JPH0917479A - Fixing method of card connector - Google Patents

Abstract

PURPOSE: To prevent the solder peeling or solder cracking caused by the stress at the time of correction by screwing of a card connector or the inserting of an IC card, and enhance the mounting freedom of a base mounting part. CONSTITUTION: A card insert part 1a and a base mounting part 2a are fixed to a base 4a by separate fixing means, respectively, and the card insert part 1a is electrically connected to the base mounting part 2a by flexible connecting means 3a.

Description

Detailed Description of the Invention

[0001]

This invention relates to surface mounting technology (SM
The present invention relates to a method for fixing a card connector in T), and particularly to a method for fixing an IC card connector to a printed circuit board or the like.

[0002]

2. Description of the Related Art FIGS. 6 to 8 are explanatory views of a conventional example, and a conventional example will be described below with reference to the drawings.

In FIG. 6, FIG. 6 (a) is a plan view of an IC card connector, showing the IC card insertion portion 1 and the IC.
The screw hole 12 for fixing the card insertion part 1 is shown. FIG. 6B is a side view and FIG. 6C is a right side view. These side views are ICs which are IC card connectors.
The state before fixing the card insertion part 1 and the printed circuit board mounting part 2 to the printed circuit board 4 with the screw 5 is shown. The printed circuit board mounting unit 2 includes the IC card insertion unit 1 and the printed circuit board 4
And electrical and mechanical connection.

In the conventional method for fixing an IC card connector, first, the terminals of the printed board mounting portion 2 are connected to predetermined portions of the printed board 4 by soldering or the like. After that, the IC card insertion part 1 was connected to the printed circuit board mounting part 2, and the printed circuit board mounting part 2 and the IC card insertion part 1 were simultaneously fixed to the printed circuit board 4 at the same position by using screws 5 or the like.

FIG. 6D shows a state after the IC card insertion portion 1 is connected to the printed board mounting portion 2. In this state, the printed circuit board mounting portion 2 and the IC card insertion portion 1 are fixed to the printed circuit board 4 by tightening screws with the screws 5.

FIG. 7 is an explanatory view of a case where a printed circuit board of the conventional example is warped, and a solid line circle is an enlarged circle circle of a dotted line. When the printed circuit board is warped, the soldering 4 between the terminal 21 of the printed circuit board mounting portion 2 and the printed circuit board is performed as shown by the solid circle in FIG.
Peeling occurs at the connection part of 1.

FIG. 8 is an explanatory view of the stress associated with the insertion of the IC card of the conventional example, and the solid line circle is an enlargement of the dotted line circle. Even if the IC card insertion unit 1 is mounted after the printed circuit board mounting unit 2 and the printed circuit board 4 are screwed to prevent the solder from peeling off, the IC card 9 is
When the card is inserted into the C card insertion portion 1 from the direction of the arrow A, the stress F in the direction of the arrow at the time of the insertion causes the solder 4 which is a connecting portion between the terminal 21 of the printed circuit board mounting portion 2 and the printed circuit board 4.
Solder crack occurs at 1.

[0008]

The above-mentioned prior art has the following problems. (1) As shown in FIG. 7, when the printed circuit board is warped, the solder 4 which is the connecting portion between the terminal 21 of the printed circuit board mounting portion 2 and the printed circuit board 4 is corrected by the screw tightening.
There was a case where peeling occurred in 1.

(2) As shown in FIG.
When the card is inserted into the card insertion part 1, the stress F in the arrow direction at the time of insertion may cause solder cracks in the solder 41 which is a connection part between the terminal 21 of the printed circuit board mounting part 2 and the printed circuit board 4.

The present invention solves such a conventional problem and corrects the IC card connector by tightening the screw,
It is an object of the present invention to prevent solder peeling and solder cracking due to stress when a card is inserted, and to increase the mounting flexibility of the printed circuit board mounting portion.

