JPH08162199A - Card connector - Google Patents

Abstract

PURPOSE: To eliminate the insertion molding of a base together with an armature member to inhibit an electrode contact from protruding on the base by pressing the fitting piece part of a rear piece member into a press fitting groove part composed of a pair of grooves provided on the bottom wall of the base. CONSTITUTION: Contact piece members 5, as they are linked to one side of a base 1 by a carrier 58, are inserted into recessed grooves 21 through an individual opening. At that time, the fitting piece parts 51 of the members 5 are pressed into press fitting grooves 33, and at the point of time when the end parts 51a of the fitting piece parts 51 abut on the end wall surfaces of the groove part 33, engaging claws 55 are inserted into holes provided with the engaging surfaces 34, and then the carrier 58 is separated from the members 5. Like this, contact piece members 6, directly provided by a carrier 68 to the other side of the base 1, are inserted into an individual recessed groove 22. At that time, the end parts 61a of the fitting piece parts 61 of the members 6 are pressed into press fitting grooves 33, and at the point of time when the end parts 61a abut on the end wall surfaces of the groove parts 35, engaging claws 65 engage with engaging surface 36, and then, the carrier 58 is separated from the carrier 58. When a cover is closed, the electrode contact parts 53 and 63 of the members 5 and 6 are elastically contacted with the surface electrode of a card to form a conductive condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card connector, and more particularly to a microminiature SIM (Subscriber Identity Module) which is a module for identifying the identity of a subscriber such as a telephone subscriber.
dule) Card connector for use with cards.

[0002]

2. Description of the Related Art A conventional card connector of this type is described in Japanese Patent Publication No. 5-502959, which is shown in FIG.
And FIG. This card connector is intended for use with the SIM card having vertical and horizontal dimensions of 25 × 15 mm. This card connector includes a base 100 made of synthetic resin, a cover 110 that is openably and closably attached to the base 100, and a plurality of contact piece members 120 that are insert-molded together with the base 100 and fixed to the base 100 in a predetermined arrangement. have. Each of the plurality of contact piece members 120 includes an electrode contact portion 121 corresponding to a surface electrode (not shown) on the card C side, an elastic piece portion 122 that enables elastic displacement of the electrode contact portion 121, and further a base. The mounting piece 123 embedded in the synthetic resin layer 100 and the connection terminal 12 to be soldered to the wiring board P
4 is integrated.

In this card connector, the elastic piece portion 122 of each contact piece member 120 is elastically deformed when the electrode contact portion 121 is pressed by the surface electrode of the card C. The electrode contact portion 121 accompanying the elastic deformation of the elastic piece 122 is
It is necessary to form a space for allowing the displacement of the.

By the way, like the above card connector,
In the case where the base 100 is insert-molded together with the contact piece members 123, the space for allowing the displacement of the electrode contact portion 121 is necessarily formed by the opening 101 as shown in FIGS. 18 and 19. .

[0005]

The opening 1 is formed in the base 100.
01 is formed and the electrode contact portion 121 is displaced in the opening 101 of the conventional card connector, as shown in FIG.
When the wiring board P is mounted on the wiring board P, the electrode contact portion 121 displaced in the opening 101 interferes with the surface of the wiring board P, and the electrode contact portion 121 damages the wiring board P or damages the electrode contact portion 121. When the base 100 overlaps the circuit pattern of the wiring board P, the electrode contact portion 121 may erroneously contact the circuit pattern.

Therefore, conventionally, the base 100 is mounted in the opening formed in the wiring board P, or the circuit pattern is not provided in the mounting portion of the base 100 in the wiring board P. It was

However, in a device in which it is remarkably required to increase the mounting density of various electronic components such as an electronic circuit incorporated in a mobile phone, the card connector base 100 is mounted at a mounting position. If there is a restriction such that the circuit pattern cannot be formed, the dead space where the circuit pattern cannot be formed becomes large, which becomes an obstacle in increasing the mounting density of electronic components and effectively utilizing the wiring board surface. As a result, promotion of miniaturization of equipment is hindered.

