JPH0635411Y2 - No-load insertion / extraction type IC card connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a connector for a card edge type IC card.

(Prior art and its problems) In recent years, IC cards such as highly integrated printed wiring boards have begun to be widely used. This IC card is roughly classified into a card edge type and a two-piece type. IC targeted by the present invention
The card is a card edge type, and the contact piece of the connector is a type that sandwiches the IC card from both sides.

The individual pressing force of this contact piece is not so large,
Since a large number of contact pieces are arranged side by side and are made to contact each other at the same time, the pressing force on the entire contact pin is considerable, and a large force is required when inserting / removing the IC card. Not only that, but it may also cause the card to bend.

As a solution to this problem, conventionally, for example, FIGS.
Various connectors shown in the figure are used. FIG. 9 (perspective view), FIG. 10 ((a) shows a sectional view at the time of attachment and detachment,
What is shown in (b) is a sectional view of the operating body when it is mounted. In this connector, contact pieces 2 each having a curved portion 2a as a contact portion are fixed in a plurality of rows in the insulating case 1 so as to face each other. It is supposed to be inserted, and also
A lever 3a is provided at the end, and the cam 4 is an insulator that is rotated by the operation body 3 that is rotatably provided by its operation.

When the IC card 5 is attached or detached, when the lever 3a is turned upward, the cam 4 is turned sideways as shown in FIG. 10 (a), and the contact pieces 2 and 2 are bent outward. As a result, the curved portion 2a is separated from the IC card 5, and the IC card 5 can be easily attached and detached.

After mounting the IC card 5, if you rotate the lever 3a in the lateral direction,
Since the cam 4 is in the vertical direction as shown in FIG. 10B and is separated from the contact pieces 2 and 2, the contact pieces 2 and 2 come into contact with the IC card 5 by their respective elastic forces.

However, in this type, since the cam 4 is long in the axial direction, it is easy to twist in the middle, and even if the cam is rotated by the lever 3a, the contact piece is completely separated on the lever side from the portion where the twist occurs, but the lever 3a
The other side far away from may be still in contact due to insufficient separation. For this reason, not only is it difficult to attach and detach the IC card 5, but also the cam 4 may crack due to screwing.

As a connector that solves this problem, there are connectors of the types shown in FIGS. 11 and 12. This type is a sliding cam type. Fig. 14 (a) is a longitudinal sectional view when the IC card is installed (IC card is omitted), and (b) is A- in (a).
A sectional view, FIG. 12 (a) is a longitudinal sectional view before the IC card is mounted (after being taken out), and (b) is a sectional view taken along the line BB shown in (a) (when the IC card 5 is inserted). It is a state of being).

In this connector, sliding plates 12 are provided in an insulating case 11 in the longitudinal direction, and a plurality of contact pieces 2 are planted in rows so as to face both side surfaces of the sliding plate 12. . The contact piece 2 is the same as the conventional contact piece. On the other hand, the sliding plate 12 is composed of a plurality of release position protrusions 12a, a sandwiching position recess 12b and a slope 12c between the release position protrusion 12a and the sandwiching position recess 12b on the lower side, and the contact piece 2 on the upper side. The release member 13 is slidable only in the longitudinal direction with respect to the sliding plate 12, and is engaged with each other so as to be integrated in the vertical direction. A groove 13a is opened on the upper side of the releasing member 13,
The lower end of the IC card 5 is inserted into this groove 13a. Jetties 13b and 13b are formed on both sides of the groove 13a.

A lever 14 is rotatably supported at one end of the sliding plate 12, and the lower end of the lever 14 extends to become a drive portion 14a.
It engages with a hole 11a formed in the lower part of the insulating case 11. The other end serves as a support protrusion 12d, which engages with a support hole 11b on the side surface of the insulating case 11.

It should be noted that the bottom of the insulating case 11 is provided with the release position protrusion 12a.
A projection 11c for moving the sliding plate 12 up and down is provided at a position facing the sliding plate 12 (a position facing the holding position recess 12b when the sliding plate 12 is displaced).

When inserting the IC card 5 into this connector, the lever 14 is tilted outward and the sliding plate 12 is pushed upward as shown in FIG. 12 (a), and the contact is made outside the jetty 13b of the release member 13. Piece 2
Since the curved portion 2a of the device is pushed outward, the IC card 5 can be inserted into the groove 13a of the release member 13 without applying force. Then, if the lever 14 is tilted inward, the holding recess 12b of the sliding plate 12 slides down the protrusion 11c along the slope 12c, and the curved portion 2a of the contact piece 2 contacts the IC card 5 by its elasticity. To do.

