JPH01243386A - Connector for card - Google Patents

Abstract

PURPOSE:To improve the connection reliability by constituting a connector so that a pulsed slider lifts a contact when a card is pushed in and the contact section of the contact is brought into contact with a contact pad without being slid on the insulator of the card. CONSTITUTION:When a card 1 is inserted, the tip section 12 of the card presses a contact section 32, a slider 3 is moved together with the card 1, the inclined face 31a of the slider is brought into contact with a push-up section 21b of the contact to push up the contact 2. The push-up section 21b rides on a projection 31b before the tip section 12 reaches the position of a contact section 21a, thus the contact section 21a is separated from the bottom of a case 2, the card 1 is inserted while a projection 14 and the contact section 21a are not slid. When the card 1 is further inserted, the slider 3 reaches the back of the case 2, the push-up section 21b passes the projection 31b and is dropped in a recess 31c, the contact section 21a presses a contact pad 13 in place of it. A connection section 21 is coupled with the projection 14, the slider 3 is not released due to the excitation of a coil spring 4, the insertion state is maintained.

Description

[Detailed Description of the Invention] [Summary] Concerning a card connector with a small mounting space and high reliability, the structure is simple, the cost is low, the card can be inserted just by inserting it, and the space for operation is large in the thickness direction. In order to provide a card connector that does not require a contact pad and does not cause sliding between the contact and the insulator of the card during insertion and removal, the contact has a push-up part at the tip and a contact part that contacts the contact pad of the card in the middle. A case that is implanted and can accommodate a card in a removable manner; The slider is movably held in the case, and has a protrusion that pushes up the push-up part and a recess that releases the push-up when the contact pad of the card is inserted to the position of the contact part of the contact. .

[Industrial application field]

The present invention relates to a highly reliable card connector with a small mounting space.

In recent years, cards such as IC cards have been applied to various electronic devices.
In line with this, development of connectors to be applied to cards is progressing.

In view of longevity and operability, such card connectors are required to have a connector that does not cause friction with the insulating portion of the card during insertion and removal.

In addition, due to the demand for smaller and more portable equipment, it is necessary that the mounting space and operating space be small.

[Prior Art] FIG. 3 is a diagram showing a conventional card connector, and FIG. 4 is a diagram showing a conventional card connector that does not have contact force during insertion and removal.

In the conventional card connector, as shown in a cross-sectional view in FIG. 3, a case 5 has a card accommodating part 51 with one side open, and a contact 52 is installed so that one end is located in the card accommodating part 51. When the card 1 is inserted through the opening, the thickness of the card 1 lifts up the contact portion of the contact 52, and the springiness of the contact 52 brings it into contact with the contact pad 13 provided in the recess at the tip of the card 1. .

The contact pads 13 of the card 1 to be inserted are provided at the bottom of the recess at a position away from the end surface of the card to prevent electrostatic damage to the built-in semiconductor chip.

[Problem to be solved by the invention]

In such a card connector, the contacts 52 and the card 1 are in contact during the entire process of insertion and removal, and the contact portion of the contact 52 is made of an insulating material (plastic material) until it reaches the contact pad 13 of the card. Since the card slides on the protrusion 14, there is a problem that contact reliability is deteriorated due to deformation of the card, generation of abrasion powder, and contamination of the contact portion due to abrasion of the insulating material.

To solve this problem, a zero insertion force connector shown in FIG. 4 was developed.

The card accommodating part 6 and the contact setting part 7 are separate members, and the card accommodating part 6 and the contact setting part 7 are integrated so that they can be opened and closed in the rotational direction via a rotating shaft 71. There is. In such a connector, first, with the card accommodating section 6 open, insert the card 1 into the accommodating section 6 in the direction of arrow A, and then insert the card accommodating section 6 in the direction of arrow B.
By rotating the card 1 in the direction and closing it, the card 1 and the contact 72 are brought into contact through the contact window 61 on the lower surface of the card accommodating portion 6 .

