JPH11354232A - Connector for ic card connector device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector for an IC card connector device capable of improving an electric characteristic. SOLUTION: A connector has a terminal 27 composed of a U-shaped first bending part 27c arranged in the end part of the extension part 27b extending from one end of the terminal part 27a, a first elastic piece 27d oppositely extending to the extension part 27b from one end of the first bending part 27c, a U-shaped second bending part 27e arranged in the end part of the first elastic piece 27d, a second elastic piece 27f oppositely extending to the first elastic piece 27d from one end of the second bending part 27e and a contact piece 27g formed on the tip of the second elastic piece 27f and an insulating case 26 for installing the terminal 27, and when a laminated board 20 is inserted into the case 26, the connecting pad parts 24, 24a of the laminated board 20 contact with the contact piece 27g, and a part of the contact piece 27g or the second elastic piece 27f is elastically pressed on the terminal part 27a side of the extension part 27b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector device for an IC card mounted on a device used by mounting an IC card, and more particularly, to a connector device for an IC card which fits a substrate on which pin contacts are mounted. About the connector.

[0002]

2. Description of the Related Art Conventionally, there has been provided an IC card connector device of a type capable of mounting an IC card such as a PC card. In such an IC card connector device, a pin group to be mounted by inserting an IC card and a plurality of insertion holes into which the pin group is inserted are formed, and after inserting the pin group into these insertion holes, soldering is performed. And a connector (board connector) which has a case in which a groove into which the lower end of the printed board is inserted is formed and which is fixed by soldering.

[0003] In a connector case, terminals are provided which are resiliently connected to the inserted printed circuit board.
A conductor portion is formed on the surface or both surfaces of the lower end of the printed circuit board, and a contact piece of a terminal described later is resiliently connected to the conductor portion. Such terminals include those shown in FIGS. 6 (a) and 6 (b). Fig. 6 (a)
The terminal 201 shown in FIG. 3 includes a terminal portion 202, an extended portion 203 extending from one end of the terminal portion 202, a U-shaped first bent portion 204 provided at an end of the extended portion 203, and a first bent portion 204. A first elastic piece 205 extending from one end of the first elastic piece 205 in opposition to the extension 203; a V-shaped second bent part 206 provided at the lower end of the first elastic piece 205; The second elastic piece 20 extended to the
7 and a contact piece 208 formed at the tip of the second elastic piece 207 and pressed against the conductor of the printed circuit board.
It is formed in an S-shape as a whole. A plurality of the terminals 201 are attached to the insulating case in one or two rows. 6A, when the printed board is inserted into the groove of the case, the first elastic piece 205 and the like of the terminal 201 are pushed and bent by the printed board, and Contact piece 208 is generated by elastic force.
Is resiliently connected to a conductor at the lower end of the printed circuit board.

Further, another terminal 211 shown in FIG.
A terminal portion 212; a protruding portion 213 extending upward from one end of the terminal portion 212; an elastic piece 214 extending laterally from a lower portion of the protruding portion 213 and further bending upward;
And a contact piece 215 which is formed at the tip of 14 and presses against the conductor of the printed circuit board, and is formed in a J-shape as a whole. A plurality of the terminals 211 are attached to the insulating case in one or two rows. When the printed circuit board is inserted into the groove of the case, the terminal 211 shown in FIG.
4 is pressed and bent, and the contact piece 215 is resiliently connected to the conductor at the lower end of the printed circuit board by the elastic force of the elastic piece 214.

[0005]

However, FIG.
In the terminal 201 shown in (a), the amount of deflection of the first elastic piece 205 and the like is sufficiently secured as an S-shape, and a sufficient contact pressure between the conductor at the lower end of the printed circuit board and the contact piece 208 is obtained. Therefore, the signal line path extends from the contact point between the conductor at the lower end of the printed circuit board and the contact piece 208 to the S-shaped elastic piece 20.
5, 207, the bent portions 204 and 206, and the extension portion 203, and the like, to the terminal portion 202. Therefore, the signal line path is long, the impedance is high, and problems such as attenuation and delay of transmission signals occur. Was. Further, since the lower end of the printed circuit board is held by the elastic force, the printed circuit board is easily vibrated and the ground bounce is easily generated. On the other hand, in the terminal 211 shown in FIG. 6B, the elastic piece 214 is short and the signal line path is short, but on the other hand, the amount of bending of the elastic piece 214 is small, and a sufficient contact pressure cannot be obtained. .