When the IC card 5 is pulled out, the operation is the reverse of the above, and the description thereof is omitted.

However, this connector has a drawback that the sliding plate 12 descends only by its own weight when the IC card 5 is pulled out, so that it is not sufficiently lowered. The solution to this problem is shown in FIG.

FIG. 13 is a side sectional view of the improved connector, in which (a) shows the IC card 5 installed (however, the IC card 5 is omitted), and (b) shows the IC card 5 removed. It is a thing. This connector is almost the same as the connector shown in FIGS.
Shape of the penetrating part and sliding plates 15 on both sides of the insulating case 16
The only difference is the shape of the penetrating part.

The penetrating portions at both ends of the sliding plate 15 are inclined surfaces 15a inclined inward on the lever 14 side, and the penetrating portions on the opposite side are inclined surfaces 15b inclined outward.

The through hole corresponding to the above-mentioned penetrating portion of the sliding plate 15 is the inclined surface 15
The same inclined surface 16a corresponds to a and the same inclined surface 16b corresponds to the inclined surface 15b.

Except for the penetrating part and the penetrating hole described above, the structure is the same as that shown in FIGS.

In this example, when the lever 14 is tilted inward, the sliding plate 15 and the insulating case 16 are engaged with the inclined surfaces 15a and 16a and 15b and 16b, respectively, and the sliding plate 15 is forcibly pushed down. The drawbacks such as are solved.

However, as in the example of FIGS. 11 and 12 and the example of FIG. 13, the lever 14 projects laterally, which restricts the mounting position and hinders overall size reduction. ing.

An object of the present invention is to provide a card connector which can solve the above problems and can be downsized.

(Means for Achieving the Object) In order to achieve the above object, in the IC card connector, housings 20 and 60 to which an IC card can be attached, and rows on both sides in the housings 20 and 60 are arranged so as to face each other. A plurality of contact pins 25 and 68, which are implanted so as to oppose each other in a direction opposite to each other, and the contact pins 25 and 68 facing each other, are vertically movable between the housings 20 and 60.
Has an insertion hole 32 ', 75 penetrating up and down through which the IC card can be inserted, and engages with the contact pin 25, 68 when moved to the upper or lower side of the contact pin 25, 68. Contact part of the contact pins 25, 68 by elastically deforming outward of the housing 20, 60 against elastic force
When 25-4 and 68-3 are opened at least wider than the thickness of the IC card, and when they are moved in the direction opposite to the upper or lower side, the pressing engagement with the contact pins 25 and 68 is released and the contact portion 25 -4 and 68-3 are provided with floats 30 and 70 that are in a state in which they can be connected to an IC card and are elastically pressed upward by an elastic member. , 70, the contact parts 25-4, 68-3 of the contact pins 25, 68 are previously opened, and the IC card is inserted into the insertion holes 32 ', 75 to move the floats 30, 70. By doing so, the contact pins 25 and 68 are configured to contact and hold the IC card.

Some housings 20 and 60 are provided with partition walls 22 and 65 that regulate the lateral positions of the contact pins 25 and 68.

(Operation) When the float is moved upward with respect to the housing before the IC card 5 is mounted and removed, the contact pins open outward facing each other due to the leg opening member of the float, and the contact pins are mounted and unloaded. Since it does not contact the IC card 5, it is easy to insert and remove.

Example 1 Example 1 FIG. 1 is a cutaway perspective view of a main part, FIG. 2 is a perspective view of a float, FIG. 3 is a plan view of a card connector, and FIG. A cross-sectional view of the state, (b) is a cross-sectional view of the state where the card is mounted (however, the card is omitted), FIG. 5 is a vertical cross-sectional view showing the operation, and (a) is in the middle of mounting (pulling out) Is a state diagram, and (b) is a state diagram at the time of mounting.

This card connector comprises a housing 20 and a float 30.

The housing 20 has an E-shape with an upward cross section, and has an elongated shape. The jetty in the center is the base 20 for the IC card.
-1, and a plurality of slits 23 are formed on the inner surfaces on both sides in parallel with the vertical direction by a plurality of partition walls 22. Contact pins 25 are inserted into the slits 23 through the mounting holes 24 on the bottom surface of the housing 20.

The upper end of the leg portion 25-1 of the contact pin 25 serves as a first arm 25-2, and the upper end of the first arm 25-2 is bent inward to form a second arm 25-3. A contact portion 25-4 is formed, and the upper end of the contact portion 25-4 is bent outward at a substantially right angle to form a guide portion 25-6.