The present invention has been made in view of the above circumstances.

An object of the present invention is that it is not necessary to insert-mold a synthetic resin base together with a contact piece member, and the electrode contact portion is pressed by the surface electrode of the card to elastically deform the elastic piece portion of the contact piece member. It is an object of the present invention to provide a card connector in which there is no risk of the electrode contact portion protruding to the back side of the base when the above is done.

Another object of the present invention is to provide a card connector which can effectively utilize an overlapping portion of a wiring board in which bases are arranged in an overlapping manner as a formation portion of a circuit pattern.

Another object of the present invention is to propose a novel locking structure for the base and cover in the card connector.

Still another object of the present invention is to facilitate the production of the elements constituting the above lock structure and to improve the usability of the lock structure.

Still another object of the present invention is to provide a microminiature card connector intended for use with the SIM card with sufficient strength.

[0014]

A card connector according to a first aspect of the present invention comprises a base made of synthetic resin, a cover openably and closably attached to the base, and a bottom wall of the base, which is opposed to the cover. Of the card held on the cover side while the press-fitting groove portion formed by a pair of grooves opened at the end edge of the card and the elastic piece portion extending to the mounting piece portion held in the press-fitting groove portion in the press-fitting state. A contact piece in which an electrode contact portion, which comes into contact with the surface electrode when the cover is closed, is provided in the elastic piece portion, and a connecting terminal portion protruding from the edge of the bottom wall is extended to the mounting piece portion. And a member.

The card connector of the invention according to claim 2 is
The card connector according to claim 1, wherein the bottom wall of the base is arranged so as to overlap the wiring board, and the card connector of the invention according to claim 3 is the card connector according to claim 1. In the above card connector, the bottom wall of the base is arranged so as to be overlapped with the circuit pattern forming portion of the wiring board having the circuit pattern.

The card connector of the invention according to claim 4 is
The card connector according to claim 2 or 3,
The connection terminal portion protruding from the edge of the bottom wall of the base is extended to the attachment piece portion of the contact piece member.

The card connector of the invention according to claim 5 is
3. The card connector according to claim 1, wherein one end of the cover is pivotally attached to one end of the base so as to be openable and closable, and the holding plate is slidably held on the back side of the cover, and the surface of the holding plate is also held. The non-slip non-slip portion provided on the side is fitted into the opening formed in the cover, and the holding plate is provided with a rib portion projecting to the back side, and one end of the rib portion has a recessed engagement portion. Whereas the mating groove is provided, an opening into which the rib portion fits when the cover is closed is formed at a position on the bottom wall of the base that does not face the electrode contact portion of the contact piece member. An engaging piece portion into which the engaging groove of the pressing plate is fitted and removed is provided at the end edge portion of the.

The card connector of the invention according to claim 6 is
The card connector according to claim 5, wherein the holding plate is made of synthetic resin.

According to a seventh aspect of the present invention, there is provided a card connector,
7. The card connector according to claim 6, wherein a part of a portion of the surface of the holding plate facing the opening of the card is provided with a non-slip portion, and an indicator showing the sliding direction of the holding plate is clearly shown in an uneven shape on the other portion. It is that.

The card connector of the invention according to claim 8 is
Claim 1, Claim 2, Claim 3, Claim 4, Claim 5,
The card connector according to any one of claims 6 and 7, wherein the cover has a size capable of holding a SIM card having a size of 25 × 15 mm in length and width on the back surface side.

The card connector of the invention according to claim 9 is
In the card connector according to claim 8, the cover is made of metal.

[0022]

According to the invention of claim 1, the contact piece member is attached to the base by press-fitting the attachment piece portion of the contact piece member into the press-fitting groove portion formed by a pair of grooves provided on the bottom wall of the base. , It becomes unnecessary to insert-mold the synthetic resin base together with the contact piece member. Therefore, it is not necessary to form an opening required for insert molding at the attachment position of the contact piece member on the base. Therefore, when the bottom wall of the base faces the elastic piece portion or the electrode contact portion of the contact piece member and the electrode contact portion is pressed by the surface electrode of the card, the elastic piece portion of the contact piece member is elastically deformed. The bottom wall of the base prevents the electrode contact portion from protruding to the back side of the base.