SUMMARY OF THE INVENTION It is an object of the present invention to reduce the level of attenuation and delay of a transmission signal to an extremely low level, to reduce ground bounce, and to reduce the amount of ground bounce. Light contact, sufficient contact pressure can be obtained when mating is completed, and electrical characteristics can be improved.
It is to provide a connector for a C card connector device.

[0007]

Means for Solving the Problems The above object is achieved by a terminal portion,
An extension extending from one end of the terminal, a U-shaped first bent portion provided at an end of the extension,
A terminal comprising an elastic piece extending from one end of the bent portion of the elastic piece to face the extension, a contact piece formed at the tip of the elastic piece, and an insulating case for attaching the terminal, and an IC card connector. When a printed board provided in the device is inserted into the case, a conductor provided on the printed board contacts the contact piece, and a part of the contact piece or the elastic piece is connected to the terminal of the extension. This is solved by a first means for suppressing the pressure on the side. The above object is attained by a second means in the first means, wherein a conductive portion of the printed board is brought into contact with the elastic piece. The above object is achieved by a third means attached to the case with the two contact pieces facing each other in the second means. The object is to provide a terminal portion, an extended portion extending from one end of the terminal portion, a U-shaped first bent portion provided at an end portion of the extended portion, and a first bent portion from one end of the first bent portion. The first extending opposite the extension
An elastic piece, a U-shaped second bent portion provided at an end of the first elastic piece, and a second extending from one end of the second bent portion to face the second elastic piece. A terminal comprising an elastic piece of a second elastic piece and a contact piece formed at the tip of the second elastic piece; and an insulating case for mounting the terminal. When inserted into the case, the conductor of the printed circuit board comes into contact with the contact piece, and a part of the second elastic piece is resiliently pressed at the terminal of the extension by the fourth means. Will be resolved. The above-mentioned object is achieved by a fifth means attached to the case in a state where the two contact pieces face each other in the fourth means.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing the entirety of the IC card connector device according to the first embodiment, FIG. 2 is a longitudinal sectional view of a main part of a connector portion of the IC card connector device shown in FIG. 1, and FIG. FIG.

First, the entire IC card connector device will be described. An IC card connector device includes a plurality of pin contacts 10 arranged in a predetermined arrangement in a pin housing 11.
And a substantially U-shaped frame 14 for guiding the IC card 13 during insertion and removal.
And an eject lever 15 and a push rod 16 as an eject mechanism attached to each frame 14. The shape of the pin contact 10 has a substantially cylindrical contact portion 17 at one end,
A bulging portion 19a and a locking portion 19b are formed near the other end of the contact portion 17 so as to be locked in the pin insertion hole 11a of the pin housing 11 to prevent the pin portion 11 from coming off. The header section 12 includes two pin housings 11 into which a predetermined number of pin contacts 10 of two sets are press-fitted and fixed.
11 schematically shows the configuration. That is, the pin housing 11 is formed by laminating the pin housings 11 in which one set of pin contacts 10 are press-fitted and fixed in two stages, and connecting the terminal portions 18 of the pin contacts 10 to a laminated board (printed board).
It is configured by attaching solder 63 to 20 signal patterns and fixing them. In addition, each pin housing 11
Each is integrated by fitting a protrusion into the fitting hole.

The header section 12 is mounted on the mounting surface of the main printed circuit board 21, and the lower end of the laminated board 20 is connected to a connector 22 mounted on the main printed circuit board 21.
And is soldered. In the connector 22, a pair of terminals 27 sandwiching both sides of the laminated substrate 20 so as to be pressed against each other are housed in a case 26.