At both ends of the housing 20, locking pieces 26 having locking claws 26-1 for preventing the float 30 from coming out are provided on the outer side, respectively.

A protrusion 28 is formed inside the locking piece 26 to accommodate a lower end of a spring 27 that repels the float 30 upward.
29 are provided.

Further, inside the protrusion 29, the float 30 has the above-mentioned spring.
Second retaining pieces 21 each having outwardly extending retaining claws 21-1 are provided in order to hold the depressed 27 against the repulsive force.

The float 30 comprises a holding portion 31 at both ends and two drive arms 32, 32 connecting the holding portions 31, 31.

A step portion 33 that engages with the engaging claw 26-1 of the engaging piece 26 is formed on the outside of the holding portion 31, and the second engaging piece is formed on the inside.
A locking hole 34 through which the 21 penetrates is formed. A concave portion 35 into which the protrusion 29 of the housing 20 is fitted and a concave portion 36 into which the spring 27 is inserted are formed in the inner side of the step portion 33 and the locking hole 34, and the concave portion 35 is formed in the inner portion of the concave portion 35. There is.

The drive arm 32 is composed of two parallel arms. The opposing intermediate portions of the drive arm 32 are formed so as to sandwich the pedestal 20-1 at the center of the housing 20, and the outer side surface is pushed upward. When contacted, it contacts the second arm 25-3 of the contact pin 25 to move the contact portion 25-4 to the outside. An insertion hole 32 'is formed between the two drive arms 32, 32, and the stepped portion 33 of the float 30 contacts the locking claw 26-1 of the locking piece 26 via the springs 27, 27. Is inserted into the pedestal 20-1.

Next, the operation of this IC card connector will be described. In the state of FIG. 5 (a), the contact terminal portion of the IC card 5 is directed downward, and the float 30 is inserted through the insertion hole 32 'between the drive arms 32, 32 until it comes into contact with the pedestal 20-1. The housing 20 and the float 30 in this state are as shown in FIG.

After inserting the IC card 5, holding parts 31 on both sides of the float 30
Is uniformly pushed down, and the locking claw 21-1 of the second locking piece 21 comes out above the locking hole 34 to lock the float 30 in the pressed down position.

In this case, since the drive arm 32 is also pushed down at the same time,
The pushing open of the second arm 25-3 of the contact pin 25 is released, and the contact portion 25-4 comes into contact with the terminal of the IC card 5.

When removing the IC card 5, the reverse operation to the above may be performed. That is, when the upper ends of the second locking pieces 21, 21 on both sides are pushed inward and the locking is released, the float 30 is pushed upward by the elastic force of the spring 27, and the locking piece 26 causes the step portion 33 to rise. Are locked (Fig. 4 (a)).

In this state, the contact portion 25-4 of the contact pin 25 is pushed outward by the drive arm 32, so that the contact with the IC card 5 is released. The IC card 5 should be removed in this state.

Example 2 The card connector of this example omits the second locking piece. FIG. 6 is a partial sectional view, FIG. 7 is a lateral sectional view,
FIG. 8 is a plan view.

The whole structure is composed of the housing 60 and the float 70, as in the case of each of the above-described embodiments.

The housing 60 is provided with locking pieces 61 having locking claws 61-1 for restricting the highest position of the float 70 at both ends.
A recess 63 for inserting the lower end of a spring 62 that repels the float 70 upward is bored inside the locking piece 61.

The middle portion is provided with guides 64, 64 in a jetty shape on both sides along the longitudinal direction, a plurality of partition walls 65 are provided in parallel on the inner surface of the guide 64, and a slit 66 is formed between them. There is. Contact pins 68 implanted in the bottom surface 67 of the housing 60 are provided in the slits 66, respectively.

The upper end of the contact pin 68 is folded back inward, and the contact pin 68 is bent diagonally inward under the bending point 68-1 to form an arm portion.
68-2 is formed, and the lower end of the arm portion 68-2 is bent outward to form a contact portion 68-3.

The float 70 has locking portions 71, 71 at both ends and the locking portions 71, 71.
It is composed of a holding section 72 in the middle.

The locking portion 71 is provided with a stepped portion 73 that locks with the locking portion 61 of the housing 60 on the outer side, and a recessed portion 74 for inserting the upper end of the spring 62 downward is formed inside the stepped portion 73. It is set up.