In this connector, the contacts of the contacts do not slide on the card's insulator when inserting or removing the card, but since the card accommodating part is rotated, a large amount of space is required in the direction of the thickness of the card, making it possible to create a small and compact device. Problems arise in that it cannot be implemented, and the structure is complicated and costs increase due to the rotating mechanism.

The present invention was created in view of these points, and has a simple structure, low cost, can be inserted simply by inserting the card, does not require any space for operation in the thickness direction, and is easy to insert and remove. The purpose of the present invention is to provide a card connector in which there is no sliding between the contacts and the card insulator.

[Means to solve the problem]

The above problem is solved by the present invention, which provides a case in which a contact having a push-up part at the tip and a contact part that contacts a contact pad of a card in the middle is implanted, and can accommodate a card in a removable manner, and a card to be inserted. The protrusion pushes up the push-up part of the contact so that the contact part of the contact does not press the card during the movement, and the contact pad of the card reaches the position of the contact part of the contact. A card connector comprising: a slider formed with a recess that releases the push-up when inserted and movably held in the case; The present invention is solved by a card connector comprising a coil spring that biases the slider to further push out the slider after the protrusion of the slider passes the push-up part of the contact.

[Effect]

When inserting a card, the card is simply pushed in, and the slider that is pushed together lifts the contacts so that the contact portions of the contacts come into contact with the contact pads without sliding on the insulator of the card.

Furthermore, when removing the card, the contacts are similarly lifted by pulling out the slider, so the contact portions do not slide on the insulator of the card.

Furthermore, it is easy to form a push-up part at the tip of the contact at the same time as forming the contact, and since it only incorporates a slider that moves linearly and a coil spring like an hour wheel, the manufacturing cost is low.

〔Example〕

FIG. 1 is a diagram for explaining the invention in detail, and FIG. 2 is an exploded view of an embodiment of the invention.

As shown in FIGS. 1 and 2, the card connector of this embodiment includes a case 2 provided with contacts 21, a slider 3 slidably incorporated in the upper part of the case 2 in the form of a lid, and the case 2. It is composed of a coil spring 4 that biases the slider 3 inside the slider 3 in the pulling direction. Reference numeral 1 denotes a card to be inserted, which has a contact pad 13 on the bottom part away from the tip of the slit 11 on the top surface.

Case 2 has an open top and sliders 3 on both side walls.
A guide groove 22 for slidably holding the card 1 and a card 'a23 for guiding the inserted card 1 are formed. A plurality of contacts 21 each having a plurality of bent portions including an intermediate contact portion 21a and a raised portion 21b at the tip are implanted in two rows in the case 2 at a predetermined pitch at their rear ends.

The slider 3 is a flat plate-like member, and has a slit 31 on its top surface for guiding the contact 21, a contact portion 32 on its bottom surface that is pressed by the tip 12 of the card 1, and a rear side surface for pulling out the slider 3. For example, a gripping portion 33 is formed. The bottom of each slit 31 is opened on the lower surface of the slider 3 so that the contact portion 21a of the contact can come into contact with the upper surface of the card 1 on the tip side, and the inclined surface 31a, protrusion 31b, and recess 31c are formed from the middle toward the rear. They are formed in sequence. Such a slider 3 has a contact portion 32 pressed by the tip end 12 of the card and is movable to the left when the slider 3 is attached to the case 2.
By the leftward movement, the push-up portion 21b at the tip of the contact is pushed up along the slope 31a to the protrusion 31b, and then falls into the recess 31c.

The coil spring 4 is incorporated deep into the guide groove 22 of the case 2 and biases both ends of the tip of the slider 3 in a direction to push it out of the case.

The operation of this embodiment configured in this way will be explained using the first tooth.

FIG. 1(a) shows the state before the card 1 is inserted, in which the slider 3 is pressed by the coil spring 4 and is at the most extended position relative to the case 2, and the contacts 21 are free. The contact portion 21a is in contact with the bottom of the case 2.