The terminal 27 is, as shown in FIG.
7a and an extension 27b extending from one end of the terminal 27a.
A U-shaped first bent portion 27c provided at an end of the extension portion 27b, a first elastic piece 27d extending from one end of the first bent portion 27c to face the extension portion 27b,
A U-shaped second bent portion 27e provided at an end of the first elastic piece 27d, and a second elastic piece extending from one end of the second bent portion 27e so as to face the first elastic piece 27d. 2
7f and a contact piece 27g formed at the tip of the second elastic piece 27f, and have an overall S-shape.
A contact portion 27h is formed to be bent on the terminal portion 27a (extended portion 27b) side of the second bent portion 27e. Then, as shown in FIG. 2, the contact portion 27h of the terminal 27 has an extended portion 27b (terminal portion 27a
Side).

Each terminal portion 27a of the pair of terminals 27 is shown in FIG.
As shown in (2), it is led out of the connector 22 and soldered to a circuit pattern (not shown) on the main printed circuit board 21. In addition, although an example was described in which a pair of terminals 27, 27, that is, a plurality of contact pieces were opposed to each other in two rows and attached to the case 26, the present invention is not limited to this. Only the terminals may be attached to the case 26 so that only one surface of the printed circuit board is pressed against the case 26.

Reference numeral 14b denotes a rod support frame for supporting the push rod 16, reference numeral 42 denotes a bridging portion connecting the rear ends of the concave groove forming portions 41 of both frames 14, reference numeral 43 denotes a grounding fitting,
Reference numeral 3a43b denotes a pair of curved elastic pieces extending toward the distal end of the grounding metal member 43, reference numeral 38 denotes a shroud (metal plate) which contacts the case of the IC card 13 through the opening 39 of each pin housing 11 and grounds, and reference numeral 40 denotes a laminated board of the shroud 38. 20 is a terminal portion provided on the side of the laminated board 20 and connected to the ground pattern of the laminated board 20; 72 is a metal cover covering the upper and lower openings of each frame 14; It is a spacer for attachment.

In this embodiment, a pin housing 11 having fixedly arranged pin contacts 10 at each of the upper and lower stages, and a card insertion slot 14a at the front end, and the front and rear portions are attached to the pin housing 11. A frame 14 and an eject lever 15 and a push rod 16 supported by the frame 14, and a connector device for two IC cards, into which the IC card 13 can be inserted into both the upper stage and the lower stage. Has become.

As shown in FIG. 2, the laminated substrate 20 has a large number of terminal holes 50 in two rows (in a direction perpendicular to the paper) into which the terminal portions 18, 18,... Of the upper pin contacts 10 are inserted. The terminal holes 5 into which the terminal portions 18, 18... Of the lower pin contact 10 are respectively inserted.
A large number of 1s are formed in two rows (in a direction perpendicular to the paper surface).
Reference numeral 53 denotes an insertion hole into which the terminal portion 40 of the shroud 38 is inserted.

Therefore, as described above, the laminated substrate 2
2 is fitted into the fitting groove 23 of the connector 22 as shown in FIG.
The terminal portion 18 of the “0” is formed from the solder 63 to a pattern (not shown) of the laminated substrate 20, a connection pad portion (conductor portion) of the laminated substrate 20.
24, 24a (see FIG. 3), connector 2 of FIGS. 2 and 3
2 is connected to the circuit pattern on the main printed circuit board 21 via the right terminal 27. The terminal portion 18 of the upper pin contact 10 is formed by a solder 63 and a pattern (not shown) of the laminated substrate 20, connection pad portions 25 and 25 a, FIG.
3, and is connected to a circuit pattern (not shown) on the main printed circuit board 21 via the left terminal 27 of the connector 22 in FIG.