The holding portion 72 has guides 76, 76 on both sides which slide on the guide 64.
Is provided, and an insertion hole 75 for inserting the IC card 5 is provided along the center line of the upper surface. Inner surfaces of the holding portions 72 on both sides of the lower end of the insertion hole 75 are outwardly inclined surfaces to form widened inclined surfaces 77, 77.

Next, the operation in the case of this embodiment will be described. Since the float 70 is always pushed up in this connector, when the float 70 is pushed down against the elastic force of the spring 62 when the IC card 5 is inserted, the bending point at the upper end of the contact pin 68 68-1 is pushed by the widening slope 77 of the float 70 and is opened to both sides. In this state, the terminal portion of the IC card 5 is inserted through the insertion hole 75 until its lower end contacts the bottom surface 67 of the housing 60.

In this condition, if you release the float 70
70 is lifted by the elastic force of the spring 62 to release the open state of the contact pin 68, and its contact portion 68-3 comes into contact with the terminal portion of the IC card 5.

When the IC card 5 is removed, the float 70 is pushed down again in the order of the above operation, and the IC card 5 can be removed instead of being inserted, and therefore the description thereof is omitted.

(Effects of the Invention) As described above, the card connector of the present invention has the following effects.

1) The IC card can be inserted, taken out, and contacted with the contact pins by simply pressing down the float, making it easy to attach and detach.

2) It is easy to automate the attachment / detachment because the handle is not used and only the pressing is required.

3) Since the handle is not used, there is no lateral protrusion and the device can be made compact, the number of attachments to the test attachment substrate can be increased, and no operating space is required.

[Brief description of drawings]

FIG. 1 is a perspective cutaway view of the essential parts of the first embodiment, FIG. 2 is a perspective view of the float, FIG. 3 is a plan view, and FIG. 4 is a longitudinal sectional view of the same. The state diagram,
(B) is a state diagram with the IC card installed (however, the IC card is omitted), and FIG. 5 is a vertical cross-sectional view showing the same operation, and (A) is a state diagram with the IC card being attached (during extraction). ,
(B) is a state diagram at the time of mounting, FIG. 6 is a sectional view of an essential part of the second embodiment, FIG. 7 is a transverse sectional view thereof, and FIG. 8 is a plan view thereof.
FIG. 9 is a perspective view of a conventional card connector, FIG. 10 is a transverse sectional view of the same, and (a) is a state diagram at the time of insertion (removal),
(B) is a state diagram when mounted, FIG. 11 is a cross-sectional view of the improved conventional card connector, (a) is a vertical sectional view of the mounted state (however, the IC card is omitted), (b) Is a cross-sectional view taken along the line A-A of (a), and FIG. 12 is a cross-sectional view during the mounting process.
Is a vertical sectional view (however, the IC card is omitted), (b)
Is a cross-sectional view taken along the line BB of (a), FIG. 13 is a vertical cross-sectional view of a further improved conventional card connector, and (a) is a cross-sectional view at the time of mounting (however, the IC card is omitted). , (B) are cross-sectional views in a state in which they are not mounted. 20: Housing, 22: Partition wall, 25: Contact pin, 26: Locking piece, 27: Spring, 30: Float, 32 ': Insert hole, 33: Step, 40: Housing, 42: Contact pin, 44: Locking piece, 4
6: Spring, 60: Housing, 61: Locking piece, 62: Spring, 65: Partition wall, 68: Contact pin, 70: Float, 73: Step, 75: Insert hole.

Claims (2)

[Scope of utility model registration request] 1. In an IC card connector, a housing to which an IC card can be attached, and a plurality of contacts which are planted in rows on both sides of the housing so as to face each other and have elastic forces in directions opposite to each other. Between the pin and the contact pin facing each other, it is attached to the housing so that it can move up and down, and has an insertion hole that penetrates vertically to insert the IC card, and engages with the contact pin when moving up or down. Then, the contact pins are elastically deformed in the outward direction against the elastic force of the contact pins so that the contact portions of the contact pins are opened wider than at least the thickness of the IC card. When it moves in the opposite direction, the pressure engagement with the contact pin is released and the contact part is connected to the IC card. And a float that is elastically pressed upward by an elastic member. When mounting the IC card, the contact portions of the contact pins are previously opened by the float. In this state, the IC card is inserted into the insertion hole, and the float is moved so that the contact pin holds the IC card in contact with the IC card. connector. 2. The unloaded insertable / removable IC card connector according to claim 1, wherein the housing is provided with a partition wall for regulating a lateral position of the contact pin.