When the bottom wall of the base is arranged so as to overlap the wiring board as in the inventions according to claim 2, claim 3 and claim 4, the above electrode contact portion is provided. The effect that the bottom wall of the base prevents the sticking out of the back side of the base is particularly beneficial. That is, there is no possibility that the electrode contact portion protruding to the back side of the base interferes with the wiring board and damages the electrode contact portion or the wiring board. Particularly, in the invention according to claim 3, the electrode contact portion is the wiring. There is no risk of accidental contact with the circuit pattern on the board. Therefore, it becomes possible to form a circuit pattern also on a portion of the wiring board where the card connector is mounted.

In the invention according to claim 5, when the cover is closed, the rib portion of the pressing plate fits into the opening of the bottom wall of the base. Therefore, when the cover is closed and the press plate is slid with the finger that touches the anti-slip part of the press plate, the engagement groove of the rib part fits the engagement piece part of the base side and the cover locks to the base. To be done. The lock is released by sliding the holding plate in the opposite direction.

When the presser plate is made of synthetic resin as in the invention according to claim 6, the presser plate holds the above-mentioned non-slip portion of the non-slip and the non-uniform display indicating the sliding direction of the invention according to the seventh aspect. It can be provided in an uneven shape at the same time when the plate is formed.

According to the invention of claim 8, it is possible to use an ultra-small SIM (Subscriber Identity Module) card which is a module for identifying the identity of a subscriber such as a telephone subscriber. According to the invention of claim 1, the metal cover ensures the strength required for the microminiature card connector using such a card.

[0027]

1 is a plan view of a base 1 in which contact piece members 5, 6, 7 are incorporated in a card connector according to an embodiment of the present invention, FIG. 2 is a view taken along the line II of FIG. 1, and FIG. III-of 1
III line arrow view, FIG. 4 is a sectional view taken along the line IV-IV of FIG. 1 when mounted on the wiring board P, and FIG. 5 is a VV line of FIG. 1 when mounted on the wiring board P. 5 is an enlarged view of the VI portion of FIG. 5, FIG. 7 is an enlarged view of the VII portion of FIG. 5, FIG. 8 is a sectional view of FIG. 1 taken along the line VIII-VIII, and FIG. 9 is a contact piece to the base 1. Explanatory drawing which shows the press-fitting process of the members 5,
10 is a plan view of the card connector, FIG. 11 is a schematic perspective view showing the cover 4 and the pressing plate 9, FIG. 12 is a side view showing the operation of the cover, and FIG. 13 is XIII-XII of FIG.
FIG. 14 is a sectional view showing a part of the portion along the line I in an enlarged view, FIG. 14 is a sectional view in a card set state in the card connector of the embodiment of the present invention, and FIG. 15 is a state in which the base and the cover are not locked. 16 is a sectional view when the base and the cover are locked.

In FIG. 1, reference numeral 1 is a base made of a synthetic resin molding having excellent electric insulation. In the base 1, the bottom wall 2 has contact piece member disposing spaces S1 and S2 defined on both sides thereof with a substantially central portion as a boundary.

One space S1 is a rib-shaped edge frame portion 2
It is surrounded by 3, 24, 25. Then, in the portion partitioned as the space S1,
The bottom wall 2 is provided with concave grooves 21 in three rows, and
Edge frame portions 24, 2 on both sides of the concave grooves 21 ...
Vertically long openings 26 and 27 are formed at the adjacent positions of 5. From these openings 26, 27, narrow portions 26a, 2
7a are arranged in series. Further, the two corner portions formed by the edge frame portions 23, 24 and the edge frame portions 23, 25 are provided with step portions 28, 29, respectively, and one of the step portions 29 has the step portion. A step 31 slightly taller than 29 is attached. As can be inferred from FIG. 1, in these three step portions 28, 29, 30 the two step portions 28, 29 distributed to both sides of the bottom wall 2 are provided.
Is useful for positioning the card C in the width direction W of the base 1 by fitting the card C shown by phantom lines in the figure between them, and the other one step 31
Cooperates with the slanted edge C1 provided on the card C to help ensure the proper setting posture of the card C. That is, when the card C is set so that the three corners of the card C other than the slanted edge C1 correspond to the step 31, the corners ride on the step 31 and the cover 4 to be described later is described. You can no longer close.