Next, the operation of the connector according to the first embodiment of the present invention will be described. When the lower edge of the laminated board 20 is fitted into the fitting groove 23 of the connector 22 from the state of FIG.
7 are in contact with the first bent portion 27.
c, the first elastic piece 27d, the second bent portion 27e, the second elastic piece 27f, etc. are bent to the left and right and expanded. The contact piece 27g is in light contact with the laminated board 20 at the initial stage of fitting. Then, when the fitting of the laminated substrate 20 is completed, as shown in FIG.
(Terminal 27a side). In this way, the signal line path of the terminal 27 is formed by the contact portion 27h and the extension 2
7b (terminal 27a side) and short-circuited, and the connection pad portion 24 or 24a of the laminated substrate 20 and the contact piece 2
The path from the contact point with 7g to the terminal portion 202 via the second elastic piece 27f, the second bent portion 27e, and the contact portion 27h and the extension portion 27b (terminal portion 27a side). Further, since the length of the bent portion such as the second elastic piece 27f is sufficiently long, the contact between the connection pad portion 24 or 24a and the contact piece 27g is completed in the state where the fitting of the laminated substrate 20 of FIG. 2 is completed. A sufficient contact pressure can be obtained at the portion and at the contact portion between the contact portion 27h and the extension portion 27b (the terminal portion 27a side). The conductor of the laminated board (printed board) may be brought into contact with the second elastic piece 27f. The printed circuit board may be a single-layer board instead of a laminated board.

In the first embodiment, the laminated board 20 provided in the IC card connector device is provided.
Is inserted into the case 26, the connection pad portions (conductor portions) 24 and 24a provided on the laminated substrate 20 become contact pieces 27g.
And the contact portion 27h is resiliently pressed on the terminal portion 27a side of the extension portion 27b, so that the signal line path of the terminal 27 is connected to the connection pad portion (conductor portion) 2 of the laminated substrate 20.
Since the contact point between the contact piece 4, 24a and the contact piece 27g reaches the terminal 27a via the short-circuit point, the signal line length can be greatly reduced, and the level of attenuation / delay of the transmission signal becomes extremely small, so that there is no trouble. In addition, the ground bounce can be reduced, and the contact piece 27g makes light contact with the connection pad portions (conductor portions) 24 and 24a of the laminated board 20 at the initial stage of fitting, and a sufficient contact pressure is obtained when the fitting is completed. can get.

Next, a second embodiment of the present invention will be described. FIG. 4 is an explanatory diagram showing a second embodiment of the present invention. Although the same parts as those in the first embodiment are not shown in FIG. 4, they are described using the same reference numerals.

The difference between the second embodiment and the first embodiment will be described.
The terminal 27a of the extension 27b is flattened toward the second bent portion 27f by eliminating the protruding portion (the first embodiment) that presses against the terminal 27a of the extension 27b formed near f. The step 27j is protruded. Therefore, the operation of the second embodiment is the same as that of the first embodiment, except that when the lower edge of the laminated substrate 20 is completely fitted, the second bent portion 27j is formed on the step portion 27j. Part 27f
(Or the lower part of the first elastic piece 27d) is in elastic contact. Thus, the signal line path of the terminal 27 is short-circuited at the contact portion between the second bent portion 27f (or the lower part of the first elastic piece 27d) and the step portion 27j. In the second embodiment as well, similar to the first embodiment, a sufficient contact pressure can be obtained, and when the fitting of the laminated substrate 20 is completed, the terminal of the second bent portion is formed. The part side (or the lower part of the first elastic piece 27d) is in contact with the stepped part 27j. Therefore, the second embodiment has the same operation and effect as the first embodiment.

Next, a third embodiment of the present invention will be described. FIG. 5 is an explanatory diagram of the third embodiment. Although the same parts as those in the first embodiment are not shown in FIG. 5, they are described using the same reference numerals.

In the third embodiment, the terminal 27a
An extension 27b extending from one end of the terminal 27a, a U-shaped first bent portion 27c provided at an end of the extension 27b, and an extension 27b facing one end of the first bent portion 27c. And a contact 27g formed at the tip of the first elastic piece 27d, and a step 27j protruding from the terminal 27a of the extension 27b. Thus, a terminal 27 is formed, and this terminal 27 is attached to an insulating case as shown in FIG. Then, when the laminated board 20 provided in the IC card connector device is inserted into the case, the connection pad portions (conductor portions) 24 and 24a of the laminated board 20 come into contact with the contact pieces 27g and the first elastic pieces 27d. (Contact piece 27g)
Of the extension 27b is pressed against the step 27j of the extension 27b.