[0011]

FIG. 1 is a diagram for explaining the principle of the present invention. In FIG. 1, 1a is a card insertion portion, 2a is a board mounting portion, 3a is a flexible connecting means, 4a is a substrate, 5a is a fixing means. The present invention is configured as follows in order to solve the above problems.

The card insertion portion 1a and the board mounting portion 2a are
The card insertion part 1 is fixed by separate fixing means.
a and the board mounting portion 2a are electrically connected by a flexible connecting means 3a.

A cable is used as the flexible connecting means 3a for connecting the card insertion portion 1a and the board mounting portion 2a. Further, the card insertion portion 1a
A flexible printed circuit board is used as the flexible connecting means 3a for connecting the board mounting portion 2a and the board mounting portion 2a.

Further, the card insertion portion 1a is fixed to the housing, the board mounting portion 2a is fixed to a printed circuit board, and the card insertion portion 1a and the board mounting portion 2a are connected by a cable.

Further, the card insertion portion 1a is fixed to the housing, the board mounting portion 2a is fixed to the printed circuit board, and the card insertion portion 1a and the board mounting portion 2a are connected by a flexible printed circuit board.

[0016]

The operation of the present invention based on the above construction will be described. The card insertion portion 1a and the board mounting portion 2a are fixed by separate fixing means, respectively, and then the card insertion portion 1a and the board mounting portion 2a are electrically connected by the flexible connecting means 3a. . Therefore, even if the substrate 4a to be fixed is warped, the correction by the screw tightening of the card insertion portion 1a does not reach the substrate mounting portion 2a, so that the terminal portion of the substrate mounting portion 2a can be prevented from being peeled off. , Card insertion part 1
It is also possible to prevent solder cracks that occur in the terminal portions of the board mounting portion 2a due to the stress during insertion when inserting into a.

A cable is used as the flexible connecting means 3a for connecting the card insertion portion 1a and the board mounting portion 2a. Therefore, even if the substrate 4a to be fixed is warped, the correction by the screw tightening of the card insertion portion 1a does not reach the substrate mounting portion 2a, so that the terminal portion of the substrate mounting portion 2a can be prevented from peeling off the solder. When inserting the card into the card insertion portion 1a, it is possible to prevent solder cracks generated in the terminal portion of the board mounting portion 2a due to stress at the time of insertion, and further, to prevent the card insertion portion 1a fixed at a distant position. The board mounting portion 2a can be easily connected using a cable connector or the like.

Further, a flexible printed circuit board is used as the flexible connecting means 3a for connecting the card insertion section 1a and the board mounting section 2a. For this reason, since a thin flexible printed circuit board is used as the connecting means, the connection space can be reduced, and since the cable connector or the like is not used, the connection becomes simpler, and even if the board 4a is warped, the card insertion portion 1a can be Correction by tightening screws does not reach the board mounting portion 2a, and the board mounting portion 2a
It is possible to prevent the solder from peeling off the terminal portion of the above, and further to prevent the solder crack which is generated in the terminal portion of the board mounting portion 2a due to the stress at the time of inserting the card into the card inserting portion 1a.

Further, the card insertion portion 1a is fixed to the housing, the board mounting portion 2a is fixed to the printed board, and the card insertion portion 1a and the board mounting portion 2a are connected by a cable. Therefore, the correction of the card insertion portion 1a by tightening the screw or the like does not reach the board mounting portion 2a, so that it is possible to prevent the terminal portion of the board mounting portion 2a from peeling off the solder, and further, to insert the card into the card insertion portion 1a. At this time, it is possible to prevent a solder crack generated in the terminal portion of the board mounting portion 2a due to the stress at the time of insertion, and to secure a component mounting area corresponding to the area of the card insertion portion 1a on the printed board.