Three openings 32 ... Opened side by side in the edge frame portion 23 communicate with each of the three rows of the concave grooves 21 ... As shown in FIGS. 2 and 6, a press-fitting groove portion 33 formed of a pair of grooves facing each other is attached to each of the three rows of concave grooves 21 ... And the three openings 32. Further, as shown in FIG. 6, each of the concave grooves 21 is provided with an engagement surface 34 which is a hole wall of a hole formed so as to penetrate the bottom wall 2.

Also in the portion defined as the other space S2, the bottom wall 2 is provided with concave grooves 22 in three rows. These concave grooves 21 ... Are open at the edge of the bottom wall 2. Further, as shown in FIGS. 3 and 7, each of the three rows of concave grooves 22 is provided with a press-fitting groove portion 35 formed of a pair of grooves facing each other. Further, as shown in FIG. 7, each of the concave grooves 21 is provided with an engaging surface 36 which is a hole wall of a hole formed so as to penetrate the bottom wall 2.

Furthermore, a long groove 37 extending over both spaces S1 and S2 is provided in the bottom wall 2. This groove 37
2, the press-fitting groove portions 38 and 39 are separately provided for the spaces S1 and S2, respectively, and the edge frame portion 23 is provided with an opening 41 connected to the concave groove 37. It should be noted that both ends of the groove 37 are provided with engaging surfaces 37a and 37b which are hole walls of holes formed so as to penetrate the bottom wall 2.

As shown in FIG. 1, a pair of left and right ridges 11 and 11 are provided at the end of the bottom wall 2 in the longitudinal direction D, and the shafts 12 and 12 are externally attached to the ridges 11 and 11, respectively. It is projected in the direction. Further, adjacent to the shafts 12, 12, stoppers 13, 13 for restricting an opening limit of the cover 4 described later are provided.

The contact piece members 5, 6 which are press-fitted into the press-fitting groove portions 33, 35 and held in the above-mentioned concave grooves 21, 22.
And two kinds of contact piece members 7 and 8 (see FIG. 5) which are press-fitted and held in the press-fitting groove portions 38 and 39 are provided in the concave groove 37.

As shown in FIG. 4, the contact piece member 5 provided in the concave groove 21 on the one side of the space S1 has a mounting piece portion 51 and an elastic member extending obliquely to the mounting piece portion 51. One piece 5
2, a curled electrode contact portion 53 extending to the tip of the elastic piece portion 52, and a connecting terminal portion 54 provided on the mounting piece portion 51 and extending to the opposite side of the elastic piece portion 52. And the electrode contact portion 53 are plated to enhance contact reliability with the counter electrodes (surface electrodes T1, T2 of the card C: described later). .
The attachment piece portion 51 is wider than other portions such as the elastic piece portion 52, and the engaging claws 55 are in place.
Is cut and raised. The connection terminal portion 54 is bent in a stepped shape.

As shown in FIG. 4, the contact piece member 6 provided in the concave groove 22 on the other side of the space S2 has a mounting piece portion 61 and an elastic piece portion, like the contact piece member 5 described above. 62
And a metal strip member integrally having a plated electrode contact portion 63 and a connection terminal portion 64.
1 is wider than other portions such as the elastic piece portion 62, and the engaging claws 65 are formed by cutting and raising in appropriate places. The connection terminal portion 64 is bent in a stepped shape.