The operation of the third embodiment will be described. When the laminated board 20 provided in the IC card connector device is inserted into the case, the lower edge of the laminated board 20 (or the connection pad portion (conductor) Contact piece 27)
g comes into contact, the contact piece 27g is pushed and the first elastic piece 2
7d is bent leftward in FIG. Then, the laminated substrate 20
Is completed, the contact piece 27g is in contact with the connection pad portion (conductor portion) 24 provided on the laminated substrate 20 with a sufficient contact pressure. The first elastic piece 27d (the contact piece 2)
Part 27k of 7g) is brought into contact with the step 27j of the extension 27b by a sufficient contact pressure and short-circuited. In this manner, the signal line path of the terminal 27 extends from the contact point between the connection pad portion (conductor portion) 24 of the laminated substrate 20 and the contact piece 27g to the terminal portion 27a through the short-circuit point through a portion 27k. The signal line length can be greatly reduced, and the level of attenuation and delay of the transmission signal becomes extremely small, so that no trouble occurs. In addition, the ground bounce can be reduced, and the connection pad portion (conductor portion) 24 of the laminated substrate 20 can be reduced.
(24a) Light contact at the initial stage of fitting, and sufficient contact pressure can be obtained when fitting is completed.

In the second and third embodiments, a plurality of terminals 27 are mounted in one or two rows in the case 26 as described above.

[0025]

According to the first to fifth aspects of the present invention, the level of attenuation and delay of a transmission signal becomes extremely small so as not to cause any trouble, and ground bounce can be reduced. Light contact is made at the initial stage of the fitting with the conductor portion, and a sufficient contact pressure can be obtained when the fitting is completed.

[Brief description of the drawings]

FIG. 1 is a plan view showing an entire IC card connector device according to a first embodiment of the present invention.

FIG. 2 is a vertical sectional view of a main part of the IC card connector device shown in FIG.

FIG. 3 is an explanatory diagram of a connector.

FIG. 4 is an explanatory diagram illustrating a connector according to a second embodiment.

FIG. 5 is an explanatory diagram showing a connector according to a third embodiment.

6 (a) and 6 (b) are explanatory views showing separate terminals used for a connector for a conventional IC card connector device.

[Explanation of symbols]

 Reference Signs List 20 laminated board 22 connector 23 fitting groove 24, 24a connection pad portion 26 case 27 terminal 27a terminal portion 27b extension portion 27c first bent portion 27d first elastic piece 27e second bent portion 27f second elastic piece 27g Contact piece 27h Contact part 27j Stepped part 27k Part of first elastic piece 27d

Claims (5)

[Claims] 1. A terminal, an extension extending from one end of the terminal, and a first U-shaped member provided at an end of the extension.
A terminal comprising: a bent portion; an elastic piece extending from one end of the first bent portion to face the extension; and a contact piece formed at a tip of the elastic piece; A case, wherein when a printed board provided in the IC card connector device is inserted into the case, a conductor provided on the printed board contacts the contact piece and one of the contact piece or the elastic piece. A connector for an IC card connector device, wherein the portion is repressed on the terminal portion side of the extension portion. 2. The connector for an IC card connector device according to claim 1, wherein a conductor of said printed board is brought into contact with said elastic piece. 3. The connector for an IC card connector device according to claim 2, wherein said connector is attached to said case in a state where said two contact pieces face each other. 4. A terminal, an extension extending from one end of the terminal, and a first U-shaped member provided at an end of the extension.
Bent portion, a first elastic piece extending from one end of the first bent portion to face the extension portion, and a U-shaped second bent portion provided at an end of the first elastic piece. Department and
A terminal comprising: a second elastic piece extending from one end of the second bent portion to face the first elastic piece; and a contact piece formed at a tip of the second elastic piece; An insulating case to be attached, wherein when the printed board provided in the IC card connector device is inserted into the case, the conductor of the printed board contacts the contact piece and the second elastic piece A connector for an IC card connector device, wherein a part of the connector is repressed on a terminal side of the extension. 5. The connector for an IC card connector device according to claim 4, wherein said two contact pieces are attached to said case in a state where they face each other.