Further, the card insertion portion 1a is fixed to the housing, the board mounting portion 2a is fixed to the printed board, and the card insertion portion 1a and the board mounting portion 2a are connected by a flexible printed board. For this reason, since a thin flexible printed circuit board is used as the connecting means, the connecting space can be reduced, and since the cable connector or the like is not used, the connection becomes easier, and moreover, the card insertion portion 1
Correction by tightening the screw of a does not reach the board mounting part 2a,
It is possible to prevent the solder from peeling off the terminal portion of the board mounting portion 2a, and further, when inserting the card into the card insertion portion 1a,
It is possible to prevent solder cracks generated in the terminal portion of the board mounting portion 2a due to the stress at the time of insertion, and to secure a component mounting area corresponding to the area of the card insertion portion 1a on the printed board.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, an IC card connector is divided into an IC card insertion part and a printed circuit board mounting part, which are individually fixed to a printed circuit board or the like with screws or the like. And are electrically connected by a flexible connecting means such as a cable.

2 to 5 are views showing an embodiment of the present invention, and an embodiment of the present invention will be described below with reference to FIGS. 2 to 5. 1): Description of connecting the card insertion portion and printed circuit board mounting portion with a cable FIG. 2 is an explanatory view of connecting with a cable according to the embodiment, FIG. 2A is a plan view, and FIG. Is a side view, and FIG. 2C is a side view after connecting the cables.

In FIG. 2A, I provided separately
C card insertion section 1, printed circuit board mounting section 2, and this IC
The cable 3 which electrically connects the card insertion part 1 and the printed circuit board mounting part 2 is shown.

A cable connector 31 for electrically connecting the IC card insertion portion 1 and the cable 3 and a cable connector 32 for electrically connecting the printed circuit board mounting portion 2 and the cable 3 are attached to the cable 3. The screw hole 12 is for inserting a screw for fixing the IC card insertion portion 1 to the printed circuit board.

The side view of FIG. 2B shows a state in which the IC card insertion portion 1 which is an IC card connector and the printed circuit board mounting portion 2 are separated and fixed on the printed circuit board 4. The IC card insertion part 1 is screwed on the printed circuit board 4
The printed circuit board mounting portion 2 is fixed to the printed circuit board 4 by soldering the terminals. The printed circuit board mounting portion 2 does not need any other fixing means, but may be provided with another fixing means such as a screw.

The side view of FIG. 2C shows a state in which the IC card insertion portion 1 fixed to the printed board 4 and the printed board mounting portion 2 are connected by the cable 3.
In this way, even if the printed circuit board 4 is warped,
The correction by tightening the screw of the IC card insertion part 1 does not reach the printed circuit board mounting part 2, so that the terminal part of the printed circuit board mounting part 2 can be prevented from being peeled off from the solder, and the IC card is inserted into the IC card insertion part 1. In doing so, it is also possible to prevent solder cracks that occur in the terminal portions of the printed circuit board mounting portion 2 due to stress during insertion.

2): Description of connection with FPC (flexible printed circuit board) FIG. 3 is an illustration of connection with FPC.
3A is a plan view, FIG. 3B is a side view, and FIG.
It is a side view after PC connection.

In FIG. 3 (a), the I provided apart from each other.
C card insertion section 1, printed circuit board mounting section 2, and this IC
FPC 6 in which printed wiring is provided on a flexible substrate that electrically connects the card insertion portion 1 and the printed circuit board mounting portion 2
Is shown.

The FPC 6 is provided with a contact portion (contact portion) 62, one end of which is connected to the IC card insertion portion 1 by soldering and the other end of which is inserted and connected to the printed board mounting portion 2. The screw holes 12 are for fitting the screws 5 to fix the IC card insertion portion 1 to the printed circuit board.

The side view of FIG. 3B shows a state in which the IC card insertion portion 1 which is an IC card connector and the printed circuit board mounting portion 2 are separated and fixed on the printed circuit board 4. The IC card insertion part 1 is screwed on the printed circuit board 4
The printed circuit board mounting portion 2 is electrically (mechanically) connected (fixed) to the printed circuit board 4 by soldering the terminals.

