JPH0229665Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Field of industrial use) This invention is a method for connecting IC cards and equipment.
This relates to ZIF (zero insertion/extraction force) connectors.

(Prior Art) Conventional connectors for connecting IC cards and devices have a structure in which the contact pressure between the contact portion of the IC card and the contacts of the connector depends entirely on the elastic force of the contacts.

(Problems to be solved by the invention) When the contact pressure between the IC card and the connector is obtained by the elastic force of the contacts, a material having a certain degree of elastic force must be selected for the contacts. On the other hand, as a matter of course, contacts must have electrical conductivity.

However, since there is no material that has both sufficient elasticity and electrical conductivity, electrical conductivity tends to be given priority, and elasticity tends to be sacrificed. For this reason, there was a drawback that sufficient contact pressure between the IC card and the connector could not be obtained, making it difficult to obtain a reliable connection.

Therefore, an object of the present invention is to provide a ZIF connector for IC cards that has high contact pressure and excellent electrical conductivity.

(Means for Solving the Problems) According to the present invention, an insulator is provided with a space having an insertion slot on one end surface into which an IC card can be inserted, and a shaft mounted in the inner part of the space of the insulator has an intermediate space. a push plate having one end extending outward from the one end surface of the insulator; and a push plate that faces one side of the other end of the push plate and contacts and separates from the contact portion of the IC card. An IC is formed between a movable contact, a presser spring that biases the push plate toward the contact, a first position where rotation of the push plate is locked, and a second position where the push plate is not locked. The plate holder is slidable in the card insertion/removal direction and is pushed to the second position when an IC card is inserted, and a return spring biases the plate holder to the first position. Features for IC cards
A ZIF connector is obtained.

(Embodiments) The present invention will be described below with reference to embodiments shown in the drawings.

1 to 3 show general views of the connector of the present invention. As is clear from this figure,
The connector 1 is formed into a flat plate shape, and an insertion slot 3 for an IC card 2 is provided on one side thereof.

Next, the configuration will be explained with reference to FIG. 4. The connector 1 includes a front insulator 1a having a substantially rectangular cylindrical shape and a rear insulator 1b closing one end of the front insulator 1a. Therefore, one end surface of the connector 1, that is, the side opposite to the rear insulator 1b, is open.
It serves as an insertion slot 3 for an IC card 2.

The rear insulator 1b side of the front insulator 1a is expanded beyond the insertion slot 3 for the IC card 2, and a push plate 4 is provided in this expanded portion. This push plate 4 is rotatably supported by a shaft 5 attached to the front insulator 1a, and one end thereof extends to the outside of the surface having the IC card insertion slot 3.
Further, a plate holder 6 is provided below the push plate 4 so as to be slidable in the insertion/extraction direction 11 of the IC card 2. A return spring 7 is provided between the rear insulator 1b and the plate holder 6, and always urges the plate holder 6 toward the IC card insertion slot 3 side.

On the other hand, a presser spring 8 is provided on the rear insulator 1b. This presser spring 8 constantly biases the push plate 4 so as to press it down toward the plate presser 6 side.

Further, the rear insulator 1b is provided with a pair of contacts 9a and 9b located on the opposite side of the presser spring 8 with the push plate 4 interposed therebetween. The pair of contacts 9a, 9b is provided at a distance between one end thereof such that the contact portion 2a of the IC card 2 can be inserted, and the other end thereof extends outside the rear insulator 1b.

Next, the insertion and removal of the IC card 2 into the connector 1 will be explained with reference to FIG. 5.

Before inserting the IC card 2, the connector 1 is held in the state shown in FIG. In this state, the push plate 4 is urged downward by the presser spring 8. However, since the plate holder 6 is pushed toward the entry port 3 by the spring 7 and positioned below the push plate 4, the push plate 4 is supported by the plate holder 6 and kept substantially horizontal. Therefore, contacts 9a and 9b are ICs.
The gap is maintained wider than the thickness of the contact portion 2a of the card 2.

When the IC card 2 is inserted from the insertion slot 3 in this state, the IC card 2 is inserted into the contact area 2 as shown in FIG.
The tip of a comes into contact with the plate holder 6. and,
When the IC card 2 is pushed further, the plate holder 6 compresses the spring 7 and moves toward the rear insulator 1b, so that the support of the push plate 4 by the plate holder 6 is released. Therefore, as shown in FIG. 5, the push plate 4 is rotated about the shaft 5 by the presser spring 8, and first presses the contact portion 2a of the IC card 2 via the upper contact 9a. At this time, the tip of the IC card 2 is pushed down slightly so that it also comes into contact with the contact 9b.

Note that the tips of the contacts 9a and 9b are bent into an F-shape, and each tip is supported by the push plate 4 and the inner wall surface of the front insulator 1a, and the F-shape protrusion allows the IC card to be inserted into the IC card. The contact portions 2a of 2 are held together.

On the other hand, when removing the IC card 2, when the end of the push plate 4 extending outward from the insertion slot 3 is pushed down, the plate 4 is pushed against the presser spring 8 and centered around the shaft 5. Rotate. Therefore, the contact portion 2a of the IC card 2 is released from being held by the contacts 9a, 9b, and the IC card 2 is pushed toward the insertion slot 3 by the return spring 7, so that it can be easily taken out.

(Effects of the invention) According to the invention, the contact pressure between the contact part of the IC card and the connector is a ZIF that does not depend on the elastic force of the contact.
(zero insertion/extraction force) type, so the connector has a long lifespan.

Furthermore, the contact pressure of the contact can be freely adjusted by selecting the presser spring, increasing the degree of freedom in designing the contact.

Furthermore, the movable part that holds the contact element applies the principle of leverage to increase the contact pressure and reduce the operating force, so that the contact is reliable and the operation is easy.

[Brief explanation of the drawing]

Figures 1 to 3 show an example of the connector of the present invention, where Figure 1 is a plan view, Figure 2 is a front view, and Figure 2 is a front view.
FIG. 3 is a side view. Figures 4 and 5 are
FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 4, and FIG. 5 is a diagram showing a state in which an IC card is not held. 1a...Front insulator, 1b...Rear insulator, 2...IC card, 3...Insertion slot, 4...Push plate, 5...Shaft, 6...
...Plate presser, 7...Return spring, 8...Press spring, 9a, 9b...Contact.

Claims (1)

[Scope of utility model registration request] an insulator having a space on one end surface having an insertion slot into which an IC card can be inserted; an intermediate portion of the insulator is pivotally supported by a shaft attached to the inner part of the space; and one end is outside the one end surface of the insulator. a push plate extending in the opposite direction, a movable contact that faces one side of the other end of the push plate and makes contact with and separates from the contact portion of the IC card, and the push plate is attached toward the contact. The pusher plate is slidable in the IC card insertion/removal direction between the pressed presser spring and the first position where the rotation of the push plate is locked and the second position where it is not locked, and when the IC card is inserted. A ZIF connector for an IC card, comprising: a plate holder that is pushed to the second position; and a return spring that biases the plate holder to the first position.