Further, the one contact piece member 7 provided in the groove 37 has a mounting piece portion 7 as shown in FIG. 5 or 7.
1, an intermediate piece portion 72 extending from the mounting piece portion 71, and a chevron-shaped elastic piece portion 73 extending obliquely to the intermediate piece portion 72,
A movable contact portion 74 extending to the tip of the elastic piece portion 73;
The metal strip is integrally provided with a connecting terminal portion 75 provided on the mounting piece portion 71 and extending to the opposite side from the intermediate piece portion 72. The electrode contact portion 53 has a mating electrode (fixed contact). (Part 83: to be described later) A plating process is performed to improve contact reliability. The mounting piece 71 is wider than other portions such as the elastic piece 52, and the engaging claws 76 are formed by cutting and raising in appropriate places. The connection terminal portion 54 is bent in a stepped shape.

On the other hand, the contact piece member 8 has the structure shown in FIG.
As shown in FIG. 8, the mounting piece portion 8 including the fixed contact portion 83
1 and a connecting terminal portion 82 extending from the mounting piece portion 81 are integrally formed of a metal strip, and the fixed contact portion 83 is plated to enhance the contact reliability with the movable contact portion 74. Has been processed. The attachment piece 81 is wider than the other portions, and the engaging claws 84 are formed by cutting and raising in appropriate places. The connection terminal portion 82
Is folded into a stepped shape.

FIG. 9 shows the press-fitting groove portions 33 ..., 35 ...
It is explanatory drawing which shows the process of press-fitting the contact piece members 5 ..., 6 ... to. As can be seen from the figure, the contact piece members 5 ... Consecutively provided by the carrier 58 are conveyed to one side of the base 1 formed of, for example, a synthetic resin, and the contact piece members 5 ...
8 are inserted in the concave grooves 21 ... While passing through the individual openings 32 ... (See FIG. 2). At this time, the mounting piece portions 51 of the contact piece member 5 are press-fitted into the press-fitting concave grooves 33, and the end portions 51a of the mounting piece portions 51 ... Are end wall surfaces 3 of the press-fitting concave groove 33.
At the time of hitting 3a, the engaging claws 55 ... Fit into the hole provided with the engaging surface 34 and engage with the engaging surface 34 as shown in FIG. After this, the carrier 58 is separated from the individual contact piece members 5. Similarly, for example, the contact piece members 6 which are continuously provided by the carrier 68 are conveyed to the other side of the base 1 formed of, for example, a synthetic resin, and the contact piece members 6 are provided continuously by the carrier 68. It is inserted into each concave groove 22 ... At this time, when the mounting pieces 61 of the contact piece member 6 are press-fitted into the press-fitting concave grooves 35, and the end portions 61a of the mounting piece parts 61 abut the end wall surfaces 35a of the press-fitting concave grooves 35. The engaging claws 65 are fitted into the holes having the engaging surfaces 36 and engage with the engaging surfaces 36 as shown in FIG. After this, carrier 5
8 are separated from the individual contact pieces 5.

Although not shown, the fixed contact portion 83
The contact piece member 8 provided with and the contact piece member 7 provided with the movable contact portion 74 are respectively inserted into the concave grooves 37 ...
At that time, the attachment piece portions 81 and 71 of the contact piece members 8 and 7 are press-fitted into the press-fitting concave grooves 38 and 39, respectively, and the engaging claws 84 and 76 are provided.
Engage with the engaging surfaces 37a and 37b as shown in FIGS. 6 and 7, respectively.

As described above, the press-fitting groove portions 33, 35,
The contact piece members 5, which are press-fitted and held in 38 and 39,
6, 8, and 7, the connection terminals 54, 64, 8
The lower surface of 2, 75 is at the same level as the lower surface of the bottom wall 2 of the base 1.

The cover 4 shown in FIG. 11 is made of metal,
Similarly, the holding plate 9 is made of synthetic resin.

