact by the same operation as shown in Fig. 6, and the pin 41 is attached to the main body 40.
A slit 19 for inserting an IC card is provided in the lid body 42, which is pivoted at This makes contact with the card contact 23. In this embodiment, the contact plate 20 is bent downwardly to face the base end of the lid 42 to form the IC card contact 23, and the tip of the contact plate 20 is connected to a guide block fixed to the main body 40. 37 in a laterally movable or fixed manner. Reference numeral 38 denotes a comb-shaped partition wall provided to prevent the contact plates 20 from coming into contact with each other, and corresponds to the partition wall 28 in the first embodiment.

In the connector of this embodiment, by inserting the IC card 11 into the lid body 42 and moving it upward, the contact terminals 12 of the IC card and the IC card contacts 2 of the connector are connected.
3 comes into contact with the contact plate 2, but this contact action causes the contact plate 2 to
0 is pushed upward, the printed board contact 22 is also moved upward, and the contact 22 is firmly pressed against the connection pattern of the printed board 3 inserted into the printed board insertion slit 18.

- Effects of the Invention - As described above, the connector of the present invention has a contact plate.
When the IC card contact is pressed into contact with the contact terminal of the inserted IC card, which forms both the IC card contact and the printed board contact, the printed board contact is firmly pressed into contact with the connection pattern of the printed board at the same time. Because it has a simple structure, it is possible to reliably connect the IC card and the printed circuit board, and
When no IC card is inserted, the pressing force of the printed board contacts against the printed board is released or reduced, making it extremely easy to connect and separate the connector and the printed board, even if the connector has multiple contacts. Since the printed circuit board and the connector can be freely attached to and separated from each other, it is possible to replace only one of the connector or the printed circuit board, which greatly simplifies the maintenance work of the apparatus.

In addition, since the connector is connected to the edge of the printed board via contacts, the surface of the printed board is not occupied for fixing the connector, making it easier to downsize the printed board and connecting the two. There are no mechanical strength problems in the parts.

[Brief explanation of drawings]

1 to 4 show a first embodiment of the present invention, in which FIG. 1 is a sectional view of the connector before inserting an IC card, FIG. 2 is a sectional view of the connector when an IC card is inserted, and FIG. Figure 3 is a perspective view of the main part of Figure 2, and Figure 4 is a perspective view of the main part of Figure 2.
The figure is an overall perspective view of the connector. FIG. 5 is a sectional view showing a second embodiment of the present invention, and FIG. 6 is a sectional view showing an example of a conventional connector. In the figure, 3...Printed board, 5...Connection pattern, 11...IC card, 12...IC card contact terminal, 16, 16a, 16b...IC card connector, 18...Slit for inserting printed board ,
19...Slit for IC card insertion, 20...Contact plate, 21...Adjacent portion, 22...Contact for printed board, 23...Contact for IC card, 25...Contact pushing member.

Claims (1)

[Claims] 1 A slit 18 for inserting a printed board and a slit 19 for inserting an IC card are provided with their rear ends adjacent to each other, and both slits 18 are provided in the adjacent portion 21.
Contact point 2 for the printed board that emerges from the rear end of 19
A plurality of contact plates 20 are arranged, each having a contact point 23 for an IC card and a contact point 23 for an IC card.
An IC card connector characterized in that when the contact point 22 contacts the IC card 11, its pushing action forces the printed board contact 22 toward the printed board 3 inserted into the printed board insertion slit 18. .