The side view of FIG. 3C shows a state in which the IC card insertion portion 1 fixed to the printed board 4 and the printed board mounting portion 2 are connected by the FPC 6. By doing so, the thin FPC 6 is used as the connecting means.
Since the connection space can be made smaller, the connection can be made easier because no cable connector is used, and even if the printed circuit board 4 warps, the IC card insertion part 1 can be corrected by tightening the screw to mount the printed circuit board. It is possible to prevent the solder from peeling off the terminal portion of the printed circuit board mounting portion 2 as well as the portion 2. Further, when the IC card is inserted into the IC card insertion portion 1, the printed circuit board mounting portion 2 has a stress due to the insertion. It is also possible to prevent solder cracks occurring in the terminals.

FIG. 4 is an explanatory view for changing the FPC connector position. In FIG. 4, the printed circuit board mounting portion 2 which is the FPC connector is changed from the dotted line position to the solid line position and fixed to the printed circuit board. In this case, the position of the contact portion 62 of the FPC 6 is also the printed circuit board mounting portion 2.
The shape of the FPC 6 is changed so as to match the position of. In this way, the printed board mounting portion 2 can be fixed to the printed board 4 at any position.

3): Description of Fixing IC Card Insertion Part to Case FIG. 5 is an explanation of fixing IC card insert part to the case, and FIG. 5 (a) is description of cable connection. , Fig. 5
(B) is an explanation in the case of FPC connection.

In FIG. 5A, the IC card insertion portion 1
Is fixed to the housing 8 (for example, the housing of an information processing device such as a personal computer) provided with this IC card connector with screws 5 or the like. The printed circuit board mounting portion 2 fixes its terminals to the printed circuit board 4 with solder or the like. After that, with the cable 3 having the cable connectors 31 and 32, the IC card insertion portion 1
And the printed circuit board mounting portion 2 are electrically connected. Therefore, the area for installing the IC card insertion portion 1 on the printed circuit board 4 becomes unnecessary.

Also in this case, even if the printed circuit board 4 is warped, the correction by the screw tightening of the IC card insertion part 1 does not reach the printed circuit board mounting part 2, and the solder peeling of the terminal part of the printed circuit board mounting part 2 is prevented. Further, when the IC card is inserted into the IC card insertion portion 1, it is possible to prevent solder cracks that may occur in the terminal portion of the printed circuit board mounting portion 2 due to the stress at the time of insertion, and the IC card insertion portion 1 can be prevented. There is an advantage that the component mounting area corresponding to the area can be secured in the printed circuit board 4.

In FIG. 5B, the IC card insertion portion 1
Is fixed to the housing 8 (for example, the housing of an information processing device such as a personal computer) provided with this IC card connector with screws 5 or the like. The printed circuit board mounting portion 2 fixes its terminals to the printed circuit board 4 with solder or the like. One end of the FPC 6 is connected to the IC card insertion portion 1 by soldering or the like, and the contact portion (contact portion) at the other end is inserted into the printed board mounting portion 2. As a result, the IC card insertion section 1 and the printed circuit board mounting section 2 are electrically connected. Therefore, the IC on the printed circuit board 4
An area for installing the card insertion part 1 is not necessary.

Also in this case, the thin FPC 6 is used as the connecting means.
Since the connection space can be made smaller, and the cable connector is not used, the connection process is simple, and even if the printed circuit board 4 warps, the IC card insertion part 1 can be corrected by tightening the screw to mount the printed circuit board. It is possible to prevent the solder from peeling off the terminal portion of the printed circuit board mounting portion 2 as well as the portion 2. Further, when the IC card is inserted into the IC card insertion portion 1, the printed circuit board mounting portion 2 has a stress due to the insertion. It is possible to prevent solder cracks that occur in the terminal portion, and it is possible to secure a component mounting area corresponding to the area of the IC card insertion portion 1 in the printed board 4.

[0038]

As described above, the present invention has the following effects. : The card insertion part and the board mounting part are fixed by separate fixing means respectively, and the card insertion part and the board mounting part are electrically connected by a flexible connecting means, so that the card insertion part and the board mounting part are fixed to a board or the like to be fixed. Even if warpage occurs, correction by tightening the screw of the card insertion part does not reach the board mounting part, it is possible to prevent solder peeling of the terminal part of the board mounting part, and when inserting the card into the card insertion part, It is also possible to prevent solder cracks that occur in the terminal portion of the board mounting portion due to stress during insertion.