The cover 4 is formed by bending rib portions 44, 44 on both sides of a plate portion 43 having a rectangular opening 42, and these rib portions 44, 44 have long openings 45, 45.
And rib portions 44, 44 are further extended to one side to form arm portions 46, 46. The plate portion 43 has a card receiving portion 43a for receiving the card C.
Is formed by bending. And this arm part 4
Bearing holes 47, 47 formed in 6, 6 are fitted in the shaft bodies 12, 12 (see FIG. 1) on the base 1 side as shown in FIG. Therefore, the cover 4 can be opened and closed about the shafts 12, 12. Then, as shown in FIG. 12, the protrusion 48 provided on the arms 46, 46 hits the stopper 13 on the side of the base 1 so that the opening limit of the cover 4 is restricted.

The holding plate 9 made of synthetic resin has rib portions 92, which are formed on both sides of the flat plate portion 91 and project to the rear surface side of the flat plate portion 91.
92 is integrally provided. As shown in FIG. 10, on the surface of the flat plate portion 91, rectangular anti-slip portions 96 having a large number of parallel grooves are provided, and an arrow mark indicating the sliding direction of the holding plate 9 is provided on both sides thereof. 97a, 97a and its arrow display 97a, a character display 97 representing the meaning of 97a
b and 97b are clearly shown in an uneven shape. Then, the portions with these indications 97a and 97b and the anti-slip portion 96 are made thicker than the other portions so that they are a little closer than the plate surface of the flat plate portion 91. As shown in detail in FIG. 13, the rib portions 92, 92 are provided with groove portions 93, 93 facing each other.
The left and right ends of the card C can be held in a fitted manner by 93, and projections 94, 94 are provided on the outer surface sides of the ribs 93, 93. Further, recessed engagement grooves 95, 95 are provided at the ends of the ribs 93, 93.

As shown in FIG. 13, the holding plate 9 is pushed from the rear surface side of the cover 4 between the left and right rib portions 44, 44 so that the projections 94, 94 are attached to the rib portion 44 on the cover 4 side. , 44 to be slidably held by the cover 4. At the same time,
The thick-walled indications 97a, 97b and the portion with the slip prevention portion 96 are fitted into the opening 42 of the cover 4.

The stroke of the pressing plate 9 attached to the cover 4 by sliding is restricted by the projections 94, 94 hitting either the front or rear edges of the openings 45, 45. When the cover 4 is closed around the shafts 12 and 12, the rib portion 44 of the cover 4 and the rib portion 92 of the pressing plate 9 are fitted into the opening 26 on the base 1 side as shown in FIG. The engaging groove 95 of the rib portion 92 faces the engaging piece portion 15 formed by the edge portion of the opening 26 on the base 1 side. Therefore, when the pressing plate 9 is slid as shown by an arrow A in FIG. 16 with the cover 4 closed as shown in FIG. 15, the engaging groove 95 is fitted into the engaging piece portion 15 and both are engaged. To do. This locks the cover 4.
When the pressing plate 9 is slid from the state of FIG. 16 to the opposite side of the arrow A, the engagement groove 95 is disengaged from the engagement piece portion 15 and the engagement between the two is released. This releases the lock.

In the card connector described above, the six contact piece members 5, ..., 6 assembled into the base 1 by press fitting.
The six electrode contact portions 53, ..., 63 of ... are the six surface electrodes T1, ..., T2 ... provided in the card C shown in FIG.
It corresponds to.