When the card 1 is inserted, the tip 12 of the card presses the contact part 32 of the slider as shown by the arrow, so the slider 3 moves to the left together with the card 1, and eventually the sloped surface 31a of the slider pushes up the contact. The contact 2 is pushed up by coming into contact with the portion 21b.

The tip end 12 of the card 1 is the contact part 21 of the contact.
Before reaching position a, the push-up part 21b rides on the protrusion 31b of the slider, so that the contact part 21a of the contact is sufficiently far away from the bottom surface of the case 2, as shown in FIG. The protrusion 14 of the card 1 and the contact portion 21a of the contact are inserted without sliding.

When the card 1 is further pushed in, as shown in FIG. As a result, the push-up at the tip of the contact 2 is eliminated, and instead the middle contact portion 21a
presses the contact pad 13 of the card 1 with a predetermined contact force. Then, the contact portion 21 of the contact is attached to the protrusion 14 of the card 1.
coil spring 4 engages and acts to prevent removal.
The slider 3 does not come out due to the bias and the inserted state is maintained.

Next, when removing the slider 3, as shown by the arrow in FIG.
Grab 3 and slider 3 to case? When force is applied in the direction to pull out the card, the push-up part 21b of the contact rides on the protrusion 31b again from the opposite direction, and while the contact part 21a is lifted, the card is pressed in the pull-out direction by the contact part 32 of the slider. 1 can be pulled out without sliding on the contact portion 21a of the contact.

After finishing applying the pulling force to the slider 3,
The coil spring 4 biases the slider 3 to push it further out of the case 2, making it easier to take out the card and maintaining the initial state shown in FIG.

In this way, in the present invention, by lifting the contacts with the slider that is pushed by the inserted card and moves together, the card can be inserted without sliding between the contacts and the insulating material of the card, and when removing the card, the slider can be pulled out. This makes it possible to remove the card without sliding, and a long-life card connector that does not require any operating space above the connector can be realized without adding any complicated mechanism.

〔Effect of the invention〕

According to the present invention, it is possible to configure a card connector with a small mounting space and high connection reliability using a small number of parts, which significantly contributes to the miniaturization and economicalization of devices that use IC cards and the like. It is.

[Brief explanation of the drawing]

Fig. 1 is a sectional view for explaining the present invention in detail, Fig. 2 is an exploded view of an embodiment of the invention, Fig. 3 is a diagram showing a conventional card connector, and Fig. 4 shows contact during insertion and removal. 1 is a diagram showing a conventional card connector with no force; FIG. In the figure, 1-force-do, 11- slit, 12
--Tip, 13 --Contact pad, 1
4... Protrusion, 2--Case, 21
- Contact, 21a-・Contact part, 21b
- push-up part, 22 - guide groove, 23 - card groove, 3 - slider, 31 - slit, 31a - slope, 31b - protrusion, 31c - recess, 32 - contact part,
33--Gripping part, 4-Coil spring. 10th

Claims (2)

[Claims] 1. A contact (21) having a push-up part (21b) at the tip and a contact part (21a) in the middle that contacts the contact pad (13) of the card (1) is implanted to accommodate the card (1) in a removable manner. The card (1) is pushed by the inserted card (1) and moves together with the card (1), and during the movement, the contact portion (21a) of the contact (21) touches the card (1). ) for pushing up the push-up part (21b) of the contact (21) so as not to press the contact (21).
31b) and a recess (31c) that releases the push-up when the contact pad (13) of the card (1) is inserted to the position of the contact portion (21a) of the contact (21), and A card connector comprising: a slider (3) movably held in a case (2); 2. When removing the card (1), the protrusion (
31b) passes through the push-up portion (21b) of the contact (21), the contact (21) further includes a coil spring (4) that biases the slider (3) to push the slider (3) further. The card connector described in item 1.