Since a cable is used as a flexible connecting means for connecting the card insertion section and the board mounting section, even if the board to be fixed is warped, the card mounting section is rectified by screwing the board mounting section. It is possible to prevent the solder from peeling off the terminal part of the board mounting part, and also to prevent the solder crack that occurs in the terminal part of the board mounting part due to the stress at the time of inserting the card into the card insertion part. Further, the card insertion part and the board mounting part, which are fixed at separate positions, can be easily connected by using a cable connector or the like.

Since a flexible printed board is used as a flexible connecting means for connecting the card insertion section and the board mounting section, the connecting means can be thin and the connection space can be reduced, and since no cable connector or the like is used. Connection is easier. Moreover, even if the board is warped, the card mounting section is not corrected by tightening the screw or the like to prevent the terminal section of the board mounting section from peeling off the solder. It is also possible to prevent solder cracks that may occur in the terminal portion of the board mounting portion due to stress during insertion.

Correcting by fixing the card insertion part to the housing, fixing the board mounting part to the printed board, and connecting the card insertion part and the board mounting part with a cable, by tightening a screw of the card insertion part. Since it does not reach the board mounting part, it is possible to prevent the solder from peeling off the terminal part of the board mounting part.In addition, when inserting the card into the card insertion part, the solder generated at the terminal part of the board mounting part due to the stress during insertion. It is possible to prevent cracks and secure a component mounting area corresponding to the area of the card insertion portion on the printed circuit board.

Since the card insertion part is fixed to the housing and the board mounting part is fixed to the printed circuit board, and the card insertion part and the board mounting part are connected by the flexible printed circuit board, the connecting means becomes thin and the connection space becomes small. Can be made smaller, and the connection is simpler because no cable connector is used. In addition, correction by tightening the screw of the card insertion part does not reach the board mounting part, and solder peeling of the terminal part of the board mounting part is prevented. Furthermore, when inserting the card into the card insertion portion, it is possible to prevent solder cracks that occur in the terminal portion of the board mounting portion due to stress at the time of insertion, and
A component mounting area corresponding to the area of the card insertion portion can be secured on the printed board.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is an explanatory diagram when connecting with a cable in the embodiment.

FIG. 3 is an explanatory diagram when connecting by FPC in the embodiment.

FIG. 4 is an explanatory diagram for changing the FPC connector position in the embodiment.

FIG. 5 is an explanatory diagram of a case where the IC card insertion portion in the embodiment is fixed to the housing.

FIG. 6 is an explanatory diagram of a conventional example.

FIG. 7 is an explanatory diagram when a printed circuit board of a conventional example is warped.

FIG. 8 is an explanatory diagram of stress associated with insertion of an IC card in a conventional example.

[Explanation of symbols]

 1a Card Inserting Section 2a Board Mounting Section 3a Flexible Connecting Means 4a Board 5a Fixing Means

Claims (5)

[Claims] 1. The card insertion part and the board mounting part are fixed by separate fixing means, respectively, and the card insertion part and the board mounting part are electrically connected by a flexible connecting means. How to fix the card connector. 2. The method of fixing a card connector according to claim 1, wherein a cable is used as the flexible connecting means for connecting the card insertion portion and the board mounting portion. 3. The method for fixing a card connector according to claim 1, wherein a flexible printed circuit board is used as the flexible connecting means for connecting the card insertion section and the board mounting section. 4. The card insertion part is fixed to a housing, the board mounting part is fixed to a printed circuit board, and the card insertion part and the board mounting part are connected by a cable. How to fix the described card connector. 5. The card insertion part is fixed to a housing, the board mounting part is fixed to a printed circuit board, and the card insertion part and the board mounting part are connected by a flexible printed circuit board. Item 2. A method for fixing a card connector according to Item 1.