When setting the card C, with the cover 4 opened as shown in FIG. 12, the groove 9 of the holding plate 9 is set.
The card C is inserted into the grooves 3 and 93, the card receiving portion 43a receives the edge of the card C, and the groove portions 93 and 93
Then, the left and right ends of the card C are held in a fitted state. After that, the cover 4 is closed around the shafts 12 and 12 to bring it to the state of FIG. 15, and then the non-slip portion 96 (see FIG. 14) of the holding plate 9 is pushed with a finger to slide the holding plate 9. Then, it is locked as shown in FIG. By doing so, the card C held by the holding plate 9 as shown in FIG.
, T2 ... of the six contacting members 5 ..., 63 ... of the six contact piece members 5, ..., 6 ... are pressed and brought into electrical contact with each other. In this case, the contact piece members 5, ..., 6 have the concave grooves 21 ..., 2 in which they are arranged.
Since they are opposed to the bottom surfaces of the grooves 2 ..., the contact piece members 5 ..., 6 ...
The electrode contact portions 53 ... 63 of the
, 22 ... may come into contact with the bottom surfaces of the grooves, but their electrode contact portions 53 ..., 63 ... may not project to the back side of the bottom wall 2 of the base 1. Therefore, FIG.
When the bottom wall 2 of the base 1 is placed on the wiring board P as described above, or when the bottom wall 2 of the base 1 is placed on the circuit pattern formed on the surface of the wiring board P. , 6 on the back side of the bottom wall 2 ...
3 ... does not protrude, let alone the electrode contact portions 53, ..., 63 protruding on the back side of the bottom wall 2 of the base 1, the wiring board P is damaged, or the electrode contact portions 53 ,.
There is no risk of damage to 63 ... Similarly, the circuit pattern of the wiring board P and the electrode contact portions 53, ...
It is not possible for 3 ... to make contact accidentally. The same applies to the contact piece member 7. The contact piece member 7 can be used as a sensor that cooperates with the other contact piece member 8 to detect whether or not the card C is properly set.

In this embodiment, when the cover 4 is closed, the cover 4 closes the edge frame portions 23, 2 on the base 1 side.
It is adapted to fit in the portion surrounded by 4, 25, so that the thickness of the entire card connector when the cover 4 is closed is the same as the thickness of the base 1. As a result, the card connector is made thinner. The cover 4 is made of metal so as to satisfy the required strength of the card connector, while achieving such a thin structure.

By the way, the card to be used for the card connector includes not only an IC card conforming to ISO7816 but also a SIM card having a length and width of 25 × 15 mm. The size of the SIM card is extremely smaller than that of the IC card. In addition, in the card connector used for the SIM card, the interval between the groove portions 93 of the pressing plate 9 needs to be a dimension corresponding to the width dimension of the SIM card, that is, a dimension slightly longer than 15 mm. Of course there is.

FIG. 17 shows the bottom wall 2 of the base 1 with the horizontal 4
In the card connector of the type in which the contact piece members 5, ..., 6 ... Of the same shape are attached to the rows by press fitting, press-fitting groove portions 33 ,.
It is explanatory drawing which shows the process of press-fitting the contact piece members 5, ..., 6 ... to 5 .... In this step, a step similar to the step described in FIG. 9 is performed. In FIG. 17, the same parts as those shown in FIG. 9 are designated by the same reference numerals and detailed description thereof is omitted.

[0052]

According to the invention of claim 1, it is not necessary to insert-mold a synthetic resin base together with a wiring board, and only the base is molded independently, and the contact piece member can be press-fitted into the molded base. Since it is configured to be attached, it is not necessary to form an opening in the bottom wall of the base at a position where the electrode contact portion of the contact piece member faces. Therefore, the electrode contact portion of the contact piece member is not pushed by the surface electrode of the card and protrudes to the back side of the base, and the electrode contact portion interferes with the mounting surface of the card connector, for example, the wiring board surface, and is damaged. There is no risk of damaging the wiring board surface.

According to the inventions of claims 2 and 3,
Since there is no risk of accidental contact of the electrode contact part with the circuit pattern of the wiring board, it becomes possible to form the circuit pattern at the place where the card connector is mounted on the wiring board, and the mounting density can be increased accordingly. become able to. The invention according to claim 4 has the same effect.

According to the invention of claim 5, there is an effect that the cover is provided with a lock function for the base.

According to the inventions of claims 6 and 7,
It is convenient that an uneven slip preventing portion of the pressing plate and an uneven display indicating the sliding direction can be provided at the same time when the pressing plate is formed.

According to the invention of claim 8, a microminiature S
It becomes possible to provide a card connector intended for use with an IM card. Further, according to the invention of claim 9, the strength required for such a card connector can be easily secured by the metal cover. Like

[Brief description of drawings]

FIG. 1 is a plan view of a base incorporating a contact piece member in a card connector according to an embodiment of the present invention.

FIG. 2 is a view taken along the line II in FIG.

FIG. 3 is a view taken along the line III-III of FIG.

FIG. 4 is the I of FIG. 1 with the base mounted on a wiring board;
It is sectional drawing which follows the V-IV line.

FIG. 5: V of FIG. 1 with the base mounted on a wiring board
It is sectional drawing which follows the -V line.

6 is an enlarged view of a VI portion of FIG.

7 is an enlarged view of a VII portion in FIG.

8 is a cross-sectional view taken along the line VIII-VIII in FIG.

FIG. 9 is an explanatory view of a press-fitting process of the contact piece member.

FIG. 10 is a plan view of a card connector.

FIG. 11 is a schematic perspective view showing a cover and a holding plate.

FIG. 12 is a side view showing the operation of the cover.

FIG. 13 is a cross-sectional view showing an enlarged part of a portion along the line XIII-XIII in FIG. 12.

FIG. 14 is a sectional view of the card connector of the embodiment of the present invention in a card set state.

FIG. 15 is a cross-sectional view when the base and the cover are not locked.

FIG. 16 is a cross-sectional view when the base and the cover are locked.

FIG. 17 is an explanatory view of a press-fitting process of a contact piece member in another type of card connector.

FIG. 18 is a plan view in which a part of a conventional card connector is cut away.

19 is a partial cross-sectional view of the card connector of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Bottom wall 4 Cover 5,6 Contact piece member 9 Holding plate 15 Engagement piece part 27 Opening 33,35 Press-fitting groove part 51,61 Mounting piece part 52,62 Elastic piece part 53,63 Electrode contact part 54,64 Connection terminal portion 91 Opening 92 Rib portion 95 Engaging groove 96 Non-slip portion 97a, 97b Display C card T1, T2 Surface electrode P Wiring board

Claims (9)

[Claims] 1. A press-fitting groove portion comprising a synthetic resin base, a cover that is openably and closably attached to the base, and a pair of grooves that are provided to face the bottom wall of the base and are open at the edges of the bottom wall. And an elastic piece extending from a mounting piece that is held in the press-fitting groove in a press-fitted state, and an electrode contact portion that contacts the surface electrode of the card held on the cover side when the cover is closed. And a contact piece member provided on the elastic piece portion. 2. The card connector according to claim 1, wherein the bottom wall of the base is arranged so as to overlap the wiring board. 3. The card connector according to claim 1, wherein the bottom wall of the base is arranged so as to overlap with the circuit pattern forming portion of the wiring board having the circuit pattern. 4. The card connector according to claim 2 or 3, wherein a connecting terminal portion projecting from an end edge of the bottom wall of the base is extended to a mounting piece portion of the contact piece member. 5. The card connector according to claim 1, wherein one end of the cover is pivotally attached to one end of the base so as to be openable and closable, and a holding plate is slidably held on the back side of the cover. The uneven anti-slip portion provided on the front surface side of the holding plate is fitted into the opening formed in the cover, and the holding plate is provided with a rib portion projecting to the back side, and one end portion of the rib portion is provided. While the recessed engagement groove is provided, an opening to which the rib portion fits when the cover is closed is provided at a location on the bottom wall of the base that does not face the electrode contact portion of the contact piece member. A card connector which is provided and is provided with an engaging piece portion at an end edge portion of the opening, into which an engaging groove of the pressing plate is fitted and removed. 6. The card connector according to claim 5, wherein the holding plate is made of synthetic resin. 7. The card connector according to claim 6, wherein a non-slip portion is provided in a part of the surface of the holding plate facing the opening of the card, and an indicator showing the sliding direction of the holding plate is provided in the other part. A card connector that is clearly marked on the surface. 8. The card connector according to claim 1, claim 2, claim 3, claim 4, claim 5, claim 6, or claim 7, wherein the cover has a vertical and horizontal dimensions of 25 ×. SIM with a size of 15 mm
A card connector that is large enough to hold the card on the back side. 9. The card connector according to claim 8, wherein the cover is made of metal.